You should read the following discussion and analysis of our financial condition
and results of operations together with our condensed consolidated financial
statements and the related notes included elsewhere in this Quarterly Report on
Form 10-Q. This discussion and other parts of this Quarterly Report on Form 10-Q
contain forward-looking statements that involve risks and uncertainties, such as
statements of our plans, objectives, expectations, and intentions. As a result
of many factors, including those factors set forth in the "Risk Factors" section
of this Quarterly Report on Form 10-Q, our actual results could differ
materially from the results described in or implied by the forward-looking
statements contained in the following discussion and analysis.

Overview



We are a clinical-stage precision medicine company transforming the drug
discovery process by combining leading-edge computational and experimental
technologies with the goal of bringing life-changing therapies to patients. As
we believe we are among the first of a new breed of biotech created at the
intersection of complementary techniques and technologies, we aim to push the
boundaries of what's possible in drug discovery. Our Dynamo™ platform integrates
an array of leading-edge computational and experimental approaches designed to
drug protein targets that have previously been intractable or inadequately
addressed. Our initial focus is on enhancing small molecule therapeutic
discovery in targeted oncology and genetic disease indications.

We have deployed our technology platform to build a pipeline of product
candidates to address targets in precision medicine where there is clear
evidence linking target proteins to disease and where molecular diagnostics can
unambiguously identify relevant patients for treatment. We believe this approach
will increase the likelihood of successfully translating a specific
pharmacological mechanism into clinical benefit.

We are advancing a pipeline of medicines to address targets in precision oncology and genetic disease indications, including our lead product candidates, RLY-4008, RLY-2608, GDC-1971 (formerly known as RLY-1971), and RLY-5836.


RLY-4008. In the third quarter of 2020, we initiated a first-in-human clinical
trial for RLY-4008, a potent, selective and oral small molecule inhibitor of
fibroblast growth factor receptor 2, or FGFR2, for patients with advanced or
metastatic FGFR2-altered solid tumors. In October 2021, we announced initial
clinical data from this trial, which suggested robust inhibition of FGFR2 in the
first 49 subjects that was not observed to be limited by off-target toxicities,
including hyperphosphatemia and diarrhea, as of the data cut-off date of
September 9, 2021. In December 2021, we initiated expansion cohorts at a
continuous 70 mg once-daily, or QD, dose, and in January 2022, the U.S. Food and
Drug Administration, or FDA, granted orphan drug designation to RLY-4008 for the
treatment of cholangiocarcinoma, or CCA. In the first half of 2022, we conducted
an end-of-Phase 1 meeting with the FDA to discuss next steps for the clinical
development of RLY-4008. Based on discussions with the FDA, we have decided to
move forward with a single-arm trial design for pan-FGFR, or FGFRi,
treatment-naïve, FGFR2-fusion CCA at 70 mg QD to potentially support accelerated
approval. In June 2022, we announced the anticipated registrational path for
RLY-4008 in CCA and the interim clinical data with a data cut-off date of April
19, 2022 that was shared with the FDA to support that potential registrational
path. In September 2022, we announced additional interim clinical data for
RLY-4008 with a data cut-off date of August 1, 2022 that was presented at the
European Society for Medical Oncology Congress 2022. This interim clinical data
showed an interim overall response rate, or ORR, of 88% from the FGFRi
treatment-naïve, FGFR2-fusion CCA patients treated at the pivotal dose of 70 mg
QD and an interim ORR of 63% across all dose levels and schedules. In October
2022, the European Medicines Agency, or EMA, adopted a positive opinion on the
orphan drug designation application for RLY-4008 for the treatment of biliary
tract cancer.


