Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021

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Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
Cassava Sciences (SAVA)
In Search of Asymmetric Opportunities
July 19, 2021
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
Disclaimer

This presentation has been prepared for informational purposes only and does not constitute
an offer to sell or a solicitation to purchase any security. The contents of this presentation are
not intended to provide investment advice and under no circumstances does this presentation
represent a recommendation to buy or sell a security. This information contained herein
reflects the opinions of the presenter as of the date hereof.

The analysis may include certain forward looking statements, estimates and projections. No
representation, expressed or implied, is made as to the accuracy or completeness of such
statements, estimates or projections. Actual results may vary materially from such statements,
estimates or projections.

This presentation is intended to be read with reference to any and all footnotes and appendices.

All investments, including investments discussed herein, contains risk of loss, including possible
loss of your entire investment.

                                                                                              2
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
Career Defining Opportunity

     We have been professional investors for
    decades and this is the greatest investment
         opportunity we have ever seen

Source:
Note:                                        3
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
The Opportunity

  Why is the opportunity unique?
  • ~$3 billion enterprise value addressing a >$100 billion TAM in Alzheimer’s
  • Alzheimer’s is our biggest unmet medical need with over 30 million people worldwide
    diagnosed
  • Renewed focus on Alzheimer’s following Biogen’s controversial drug approval in June 2021
  • Cassava’s Simufilam has unprecedented and consistent data with a flawless safety profile, and
    a unique mechanism of action
  • Clear path to value realization with ~9 data sets to be released between now and early 2022
  • Cassava will be the first company ever to present improvement of cognition at 9-months
    when they present at AAIC on July 29th. Cassava will follow that with historic 12-month
    results in September
  • Two phase 3 studies beginning in the second half of 2021
  • The most bullish (yet credible) CEO we’ve ever encountered
  • >5X potential return

Source: World Health Organization, Annovis Bio, Cassava Sciences
Note: Enterprise value as of 7/19/21                                                       4
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
Cassava Sciences YTD
Population
in millions                                 SAVA YTD Stock Performance
$116.00
                                        2/2/21 - 2/4/21
                                   Stock up >400% from pre-                                   6/21/21
                                   announcement price. Intra-                           Announcement of 6-
  $96.00                              day all-time high of             4/21/21           month biomarkers
                                   $117.54 reached on 2/4/21     Announces that 9-       and SavaDx being
                                                                month interim results    presented at AAIC
  $76.00                                                         will be presented at
                                                                        AAIC

  $56.00           2/2/21
                 Announces
              interim 6-month
                results from
  $36.00      open-label study                                                                            5/10/21
                                                                                                    Announces initiation
                                                                                                    of CMS study earlier
                                                                                                       than expected
  $16.00

  -$4.00

Source: Cap IQ, Cassava Sciences
Note: Pricing through 7/19/21                                                                                              5
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
Cassava Sciences Short-Term Milestones

                                        September 2021             November 2021
                                       Commence phase              Begin phase 3b
                 6/7/21
                                        3a study of 600             study of 1,000
              Biogen receives                                                             Other potential 2021 catalysts
                                         patients for 12            patients for 18
             FDA approval of
                                       months examining           months examining
               aducanumab
                                          symptomatic             disease-modifying   •    Release of 12-month
                                         improvement                    dffects            biomarker data for open-label
                                                                                           study
                                                                                      •    Publication of data in a
                                                                                           respected peer-reviewed
                                                                                           journal (Ex: Nature Medicine
                                                                                           or New England Journal of
                                                                                           Medicine)
                                                                                      •    Initiation of coverage by
                                                                                           additional sell-side research
                                    7/26/21 - 7/29/21                                 •    November 9-12, 2021: CTAD
             5/10/21
                                     Present 9-month           September 2021              conference and potential
    Initiation of Cognition
    Maintenance Study for
                                   cognition and safety      Announce 12-month             presentation from Cassava
                                     Results, 6-Month        cognition and safety          Sciences
      patients who have
                                  biomarker results, and     data from open-label
    completed one year of
                                clinical results of SavaDx           study
            treatment
                                          at AAIC

Source: Cassava Sciences
Note:                                                                                                                6
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
The Growing Alzheimer’s Problem

                                  7
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
AD is our Largest Unmet Medical Need
  “You know, if we don’t do something about Alzheimer’s in America, every single, solitary hospital bed that
  exists in America — as the nurses can tell you — every single one will be occupied in the next 15 years with
  an Alzheimer’s patient — every one.”
                   - President Joe Biden on May 27, 2021

  Alzheimer’s by the numbers:

                                50 Million+                                                              60-70%
                      Worldwide Dementia patients                                            Of Dementia cases are Alzheimer’s

                                152 Million                                                                  6th
                 Projected Alzheimer’s cases by 2050                                         Leading cause of death for all adults

Source: World Health Organization, Alzheimer’s Disease International, CDC, Washington Post
Note:                                                                                                                                8
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
Alzheimer’s is a Global Problem
 Population
 in millions
                                          Global Growth in Alzheimer’s Projections
    50

      45
                                                                                                                               40 Million
      40

      35

      30

      25

      20                                                                                18 Million

      15                               13 Million
                                                                                                                  10 Million
      10                                                                    8 Million
                         6 Million
       5

       0
                                     US                                             Europe                                China
                                                         Current Diagnosed (Estimate)           2050 Projection

Source: Alzheimer’s Association, Alzheimer-Europe.org, Chinese Geriatrics Society
Note:                                                                                                                                       9
Cassava Sciences (SAVA) In Search of Asymmetric Opportunities - July 19, 2021
The World is Rapidly Aging
  Population
  in millions                              Worldwide Growth in Elderly Population
     2,500

                                                  2 Billion
     2,000

     1,500

     1,000                          900 Million

       500                                                                                                   434 Million

                                                                                             125 Million
          0
                            Number of People Worldwide Ages 60+                          Number of People Worldwide Ages 80+
                                                              2015     2050 (Estimate)
                     (Population in Millions)
                                                              2015 World    2050 World           % of 2015   % of 2050
                                                                                        % Growth
                                                              Population    Population           Population Population
                     Number of People Worldwide Ages 60+              900         2,000    122%         12%        22%
                     Number of People Worldwide Ages 80+              125           434    247%          2%         5%
                     World Population                               7,339         9,091     24%            -           -

Source: World Health Organization
Note:                                                                                                                          10
The Problem is Getting Worse

Source: Annovis Bio
Note:                          11
The Problem is Getting Worse (Cont..)

