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Shattuck Labs (NASDAQ: STTK) posts Q1 2026 loss as DR3 program advances

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Shattuck Labs, Inc. reported first quarter 2026 results and business updates. The company is running a Phase 1 trial of its lead DR3 blocking antibody SL-325, has completed enrollment in all single- and multiple-ascending dose cohorts, and plans to share detailed data in the second quarter of 2026. Subject to positive Phase 1 data and regulatory alignment, a Phase 2 trial in Crohn’s disease is expected to start in the third quarter of 2026, and a lead DR3-based bispecific antibody has entered IND-enabling activities.

Financially, Shattuck had $90.4 million in cash, cash equivalents and short-term investments as of March 31, 2026, up from $60.9 million a year earlier. First quarter 2026 research and development expenses were $10.9 million, general and administrative expenses were $4.6 million, and net loss was $14.8 million, or $(0.13) per basic and diluted share. The company expects existing cash, including potential proceeds from outstanding common stock warrants, to fund operations into 2029 based on current plans.

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Insights

Shattuck advances DR3 program while maintaining cash runway into 2029.

Shattuck Labs highlighted clinical progress for SL-325, its DR3 blocking antibody, with Phase 1 enrollment complete and data planned for the second quarter of 2026. A Phase 2 Crohn’s disease trial is expected in the third quarter, contingent on positive data and regulatory alignment.

First quarter 2026 spending remained focused on R&D at $10.9 million, with G&A at $4.6 million. Net loss was $14.8 million, or $(0.13) per share, reflecting a typical development-stage profile without product revenue.

Cash, cash equivalents and short-term investments totaled $90.4 million as of March 31, 2026. The company states that current capital, assuming full exercise of outstanding common stock warrants, is expected to fund operations into 2029, based on existing operational plans.

Item 2.02 Results of Operations and Financial Condition Financial
Disclosure of earnings results, typically an earnings press release or preliminary financials.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
Cash, cash equivalents and short-term investments $90.4 million As of March 31, 2026
Cash and investments prior year $60.9 million As of March 31, 2025
Research and development expenses $10.9 million Quarter ended March 31, 2026
General and administrative expenses $4.6 million Quarter ended March 31, 2026
Net loss $14.8 million Quarter ended March 31, 2026
Net loss per share $(0.13) per share Basic and diluted, quarter ended March 31, 2026
Weighted-average shares outstanding 112,234,551 shares Basic and diluted, quarter ended March 31, 2026
Total assets $102.1 million As of March 31, 2026
DR3 blocking antibody medical
"pioneering the development of potential first-in-class monoclonal and bispecific DR3 blocking antibodies"
Phase 1 clinical trial medical
"Phase 1 clinical trial of SL-325 enrollment complete; data expected"
A phase 1 clinical trial is the first stage of testing a new drug or treatment in people, typically involving a small group to assess safety, how the body handles the treatment, and appropriate dosing. For investors, phase 1 results are an early risk check — like a test drive that can reveal fatal flaws or promising signals — and they often cause big changes in a drug’s perceived value and the company’s prospects.
Phase 2 clinical trial medical
"expects to initiate a Phase 2 clinical trial of SL-325 in patients with Crohn’s disease"
A phase 2 clinical trial is a research study that tests a new medical treatment or drug to see if it is effective and safe for a specific condition. It involves a larger group of people than earlier trials and helps determine whether the treatment should move forward to more extensive testing. For investors, successful phase 2 results can signal potential for future approval and commercial success, while setbacks may indicate challenges ahead.
IND-enabling activities medical
"Shattuck’s lead bispecific antibody has entered IND-enabling activities"
IND-enabling activities are the lab tests, animal studies and manufacturing checks a company performs to demonstrate a new drug is reasonably safe and can be produced reliably before filing an Investigational New Drug (IND) application to begin human trials. For investors these steps are a key milestone because completing them reduces safety and regulatory risk, requires substantial time and funding, and signals that a program is ready to move from early development into clinical testing—like building a foundation before constructing a house.
forward-looking statements regulatory
"Certain statements in this press release may constitute “forward-looking statements”"
Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.
Regulation FD regulatory
"for complying with disclosure obligations under Regulation FD"
Regulation FD is a rule that prevents company insiders, like executives, from sharing important information with some people before others get it. It matters because it helps ensure all investors have equal access to key news, making the stock market fairer and reducing chances of insider trading.
Revenue $0
Net loss $14.8 million
Research and development expenses $10.9 million
General and administrative expenses $4.6 million
Net loss per share $(0.13) basic and diluted
Guidance

As of March 31, 2026, cash and cash equivalents were approximately $90.4 million, and current cash resources, assuming full exercise of outstanding common stock warrants, are expected to fund operations into 2029 based on current operational plans.