RLY-2608. In December 2021, we dosed the first patient in a first-in-human
clinical trial for RLY-2608, the first known allosteric, pan-mutant and
isoform-selective phosphoinostide 3 kinase alpha, or PI3K?, inhibitor in
clinical development, or the ReDiscover Trial. In April 2022, we initiated the
second arm of the dose escalation part of this trial, evaluating RLY-2608 in
combination with fulvestrant for patients with HR+, HER2-, PI3K?-mutated,
locally advanced or metastatic breast cancer. RLY-2608 is the lead program of
multiple efforts in our PI3K? franchise to discover and develop mutant selective
inhibitors of PI3K?. In the fourth quarter of 2021, we announced preclinical
data for RLY-2608, in which we observed that RLY-2608 preferentially bound to
mutant PI3K? at a novel allosteric site discovered by the Dynamo platform. The
data also suggest that projected clinically relevant doses of RLY-2608 achieved
tumor regression in PIK3CA mutant in vivo xenograft mouse models representing
H1047R and E545K mutations with significantly reduced impact on glucose
metabolism compared to non-mutant selective active site inhibitors. The data
further suggest that in preclinical models, RLY-2608 combined with standard of
care therapies resulted in regressions in ER+/HER2- breast cancer. In April
2023, we announced initial clinical data from the ReDiscover Trial with a data
cut-off date of March 9, 2023 that was presented at the American Association for
Cancer Research Annual Meeting 2023. The initial clinical data demonstrated that
RLY-2608 achieved selective target engagement at multiple predicted efficacious
doses with a favorable initial safety and tolerability profile. RLY-2608 has
been generally well-tolerated in the 42 patients treated as of the data cut-off
date. Among the 17 patients receiving doses at target exposures (400 mg
twice-daily, or BID, dose in monotherapy, 600 mg BID dose in combination with
fulvestrant and 800 mg BID dose in combination with fulvestrant), the observed
adverse events were mostly low-grade events that were manageable and reversible
with no observed Grade 3 hyperglycemia, diarrhea or rash, which are the adverse
events most commonly associated with treatment discontinuation for existing
investigational and approved therapies that inhibit PI3K?. Early anti-tumor
activity was seen across a range of doses and mutations, including a partial
response in a breast cancer patient with twelve prior lines of therapy whose
response was

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confirmed subsequent to the data cut-off date. The median treatment duration
among the 27 patients with breast cancer was approximately four months with 70
percent (19/27) still on treatment as of the data cut-off date. To date, a
maximum tolerated dose has not been reached and dose exploration is ongoing to
determine the recommended dose(s) for the dose expansion cohorts.


GDC-1971 (formerly known as RLY-1971). In the first quarter of 2020, we
initiated a Phase 1a clinical trial for RLY-1971, our inhibitor of Src homology
region 2 domain-containing phosphatase-2, or SHP2, as a monotherapy in patients
with advanced or metastatic solid tumors. We completed enrollment of this trial
in 2022. In December 2020, we entered into a global collaboration and license
agreement with Genentech, Inc., a member of the Roche Group, or Genentech, for
the development and commercialization of RLY-1971 (now referred to as GDC-1971),
or the Genentech Agreement. Genentech initiated the cohort of GDC-1971 in
combination with GDC-6036, its KRAS G12C inhibitor, in a Phase 1b trial in July
2021, and a Phase 1b trial of GDC-1971 in combination with atezolizumab, its
PD-L1 antibody, in August 2022.


RLY-5836. As a demonstration of our commitment to PI3K? as a target, we have
also developed a second preclinical molecule, RLY-5836, which is a selective and
chemically distinct pan-mutant PI3K?. Preclinical data suggest that projected
clinically relevant doses of RLY-5836 were associated with tumor regression in
PIK3CA mutant xenograft mouse models representing H1047R and E545K mutations,
the same models evaluated with RLY-2608. We completed Investigational New Drug,
or IND, enabling studies for RLY-5836 in 2022. In April 2023, we initiated our
first-in-human clinical trial for RLY-5836 in patients with advanced solid
tumors with a PI3K? mutation.

While our initial focus is on precision oncology, we believe our Dynamo platform
may also be broadly applied to other areas of precision medicine, such as
genetic disease indications. In addition to the four lead product candidates
described above, we have two discovery stage programs as part of our HR+/HER2-
breast cancer franchise, including RLY-2139, a selective cyclin dependent kinase
2, or CDK2, inhibitor, and a rationally designed estrogen receptor alpha, or
ER?, degrader. We also have five additional discovery stage programs across both
precision oncology and genetic disease indications. We are focused on using the
novel insights derived from our approach to transform the lives of patients
suffering from debilitating and life-threatening diseases through the discovery,
development and commercialization of our therapies.

We were incorporated in May 2015. We have devoted substantially all of our
resources to developing our lead product candidates, developing our innovative
computational and experimental approaches on protein motion, building our
intellectual property portfolio, business planning, raising capital, and
providing general and administrative support for these operations. To date, we
have principally financed our operations through private placements of preferred
stock, convertible debt, and proceeds from public offerings of our common stock.
We have also received an aggregate of $105.0 million in connection with the
Genentech Agreement through March 31, 2023.

In September 2022, we completed a public offering, or the September 2022
Offering, of 11,320,755 shares of common stock at an offering price of $26.50
per share. We received proceeds of $284.7 million, which was net of $15.3
million in underwriting discounts and commissions, as well as other offering
expenses.