Source: Annovis Bio
Note:                                   12
Devastating Financial Burden

                               13
$1 Trillion Problem

             $355 Billion  $1.1 Trillion                                          15.3 Billion
               2021 projected annual Alzheimer’s and                     Hours provided by caregivers in 2020
               other dementias cost in the US and the                      valued at nearly ~$257 billion
                        2050 projected cost

                            $373 Thousand                                          23x Higher
                   Estimated lifetime cost of care for                 Annual Medicaid payment for those 65 and
                        someone with dementia                           older with Alzheimer’s v. those without

Source: Alzheimer’s Association, Alzheimer’s Association 2021 report
Note:                                                                                                           14
Current Treatment Options

                            15
Acetylcholinesterase Inhibitors
Massively flawed class of drugs that has been the only option for the last 20 years
    • Only works temporarily (~6 months on average). With use, the brains receptors are
      desensitized, and the drug’s efficacy is lost
    • Acetylcholinesterase Inhibitors generated >$5 billion in sales in 2019
    • Marred by side effects, which result in patients discontinuing treatment due to diminished
      quality of life / limited efficacy
  Acetylcholinesterase Inhibitors stats:
                                8 out of 10                                       4.5 out of 10
                      AD patients start out on an                        Remain on therapy at 12 months due to
                     Acetylcholinesterase Inhibitor                                   side-effects

                                 12 million                                             30%
                    Prescriptions dispensed per year                      Discontinue by the 4th month of use

Source: Alpha Cognition presentation (Symphony Health data), JAMA, NIH
Note:                                                                                                            16
Amyloid Plaque Treatments

  Billions of dollars and decades of time spent pursuing the amyloid thesis
    • An academically strong thesis, years of failed trials have shown that this is likely the
      wrong strategy for addressing Alzheimer’s
    • Amyloid plaque is associated with Alzheimer’s disease, but it appears that clearing plaque
      on its own is insufficient for improving symptoms
    • Big pharma has mostly focused on the amyloid plaque approach with Biogen’s recently
      approved Aduhelm and Eli Lilly’s donanemab (received BTD on 6/24/21) both being
      drugs that target clearing amyloid plaque (albeit slightly different targets)
    • Amyloid plaque treatments have lacked clinical results, are inefficient to administer
      intravenously, require multiple MRI’s, carry a hefty price tag and consistently have
      troubling side effects such as brain swelling and microhemorrhages

Source: Washington Post, NIH, FDA, Eli Lilly, New York Times, Harvard Health
Note:                                                                                            17
Aduhelm – Troubling FDA Decision

  Aduhelm was approved despite opposition from the FDA advisory committee
    • Patient groups have been desperate for any treatment leaving the FDA with the thought
      that something/anything was better than nothing
    • 3 out of the 11 experts on the FDA CNS committee resigned over the approval of
      Aduhelm
    • In two phase 3 studies, one study outright failed (Engage) while the other study (Emerge)
      still failed to improve cognition but did improve relative to the placebo in the high-dose
      treatment
    • Aduhelm did show an improvement in αβ-42, p-tau and t-tau biomarkers
    • The clearing of amyloid plaque is what led the FDA to grant Biogen accelerated approval
    • 34% of patients had brain-swelling, ~19% had microhemorrhages, and ~92% of patients
      had some form of adverse event

  “There is no good evidence that reducing amyloid leads to meaningful changes in the clinical course of the
  disease”
                - Dr. Aaron Kesslheim (Professor of Medicine at Harvard Medical School in a WSJ article published on 6/8/21)

Source: Biogen, Wall Street Journal, Reuters, FDA
Note:                                                                                                               18
Simufilam

            19
A Unique Mechanism of Action

  10+ years of in-house research leading to Simufilam
    • Simufilam is a proprietary, small molecule drug taken orally to treat Alzheimer’s
    • The mechanism of action reduces both neurodegeneration and neuroinflammation
    • Flawless safety profile
    • Simufilam aims to restore the normal shape and function of a scaffolding protein in the
      brain called Filamin A (FLNA). Altered Filamin A is critical in the formation of amyloid
      plaque. The hypothesis is that Simufilam bonds to altered FLNA, restores its proper
      shape and thus stops the production of amyloid plaque in the brain
    • Simufilam is a disease-modifying drug not one that is solely focused on alleviating
      symptoms
    • Our research suggests that the small-molecule approach targeting misfolded proteins has
      a long-term effect

Source: Cassava Sciences, Joe Springer
Note: See appendix for mechanism of action                                                  20
Simufilam Clinical Results

  A history of safety, cognition improvements and improvements in biomarkers
    • Phase 2b results were released in September of 2020
        • 28-day double-blind, randomized, placebo-controlled, multi-center study
        • Safe and well-tolerated
        • 98% response rate in biomarkers for Tau/p-Tau, neuroinflammation,
          neurodegeneration (25% decrease in tau/Aβ42 ratio)
        • Improvements seen in cognition with the CANTAB test (improvements over the
          placebo group in both episodic memory and spatial working memory)
        • 2b results replicated prior clinical results
    • 6-month interim analysis of the 12-month open-label study
        • Reported on the first 50 patients who’ve completed 6 months of treatment
        • Cognition scores improved by 1.6 points on ADAS-Cog 11 (10% mean
          improvement from baseline)
        • Dementia-related behavior improved by 1.3 points on NPI (Neuropsychiatric
          Inventory)

