The following discussion and analysis of our financial condition and results of
operations should be read in conjunction with our consolidated financial
statements and the related notes to those statements included elsewhere in this
Annual Report on Form 10-K. In addition to historical financial information, the
following discussion and analysis contains forward-looking statements that
involve risks, uncertainties and assumptions. Some of the numbers included
herein have been rounded for the convenience of presentation. Our actual results
may differ materially from those anticipated in these forward-looking statements
as a result of many factors, including those discussed under Item 1A, Risk
factors, in this Annual Report on Form 10-K.

Overview


We are a clinical-stage biopharmaceutical company engaged in the discovery and
development of innovative, small molecule therapeutics targeting age-related
degenerative diseases and disorders of the central nervous system, or CNS, and
retina. Currently available therapies for these diseases are limited, with many
diseases having no approved therapies or treatments. Our goal is to develop
disease modifying treatments for patients with these degenerative disorders by
initially leveraging our expertise in the ?-2 (sigma-2) receptor, or S2R, which
is expressed by multiple cell types, including neuronal synapses, and acts as a
key regulator of cellular damage commonly associated with certain age-related
degenerative diseases of the CNS and retina. We believe that targeting the S2R
complex represents a mechanism that is functionally distinct from other current
approaches in clinical development for the treatment of degenerative diseases.

Since our inception in 2007, we have incurred significant operating losses and
devoted substantially all of our time and resources to developing our lead
product candidate, CT1812, building our intellectual property portfolio, raising
capital and recruiting management and technical staff to support these
operations. As of December 31, 2022, we had an accumulated deficit of $115.4
million. We incurred net losses of $21.4 million and $11.7 million for the years
ended December 31, 2022 and 2021, respectively.

To date, we have funded our operations primarily with proceeds from grants
awarded by the National Institute of Aging, or NIA, a division of the National
Institutes of Health, or NIH, and proceeds from our initial public offering, or
IPO, completed in October 2021, proceeds from our follow-on public offering in
November 2022, and the sales of our convertible promissory notes, convertible
preferred stock, simple agreements for future equity, or SAFE, and stock option
exercises. Since our inception, we have received approximately $171.0 million in
cumulative grant awards to fund our clinical trials, primarily from the NIA, and
we have raised approximately $108.8 million in net proceeds from sales of our
equity securities, convertible notes, SAFE, stock option exercises, our IPO and
follow-on public offering. As of December 31, 2022, we had cash and cash
equivalents of $41.6 million.

On October 13, 2021, we completed our IPO, pursuant to which we issued and sold
3,768,116 shares of our common stock at a public offering price of $12.00 per
share. Additionally, on November 12, 2021, the underwriters exercise of their
over-allotment option in full to purchase 565,217 shares of our common stock
closed. In connection with the IPO, we received net proceeds of approximately
$44.2 million, after deducting underwriting discounts and commissions and other
offering related expenses payable by us, which includes net proceeds of
approximately $6.3 million from the exercise of the over-allotment option.

On November 15, 2022, we completed our follow-on public offering, pursuant to which we issued and sold 5,000,000 shares of our common stock at a public offering price of $1.20 per share. In connection with the follow-on public offering, we received net proceeds of approximately $5.2 million, after deducting underwriting discounts and commissions and other offering related expenses.



On December 23, 2022, we entered into a sales agreement with Cantor Fitzgerald &
Co. and B. Riley Securities, Inc., or the Sales Agents, providing for the
offering, issuance and sale by us of up to $40 million of our common stock from
time to time in "at-the-market" offerings (the "ATM"). For the year ended
December 31, 2022, we have not sold any shares of common stock under the ATM.

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We expect to continue to incur significant and increasing expenses and net
losses for the foreseeable future, as we advance our current and future product
candidates through preclinical and clinical development, manufacture drug
product and drug supply, seek regulatory approval for our current and future
product candidates, maintain and expand our intellectual property portfolio,
hire additional research and development and business personnel and operate as a
public company. We will not generate revenue from product sales unless and until
we successfully complete clinical development and obtain regulatory approval for
our product candidates. In addition, if we obtain regulatory approval for our
product candidates and do not enter into a third-party commercialization
partnership, we expect to incur significant expenses related to developing our
commercialization capability to support product sales, marketing, manufacturing
and distribution activities.