In October 2021, we completed a public offering, or the October 2021 Offering,
of 15,188,679 shares of common stock, including the exercise in full of the
underwriters' option to purchase an additional 1,981,132 shares, at an offering
price of $26.50 per share. We received proceeds of $382.2 million, which was net
of $20.3 million in underwriting discounts and commissions, as well as other
offering expenses.

In July 2020, we closed our initial public offering, or IPO, and issued
23,000,000 shares of our common stock at a price of $20.00 per share for
proceeds of $425.3 million, which was net of $34.7 million in underwriting
discounts and commissions, as well as other offering expenses. Prior to our IPO,
we had received gross proceeds of approximately $520.0 million from sales of
preferred stock and issuance of convertible debt.

On April 15, 2021, we entered into an Agreement and Plan of Merger, or the
Merger Agreement, and on April 22, 2021, we acquired ZebiAI Therapeutics, Inc.,
or ZebiAI. Pursuant to the Merger Agreement, upfront consideration included (a)
payment of approximately $20.0 million in cash and (b) issuance of 1,914,219
shares of our common stock at an aggregate fair value of $61.8 million, both
transferred to ZebiAI's former stockholders, option holders, and warrant
holders, or the ZebiAI Holders, upon closing. In addition, (i) the ZebiAI
Holders are eligible to receive up to $85.0 million in payments upon the
achievement of certain platform or program milestones, payable in shares of our
common stock, or the Contingent Milestone Payments, a portion of which was paid
to the ZebiAI Holders in 2022, and (ii) we will pay 10% of payments we receive
within three years of the closing date of the Merger Agreement from partnering,
collaboration, or other agreements related to ZebiAI's platform, up to an
aggregate maximum amount of $100.0 million, payable in cash to the ZebiAI
Holders.

In December 2020, we entered into the Genentech Agreement with Genentech for the
development and commercialization of GDC-1971 (formerly known as RLY-1971).
Under the terms of the Genentech Agreement, we received $75.0 million in an
upfront payment in 2021, as well as $30.0 million in milestone payments from
Genentech through March 31, 2023. We are eligible to receive an additional $5.0
million in near-term payments; and, if we do not opt into a U.S. profit/cost
share, up to $685.0 million in additional development, commercialization and
sales-based milestones for GDC-1971; and tiered royalties on annual global net
sales (on a country-by-country basis), anticipated to be in the
low-to-mid-teens, subject to reductions in certain circumstances. Additionally,
we are eligible to receive additional royalties in the event of regulatory
approval of GDC-1971 and Genentech's compound, GDC-6036, that directly binds to
and inhibits KRAS G12C, in combination. We have the right to opt-in to a 50/50
U.S. profit/cost share and, if we do opt into the U.S.

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profit/cost share, we are eligible to receive up to $410.0 million in additional
commercialization and sales-based milestones for GDC-1971 outside of the U.S.
and tiered royalties on annual net sales outside of the U.S. (on a
country-by-country basis), anticipated to be in the low-to-mid-teens, subject to
reduction in certain circumstances. We also retain the right to develop GDC-1971
in combination with our FGFR2 and PI3K? programs.

Inflation generally affects us by increasing our employee-related costs and
clinical trial expenses, as well as other operating expenses. Our financial
condition and results of operations may also be impacted by other factors we may
not be able to control, such as public health crises, global supply chain
disruptions, uncertain global economic conditions, global trade disputes or
political instability as further discussed in the section "Risk Factors" in this
Quarterly Report. We do not believe that such factors had a material adverse
impact on our results of operations during the three months ended March 31, 2023
and 2022.

Since our inception, we have incurred significant operating losses on an
aggregate basis. Our ability to generate product revenue sufficient to achieve
profitability will depend on the successful development and eventual
commercialization of one or more of our current or future product candidates.
Our net losses were $94.2 million and $62.0 million for the three months ended
March 31, 2023 and 2022, respectively. As of March 31, 2023, we had an
accumulated deficit of $1.2 billion. These losses have resulted primarily from
costs incurred in connection with research and development activities, licensing
and patent investment, and general and administrative costs associated with our
operations. We expect to continue to incur significant expenses, including the
costs of operating as a public company, and generate increasing operating losses
for at least the next several years.

