ACET on Nasdaq
Adicet Bio, Inc.
In its 2026 annual report the company says: “We are a clinical stage biotechnology company discovering and developing allogeneic gamma delta T cell therapies for autoimmune diseases and cancer. We are advancing a pipeline of “off-the-shelf” gamma delta T cells, engineered with chimeric antigen receptors (CARs), to facilitate durable activity in patients. Our approach to activate, engineer and manufacture allogeneic gamma delta T cell product candidates derived from the peripheral blood cells of unrelated donors allows us to generate new product candidates in a rapid and cost-efficient manner.”3 It is headquartered in Boston, Massachusetts.1 Its shares trade on Nasdaq under the symbol ACET.1
Price unavailable
Last updated Oct 21, 2026.
Overview
- TickerACET on Nasdaq1
- IndustryPharmaceutical Preparations1
- HeadquartersBoston, Massachusetts1
- Incorporated inDE2
- Business address131 Dartmouth Street, 3Rd Floor, Boston, Ma 021162
- Filer categoryNon-accelerated filer, Smaller reporting company2
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We are a clinical stage biotechnology company discovering and developing allogeneic gamma delta T cell therapies for autoimmune diseases and cancer. We are advancing a pipeline of “off-the-shelf” gamma delta T cells, engineered with chimeric antigen receptors (CARs), to facilitate durable activity in patients.3 From its latest annual report
Financials
From the company’s reports to the SEC. Every number links to the filing it came from.
Financial statements
Every line of the income statement as filed: the last 2 fiscal years, latest first.9
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Research and development | $99.1M | $99.3M |
| General and administrative | $23.0M | $28.3M |
| Total operating expenses | $122.1M | $127.6M |
| Loss from operations | -$122.1M | -$127.6M |
| Interest income | $5.8M | $10.7M |
| Interest expense | -$36.0K | -$4.0K |
| Other expense, net | -$430.0K | -$217.0K |
| Loss before income tax provision | -$116.8M | -$117.1M |
| Income tax provision | $0 | $0 |
| Net loss | -$116.8M | -$117.1M |
| Net loss per share, basic | -$16.95 | -$21.33 |
| Net loss per share, diluted | -$16.95 | -$21.33 |
| Weighted-average common shares used in computing net loss per share, basic | 6.9M shares | 5.5M shares |
| Weighted-average common shares used in computing net loss per share, diluted | 6.9M shares | 5.5M shares |
| Unrealized gain on treasury securities, net of tax | $86.0K | $16.0K |
| Total other comprehensive income | $86.0K | $16.0K |
| Comprehensive loss | -$116.7M | -$117.1M |
No quarter-by-quarter statement was filed.
Every line of the balance sheet as filed: the last 5 fiscal years (annual) or 5 quarters (quarterly), latest first.9
| Period ending | 2025-12-31 | 2025-09-30 | 2024-12-31 | 2024-01-31 | 2023-12-31 |
|---|---|---|---|---|---|
| Cash and cash equivalents | $38.9M | $56.5M | |||
| Short-term investments in treasury securities | $119.6M | $119.8M | |||
| Prepaid expenses and other current assets | $2.4M | $3.8M | |||
| Total current assets | $160.9M | $180.1M | |||
| Restricted cash | $2.9M | $2.9M | |||
| Property and equipment, net | $16.5M | $22.5M | |||
| Operating lease right-of-use asset | $10.9M | $14.2M | |||
| Finance lease right-of-use asset | $1.0M | $0 | |||
| Other non-current assets | $76.0K | $428.0K | |||
| Total assets | $192.4M | $220.2M | |||
| Accounts payable | $4.7M | $4.8M | |||
| Accrued and other current liabilities | $13.6M | $11.4M | |||
| Operating lease liability | $2.8M | $3.1M | |||
| Finance lease liability | $349.0K | $0 | |||
| Total current liabilities | $21.5M | $19.4M | |||
| Operating lease liability, net of current portion | $10.9M | $14.1M | |||
| Finance lease liability, net of current portion | $642.0K | $0 | |||
| Other non-current liabilities | $62.0K | $116.0K | |||