As a result, we will need substantial additional funding to support our
continuing operations and pursue our growth strategy. Until we can generate
significant revenue from product sales, if ever, we expect to finance our
operations through a combination of public or private equity offerings, debt
financings or other sources, such as potential collaboration agreements and
strategic alliances, licensing or similar arrangements with third parties. To
the extent available, we expect to continue our pursuit of non-dilutive research
contributions, or grants, including additional NIA grant funding. However, we
may fail to receive additional NIA grants, or we may be unable to raise
additional funds or enter into such other agreements or arrangements when needed
on acceptable terms, or at all. Our failure to obtain additional NIA grants or
raise capital or enter into such agreements as and when needed could have a
material adverse effect on our business, results of operations and financial
condition.

Because of the numerous risks and uncertainties associated with product
development, we are unable to accurately predict the timing or amount of
increased expenses or when, or if, we will be able to achieve profitability.
Even if we do achieve profitability, we may not be able to sustain or increase
profitability on a quarterly or annual basis. If we fail to become profitable or
are unable to sustain profitability on a continuing basis, then we may be unable
to raise capital, maintain our research and development efforts, expand our
business or continue our operations at planned levels, and as a result we may be
forced to substantially reduce or terminate our operations.

We do not own or operate manufacturing facilities. We rely, and expect to
continue to rely, on third parties for the manufacture of CT1812 for preclinical
studies and clinical trials, as well as for commercial manufacture if CT1812
obtains marketing approval. We also rely, and expect to continue to rely, on
third parties to manufacture, package, label, store, and distribute CT1812, if
marketing approval is obtained. We believe that this strategy allows us to
maintain a more efficient infrastructure by eliminating the need for us to
invest in our own manufacturing facilities, equipment, and personnel while also
enabling us to focus our expertise and resources on the development of CT1812.

Impact of COVID-19 on Our Business



Our business has been and could continue to be adversely affected by the effects
of the ongoing COVID-19 pandemic, including, but not limited to, our clinical
trials. For example, our ongoing and/or planned clinical trials may be impacted
by interruptions or delays in the operations of the FDA and comparable foreign
regulatory authorities. Additionally, we have made certain adjustments to the
operation of our trials in an effort to ensure the monitoring and safety of
patients and minimize risks to trial integrity during the pandemic in accordance
with the guidance issued by the FDA and may need to make further adjustments in
the future. We have also initiated our clinical trial protocols to enable remote
visits to mitigate any potential impacts as a result of the COVID-19 pandemic.
Many of these adjustments are new and untested, may not be effective, may affect
the integrity of data collected, and may have unforeseen effects on the progress
and completion of our clinical trials and the findings from such clinical
trials.

The spread of COVID-19, including the spread of new strains and variants of
COVID-19, and actions taken to reduce such spread may also materially affect us
economically. While the potential further economic impact brought by, and the
duration of, the COVID 19 pandemic may be difficult to assess or predict, there
could be a significant disruption of global financial markets, reducing our
ability to access capital, which could in the future negatively affect our
liquidity and financial position. As a result, we may face difficulties raising
capital through future sales of our common stock or such sales may be on
unfavorable terms.

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Components of Our Results of Operations

Operating Expenses

Research and Development Expenses


Research and development expenses consist primarily of direct and indirect costs
incurred for our research activities, including development of our drug
discovery efforts and the development of our product candidates. Direct costs
include laboratory materials and supplies, contracted research and
manufacturing, clinical trial costs, consulting fees, and other expenses
incurred to sustain our research and development program. Indirect costs include
personnel-related expenses, consisting of employee salaries, related benefits,
and stock-based compensation expense for employees engaged in research and
development activities, facilities, and other expenses consisting of direct and
allocated expenses for rent and depreciation, and lab consumables.

We expense research and development costs as incurred. Non-refundable advance
payments for goods and services that will be used over time for research and
development are capitalized and recognized as goods are delivered or as the
related services are performed. In-licensing fees and other costs to acquire
technologies used in research and development that have not yet received
regulatory approval and that are not expected to have an alternative future use
are expensed when incurred. We track direct costs by stage of program, clinical
or preclinical. However, we do not track indirect costs on a program specific
basis because these costs are deployed across multiple programs and, as such,
are not separately classified.