We anticipate that our expenses will increase substantially if and as we:

conduct our current and future clinical trials of RLY-4008, RLY-2608, and RLY-5836;

conduct additional preclinical research and development of RLY-2139, our CDK2 inhibitor, and ER? degrader programs and other early-stage programs;

initiate and continue research and preclinical and clinical development of our other product candidates;

seek to identify additional product candidates;

pursue marketing approvals for any of our product candidates that successfully complete clinical trials, if any;

establish a sales, marketing and distribution infrastructure to commercialize any products for which we may obtain marketing approval;

require the manufacture of larger quantities of our product candidates for clinical development and potentially commercialization;

obtain, maintain, expand and protect our intellectual property portfolio;

acquire or in-license other drugs and technologies;

hire and retain additional clinical, regulatory, quality and scientific personnel;

build out new facilities or expand existing facilities to support our ongoing development activity; and

add operational, financial and management information systems and personnel, including personnel to support our drug development, any future commercialization efforts and our operations as a public company.

In addition, if we obtain marketing approval for any of our lead product candidates, we expect to incur significant commercialization expenses related to product manufacturing, marketing, sales and distribution.



As a result, we will need additional financing to support our continuing
operations. Until such time as we can generate significant revenue from product
sales, if ever, we expect to finance our operations through a combination of
public or private equity or debt financings or other sources, which may include
collaborations with third parties. We may be unable to raise additional funds or
enter into such other agreements or arrangements when needed, on favorable
terms, or at all. If we fail to raise capital or enter into such agreements as
and when needed, we may have to significantly delay, scale back or discontinue
the development or commercialization of one or more of our product candidates.

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Because of the numerous risks and uncertainties associated with product
development, we are unable to predict the timing or amount of increased expenses
or when or if we will be able to achieve or maintain profitability. Even if we
are able to generate revenue from product sales, we may not become profitable.
If we fail to become profitable or are unable to sustain profitability on a
continuing basis, then we may be unable to continue our operations at planned
levels and may be forced to reduce or terminate our operations.

We believe our cash, cash equivalents, and investments of $937.8 million as of
March 31, 2023 will enable us to fund our operating expenses and capital
expenditure requirements into 2025. We have based this estimate on assumptions
that may prove to be wrong, and we could exhaust our available capital resources
sooner than we expect. We will need to raise additional capital in the future to
continue developing the drugs in our pipeline and to commercialize any approved
drug. We may seek to obtain additional financing in the future through the
issuance of our common stock, through other equity or debt financings or through
collaborations or partnerships with other companies. We may not be able to raise
additional capital on terms acceptable to us, or at all, and any failure to
raise capital as and when needed could compromise our ability to execute on our
business plan.

Components of our Results of Operations

Revenue

To date, our revenue primarily consists of amounts related to the Genentech Agreement. We recognize our revenue as the performance obligations are satisfied under the Genentech Agreement.

Operating Expenses

Research and Development Expenses

Research and development expenses include:

salaries, benefits, and other employee related costs, including stock-based compensation expense, for personnel engaged in research and development functions;

costs of outside consultants, including their fees, stock-based compensation, and related travel expenses;

expenses incurred under agreements with contract research organizations, or CROs, contract manufacturing organizations, or CMOs, and other vendors that conduct our clinical trials and preclinical activities;

costs of acquiring, developing, and manufacturing clinical trial materials and lab supplies;

costs related to compliance with regulatory requirements; and


facility costs, depreciation and other expenses, which include direct and
allocated expenses for rent and maintenance of facilities, insurance and other
supplies. We do not allocate certain internal costs, facilities, or overhead
costs to specific development programs.

We expense research and development costs as the services are performed or the
goods are received. We recognize costs for certain development activities, such
as clinical trials, based on an evaluation of the progress to completion of
specific tasks using data such as patient enrollment, clinical site activations,
or other information provided to us by our vendors and our clinical
investigative sites. Payments for these activities are based on the terms of the
individual agreements, which may differ from the pattern of costs incurred, and
are reflected in our financial statements as prepaid expenses or accrued
research and development expenses.

Our lead product candidates, RLY-4008, RLY-2608, GDC-1971, and RLY-5836, are in
clinical development. We also have two additional discovery stage programs as
part of our HR+/HER2- breast cancer franchise, including RLY-2139, our CDK2
inhibitor, and a rationally designed ER? degrader. We also have five additional
discovery stage programs across both precision oncology and genetic disease
indications. Costs incurred for these programs include costs incurred to support
our discovery research and translational science efforts up to the initiation of
first-in-human clinical development. Platform research and other research and
development activities include costs that are not specifically allocated to
active product candidates, including facilities costs, depreciation expense and
other costs. Employee related expenses include salary, wages, stock-based
compensation, and other costs related to our personnel, which are not allocated
to specific programs or activities.