Source: Cassava Sciences, Cambridge Cognition, NCBI, Alz.Org
Note:                                                                              21
Biomarkers in Phase 2B Results

              Lower numbers are more desirable for all markers except Aβ42

Source: Cassava Sciences
Note: See appendix for additional biomarker analysis                         22
Simufilam v. Aduhelm v. Donanemab
                                                        Drug Overview Comparison
                                                        Cassava Sciences                          Biogen                              Eli Lilly
                Drug                                          Simufilam                           Aduhelm                           Donanemab

                Administered                             Orally (twice daily)          Intravenous Infusion (monthly)     Intravenous Infusion (monthly)
                                                     Targets altered Filamin A to
                                                  restore shape/function to reduce                                             Clears amyloid plaques
                Mechanism of Action                                                       Clears amyloid-β plaque
                                                       neuroinflammation and                                                     (specifically N3pG)
                                                         neurodegeneration
                                                                                      Over 30% of patients had brain- Over 25% of patients had brain-
                                                   Clean safety profile. No patient         swelling, ~19% had              swelling, ~8% had
                Safety Concerns
                                                        drug discontinuation          microhemorrhages and ~5% had microhemmorhages and ~30% had
                                                                                         to discontinue treatment       to discontinue treatment
                Cognition Improvement (At 26
                                                    10% (1.6 point improvement)            -3% (0.7 point decline)          1% (0.3 point improvement)
                Weeks) in ADAS-Cogⴕ
                                                                                                                         Improvement in clearing amyloid
                                                  Improvement across all validated    Improvement in αβ-42, p-tau, t-         plaques. Didn't produce a
                Biomarkers
                                                   Alzheimer's Disease biomarkers       tau compared to baseline           significant effect lowering tau
                                                                                                                                         load
                                                                                        $56K per annum (along with
                Cost (Estimated)                          ~$28K per annum*                                                       $50K per annum**
                                                                                              multiple MRI's)

                * Blended average between B Riley Securities estimated midpoint pricing of $18K (6/22/21 report), Jones Trading estimated pricing
                  of $40K (6/28/21 report), and Maxim Group estimated pricing of $25K (7/7/21 report)
                ** Per Truist (7/2/21 report)
                ⴕ Cassava Sciences utilized the ADAS-Cog 11 test while Biogen and Eli Lilly utilized ADAS-Cog 13. ADAS-Cog 13 is the same test as
                  ADAS-Cog 11 with the addition of two additional tasks

Source: Cassava Sciences, FDA Results, Biogen Investor Presentation, New York Times, Eli Lilly Investor Presentation, Analyst Estimates
Note:                                                                                                                                                        23
Upcoming Studies
  Cassava Sciences has already initiated its Cognition Maintenance Study
  (CMS), and their two phase 3 studies will begin in 2H 2021
                          Ongoing Cognition Maintenance Study (CMS):
                          Comparing cognition in Alzheimer’s patients who continue v. discontinue
               1          Simufilam following 1-year of treatment. The study is double-blind,
                          randomized, placebo-controlled

                          Symptomatic improvement phase 3 trial:
                          This 600 patient, 12-month study has the goal of demonstrating improved
               2          cognition (above baseline) and health function in subjects treated with
                          Simufilam compared to placebo

                          Disease-modifying effects phase 3 trial:
                          This 1,000 patient 18-month study has the goal of demonstrating a slower
               3          rate of decline in cognition and health-function in subjects treated with
                          Simufilam compared to placebo

Source: Cassava Sciences
Note: All trials utilize the ADAS-Cog test for the primary cognition endpoint. The two phase 3 trials use the ADCS-ADL scale as the health function endpoint   24
FDA

      25
A Change in the FDA’s Stance
  There are 4 distinct approaches for making drugs available as rapidly and
  safely as possible:

                 1          Fast Track Designation:

                            Breakthrough Therapy Designation:
                 2          Eli Lilly received Breakthrough Therapy Designation on June 24th, 2021

                            Accelerated Approval:
                 3          Biogen received Accelerated Approval for Aduhelm on June 7th, 2021

                 4          Priority Review:

       The FDA now views Alzheimer’s as a fatal disease. By approving Biogen’s drug and
       granting Eli Lilly BTD, the FDA has effectively lowered the bar for new drug approval

Source: Eli Lilly, Biogen, FDA
Note:                                                                                                26
Possible Breakthrough Therapy Designation

      “the short version is yes, yes, and yes. We're very, very conscious, more than anyone
              we've been focusing on Alzheimer's 24/7 for about twelve years now”
         - Remi Barbier when asked about possible BTD in a Being Patient Interview on 3/1/21

Source: Being Patient
Note:                                                                                 27
Alzheimer’s Association International Conference
(AAIC) Preview
July 26th – 30th, 2021

                                                   28
AAIC – What’s Being Announced?

     1      9-Month open-label results        2    6-Month biomarkers                3    Phase 2 SavaDx results

    •    Reporting of interim safety &        •   Reporting biomarkers on 25         •   Investigational diagnostic
         cognition data for the first 50          patients who have completed 6          candidate to detect Alzheimer’s
         patients to complete 9 months            months of open-label drug              disease with a simple blood test.
         of open-label drug treatment             treatment                              SavaDx aims to detect the
    •    Cassava Sciences has been            •   Presenting 11 different                disease years before the onset of
         invited to present this data as an       biomarkers that fall into 3            symptoms
         oral presentation                        categories (Alzheimer’s disease,   •   Randomized, placebo-controlled
    •    Cassava Sciences gained                  neurodegeneration,                     study that was completed in
         notoriety in February 2021 when          neuroinflammation)                     2020 with 64 patients
         they reported a 1.6 ADAS-Cog         •   AD is a “disease of biomarkers”    •   The SavaDx program is funded
         11 improvement at 6 months               and are widely considered              by research grants from the
         (10% improvement). Nobody                objective measures in assessing        National Institutes of Health
         has ever shown cognition                 progress of Alzheimer’s                (NIH)
         improvement at 9 months
    •    Clean and consistent safety
         profile of Simufilam