We cannot reasonably determine the nature, timing, and estimated costs of the
efforts that will be necessary to complete the development of, and obtain
regulatory approval for, any of our product candidates. Product candidates in
later stages of development generally have higher development costs than those
in earlier stages. We expect that our research and development expenses will
increase substantially for the foreseeable future as we continue to invest in
research and development activities related to developing our product
candidates, as our product candidates advance into later stages of development,
as we begin to conduct larger clinical trials, as we seek regulatory approvals
for any product candidates that successfully complete clinical trials, as we
expand our product pipeline, as we maintain, expand, protect and enforce our
intellectual property portfolio, and as we incur expenses associated with hiring
additional personnel to support our research and development efforts.

General and Administrative Expenses


General and administrative expenses consist primarily of personnel-related
costs, including employee salaries, related benefits, and stock-based
compensation expense for our employees in the executive, finance and accounting,
and other administrative functions. General and administrative expenses also
include third-party costs such as legal costs, insurance costs, accounting,
auditing and tax related fees, consulting fees and facilities and other expenses
not otherwise included as research and development expenses. We expense general
and administrative costs as incurred.

We expect that our general and administrative expenses will increase for the
foreseeable future as we increase our headcount to support our continued
research activities and development of our programs. Following the completion of
our IPO on October 13, 2021, we have incurred, and will continue to incur,
substantially increased expenses as a result of operating as a public company,
including expenses related to compliance with the rules and regulations of the
SEC, and those of any national securities exchange on which our securities are
traded, legal, auditing, additional insurance expenses, investor relations
activities, and other administrative and professional services.

Other Income (Expense)

Grant Income



Grant income relates to the grants awarded from governmental bodies that are
conditional cost reimbursement grants and are recognized as grant income as
allowable costs are incurred and the right to payment is realized. The grants
awarded relate to agreed upon direct and indirect costs for specific studies or
clinical trials, which may include personnel

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and consulting costs, costs paid to contract research organizations, research
institutions and /or consortiums involved in the grant, as well as facilities
and administrative costs. These grants are cost plus fixed fee arrangements in
which we are reimbursed for eligible direct and indirect costs over time, up to
the maximum amount of each specific grant award. Only costs that are allowable
under the grant award, certain government regulations and the NIH's supplemental
policy and procedure manual may be claimed for reimbursement, and the
reimbursements are subject to routine audits from governmental agencies from
time to time. As of December 31, 2022, the Company has been awarded grants with
project periods that extend through May 31, 2026, subject to extension. Our
clinical trials have been funded by approximately $171.0 million in cumulative
grants awarded primarily by the NIA, which includes an approximately $81.0
million grant from the NIA to fund our Phase 2 (COG0203) study of CT1812 in
patients with early-stage AD, an approximately $30.5 million grant from the NIA
to fund our Phase 2 (COG0201) study of CT1812 in patients with mild to moderate
AD, and an approximately $29.5 million grant from the NIA to fund our Phase 2
(COG1201) study of CT1812 in patients with dementia with Lewy bodies.

Change in fair value of derivative liability


Change in fair value of our derivative liability consists of changes in the fair
value of certain conversion and redemption features associated with our
convertible notes that are required to be bifurcated and accounted for as
free-standing derivative financial instruments. The derivative liability expired
unexercised upon the conversion of the convertible notes into Series B-1
convertible preferred stock in May 2021.

Change in fair value of SAFE



Change in fair value of our SAFE consists of fair value adjustments to these
instruments based primarily on the changes in the probability of occurrence and
estimated timing of future event inputs in the valuation model. Upon the
occurrence of our IPO on October 7, 2021, the SAFE was converted into 931,485
shares of our common stock.

Gain on Debt Extinguishment

Gain on debt extinguishment for the year ended December 31, 2021 was the result
of the forgiveness of the Paycheck Protection Program loan on January 21, 2021.
There was no gain or loss on debt extinguishment for the year ended December 31,
2022.

Interest expense

Interest expense for the year ended December 31, 2022 consisted of interest
expense related to the insurance premium financing arrangement with a lender.
Interest expense for the year ended December 31, 2021 primarily consisted of
interest expense from our convertible notes.

Other income (expense), net


Other income (expense), net consists primarily of research and development tax
credits earned in the applicable period, as well as foreign currency transaction
gains or losses, and interest income from interest-bearing cash equivalents.