0001680367FALSE00016803672025-05-072025-05-07

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): May 7, 2026
Shattuck Labs, Inc.
(Exact name of registrant as specified in its charter)

Delaware001-3959381-2575858
(State or other jurisdiction of
incorporation or organization)
(Commission File Number)(I.R.S. Employer
Identification Number)

500 W. 5th Street, Suite 1200
Austin, TX 78701
(Address of principal executive offices including zip code)
(512) 900-4690
(Registrant’s telephone number, including area code)
Not Applicable
(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuance to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $0.0001 per shareSTTKThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act



Item 2.02 Results of Operations and Financial Condition.

On May 7, 2026, Shattuck Labs, Inc. issued a press release announcing its financial results for the quarter ended March 31, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

As provided in General Instruction B.2 of Form 8-K, the information in this Item 2.02 and Exhibit 99.1 incorporated herein shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall such information or Exhibit 99.1 be deemed to be incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.
Exhibits

Exhibit
Number
Description of Exhibit
  
99.1
Press release issued by Shattuck Labs, Inc. regarding its financial results for the quarter ended March 31, 2026, dated May 7, 2026
104The cover page from the Company’s Current Report on Form 8-K formatted in Inline XBRL.
2


SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Shattuck Labs, Inc.
 
Date: May 7, 2026
By:
/s/ Dr. Taylor Schreiber
 
Dr. Taylor Schreiber
Chief Executive Officer
(principal executive officer)
3

Shattuck Labs Reports First Quarter 2026 Financial Results and Recent Business Highlights
Phase 1 clinical trial of SL-325 enrollment complete; data expected in the second quarter of 2026 –
Phase 2 clinical trial of SL-325 in patients with Crohn’s disease expected to initiate in the third quarter of 2026 –
AUSTIN, TX and DURHAM, NC, May 7, 2026 – Shattuck Labs, Inc. (Shattuck or the Company) (NASDAQ: STTK), a clinical-stage biotechnology company pioneering the development of potential first-in-class monoclonal and bispecific DR3 blocking antibodies for the treatment of patients with inflammatory and immune-mediated diseases, today reported financial results for the first quarter ended March 31, 2026 and provided recent business highlights.
“We are pleased to have completed enrollment in our Phase 1 clinical trial of SL-325, and are looking forward to sharing a comprehensive data set on all single ascending dose and multiple ascending dose cohorts from this study in the second quarter of 2026, including safety and tolerability, pharmacokinetics, receptor occupancy, duration of receptor occupancy, pharmacodynamics, and immunogenicity data,” said Taylor Schreiber, M.D., Ph.D., Chief Executive Officer of Shattuck.
DR3 Program Development in 2026
Shattuck’s lead product candidate, SL-325, is a potentially first-in-class and best-in-mechanism DR3 blocking antibody for the treatment of Crohn’s disease, ulcerative colitis, and other inflammatory and immune-mediated diseases. Recent updates and anticipated upcoming milestones for SL-325, and Shattuck’s other DR3 blocking antibodies, include:
The Phase 1 trial evaluating the safety, tolerability, immunogenicity, and pharmacokinetics (PK) of SL-325 in healthy volunteers is ongoing and will determine the recommended Phase 2 dose and dosing schedule.
Enrollment of all six single-ascending dose cohorts and all three multiple-ascending dose cohorts of the trial is now complete, with participant follow-up, data collection, and data analysis ongoing.
Shattuck plans to present safety and tolerability, PK, receptor occupancy, duration of receptor occupancy, pharmacodynamics, and immunogenicity data from this trial in the second quarter of 2026.
Subject to positive Phase 1 data and regulatory alignment, Shattuck expects to initiate a Phase 2 clinical trial of SL-325 in patients with Crohn’s disease in the third quarter of 2026.
Shattuck continues to develop multiple DR3-based bispecific antibodies. Shattuck’s lead bispecific antibody has entered IND-enabling activities. This bispecific antibody was designed to inhibit both the DR3/TL1A axis and another biologically relevant target for the treatment of patients with inflammatory and immune-mediated diseases. Shattuck plans to disclose the targets of its lead bispecific product candidate, supporting preclinical data, and expected development timelines in the second quarter of 2026.
Upcoming Events
Shattuck plans to participate in the following upcoming event(s). Details will be included on the Events & Presentations section of the Company’s website.
Leerink Partners Therapeutics Forum 2026 (Boston, MA), July 14-15, 2026. Management will participate in one-on-one meetings.
First Quarter 2026 Financial Results
Cash and Cash Equivalents and Investments: As of March 31, 2026, cash and cash equivalents and short-term investments were $90.4 million, as compared to $60.9 million as of March 31, 2025.