Source: Cassava Sciences
Note:                                                                                                              29
Cognition Expectations (Internal Estimates)

                                                                               Estimated 5+ point
                                                                                improvement over
                                                                               placebo at 52 weeks

                                                                  1.6 point                     Estimated 1.5-2.5          Estimated 0.8-2.5
                                                                improvement                    point improvement         point improvement at
                                                                 a 6 months                       at 9 months                  12 months

                                                 Dashed yellow line indicates our internal estimates for 9 and 12 month results

        We expect Cassava Sciences to be the first to show improvement in cognition at 9 months,
        and we also expect cognition to stabilize or even improve from the 6-month results

Source: Cassava Sciences investor presentation
Note: Analyst expectations in the appendix                                                                                                      30
6-Month Biomarkers | SavaDx
 6-Month biomarkers                                     SavaDx
 •     Expect the 6-month biomarker data to show        •   The Phase 2b study was completed in 2020. We
       positive results across the continuum of             believe that Cassava would have already released
       biomarkers                                           results if the study outcome was negative
 •     Expect biomarkers to be similar to or an         •   Expecting more information about the use case
       improvement upon phase 2b biomarker results.         (broad Alzheimer’s testing v. Simufilam
                                                            companion diagnostic)
 •     No bias potential with biomarkers
                                                        •   The market doesn’t appear to be pricing in any
                                                            upside for SavaDx. We view this as a free option

          We believe the addition of these two data sets will serve as incremental positives to
          the 9-month cognition & safety data

Source: NIH Publication, Cassava Sciences
Note:                                                                                                31
Reason for Optimism
  Consistent & convincing science
  •     Simufilam has been consistent in showing improvements in cognition, behavior, relevant biomarkers and
        has shown to be safe at every stage of clinical testing
  •     There’s scientific basis for small molecule drugs addressing misfolded proteins having a lasting effect
  Bullish management
  •     Why would management willingly present on the biggest stage in the world for Alzheimer’s if they had
        lousy data?
  •     Remi Barbier (Founder/CEO) is struggling to contain his excitement at every public appearance
  •     Management and insiders own > 5% & have not sold despite the 1,000%+ increase in stock price YTD

  It's the consistency of data from basic research to the animal data, to the CSF biomarkers, to the early
  cognition, to the open label study. There's a consistent theme that, in my opinion, the world of Alzheimer's
  disease R&D has never seen before.
                     - Remi Barbier (CEO/Founder of Cassava Sciences in a Being Patient interview on 2/26/21)

  “I know the science, I know the data, I know the disease, and this stuff looks promising and I'm putting my
  money where my mouth is”
                     - Remi Barbier (Fortune interview published on 6/8/21)

Source: Joe Springer, Being Patient, Fortune
Note:                                                                                                           32
“I Won’t Spill the Beans”

       Why would Cassava Sciences CEO, Remi Barbier, make these sort of comments if he
       wasn’t certain of 9-month results?

Source: Millionaires Investment Secrets, B Riley Securities
Note: Remi Barbier spoke at the B Riley Securities neuroscience conference on 4/28/21    33
Valuation

            34
Valuation Overview

  Goal: Provide a holistic valuation range based on a multitude of methods

              Discounted cash flow analysis (DCF):
          1   Estimated target price ≈ $700/share

              Multiple of peak sales:
          2   Estimated target price ≈ $1,325 - $1,660/share

              Analysis of Biogen and Eli Lilly market cap moves:
          3   Estimated target price ≈ $555/share

              Multiple of Acetylcholinesterase Inhibitors sales:
          4   Estimated target price ≈ $517/share

Source:
Note:                                                                        35
Discounted Cash Flow (DCF)
 Key assumptions                                                                         Key outputs
 •    Projection period: 2021 – 2033                                                     •   Price/share: ~$699
 •    Discount rate (WACC): 15.0%                                                        •   Enterprise value: ~$29.4 billion
 •    Terminal growth rate: 1.6%                                                         •   Market cap: ~$29.6 billion
 •    Year of FDA approval: 2024 (midyear)                                               •   % of value from projection: ~59.0%
 •    Gross margin: 85% (analyst consensus)                                              •   % of value from terminal value: ~41.0%

 Price/share sensitivity analysis

                                                                                      Discount Rate
                                                  10.0%    11.0%    12.0%    13.0%   14.0%   15.0%   16.0%   17.0%   18.0%   19.0%   20.0%
                 Terrminal Growth Rate

                                         (0.8%)   $1,205   $1,050    $922    $816    $727    $650    $585    $528    $479    $436    $398
                                         (0.4%)   $1,230   $1,069    $937    $828    $735    $657    $590    $533    $483    $439    $400
                                         0.0%     $1,258   $1,090    $953    $840    $745    $665    $596    $538    $486    $442    $403
                                         0.4%     $1,288   $1,112    $970    $853    $755    $673    $603    $543    $491    $445    $406
                                         0.8%     $1,320   $1,136    $988    $866    $766    $681    $609    $548    $495    $449    $408
                                         1.2%     $1,356   $1,162   $1,007   $881    $777    $690    $616    $553    $499    $452    $411
                                         1.6%     $1,394   $1,190   $1,028   $896    $789    $699    $623    $559    $504    $456    $414
                                         2.0%     $1,437   $1,220   $1,050   $913    $802    $709    $631    $565    $509    $460    $418
                                         2.4%     $1,484   $1,254   $1,074   $931    $815    $719    $639    $572    $514    $464    $421
                                         2.8%     $1,537   $1,290   $1,101   $951    $830    $731    $648    $578    $519    $468    $424
                                         3.2%     $1,595   $1,331   $1,129   $972    $846    $743    $657    $586    $525    $473    $428