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Results of Operations

Comparison of the Years Ended December 31, 2022 and 2021

The following table summarizes our results of operations (in thousands):



                                                          Year Ended December 31,
(in thousands)                                              2022             2021         Change
Consolidated Statements of Operations Data:
Operating Expenses:
Research and development                                $      30,324     $   18,572    $   11,752
General and administrative                                     13,227         10,026         3,201
Total operating expenses                                       43,551         28,598        14,953
Loss from operations                                         (43,551)       (28,598)      (14,953)
Other income (expense):
Grant income                                                   22,217         17,447         4,770

Change in the fair value of the derivative liability                -          2,209       (2,209)
Change in the fair value of SAFE                                    -      

 (2,236)         2,236
Other income (expense), net                                      (35)           (88)            53
Gain on debt extinguishment                                         -            443         (443)
Interest expense                                                 (28)          (893)           865
Total other income, net                                        22,154         16,882         5,272
Net Loss                                                $    (21,397)     $ (11,716)    $  (9,681)

Research and Development Expenses



The following table summarizes our research and development expenses (in
thousands):

                                Year Ended December 31,
                                  2022             2021         Change
Clinical programs             $     15,782     $      4,679    $  11,103
Personnel                            7,481            4,882        2,599
Manufacturing                        4,661            7,465      (2,804)
Preclinical programs                 2,178            1,426          752
Facilities and other costs             222              120          102
                              $     30,324     $     18,572    $  11,752


Research and development expenses were $30.3 million for the year ended December
31, 2022, compared to $18.6 million for the year ended December 31, 2021. The
increase of $11.7 million was primarily due to the following:

an increase of $11.1 million in clinical programs related to increased Phase 2

? trial activity primarily due to increased contract research organization spend;

and

? an increase of $2.6 million in personnel costs associated with expanded

research and development activities; and

a decrease of $2.8 million in manufacturing expense related to costs incurred

with contract manufacturing organizations for production of pre-clinical and

? future clinical trial materials associated with our most advanced product

candidates due to the timing of the manufacturing of the pre-clinical and

clinical trial materials; and

? an increase of $0.9 million in preclinical programs, facilities and other costs


   primarily due to increased sponsored research spend under grants.


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General and Administrative Expenses

General and administrative expenses were $13.2 million for the year ended December 31, 2022, compared to $10.0 million for the year ended December 31, 2021. The increase of $3.2 million was primarily due to:

? an increase of $1.1 million in Director & Officer liability insurance and other

expenses; and

? an increase of $0.8 million in compensation and employee benefits driven by

increased headcount; and

? an increase of $2.6 million in professional fees driven by increased audit,

tax, and legal services; and

? a decrease of $1.3 million in equity-based compensation from stock option


   grants.


Other Income (Expense)

Grant Income

Grant income was $22.2 million for the year ended December 31, 2022, compared to
$17.4 million for the year ended December 31, 2022. The change in grant income
is correlated with the increase in eligible reimbursable costs incurred during
2022 as compared to 2021.

Change in Fair Value of the Derivative Liability



Changes in the fair value derivative liability resulted in a gain of $2.2
million for the year ended December 31, 2021. There was no gain or loss for the
year ended December 31, 2022 as the derecognition of the derivative liability
occurred in May 2021 upon the conversion of convertible notes into shares of
Series B-1 convertible preferred stock.

Change in Fair Value of the SAFE



Changes in the fair value of the SAFE resulted in a loss of $2.2 million for the
year ended December 31, 2021. There was no gain or loss for the year ended
December 31, 2022 as the derecognition of the SAFE liability occurred when the
SAFE converted into shares of our common stock upon the closing of our IPO.

Other Income (Expense), Net



Other income, net was less than $0.1 million for the year ended December 31,
2022, compared to other expense, net of less than $0.1 million for the year
ended December 31, 2021. Overall, management believes that the change in other
expense was not significant in either period.

Gain on Debt Extinguishment



Gain on debt extinguishment was $0.4 million for the year ended December 31,
2021 as a result of the forgiveness of the Paycheck Protection Program loan on
January 21, 2021. There was no gain or loss on debt extinguishment for the

year
ended December 31, 2022.