Research and Development (R&D) Expenses: R&D expenses were $10.9 million for the quarter ended March 31, 2026, as compared to $9.9 million for the quarter ended March 31, 2025.
General and Administrative (G&A) Expenses: G&A expenses were $4.6 million for the quarter ended March 31, 2026, as compared to $4.5 million for the quarter ended March 31, 2025.
Net Loss: Net loss was $14.8 million for the quarter ended March 31, 2026, or $0.13 per basic and diluted share, as compared to a net loss of $13.7 million for the quarter ended March 31, 2025, or $0.27 per basic and diluted share.
Financial Guidance
As of March 31, 2026, cash and cash equivalents were approximately $90.4 million. Shattuck’s current cash and cash equivalents, assuming the full exercise of the outstanding common stock warrants, are expected to fund operations into 2029. This cash runway guidance is based on the Company’s current operational plans and excludes any additional capital that may be received (other than from the exercise of the common stock warrants), proceeds from business development transactions, and/or additional costs associated with clinical development activities that may be undertaken.
About SL-325
SL-325 is a potential first-in-class Death Receptor 3 (DR3) blocking antibody designed to achieve a complete and durable blockade of the clinically validated DR3/TL1A pathway. Shattuck’s preclinical studies demonstrate high affinity binding and superior activity over TL1A antibodies, and offer a data-driven rationale for targeting the TNF receptor, DR3, versus its ligand, TL1A. SL-325 is a fully Fc-silenced, humanized immunoglobulin G monoclonal antibody with a favorable safety profile in non-human primates, currently being evaluated in a Phase 1 clinical trial.
About Shattuck Labs, Inc.
Shattuck Labs, Inc. is a clinical-stage biotechnology company pioneering the development of potentially first-in-class monoclonal and bispecific DR3 blocking antibodies for the treatment of patients with inflammatory and immune-mediated diseases. Shattuck’s expertise in protein engineering and the development of novel TNF receptor therapeutics come together in its lead program, SL-325, a potentially first-in-class DR3 antagonist antibody designed to achieve a more complete blockade of the clinically validated DR3/TL1A pathway. The Company has offices in both Austin, Texas and Durham, North Carolina. For more information, please visit: www.ShattuckLabs.com.
Forward-Looking Statements
Certain statements in this press release may constitute “forward-looking statements” within the meaning of the federal securities laws, including, but not limited to, Shattuck’s expectations regarding: plans for its preclinical studies, clinical trials and research and development programs, particularly with respect to SL-325; the anticipated timing of release of data from the Company’s ongoing Phase 1 clinical trial of SL-325; the anticipated timing of initiation of a Phase 2 clinical trial of SL-325 in patients with Crohn’s disease; the clinical benefit, safety and tolerability of SL-325; anticipated development of additional preclinical pipeline candidates; the timing of nomination, release of preclinical data and development timelines of a lead bispecific antibody candidate; and expectations regarding the time period over which the Company’s capital resources will be sufficient to fund its anticipated operations. Words such as “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “design,” “estimate,” “predict,” “potential,” “develop,” “plan” or the negative of these terms, and similar expressions, or statements regarding intent, belief, or current expectations, are forward-looking statements. While the Company believes these forward-looking statements are reasonable, undue reliance should not be placed on any such forward-looking statements, which are based on information available to it on the date of this release. These forward-looking statements are based upon current estimates and assumptions and are subject to various risks and uncertainties (including, without limitation, those set forth in Shattuck’s filings with the U.S. Securities and Exchange Commission (SEC)), many of which are beyond its control and subject to change. Actual results could be materially different. Risks and uncertainties include: global macroeconomic conditions and related volatility; expectations regarding the initiation, progress, and expected results of the Company’s preclinical studies, clinical trials and research and development programs; expectations regarding the timing, completion and outcome of the Company’s preclinical studies and clinical trials; the unpredictable relationship between preclinical study