| Total liabilities | $33.1M | $33.6M | |||
| Preferred stock, $0.0001 par value, 10,000,000 shares authorized as of December 31, 2025 and December 31, 2024, respectively; none issued and outstanding as of December 30, 2025 and December 31, 2024, respectively | $0 | $0 | |||
| Common stock, $0.0001 par value, 300,000,000 shares authorized as of December 31, 2025 and December 31, 2024, respectively; 9,586,770 and 5,160,545 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively | $10.0K | $5.0K | |||
| Additional paid-in capital | $773.8M | $684.5M | |||
| Accumulated deficit | -$614.7M | -$497.9M | |||
| Accumulated other comprehensive income | $102.0K | $16.0K | |||
| Total stockholders' equity | $159.2M | $186.6M | $170.2M | ||
| Total liabilities and stockholders' equity | $192.4M | $220.2M | |||
| Common stock price per share | $0.00 | $0.00 | $0.00 | $0.00 | |
| Common stock, shares authorized | 300.0M shares | 300.0M shares | |||
| Common stock, shares issued | 9.6M shares | 5.2M shares | 332.8K shares | ||
| Common stock, shares outstanding | 9.6M shares | 5.2M shares | |||
| Preferred Stock, par value | $0.00 | $0.00 | |||
| Preferred stock shares authorized | 10.0M shares | 10.0M shares | |||
| Preferred stock shares issued | 0 shares | 0 shares | |||
| Preferred stock shares outstanding | 0 shares | 0 shares |
| Period ending | 2025-12-31 | 2025-09-30 | 2024-12-31 | 2024-01-31 | 2023-12-31 |
|---|---|---|---|---|---|
| Cash and cash equivalents | $38.9M | $56.5M | |||
| Short-term investments in treasury securities | $119.6M | $119.8M | |||
| Prepaid expenses and other current assets | $2.4M | $3.8M | |||
| Total current assets | $160.9M | $180.1M | |||
| Restricted cash | $2.9M | $2.9M | |||
| Property and equipment, net | $16.5M | $22.5M | |||
| Operating lease right-of-use asset | $10.9M | $14.2M | |||
| Finance lease right-of-use asset | $1.0M | $0 | |||
| Other non-current assets | $76.0K | $428.0K | |||
| Total assets | $192.4M | $220.2M | |||
| Accounts payable | $4.7M | $4.8M | |||
| Accrued and other current liabilities | $13.6M | $11.4M | |||
| Operating lease liability | $2.8M | $3.1M | |||
| Finance lease liability | $349.0K | $0 | |||
| Total current liabilities | $21.5M | $19.4M | |||
| Operating lease liability, net of current portion | $10.9M | $14.1M | |||
| Finance lease liability, net of current portion | $642.0K | $0 | |||
| Other non-current liabilities | $62.0K | $116.0K | |||
| Total liabilities | $33.1M | $33.6M | |||
| Preferred stock, $0.0001 par value, 10,000,000 shares authorized as of December 31, 2025 and December 31, 2024, respectively; none issued and outstanding as of December 30, 2025 and December 31, 2024, respectively | $0 | $0 | |||
| Common stock, $0.0001 par value, 300,000,000 shares authorized as of December 31, 2025 and December 31, 2024, respectively; 9,586,770 and 5,160,545 shares issued and outstanding as of December 31, 2025 and December 31, 2024, respectively | $10.0K | $5.0K | |||
| Additional paid-in capital | $773.8M | $684.5M | |||
| Accumulated deficit | -$614.7M | -$497.9M | |||
| Accumulated other comprehensive income | $102.0K | $16.0K | |||
| Total stockholders' equity | $159.2M | $186.6M | $170.2M | ||
| Total liabilities and stockholders' equity | $192.4M | $220.2M | |||
| Common stock price per share | $0.00 | $0.00 | $0.00 | $0.00 | |
| Common stock, shares authorized | 300.0M shares | 300.0M shares | |||
| Common stock, shares issued | 9.6M shares | 5.2M shares | 332.8K shares | ||
| Common stock, shares outstanding | 9.6M shares | 5.2M shares | |||
| Preferred Stock, par value | $0.00 | $0.00 | |||
| Preferred stock shares authorized | 10.0M shares | 10.0M shares | |||
| Preferred stock shares issued | 0 shares | 0 shares | |||
| Preferred stock shares outstanding | 0 shares | 0 shares |
Cash flow is reported year to date, not quarter by quarter, so there are no separate quarterly figures.