Interest Expense

Interest expense was less than $0.1 million for the year ended December 31,
2022, compared to interest expense of $0.9 million for the year ended December
31, 2021. The change of $0.9 million in interest expense was the result of the
convertible notes outstanding balance during the year ended December 31, 2021,
which were subsequently converted into shares of our Series B-1 convertible

preferred stock in May 2021.

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Liquidity and Capital Resources

Sources of Liquidity


To date, we have funded our operations primarily with proceeds from grants
awarded by the NIA, and proceeds from the sales of our convertible promissory
notes, convertible preferred stock, SAFE, stock option exercises, our IPO and
our follow-on public offering. Since our inception, we have received grant
awards primarily from the NIA in the aggregate amount of approximately $171.0
million and have raised approximately $108.8 million in net proceeds from sales
of our equity securities, convertible notes and SAFE, stock option exercises,
our IPO and our follow-on public offering. On March 25, 2021, we completed a
SAFE offering with various investors, pursuant to which we received gross
proceeds in an aggregate amount equal to $8.9 million. On October 13, 2021, we
closed our IPO, selling 3,768,116 shares of our common stock at a public
offering price of $12.00 per share. Additionally, on November 12, 2021, the
underwriters exercise of their over-allotment option to purchase 565,217 shares
of our common stock closed. The net proceeds were approximately $44.2 million,
after deducting underwriting discounts and commissions and other offering
related expenses payable by us, which includes net proceeds of approximately
$6.3 million from the exercise of the over-allotment option. On November 15,
2022, we closed our follow-on public offering, selling 5,000,000 shares of our
common stock at a public offering price of $1.20 per share. The net proceeds
were approximately $5.2 million, after deducting underwriting discounts and
commissions and other offering related expenses payable by us. On December 23,
2022, we entered into a sales agreement with the Sales Agents, providing for the
offering, issuance and sale by us of up to $40.0 million of our common stock
from time to time in ATM offerings. As of December 31, 2022, we have not sold
any shares of common stock under the ATM. In addition, in March 2023, we entered
into a Purchase Agreement with Lincoln Park Capital Fund, LLC, or Lincoln Park,
giving the Company the right, but not the obligation to sell to Lincoln Park up
to $35.0 million worth of shares of our common stock.

As of December 31, 2022, we had $41.6 million in cash and cash equivalents and
have not generated positive cash flows from operations. Based on our current
business plans, we believe that the net proceeds from the IPO and follow-on
public offering, together with our existing cash and cash equivalents and income
from non-dilutive grants, will be sufficient for us to fund our operating
expenses and capital expenditures requirements into the second half of 2024,
which assumes no usage from the ATM nor purchase agreement with Lincoln Park. We
have based these estimates on assumptions that may prove to be incorrect or
require adjustment as a result of business decisions, and we could utilize our
available capital resources sooner than we currently expect.

Future Funding Requirements


We expect to continue to incur significant and increasing expenses and net
losses for the foreseeable future, as we advance our current and future product
candidates through preclinical and clinical development, manufacture drug
product and drug supply, seek regulatory approval for our current and future
product candidates, maintain and expand our intellectual property portfolio,
hire additional research and development and business personnel, and operate as
a public company. We anticipate that we will need to raise additional funding in
the future to fund our operations, including the commercialization of any
approved product candidates. We are subject to the risks typically related to
the development of new products, and we may encounter unforeseen expenses,
difficulties, complications, delays, and other unknown factors that may
adversely affect our business.

Our future funding requirements will depend on many factors, including, but not limited to:

the scope, progress, costs and results of our ongoing and planned clinical

trials of CT1812, as well as the associated costs, including any unforeseen

? costs we may incur as a result of preclinical study or clinical trial delays

due to the COVID-19 pandemic or other diseases, macroeconomic conditions,

global or political instability, such as the ongoing conflict between Ukraine

and Russia, inflation, or other delays;

the scope, progress, costs and results of preclinical development, laboratory


 ? testing and clinical trials for any future product candidates we may decide to
   pursue;


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? the extent to which we develop, in-license or acquire other product candidates

and technologies;

the costs and timing of process development and manufacturing scale-up

? activities associated with our product candidates and other programs as we

advance them through preclinical and clinical development;

? the availability, timing, and receipt of any future NIA Grants;

? the number and development requirements of other product candidates that we may

pursue;

? the costs, timing and outcome of regulatory review of our product candidates;

the costs and timing of future commercialization activities, including product

? manufacturing, marketing, sales and distribution, for any of our product

candidates for which we receive marketing approval;

? the revenue, if any, received from commercial sales of our product candidates

for which we receive marketing approval;

? our ability to establish collaborations to commercialize CT1812 or any of our

other product candidates outside the United States;

the costs and timing of preparing, filing and prosecuting patent applications,

? maintaining and enforcing our intellectual property rights and defending any

intellectual property-related claims; and

the additional costs we may incur as a result of operating as a public company,

? including our efforts to enhance operational systems and hire additional

personnel, including enhanced internal controls over financial reporting.