results and clinical study results; the timing or likelihood of regulatory filings and approvals; liquidity and capital resources, including the time period over which current capital resources are expected to the fund the Company’s operations; and other risks and uncertainties identified in Shattuck’s Annual Report on Form 10-K for the year ended December 31, 2025, and subsequent disclosure documents filed with the SEC. Shattuck claims the protection of the Safe Harbor contained in the Private Securities Litigation Reform Act of 1995 for forward-looking statements. The Company expressly disclaims any obligation to update or alter any statements whether as a result of new information, future events or otherwise, except as required by law.
The Company intends to use the investor relations portion of its website as a means of disclosing material non-public information and for complying with disclosure obligations under Regulation FD.
Investor & Media Contact:
Andrew Neill
Chief Financial Officer
Shattuck Labs, Inc.
InvestorRelations@shattucklabs.com




FINANCIAL INFORMATION
SHATTUCK LABS, INC.
CONDENSED BALANCE SHEETS
(unaudited)
(In thousands)

March 31,
2026
December 31,
2025
  
ASSETS
Current assets:
Cash and cash equivalents$90,419 $54,192 
Investments— 23,873 
Prepaid expenses and other current assets3,334 4,410 
Total current assets93,753 82,475 
Property and equipment, net5,353 6,114 
Investment in related party1,000 1,000 
Other assets2,015 1,437 
Total assets$102,121 $91,026 
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities:
Accounts payable$1,253 $2,101 
Accrued expenses2,996 4,951 
Total current liabilities4,249 7,052 
Non-current operating lease liabilities2,037 1,584 
Total liabilities6,286 8,636 
Commitments and contingencies (Note 5)
Stockholders' equity:
Common stock
Additional paid in capital541,124 512,906 
Accumulated other comprehensive income— 
Accumulated deficit(445,296)(430,529)
Total stockholders' equity95,835 82,390 
Total liabilities and stockholders' equity$102,121 $91,026 



SHATTUCK LABS, INC.
CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
(Unaudited)
(In thousands, except share and per share amounts)
Three Months Ended March 31,
20262025
Revenue$— $— 
Operating expenses:
Research and development10,946 9,919 
General and administrative4,599 4,470 
Expense from operations15,545 14,389 
Loss from operations(15,545)(14,389)
Other income (expense):
Interest income779 689 
Other expense(1)(2)
Total other income778 687 
Net loss$(14,767)$(13,702)
Unrealized loss on investments
(6)(2)
Comprehensive loss$(14,773)$(13,704)
Net loss per share – basic and diluted$(0.13)$(0.27)
Weighted-average shares outstanding – basic and diluted112,234,551 50,965,815 

FAQ

What were Shattuck Labs (STTK) key financial results for Q1 2026?

Shattuck Labs reported a Q1 2026 net loss of $14.8 million, or $(0.13) per basic and diluted share. Research and development expenses were $10.9 million and general and administrative expenses were $4.6 million, with no reported revenue for the quarter.

How much cash does Shattuck Labs (STTK) have and what is its runway?

As of March 31, 2026, Shattuck Labs had $90.4 million in cash, cash equivalents and short-term investments. The company expects its current capital resources, assuming full exercise of outstanding common stock warrants, to fund operations into 2029 based on current operational plans.

What is the status of Shattuck Labs’ SL-325 DR3 program?

SL-325 is in an ongoing Phase 1 clinical trial in healthy volunteers, with all single- and multiple-ascending dose cohorts enrolled. Shattuck plans to present safety, pharmacokinetics, receptor occupancy and related data in the second quarter of 2026 from this study.

When will Shattuck Labs (STTK) start its Phase 2 trial for SL-325 in Crohn’s disease?

Shattuck expects to initiate a Phase 2 clinical trial of SL-325 in patients with Crohn’s disease in the third quarter of 2026, subject to positive Phase 1 data and alignment with regulators on the development plan.

What progress has Shattuck Labs made on its DR3-based bispecific antibody?

Shattuck is developing multiple DR3-based bispecific antibodies, and its lead bispecific candidate has entered IND-enabling activities. The company plans to disclose the targets, supporting preclinical data and expected development timelines in the second quarter of 2026.

Does Shattuck Labs (STTK) generate any revenue in Q1 2026?

Shattuck Labs reported no revenue for the quarter ended March 31, 2026. The company remains a clinical-stage biotechnology firm, with operating expenses driven primarily by research and development and general and administrative costs during this period.

Filing Exhibits & Attachments

4 documents