Source: Internal estimates
Note: DCF included in the appendix                                                                                                           36
Peak Sales (Internal Estimates)
 Sizing the AD market                                                                      Peak sales calculation

        ~50 million current dementia patients worldwide                                              ~51.2 million patients for Simufilam TAM

      ~65% of dementia patients have Alzheimer’s disease                                    1.4% estimated peak global penetration rate for Simufilam

           ~32.5 million current AD patients worldwide                                               ~720 thousand peak patients on Simufilam

                                                                                             $12K annual           $24K annual         $36K annual
         ~4% annual growth rate in Alzheimer’s patients
                                                                                                cost                  cost                cost

                                                                                             $8.6 billion         $17.2 billion        $25.8 billion
   ~51.2 million estimated Alzheimer’s patients by 2033
                                                                                             peak sales            peak sales           peak sales

Source: World Health Organization, Alzheimer’s Disease International, Internal estimates
Note: Most estimated penetration rates are for EU/US only while our analysis assumes a global rate                                              37
Peak Sales (Aggregated)
$ in billions
                                                      Simufilam peak sales estimates
  $28.0

  $24.0                                                                                                     $22.9

  $20.0
                                                                     $18.0

  $16.0
                                                                                                                                               $13.7

  $12.0
                                                   $9.6                                                                        $10.0
                                                                                          $7.9
   $8.0

   $4.0                         $3.0

   $0.0
                    SAVA current enterprise value         Maxim Group                            Jones Trading                     B Riley Securities
                    Cantor Fitzgerald                     Joe Springer                           Average peak sales estimate

                           Analysts expect Simufilam will generate ~$13.7 billion in peak sales

Source: Maxim Group, Jones Trading, B Riley Securities, Cantor Fitzgerald, Joe Springer
Note: Enterprise value as of 7/19/21                                                                                                                    38
Multiple of Peak Sales

           When analyzing 10 of the largest M&A deals for pre-revenue biotech, we found that
           on average big pharma pays ~4.1x estimated peak sales

           Internal peak sales
                estimate
           $17.2 billion
                                              Peak sales multiple                   Enterprise value range                         Midpoint share price range
                                                      4.1x                        ~$56 - $70 billion                             ~$1,325 - $1,660/share
         Average sell-side peak
            sales estimate
           $13.7 billion

           Valuation ranges from ~$420/share at the low end to ~$3,245 at the high end1

Source: World Health Organization, Alzheimer’s Disease International, Internal estimates
Note: Estimated ~$282 million in net cash and ~42.4 million fully diluted shares to get to target price. Breakdown in appendix                              39
1 Low-end assumes lowest peak sales and peak sales multiple. Vice versa for high-end. See appendix for details
Biogen and Eli Lilly Market Cap Moves
 Biogen material AD events                                                               Eli Lilly material AD events
  $430                                                                                   $240.00
                                                                                                              1/11/21
                                                                                                   Topline results from phase 2
  $410                  11/4/20                                                          $230.00   trial of donanemab released.
            The FDA implies favorable ruling                   6/7/21 - 6/10/21                    Market cap increases by $17.7              6/7/21-6/10/21
  $390       and analysts upgrade the stock.                     FDA approved                                  billion                         FDA approved
                                                                                         $220.00
              Market cap increases by $16.7                 aducanumab. Market cap                                                          aducanumab (Biogen).
  $370                    billion                           increases by $19.3 billion                                                       Market cap increases
                                                                                         $210.00                                               by $28.6 billion
  $350
                                                                                         $200.00
  $330                            11/9/20
                      FDA advisory committee votes
                     against approval for aducanumab.                                    $190.00
  $310
                    Market cap decreases by $18.4 billion
                      (peak to trough from 11/4/20)                                      $180.00
  $290
                                                                                                                                                              6/24/21
                                                                                         $170.00                   3/15/21                            FDA gives donanemab
  $270                                                                                                 Full results for phase 2 trial of              Breakthrough Therapy
                                                                                                   donanemab released with mixed results.            Designation (BTD). Market
  $250                                                                                   $160.00    Market cap decreases by $17.2 billion              cap increases by $14.4
                                                                                                                                                               billion
  $230                                                                                   $150.00

                                         BIIB Share Price                                                                    LLY Share Price

          On average, the market cap moved ~$19 billion on Alzheimer’s news. A $19 billion
          move from today’s price would value Cassava Sciences at ~$555/share

Source: Cap IQ
Note: Pricing as of 7/19/21                                                                                                                                            40
Acetylcholinesterase Inhibitors Multiple

         Why: Acetylcholinesterase Inhibitors, such as Aricept, are the only
         current treatment option for Alzheimer’s patients. However, they only
         provide symptomatic improvement for ~6 months

         2019 Acetylcholinesterase
                                                      Peak sales multiple                  Implied enterprise value                        Implied share price
             Inhibitors sales1
               ~$5 billion                                   4.1x                            ~$20.4 billion                                ~$517/share

           This may be a floor valuation for Cassava Sciences. Simufilam has already shown
           comparable cognition improvements at 6 months with no side effects. Maxim Group
           highlighted how Simufilam could replace Acetylcholinesterase Inhibitors as the
           standard of care

Source: Internal estimates, Symphony Health, Maxim Group
Note: Estimated ~$282 million in net cash and ~40.0 million current shares outstanding to get to implied share price. See Appendix for details                   41
1 Per Symphony Health
Three Multi-Billion Dollar “Call Options”