Until such time as we can generate significant revenue from product sales, we
expect to finance our operations through a combination of public or private
equity offerings, debt financings or other sources, such as potential
collaboration agreements and strategic alliances, licensing or similar
arrangements with third parties. To the extent available, we expect to continue
our pursuit of non-dilutive research contributions, or grants, including
additional NIA grant funding. However, we may fail to receive additional NIA
Grants, or we may be unable to raise additional funds or enter into such other
agreements or arrangements when needed on acceptable terms, or at all. Our
failure to obtain additional NIA Grants or raise capital or enter into such
agreements as and when needed could have a material adverse effect on our
business, results of operations and financial condition.

To the extent that we raise additional capital through the sale of equity or
convertible debt securities, the ownership interest of our stockholders will be
or could be diluted, and the terms of these securities may include liquidation
or other preferences that adversely affect the rights of our common
stockholders. Debt financing and preferred equity financing, if available, may
involve agreements that include covenants limiting or restricting our ability to
take specific actions, such as incurring additional debt, making capital
expenditures or declaring dividends. If we raise funds through collaborations,
licenses and other similar arrangements with third parties, we may have to
relinquish valuable rights to our technologies, future revenue streams, research
programs or product candidates or grant licenses on terms that may not be
favorable to us and/or may reduce the value of our common stock. Adequate
funding may not be available when needed or on terms acceptable to us, or at
all. Our ability to raise additional funds may be adversely impacted by
potential worsening global economic conditions and the recent disruptions to,
and volatility in, the credit and financial markets in the United States and
worldwide resulting from the ongoing COVID-19 pandemic or other diseases, the
ongoing conflict between Ukraine and Russia, inflation, liquidity constraints,
failures and instability in U.S. and international financial banking systems,
and otherwise. If we fail to obtain necessary capital when needed on acceptable
terms, or at all, it could force us to delay, limit, reduce or terminate our
product development programs, commercialization efforts or other operations.
Insufficient liquidity may also require us to relinquish rights to product
candidates at an earlier stage of development or on less favorable terms than we
would otherwise choose. We cannot assure you that we will ever be profitable or
generate positive cash flows from operating activities.

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Cash Flows

The following table summarizes our cash flows for the periods indicated (in
thousands):

                                                                  Year Ended December 31,
                                                                     2022            2021
Cash flows used in operating activities                         $     (18,533)     $ (3,631)
Cash flows used in investing activities                                  (171)          (27)
Cash flows provided by financing activities                              5,546        53,201
Effect of exchange rate changes on cash and cash equivalents               (1)          (11)
Net (decrease) increase in cash and cash equivalents            $     (13,159)     $  49,532


Operating Activities

Net cash used in operating activities for the year ended December 31, 2022 was
$18.5 million, which consisted primarily of our net loss of $21.4 million
partially offset by net non-cash charges of $3.8 million and a net change of
$0.9 million in our operating assets and liabilities. The non-cash charges
primarily consisted of depreciation and amortization of less than $0.1 million,
amortization of right-of-use assets of $0.2 million, and equity-based
compensation of $3.6 million. The net change in our operating assets and
liabilities was primarily due to an increase in grant receivables of $1.9
million, an increase in other assets of $1.7 million, a decrease in accounts
payable of $1.1 million, partially offset by an increase in deferred grant
income and other liabilities of $2.6 million, and a decrease of $0.9 million of
prepaid expenses, other current assets, and other receivables.