We cannot determine with certainty the duration and costs of future clinical
trials and future development costs, if, when, or to what extent we will
generate revenue from the commercialization and sale of any of our product
candidates for which we obtain marketing approval or our other research and
development costs. We may never succeed in obtaining marketing approval for any
of our product candidates.

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The duration, costs, and timing of clinical trials and development of our product candidates will depend on a variety of factors, including:


the scope, rate of progress, expense, and results of our preclinical development
activities, any future clinical trials of RLY-4008, RLY-2608, RLY-5836, or other
product candidates and other research and development activities that we may
conduct;

uncertainties in clinical trial design and patient enrollment or drop out or discontinuation rates;

establishing an appropriate safety and efficacy profile with IND-enabling studies;

the initiation and completion of future clinical trial results;

the timing, receipt, and terms of any approvals from applicable regulatory authorities including the FDA and non-U.S. regulators;

significant and changing government regulation and regulatory guidance;

potential additional studies requested by regulatory agencies;

establishing clinical and commercial manufacturing capabilities or making arrangements with third-party manufacturers in order to ensure that we or our third-party manufacturers are able to make product successfully;


the impact of any business interruptions to our operations, including the timing
and enrollment of patients in our planned clinical trials, or to those of our
manufacturers, suppliers, or other vendors resulting from the lingering effects
of the COVID-19 pandemic or a similar public health crisis or the changing
political conditions, such as the ongoing conflict between Russia and Ukraine
and related global economic sanctions;

the expense of filing, prosecuting, defending, and enforcing any patent claims and other intellectual property rights; and

maintaining a continued acceptable safety profile of our product candidates following approval, if any, of our product candidates.



Research and development activities are central to our business model. Product
candidates in later stages of clinical development generally have higher
development costs than those in earlier stages of clinical development,
primarily due to the increased size and duration of later-stage clinical trials.
We expect that our research and development expenses will continue to increase
for the foreseeable future as we continue to conduct clinical trials of
RLY-4008, RLY-2608, and RLY-5836, as well as identify and develop additional
product candidates.

A change in the outcome of any of these variables with respect to the
development of a product candidate could mean a significant change in the costs
and timing associated with the development of that product candidate. For
example, if the FDA or another regulatory authority were to require us to
conduct clinical trials beyond those that we anticipate will be required for the
completion of clinical development of a product candidate, or if we experience
significant trial delays due to patient enrollment or other reasons, we would be
required to expend significant additional financial resources and time on the
completion of clinical development.

Change in Fair Value of Contingent Consideration Liability



Change in fair value of contingent consideration liability consists of
fluctuations in the estimated fair value of Contingent Milestone Payments under
the Merger Agreement with ZebiAI. In future periods, we expect the fair value of
such Contingent Milestone Payments to increase or decrease based on, among other
things, our estimates of the probability of achieving the contingent milestones
and timing in connection therewith, as well as, to a lesser extent, changes in
market interest rates and the time value of money.

General and Administrative Expenses



General and administrative expenses consist primarily of salaries and other
related costs, including stock-based compensation, for personnel in our
executive, finance, corporate, and business development and administrative
functions. General and administrative expenses also include legal fees relating
to patent and corporate matters; professional fees for accounting, auditing,
tax, and consulting services; other expenses associated with operating as a
public company, including compliance with exchange listing and Securities and
Exchange Commission, or SEC, requirements, director and officer insurance costs,
and investor and public relations costs; travel expenses; and facility-related
expenses, which include depreciation costs and allocated expenses for rent and
maintenance of facilities and other operating costs.

We expect that our general and administrative expenses will increase in the
future, as we increase our general and administrative personnel headcount to
support personnel in research and development and to support our operations,
generally, and as we increase our research and development activities and
activities related to the potential commercialization of our product candidates.

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Other Income, Net

Other income, net primarily consists of interest income related to interest earned on our cash, cash equivalents, and investments.

Income Taxes



Since our inception in 2015, we have not recorded any U.S. federal or state
income tax benefits for the net losses we have incurred in any year or for our
earned research and development tax credits due to our uncertainty of realizing
a benefit from those items.

