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Sensei Biotherapeutics Reports Third Quarter 2025 Financial Results BOSTON, MA

Key Takeaway: Sensei Biotherapeutics reported its financial results for Q3 2025, highlighting the discontinuation of its lead product, solnerstotug. The company is currently exploring strategic alternatives, which may involve asset sales or a potential merger, while reducing its workforce by 65%. A review of the company's development pipeline has led to this decision amid unfavorable market conditions, resulting in a notable decrease in cash and substantial net losses. The company's cash and cash equivalents dropped significantly to $25 million, raising concerns about its financial viability.

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CONCERNS & RISKS

  • Discontinuation of the development of solnerstotug due to company review.
  • 65% workforce reduction implemented to conserve cash.
  • Significant decrease in cash position from previous year.
  • Net loss for Q3 2025 remains substantial at $4.6 million.

Full Press Release Details

Sensei Biotherapeutics Reports Third Quarter 2025 Financial Results
BOSTON, MA - November 14, 2025 - Sensei Biotherapeutics, Inc. (Nasdaq: SNSE), a clinical stage biotechnology
company focused on the discovery and development of next-generation therapeutics for cancer patients, today reported financial results for the third quarter 2025.
On October 30, 2025, the Company announced that its Board of Directors determined, after extensive consideration of the Company's development
pipeline and current market conditions, to discontinue development of solnerstotug and initiate a comprehensive review of strategic alternatives aimed at maximizing shareholder value. The Company is exploring a range of strategic alternatives that
may include, among other options, a sale of assets, licensing arrangements, collaborations, a sale of the Company, a business combination, a merger, or an orderly wind-down of operations.
In connection with this strategic review, the Company has implemented a workforce reduction to preserve cash, reducing its workforce by approximately
65 percent. The Company is retaining a small team of employees to assist in exploring strategic alternatives, maintaining compliance with regulatory and financial reporting requirements, and managing the orderly cessation of development
Third Quarter 2025 Financial Results
Cash Position: Cash, cash equivalents and marketable securities were $25.0 million as of September 30, 2025, as compared to
$41.3 million as of December 31, 2024.
Research and Development (R&D) Expenses: R&D expenses were $2.5 million
for the quarter ended September 30, 2025, compared to $4.6 million for the quarter ended September 30, 2024. The decrease in R&D expenses was primarily attributable to lower personnel and facilities costs, and reduced lab supply
General and Administrative (G&A) Expenses: G&A expenses were $2.3 million for the quarter ended September 30,
2025, compared to $3.2 million for the quarter ended September 30, 2024. The decrease in G&A expense was primarily attributable to lower personnel costs.
Net Loss: Net loss was $4.6 million for the quarter ended September 30, 2025, compared to $7.3 million for the quarter ended
About Sensei Biotherapeutics
Sensei Biotherapeutics (Nasdaq: SNSE) is a clinical stage biotechnology company focused on the discovery and development of next-generation therapeutics for
cancer patients. Through its TMAb (Tumor Microenvironment Activated biologics) platform, Sensei develops conditionally active therapeutics designed to disable immunosuppressive signals or
activate immunostimulatory signals selectively in the tumor microenvironment to unleash T cells against tumors. Sensei's lead product candidate is solnerstotug, a conditionally active antibody designed to block the V-domain Ig suppressor of T cell activation (VISTA) checkpoint selectively within the low pH tumor microenvironment, where VISTA acts as a suppressor of T cells by binding the receptor
PSGL-1. For more information, please visit www.senseibio.com, and follow the company on X @SenseiBio and LinkedIn.
Condensed Statements of Operations
(Unaudited, in thousands except share and per share data)
Three Months Ended September 30,
2025 2024
Operating expenses:
Research and development $ 2,536 $ 4,637
General and administrative 2,315 3,186
Total operating expenses 4,851 7,823
Loss from operations (4,851 ) (7,823 )
Total other income 282 570
Net loss $ (4,569 ) (7,253 )
Net loss attributable to common stockholders (4,569 ) (7,253 )
Net loss per share, basic and diluted $ (3.62 ) $ (5.77 )
Weighted-average common shares outstanding, basic and diluted 1,261,290 1,257,299
Selected Condensed Balance Sheet Data
(Unaudited, in thousands)
September 30, 2025 December 31, 2024
Cash and cash equivalents $ 10,562 $ 9,994
Marketable securities 14,479 31,341
Total assets 27,589 45,361
Total liabilities 4,582 6,975
Total stockholders' equity 23,007 38,386
Cautionary Note Regarding Forward-Looking Statements
Any statements contained in this press release that do not describe historical facts may constitute forward-looking statements as that term is defined in the
Private Securities Litigation Reform Act of 1995. These statements may be identified by words and phrases such as "believe", "designed to," "expect", "may", "plan", "potential",
"will", and similar expressions, and are based on Sensei's current beliefs and expectations. These forward-looking statements include Sensei's discontinued development of solnerstotug and review of strategic alternatives
aimed at maximizing shareholder value and related workforce reduction. These statements involve risks and uncertainties that could cause actual results to differ materially from those reflected in such statements. Risks and uncertainties that may
cause actual results to differ materially include uncertainties inherent in the risks relating to volatility and uncertainty in the capital markets for biotechnology companies; availability of suitable third parties with which to conduct
contemplated strategic alternatives; whether Sensei will be able to pursue a strategic transaction, or whether any transaction, if pursued, will be completed on attractive terms or at all; changes in expected or existing competition; changes in the
regulatory environment; and unexpected litigation or other disputes; and other risks and uncertainties that are described in Sensei's Quarterly Report on Form 10-Q filed with the U.S. Securities and
Exchange Commission (SEC) on November 14, 2025 and Sensei's other Periodic Reports filed with the SEC. Any forward-looking statements speak only
as of the date of this press release and are based on information available to Sensei as of the date of this release, and Sensei assumes no obligation to, and does not intend to, update any
forward-looking statements, whether as a result of new information, future events or otherwise.
Investor and Media Contact:

Frequently Asked Questions

What recent decision did Sensei Biotherapeutics make regarding solnerstotug?

Sensei Biotherapeutics decided to discontinue the development of solnerstotug.

What is the current cash position of Sensei Biotherapeutics?

As of September 30, 2025, the cash position is $25.0 million.

How much did R&D expenses decrease in Q3 2025?

R&D expenses decreased to $2.5 million from $4.6 million in Q3 2024.

What was the net loss reported for Q3 2025?

The net loss for Q3 2025 was $4.6 million.

Why did Sensei Biotherapeutics reduce its workforce?

The workforce was reduced by approximately 65% to preserve cash.

Last updated: Nov 14, 2025