Net cash used in operating activities for the year ended December 31, 2021 was
$3.6 million, which consisted primarily of our net loss of $11.7 million
partially offset by net non-cash charges of $5.2 million and a net change of
$2.8 million in our operating assets and liabilities. The non-cash charges
primarily consisted of depreciation and amortization of $0.1 million,
amortization of debt discount of $0.4 million, change in fair value of SAFE of
$2.2 million, and equity-based compensation of $5.1 million, partially offset by
a change in the fair value of the derivative liability of $2.2 million. The net
change in our operating assets and liabilities was primarily due to an increase
in accounts payable of $2.2 million, an increase in accrued expenses of $1.3
million, and an increase in other current liabilities of $0.5 million, partially
offset by an increase in grant receivables of $1.2 million.

Investing Activities

During the years ended December 31, 2022 and 2021, we used $0.2 and less than $0.1 million of cash, respectively, for investing activities related to purchases of property and equipment.

Financing Activities



Net cash provided by financing activities was $5.5 million and $53.2 million for
the years ended December 31, 2022 and 2021, respectively. The decrease in cash
provided by financing activities relates primarily to the IPO of our stock
whereby we received net proceeds of $44.2 million and the issuance of SAFEs
whereby we received $8.9 million during the year ended December 31, 2021. This
is partially offset by proceeds received from the exercise of common stock
options in the amount of $1.6 million, as well as proceeds from issuance of
common stock in our follow-on public offering in the amount of $5.3 million
during the year ended December 31, 2022.

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Contractual Obligations

The following table summarizes our contractual obligations as of December 31,
2022 (in thousands):

                                          Less than      1 to 3      3 to 5      More than 5
                                           1 Year        Years       Years          years         Total
Operating lease obligations:             $       209    $    443    $   

242    $         126    $ 1,020
Total:                                   $       209    $    443    $    242    $         126    $ 1,020
In October 2022, we entered into an insurance premium financing arrangement with
a lender. Under the agreement, we financed $0.8 million of certain premiums at a
6.85% annual interest rate. Payments of less than $0.1 million are due monthly
from October 2022 through September 2023. As of December 31, 2022, the
outstanding principal of the loan was $0.6 million.

We have entered into operating leases for office and laboratory facilities under
agreements that run through May 31, 2029. The amounts reflected in the table
above consist of the future minimum lease payments under the non-cancelable
lease arrangements.

On August 31, 2022, we entered into an agreement to lease 2,980 square feet of
office space in Pittsburgh, Pennsylvania. The lease has a term of 45 months and
commenced on October 1, 2022. The annual base rent under the lease is less than
$0.1 million throughout the term of the lease. Total payments due over the term
of the lease are $0.2 million. Additionally, on August 31, 2022, we modified one
of our existing lease agreements with the landlord for approximately 3,706
square feet of lab space at the same location to extend the lease term
termination date from June 30, 2023 until June 30, 2026.

On July 1, 2021, we entered into an agreement to lease 2,864 square feet of
office space in Purchase, New York. The lease has a term of 89 months and
commenced on December 9, 2021. The annual base rent under the lease is less than
$0.1 million for the first lease year and is subject to annual increases of
between 1.82% and 2.04%. We provided a security deposit in the form of a Letter
of Credit in the amount of less than $0.1 million pursuant to the terms of the
lease.

We enter into contracts in the normal course of business with contract research
organizations and other vendors to assist in the performance of our research and
development and other services and products for operating purposes. These
contracts typically do not contain minimum purchase commitments and generally
provide for termination on notice, and therefore are cancelable contracts and
not included in the table of contractual obligations.

Critical Accounting Policies and Use of Estimates

We believe that the accounting policies discussed below are critical to understanding our historical and future performance, as these policies relate to the more significant areas involving management's judgments and estimates.

Research and Development Costs, Accrued Research and Development Costs and Related Prepaid Expenses



Research and development costs are expensed as incurred. Research and
development expenses consist principally of personnel costs, including salaries,
stock-based compensation, and benefits for employees, third-party license fees
and other operational costs related to our research and development activities,
including allocated facility-related expenses and external costs of outside
vendors, and other direct and indirect costs. Non-refundable advance payments
for research and development costs are deferred and expensed as the related
goods are delivered or services are performed. Costs for external development
activities are recognized based on an evaluation of the progress to completion
of specific tasks. Costs for certain research and development activities are
recognized based on the pattern of performance of the individual arrangements,
which may differ from the pattern of billings incurred, and are reflected in the
consolidated financial statements as prepaid expenses or as accrued research and
development expenses.