Results of Operations

Comparison of the three months ended March 31, 2023 and 2022

The following table summarizes our results of operations for the three months ended March 31, 2023 and 2022:



                                                    Three Months Ended March 31,           Change
                                                     2023                  2022
                                                                  (in thousands)
License and other revenue                       $           226       $          419     $     (193 )
Operating expenses:
Research and development expenses               $        82,827       $       51,667     $   31,160
Change in fair value of contingent
consideration liability                                  (1,003 )             (4,595 )        3,592
General and administrative expenses                      19,579               16,068          3,511
Total operating expenses                                101,403               63,140         38,263
Loss from operations                                   (101,177 )            (62,721 )      (38,456 )
Other income, net                                         6,938                  675          6,263
Net loss                                        $       (94,239 )     $      (62,046 )   $  (32,193 )


Revenue

We recognized revenue of approximately $0.2 million and $0.4 million for the
three months ended March 31, 2023 and 2022, respectively. The decrease of $0.2
million was primarily due to the decrease in research and development services
provided under the Genentech Agreement, as we are nearing completion of the
Phase 1a clinical trial of RLY-1971.

Research and Development Expenses

The following summarizes our research and development expenses for the three months ended March 31, 2023 and 2022:



                                                   Three Months Ended March 31,           Change
                                                     2023                 2022
                                                                  (in thousands)
External costs for programs in clinical
trials                                          $       25,043       $        8,716     $   16,327
External costs for platform technologies and
preclinical programs                                    20,769               17,421          3,348
Employee related expenses                               30,451               21,083          9,368
Other expenses                                           6,564                4,447          2,117
Total research and development expenses         $       82,827       $      

51,667 $ 31,160




Research and development expenses were $82.8 million for the three months ended
March 31, 2023 compared to $51.7 million for the three months ended March 31,
2022. The increase of $31.2 million was due to $16.3 million of additional
external costs in connection with the ongoing enrollment of our clinical trials
for RLY-4008 and RLY-2608, $9.4 million of additional employee related costs
from increased headcount, including an increase in stock-based compensation
expense of $4.5 million, $3.3 million of additional external costs for platform
technologies and preclinical programs, and $2.1 million of other expenses,
primarily for facility expenses associated with additional lab space.

Change in Fair Value of Contingent Consideration Liability



Change in fair value of our contingent consideration liability for milestones
under the Merger Agreement with ZebiAI was a decrease of $1.0 million for the
three months ended March 31, 2023 compared to a decrease of $4.6 million for the
three months ended March 31, 2022. The fluctuation of $3.6 million was primarily
attributable to changes in the assumptions underlying the fair value measurement
between periods, which we expect to continue in future periods.

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General and Administrative Expenses

General and administrative expenses were $19.6 million for the three months ended March 31, 2023 compared to $16.1 million for the three months ended March 31, 2022. The increase of $3.5 million was primarily due to $3.9 million of additional employee related costs due to increased headcount, including an increase in stock-based compensation expense of $3.6 million, offset by individually insignificant fluctuations in other general and administrative expenses.

Other Income, Net



Other income, net, was $6.9 million for the three months ended March 31, 2023
compared to $0.7 million for the three months ended March 31, 2022. The increase
of $6.2 million was primarily a result of changes in interest rates.

Liquidity and Capital Resources



Since our inception, we have not generated any revenue from product sales and
have incurred significant operating losses. We have not yet commercialized any
products and we do not expect to generate revenue from sales of any product
candidates for several years, if ever. To date, we have principally financed our
operations through private placements of preferred stock, convertible debt and
proceeds from public offerings of our common stock. In July 2020, we closed our
initial public offering and issued 23,000,000 shares of common stock for
proceeds of $425.3 million, which was net of $34.7 million in underwriting
discounts and commissions, as well as other offering expenses. Prior to our
initial public offering, we received gross proceeds of $520.0 million from sales
of preferred stock and issuance of convertible debt. We received an upfront
payment of $75.0 million from Genentech pursuant to the Genentech Agreement in
January 2021, as well as $30.0 million in milestone payments through March 31,
2023. As of March 31, 2023, we had cash, cash equivalents, and investments of
$937.8 million.

In August 2021, we filed a universal shelf registration statement on Form S-3ASR
with the SEC, or the 2021 Shelf, to register for sale an amount of our common
stock, preferred stock, debt securities, warrants and/or units in one or more
offerings, which became effective upon filing with the SEC (File No.
333-258768).

In August 2021, we entered into a sales agreement, or Sales Agreement, with
Cowen and Company, LLC, or Cowen, pursuant to which we may offer and sell shares
of our common stock having aggregate gross proceeds of up to $300.0 million from
time to time in "at-the-market" offerings through Cowen, as our sales agent. We
agreed to pay Cowen a commission of up to 3.0% of the gross proceeds of any
shares sold by Cowen under the Sales Agreement. There have been no shares of our
common stock sold under the Sales Agreement as of March 31, 2023.