              Other Central Nervous Systems (CNS) applications
          1   Possible use in diseases such as Parkinson’s, ALS, Rett’s syndrome,
              Huntington’s disease and even oncology

              Prophylactic use
          2   Potential for Simufilam to be taken preventatively to eliminate or severely
              delay the onset of symptoms associated with Alzheimer’s

              SavaDx
          3   A blood-based diagnostic test that could massively increase the total
              addressable market (TAM) for Simufilam with earlier Alzheimer’s diagnosis

Source:
Note:                                                                                       42
Other CNS Applications

  Multiple billion-dollar opportunities besides Alzheimer’s
    • CNS = central nervous system
    • There is evidence that restoring misfolded proteins could apply to other CNS diseases
    • We estimate there are 15-20 million current dementia cases that aren’t Alzheimer’s
    • Vascular dementia & Lewy Body dementia combined will likely be a $25 billion+ market
    • Parkinson’s is expected to be an ~$11.5 billion market by 2029
    • Other potential use cases such as Rett’s syndrome, Huntington’s disease, ALS and more
    • Protein misfolding also appears to be a cause of cancer leading to possible exploration
      into oncology
    • Cassava Sciences is focusing on Alzheimer’s first before treating other diseases

Source: Nature, NCBI, Alzheimer’s Association, Polaris Market Research, PubMed.gov, Global Data, NCBI
Note:                                                                                                   43
Prophylactic Use

  The ultimate upside case where all previous valuations are irrelevant
    • Amyloid plaques begin forming up to 20 years before AD symptoms appear
    • Prevention is the key to solving Alzheimer’s
    • Simufilam might be used preventatively due to the following:
        • Excellent safety profile
        • Oral tablet
        • Upstream of amyloid plaque
        • SavaDx allowing for early diagnosis
    • Estimated 250-million person TAM by 2050 that would be a $100 billion+ annual
      opportunity even with a 96%-98% discount in pricing

        2 Billion                                       50%                      25%                 ~250 Million
    Estimated Number of                        Assumption of Those       % of Americans Aged 45+     Estimated Market Size for
   People Worldwide Ages                      Worldwide With Access to   Using a Statin (Model for   Preventative Alzheimer’s
   60+ by 2050 (per WHO)                        Healthcare in 2050             Whole World)                Disease Drug

Source: World Health Organization, Harvard Health, United Nations
Note:                                                                                                                44
SavaDx

A possible companion to Simufilam or a significant value driver in its own right
    • SavaDx detected >10-fold differences between patients with and without Alzheimer’s in
      blinded studies
    • Could massively increase the TAM for Simufilam by allowing for earlier diagnosis and a
      longer resulting treatment period
    • Current Alzheimer’s diagnosis tools leave much to be desired through their cost,
      inaccuracy or invasive nature
    • Cassava will be presenting phase 2b results at AAIC
    • SavaDx alone could be worth billions if widely used as an Alzheimer’s diagnosis tool

Source: Cassava Sciences, Company press releases
Note:                                                                                        45
Conclusion

             46
Conclusion
  Why are we so confident in the 9 and 12-month results?
    • Simufilam is the first in a new class of drug candidates that target altered Filamin A, a
      proteopathy in Alzheimer’s disease
    • Small molecules targeting misfolded proteins have been shown to have a lasting persistent
      impact
    • Scientific belief that Simufilam’s mechanism of action could be enduring for years
    • Consistently stellar safety profile
    • Simufilam targets both neuroinflammation and neurodegeneration
    • 6-month and 12-month biomarker data will confirm what the cognition and behavioral
      results have shown
    • Bullish (yet credible) CEO who has clearly telegraphed consistent and positive upcoming
      data

Source:
Note:                                                                                         47
Conclusion (Cont..)
  Next steps
    • Positive 9-month cognition & safety data coupled with 6-month biomarkers and the
      upcoming 12-month data will validate Simufilam as a disease-modifying drug
    • Two phase 3 trials will begin this year and the company has sufficient cash to pay for both
      studies
    • Results from the cognition maintenance study (CMS) should come in early 2022
    • Material share price appreciation due to groundbreaking data results along with eventual
      Breakthrough Therapy Designation (BTD)

Source:
Note:                                                                                       48
Appendix

           49
Simufilam Mechanism of Action

Source: Cassava Sciences
Note:                           50
Phase 2b Patient Responder Analysis

Source: Cassava Sciences
Note:                                 51
Phase 2b Total tau/Aβ42 Decreased

Source: Cassava Sciences
Note:                               52
Phase 2b - P-tau/Aβ42 Decreased

Source: Cassava Sciences
Note:                             53
Cognition Maintenance Study Design

Source: Cassava Sciences
Note:                                54
Phase 3 Study Overview

Source: Cassava Sciences
Note:                      55
Cognition Expectations (B Riley)
                                              B Riley Securities 9-Month Readout Scenarios
  2.0                                                                                                                                                         60.00%

  1.5                                                        1.0 - 2.0
                                                                                                                                                              40.00%
  1.0
                                                                                                                                                              20.00%
  0.5                                                                                               0.0 -1.0

  0.0                                                                                                                                                         0.00%

 -0.5                                                                                                                                (1.0) - 0.0
                                                                                                                                                              -20.00%
 -1.0
                                                                                                                                                              -40.00%
 -1.5

 -2.0                                                                                                                                                         -60.00%
                  6-Month Results               Comparable Levels of Cognition       Maintain Cognition Above Baseline Cognition Falls Below Baseline (15%
                                                Improvement (20% Probability)                (65% Probability)                     Probability)
                                           ADAS-Cog 11 improvement from baseline                      Implied Stock Reaction (% Change)