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Equity-Based Compensation

We maintain an equity-based compensation plan as a long-term incentive for employees, non-employee directors and consultants. The plan allows for the issuance of incentive stock options, non-qualified stock options, restricted stock units, and other forms of equity awards.


We recognize equity-based compensation expense for stock options subject to
time-based vesting on a straight-line basis over the requisite service period
and account for forfeitures as they occur. To the extent any stock option grants
are made subject to the achievement of a performance condition, management
evaluates when the achievement of any such performance-based milestone is
probable based on the relative satisfaction of the performance conditions as of
the reporting date. Our stock-based compensation costs are based upon the grant
date fair value of options estimated using the Black-Scholes option pricing
model.

The Black-Scholes option pricing model utilizes inputs which are highly subjective assumptions and generally require significant judgment. These assumptions include:

Expected Term. The expected term represents the period that the stock-based

? awards are expected to be outstanding. As we do not have sufficient historical


   experience for determining the expected term of the stock option awards
   granted, expected term has been calculated using the simplified method.

Risk-Free Interest Rate. The risk-free interest rate is based on the U.S.

? Treasury yield curve in effect at the date of grant for zero-coupon U.S.

Treasury constant maturity notes with terms approximately equal to the

stock-based awards' expected term.

Expected Volatility. Up until October 13, 2021, the Company was privately held

and did not have a trading history of common stock. As such, the expected

volatility was derived from the average historical stock volatilities of the

common stock of several public companies within the industry that the Company

? considers to be comparable to our business over a period equivalent to the

expected term of the stock-based awards. The Company will continue to derive

expected volatility from average historical stock volatilities of industry

peers until the Company has compiled a trading history of its own for a

sufficient period of time.

? Expected Dividend Yield. The expected dividend yield is zero as we have not

paid and do not anticipate paying any dividends in the foreseeable future.

Fair Value of Common Stock. Prior to the IPO, the fair value of the shares of

common stock underlying the stock-based awards had historically been determined

by the board of directors with input from management. Because there was no

public market for the common stock, the board of directors has determined the

fair value of the common stock at the time of grant of the stock-based award by

? considering a number of objective and subjective factors, including having

contemporaneous valuations of the common stock performed by a third-party

valuation specialist. Subsequent to the IPO, the board of directors will

determine the fair value of the shares of common stock underlying the

stock-based awards based off of the closing price as reported on the Nasdaq

Stock Market LLC on the grant date.




See Note 9 to our audited financial statements for more information concerning
certain of the specific assumptions we used in applying the Black-Scholes option
pricing model to determine the estimated fair value of our stock options.
Certain of such assumptions involve inherent uncertainties and the application
of significant judgment.

As of December 31, 2022, the total unrecognized compensation expense related to
unvested time-based vesting awards was $6.5 million, which is expected to be
recognized over weighted-average remaining vesting period of approximately

2.0 years.

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Recent Accounting Pronouncements



For a description of recent accounting pronouncements, see Note 2 of the notes
to our audited consolidated financial statements for the year ended December 31,
2022 included elsewhere in this Annual Report.

Emerging Growth Company Status



We are an emerging growth company, as defined in the JOBS Act. Under the JOBS
Act, emerging growth companies can delay adopting new or revised accounting
standards issued subsequent to the enactment of the JOBS Act until such time as
those standards apply to private companies. We elected to use this extended
transition period for complying with new or revised accounting standards that
have different effective dates for public and private companies until the
earlier of the date that we (1) are no longer an emerging growth company or (2)
affirmatively and irrevocably opt out of the extended transition period provided
in the JOBS Act. As a result, our financial statements may not be comparable to
companies that comply with the new or revised accounting pronouncements as of
public company effective dates.

We will remain an emerging growth company until the earliest to occur of: (1)
the last day of the fiscal year in which we have at least $1.235 billion in
annual revenue; (2) the last day of the fiscal year in which we are deemed to be
a "large accelerated filer," as defined in Rule 12b-2 under the Exchange Act,
which would occur if the market value of our common stock held by non-affiliates
exceeded $700.0 million as of the last business day of the second fiscal quarter
of such year; (3) the date on which we have issued more than $1.0 billion in
non-convertible debt securities during the prior three-year period; and (4) the
last day of the fiscal year ending after the fifth anniversary of our IPO.

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