In October 2021, we completed the October 2021 Offering of 15,188,679 shares of
common stock, including the exercise in full of the underwriters' option to
purchase an additional 1,981,132 shares, at an offering price of $26.50 per
share. We received proceeds of $382.2 million, which was net of $20.3 million in
underwriting discounts and commissions, as well as other offering expenses.

In September 2022, we completed the September 2022 Offering of 11,320,755 shares
of common stock at an offering price of $26.50 per share. We received proceeds
of $284.7 million, which was net of $15.3 million in underwriting discounts and
commissions, as well as other offering expenses.

Cash Flows



The following table summarizes our sources and uses of cash for each of the
periods presented:

                                                        Three Months Ended March 31,
                                                         2023                  2022
                                                               (in thousands)
Cash used in operating activities                   $       (67,130 )     $       (49,173 )
Cash provided by (used in) investing activities              75,314              (112,384 )
Cash provided by financing activities                         1,297         

883


Net increase (decrease) in cash, cash
equivalents, and restricted cash                    $         9,481       $      (160,674 )


Operating Activities

During the three months ended March 31, 2023, we used $67.1 million of cash on
operating activities, primarily resulting from our net loss of $94.2 million,
offset by non-cash charges of $19.7 million and cash provided by changes in our
operating assets and liabilities of $7.4 million.

During the three months ended March 31, 2022, we used $49.2 million on operating
activities, primarily resulting from our net loss of $62.0 million, offset by
non-cash charges of $10.5 million and cash provided by changes in our operating
assets and liabilities of $2.4 million.

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Investing Activities



During the three months ended March 31, 2023, net cash provided by investing
activities was $75.3 million, primarily consisting of $77.2 million in proceeds
from net maturities of investments, offset by $1.9 million for the acquisition
of property and equipment.

During the three months ended March 31, 2022, we used $112.4 million of cash on
investing activities, primarily consisting of $109.6 million in net purchases of
investments and $2.8 million for the acquisition of property and equipment.

Financing Activities



During the three months ended March 31, 2023, net cash provided by financing
activities was $1.3 million, consisting of $1.3 million in proceeds from the
exercise of stock options.

During the three months ended March 31, 2022, net cash provided by financing
activities was $0.9 million, primarily consisting of $0.9 million in proceeds
from the exercise of stock options.

Funding Requirements



We expect our expenses to increase substantially in connection with our ongoing
clinical development activities related to RLY-4008, RLY-2608, and RLY-5836 and
the ongoing preclinical development activities of our other programs. In
addition, we continue to incur additional costs associated with operating as a
public company. We expect that our expenses will increase substantially as
discussed in more detail in "¾ Overview" above.

As of March 31, 2023, we had cash, cash equivalents, and investments of $937.8
million. We believe that our existing cash, cash equivalents, and investments
will enable us to fund our operating expenses and capital expenditure
requirements into 2025. We have based this estimate on assumptions that may
prove to be wrong, and we could exhaust our available capital resources sooner
than we expect.

Because of the numerous risks and uncertainties associated with the development
of RLY-4008, RLY-2608, RLY-5836, and our other product candidates and programs,
and because the extent to which we may enter into collaborations with third
parties for the development of our product candidates is unknown, we are unable
to estimate the timing and amounts of increased capital outlays and operating
expenses associated with completing the research and development of our product
candidates. Our future capital requirements will depend on many factors,
including:


the impact of any business interruptions to our operations, including the timing
and enrollment of patients in our planned clinical trials, or to those of our
manufacturers, suppliers, or other vendors, resulting from public health
epidemics or outbreaks of infectious disease, such as COVID-19, or changing
political conditions, such as the ongoing conflict between Russia and Ukraine
and related global economic sanctions;

the scope, progress, results, and costs of our current and future clinical trials of RLY-4008, RLY-2608, and RLY-5836 and additional preclinical research of our other programs;

the scope, progress, results, and costs of drug discovery, preclinical research, and clinical trials for our other product candidates;

the number of future product candidates that we pursue and their development requirements;

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

our ability to establish and maintain collaborations on favorable terms, if at all;

the success of any existing or future collaborations that we may enter into with third parties;

the extent to which we acquire or invest in businesses, products and technologies, including entering into licensing or collaboration arrangements for product candidates, such as the Genentech Agreement;

the achievement of milestones or occurrence of other developments that trigger payments under any existing or future collaboration agreements, if any;


the extent to which we are obligated to reimburse, or entitled to reimbursement
of, clinical trial costs under any existing or future collaboration agreements,
if any;