                                                                               ADAS-Cog 11
                                                                                                                             Implied Stock Reaction
                  Scenario                                                  Improvement Range                  Probability
                                                                                                                                  (% Change)
                                                                              (From Baseline)
                  6-Month Results                                                     1.6                          -                    -
                  Comparable Levels of Cognition Improvement                       1.0 - 2.0                      20%                50-60%
                  Maintain Cognition Above Baseline                                0.0 - 1.0                      65%                15-25%
                  Cognition Falls Below Baseline                                  (1.0) - 0.0                     15%              (40)-(50)%

Source: B Riley Securities
Note: 6-month results have already been reported by Cassava in February 2021 thus no probability or reaction given                                       56
Cognition Expectations (Jones Trading)
                                                 Jones Trading 9-Month Readout Scenarios
    2.0                                                                                                                                                             80.00%
                                                    1.6+
    1.5                                                                                                                                                             60.00%
                                                                                 0.8 - 1.6
    1.0                                                                                                                                                             40.00%

    0.5                                                                                                                                                             20.00%

    0.0                                                                                                              0.0                                            0.00%

   -0.5                                                                                                                                                             -20.00%

   -1.0                                                                                                                                   (1.0) - (0.8)             -40.00%

   -1.5                                                                                                                                                             -60.00%

   -2.0                                                                                                                                                             -80.00%
                6-Month Results          Improved from 6-Month           Improved from baseline       In-line with baseline (20%   Decline from baseline (5%
                                         Readout (15% Probability)         (60% Probability)                  Probability)                Probability)

                                           ADAS-Cog 11 improvement from baseline                      Implied Stock Reaction (% Change)

                                                                               ADAS-Cog 11
                                                                                                                             Implied Stock Reaction
                  Scenario                                                  Improvement Range               Probability
                                                                                                                                  (% Change)
                                                                              (From Baseline)
                  6-Month Results                                                     1.6                        -                       -
                  Improved from 6-Month Readout                                       1.6+                      15%                    40%
                  Improved from Baseline                                           0.8 - 1.6                    60%                    20%
                  In-line with Baseline                                               0.0                       20%                    -15%
                  Decline from Baseline                                          (1.0) - (0.8)                  5%                     -70%

Source: Jones Trading
Note: 6-month results have already been reported by Cassava in February 2021 thus no probability or reaction given                                             57
DCF Output
($ in Millions)
                               2021E    2022E    2023E     2024E    2025E     2026E      2027E     2028E     2029E     2030E      2031E      2032E   2033E
Revenue                           $0       $0       $0    $1,223   $5,083    $9,238    $10,965   $12,243   $13,455   $14,435    $15,471    $16,400 $17,205
Revenue Growth                                                       315%       82%        19%       12%       10%        7%         7%         6%      5%
Cost of Goods Sold                 0       0        0        184      762     1,386      1,645     1,836     2,018     2,165      2,321      2,460   2,581
Gross Profit                      $0      $0       $0     $1,040   $4,320    $7,852     $9,321   $10,407   $11,437   $12,270    $13,150    $13,940 $14,624
Gross Margin                                               85.0%    85.0%     85.0%      85.0%     85.0%     85.0%     85.0%      85.0%      85.0%   85.0%
R&D Expense                     ($29)   ($103)    ($84)    ($79)     ($81)     ($83)     ($84)     ($86)     ($88)      ($89)      ($91)      ($93)   ($95)
SG&A Expense                     (10)     (15)     (23)    (489)     (915)   (1,386)   (1,645)   (1,836)   (2,018)    (2,165)    (2,321)    (2,460) (2,581)
Operating Income                ($39)   ($118)   ($107)    $471    $3,324    $6,384    $7,592    $8,484    $9,331    $10,015    $10,739    $11,387 $11,949
Taxes @ 20%                                                 (94)     (665)   (1,277)   (1,518)   (1,697)   (1,866)    (2,003)    (2,148)    (2,277) (2,390)
After-Tax Operating Income      ($39)   ($118)   ($107)    $377    $2,660    $5,107    $6,073    $6,787    $7,465     $8,012     $8,591     $9,109    $9,559
(+) D&A                                                      15        31        79        87        97       102        114        124        134       142
(-) CapEx                                                   (61)     (127)      (92)     (110)     (122)     (135)      (144)      (155)      (164)     (172)
(+/-) Change in NWC                                         (73)     (254)     (370)     (329)     (306)     (336)      (361)      (387)      (410)     (430)
Unlevered FCF                   ($39)   ($118)   ($107)    $258    $2,309    $4,724    $5,722    $6,456    $7,096     $7,621     $8,174     $8,669    $9,099

Time Factor                       0.5      1.5      2.5      3.5       4.5       5.5       6.5       7.5       8.5        9.5       10.5       11.5      12.5
Present Value                   ($37)    ($96)    ($75)    $158    $1,231    $2,190    $2,307    $2,263    $2,163     $2,020     $1,884     $1,738    $1,586
Terminal Value               $12,024
Enterprise Value             $29,357
Add: Net Cash                    282
Market Cap                   $29,639
Divide By: Diluted Shares         42
Price/Share                   $699.0

              Assumptions
Discount Rate                  15.0%
Terminal Growth Rate            1.6%

Source: Internal estimates
Note:                                                                                                                                           58
Internal Peak Sales

                                                                          Market Sizing
                                          Item                                                            Value
                                          Current Dementia Patients Worldwide                              50.0 million
                                          % of Dementia Patients with Alzheimer's Disease                        65%
                                          Current AD Patients Worldwide                                    32.5 million
                                          Expected Annual Growth Rate in Patients                                  4%
                                          Estimated Peak Sales Year                                              2033
                                          Estimated AD Patients by Peak Year                              51.2 million

                                                                  Peak Sales Calculation
                       Item                                                                Low End         Midpoint      High End
                       Global AD Patients                                                    51.2 million 51.2 million 51.2 million
                       Peak Global Penetration of Simufilam                                        1.4%          1.4%          1.4%
                       Peak Patients on Simufilam                                            0.72 million 0.72 million 0.72 million
                       Monthly Cost                                                              $1,000        $2,000        $3,000
                       Simifulam Cost Per Year                                                  $12,000       $24,000       $36,000
                       Peak Simifulam Sales                                                  $8.6 billion $17.2 billion $25.8 billion