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the costs and timing of future commercialization activities, including drug sales, marketing, manufacturing, and distribution, for any of our product candidates for which we receive marketing approval, to the extent that such sales, marketing, manufacturing, and distribution are not the responsibility of any collaborator that we may have at such time;

the amount of revenue, if any, received from commercial sales of our product candidates, should any of our product candidates receive marketing approval;

the costs of preparing, filing, and prosecuting patent applications, maintaining, and enforcing our intellectual property rights and defending intellectual property-related claims;

our headcount growth and associated costs as we expand our business operations and our research and development activities; and

the costs of operating as a public company.



Developing pharmaceutical products, including conducting preclinical studies and
clinical trials, is a time-consuming, expensive, and uncertain process that
takes years to complete, and we may never generate the necessary data or results
required to obtain marketing approval for any product candidates or generate
revenue from the sale of any product candidate for which we may obtain marketing
approval. In addition, our product candidates, if approved, may not achieve
commercial success. Our commercial revenues, if any, will be derived from sales
of drugs that we do not expect to be commercially available for many years, if
ever. Accordingly, we will need to obtain substantial additional funds to
achieve our business objectives.

Adequate additional funds may not be available to us on acceptable terms, or at
all. We do not currently have any committed external source of funds. To the
extent that we raise additional capital through the sale of equity or
convertible debt securities, your ownership interest may be diluted, and the
terms of these securities may include liquidation or other preferences and
anti-dilution protections that could adversely affect your rights as a common
stockholder. Additional debt or preferred equity financing, if available, may
involve agreements that include restrictive covenants that may limit our ability
to take specific actions, such as incurring debt, making capital expenditures,
or declaring dividends, which could adversely impact our ability to conduct our
business, and may require the issuance of warrants, which could potentially
dilute your ownership interest.

If we raise additional funds through collaborations, strategic alliances, or
licensing arrangements with third parties, we may have to relinquish valuable
rights to our technology, future revenue streams, research programs or product
candidates, or grant licenses on terms that may not be favorable to us. If we
are unable to raise additional funds through equity or debt financings or
collaborations, strategic alliances or licensing arrangements with third parties
when needed, we may be required to delay, limit, reduce, and/or terminate our
product development programs or any future commercialization efforts or grant
rights to develop and market product candidates that we would otherwise prefer
to develop and market ourselves.

Contractual Obligations and Commitments



There were no material changes to our contractual obligations and commitments
during the three months ended March 31, 2023. For more information on our
contractual obligations and commitments, please refer to "Management's
Discussion and Analysis of Financial Condition and Results of Operations" in our
Annual Report on Form 10-K for the year ended December 31, 2022, as well as Note
9, Commitments and Contingencies, of the notes to our condensed consolidated
financial statements included elsewhere in this Quarterly Report on Form 10-Q.

Critical Accounting Policies and Use of Estimates



Our management's discussion and analysis of financial condition and results of
operations is based on our financial statements, which have been prepared in
accordance with generally accepted accounting principles in the United States,
or GAAP. The preparation of our condensed consolidated financial statements and
related disclosures requires us to make estimates and assumptions that affect
the reported amounts of assets and liabilities, costs and expenses and the
disclosure of contingent assets and liabilities in our financial statements. We
base our estimates on historical experience, known trends and events and various
other factors that we believe are reasonable under the circumstances, the
results of which form the basis for making judgments about the carrying values
of assets and liabilities that are not readily apparent from other sources. We
evaluate our estimates and assumptions on an ongoing basis. Our actual results
may differ from these estimates under different assumptions or conditions.

For a discussion of our critical accounting estimates, see "Management's
Discussion and Analysis of Financial Condition and Results of Operations" in our
Annual Report on Form 10-K for the year ended December 31, 2022 filed with the
SEC on February 23, 2023, the notes to our audited financial statements
appearing in our Annual Report on Form 10-K, and the notes to the financial
statements appearing elsewhere in this Quarterly Report on Form 10-Q. There have
been no material changes to these critical accounting policies and estimates
through March 31, 2023 from those discussed in our Annual Report on Form 10-K
for the year ended December 31, 2022.

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Recently Issued and Adopted Accounting Pronouncements



From time to time, new accounting pronouncements are issued that the Company
adopts as of the specified effective date. The Company does not believe that the
adoption of any recently issued standards have or may have a material impact on
its condensed consolidated financial statements and disclosures.

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