Source: World Health Organization, Alzheimer’s Disease International, Internal estimates
Note:                                                                                                                                   59
Peak Sales Valuation

             Analyst Peak Sales Estimate Valuation                                         Internal Peak Sales Estimate Valuation
   Item                                                                Value           Item                                     Value
   Peak Sales                                                          $13.7 billion   Peak Sales                               $17.2 billion
   (X) M&A Peak Sales Multiple                                                 4.1x    (X) M&A Peak Sales Multiple                      4.1x
   Implied Cassava Sciences EV                                        $55.8 billion    Implied Cassava Sciences EV             $70.2 billion
   (+) Net Cash                                                   $281.9 million       (+) Net Cash                           $281.9 million
   Implied Cassava Sciences Market Cap                             $56.1 billion       Implied Cassava Sciences Market Cap     $70.5 billion
   (/) Fully Diluted Shares                                         42.4 million       (/) Fully Diluted Shares                 42.4 million
   Implied Cassava Sciences Stock Price                                 $1,324         Implied Cassava Sciences Stock Price         $1,662

            Low End Peak Sales Estimate Valuation                                           High End Peak Sales Estimate Valuation
   Item                                                                Value           Item                                     Value
   Peak Sales                                                           $7.9 billion   Peak Sales                               $22.9 billion
   (X) M&A Peak Sales Multiple                                                 2.2x    (X) M&A Peak Sales Multiple                      6.0x
   Implied Cassava Sciences EV                                        $17.5 billion    Implied Cassava Sciences EV            $137.3 billion
   (+) Net Cash                                                   $281.9 million       (+) Net Cash                           $281.9 million
   Implied Cassava Sciences Market Cap                             $17.8 billion       Implied Cassava Sciences Market Cap    $137.6 billion
   (/) Fully Diluted Shares                                         42.4 million       (/) Fully Diluted Shares                 42.4 million
   Implied Cassava Sciences Stock Price                                   $419         Implied Cassava Sciences Stock Price         $3,246

Source: Company filings, Company press releases, Internal estimates
Note:                                                                                                                               60
M&A Peak Sales Multiples
                                               M&A in Biotech Peak Sales Multiple Analysis
                                                                              Reported Deal                            Peak Sales
Announcement Date            Target                   Acquirer                                    Main Market                     Multiple         Adjustment to Peak Sales (If relevant)
                                                                                Value ($)                               Estimate
                                                                                              Triple-Negative Breast
13-Sep-2020                  Immunomedics, Inc. Gilead Sciences, Inc.             $21,000.0                              4,700      4.5x                               -
                                                                                              Cancer
                                                      Bristol Myers Squibb
05-Oct-2020                  MyoKardia, Inc.                                      $13,100.0 Cardiovasular diseases       3,000      4.4x                               -
                                                      Co.
28-Aug-2017                  Kite Pharma, Inc.        Gilead Sciences, Inc.       $11,900.0 T-Cell Therapy               2,000      6.0x                               -
                                                                                            Cholesterol Lowering
24-Nov-2019                  The Medicines Co.        Novartis AG                  $9,700.0                              3,400      2.9x     15% sales haircut to account for royalty payments
                                                                                            Therapy
                             Juno Therapeutics,                                                                                              10% sales haircut to account for pre-existing
22-Jan-2018                                           Celgene Corp.                $9,000.0 T-Cell Therapy               2,700      3.3x
                             Inc.                                                                                                            Celgene Royalty
                                                                                            Gene replacement
                                                      Novartis                              therapy for spinal
09-Apr-2018                  AveXis, Inc.                                          $8,700.0                              2,000      4.4x                               -
                                                      International AG                      muscular atrophy
                                                                                            (SMA)
                                                                                            TRK Inhibitor / RET
                                                                                                                                             $375 million peak sales for Vitrakvi ($750 million
07-Jan-2019                  Loxo Oncology, Inc.      Eli Lilly & Co.              $8,000.0 Inhibitor / BTK              1,375      5.8x
                                                                                                                                             peak but 50% share with Bayer)
                                                                                            Inhibitor

                             Momenta                                                          Immune-mediated                                $500 million reduction for partnership with CSL for
19-Aug-2020                                        Johnson & Johnson               $6,500.0                              3,000      2.2x
                             Pharmaceuticals, Inc.                                            disorders                                      M230 (Likely conservative)

                             ARIAD                 Takeda                                   Hematologic and solid
09-Jan-2017                                                                        $5,200.0                              2,000      2.6x                               -
                             Pharmaceuticals, Inc. Pharmaceutical Co.,                      tumor oncology
                                                                                            Myelodysplastic
02-Mar-2020                  Forty Seven, Inc.        Gilead Sciences, Inc.        $4,900.0 Syndrome, Acute              1,000      4.9x                               -
                                                                                            Myeloid Leukemia

Average Multiple Paid                          4.1x

 Source: Company filings, company press releases, industry articles
 Note:                                                                                                                                                                           61
Acetylcholinesterase Inhibitors Multiple

                            Acetylcholinesterase Inhibitors Valuation Rule of Thumb
                          ($ in millions)
                          Item                                           Value
                          2019 Acetylcholinesterase Inhibitor Sales           $5,000
                          (X) Peak Sales Multiple from M&A                       4.1x
                          Implied Cassava Sciences Enterprise Value          $20,403
                          (+) Net Cash                                          $282
                          Implied Cassava Sciences Market Cap                $20,685
                          (/) Current Shares Outstanding                          40
                          Implied Cassava Sciences Stock Price                  $517

Source: Internal estimates, Symphony Health
Note:                                                                                   62
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