Every line of the cash flow as filed: the last 2 fiscal years, latest first.9
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net loss | -$116.8M | -$117.1M |
| Depreciation and amortization expense | $6.4M | $6.5M |
| Noncash lease expense | $3.4M | $3.2M |
| Stock-based compensation expense | $14.3M | $22.2M |
| Loss on disposal of property and equipment | $103.0K | $0 |
| Net amortization of premiums and accretion discounts on investments | -$4.1M | -$1.7M |
| Amortization of deferred transaction costs | $43.0K | $39.0K |
| Prepaid expenses and other current assets | $1.7M | -$1.3M |
| Other non-current assets | $308.0K | $353.0K |
| Accounts payable | $1.0M | $1.1M |
| Operating lease liability | -$3.4M | -$3.7M |
| Accrued and other current and non-current liabilities | $1.9M | -$2.0M |
| Net cash used in operating activities | -$95.2M | -$92.4M |
| Purchases of short-term treasury securities | -$140.9M | -$129.1M |
| Maturities of short term treasury securities | $145.0M | $11.0M |
| Purchase of property and equipment | -$1.7M | -$1.1M |
| Net cash provided by (used in) investing activities | $2.4M | -$119.2M |
| Proceeds from issuance of common stock pursuant to at-the-market offering, net of issuance costs | $0 | $19.3M |
| Proceeds from issuance of common stock and pre-funded warrants pursuant to underwritten public offering, net of issuance costs | $75.2M | $91.7M |
| Proceeds from exercise of stock options | $1.0K | $195.0K |
| Proceeds from Employee Stock Purchase Plan | $326.0K | $335.0K |
| Taxes withheld and paid related to net share settlement of equity awards | -$104.0K | -$141.0K |
| Principal payments on finance leases | -$150.0K | |
| Net cash provided by financing activities | $75.2M | $111.3M |
| Net change in cash, cash equivalents and restricted cash | -$17.6M | -$100.3M |
| Purchases of property and equipment included in accounts payable and accrued expenses | $209.0K | $1.5M |
| Right-of-use asset acquired under finance leases | $1.1M | |
| Offering costs in accounts payable and accrued expenses | $344.0K |
No quarter-by-quarter statement was filed.
Corporate structure
Adicet Bio, Inc. sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.
Major holders of Adicet Bio, Inc.
- RA CAPITAL MANAGEMENT, L.P. Filed SCHEDULE 13G/A on Adicet Bio, Inc., latest Aug 14, 2026 (7 filings since Oct 17, 2022)
- Woodline Partners LP Filed SCHEDULE 13G/A on Adicet Bio, Inc., latest May 15, 2026 (2 filings since Feb 17, 2026)
- ORBIMED ADVISORS LLC Filed SCHEDULE 13D/A on Adicet Bio, Inc., latest Apr 10, 2026 (6 filings since Dec 14, 2021)
- TANG CAPITAL MANAGEMENT LLC Filed SCHEDULE 13G/A on Adicet Bio, Inc., latest Feb 17, 2026 (3 filings since Nov 14, 2024)
- Franklin Templeton Investments Filed SCHEDULE 13G on Adicet Bio, Inc., latest Jan 29, 2026
- Commodore Capital LP Filed SC 13G/A on Adicet Bio, Inc., latest Nov 14, 2024 (2 filings since Jan 19, 2024)
- RTW INVESTMENTS, LP Filed SC 13G/A on Adicet Bio, Inc., latest Nov 14, 2024 (4 filings since Dec 15, 2021)
- Cowen Financial Products LLC Filed SC 13G/A on Adicet Bio, Inc., latest Nov 13, 2024 (4 filings since Apr 22, 2022)
- MILLENNIUM MANAGEMENT LLC Filed SC 13G/A on Adicet Bio, Inc., latest Oct 8, 2024 (2 filings since Feb 27, 2024)
- Morgan Stanley Filed SC 13G/A on Adicet Bio, Inc., latest Jul 10, 2024 (2 filings since Feb 12, 2024)
- EcoR1 Capital, LLC Filed SC 13G/A on Adicet Bio, Inc., latest Feb 14, 2024 (2 filings since Dec 23, 2022)
- TANG CAPITAL PARTNERS LP Filed SC 13G/A on Adicet Bio, Inc., latest Feb 14, 2024 (2 filings since Mar 13, 2023)
- Adicet Bio, Inc. Boston, Massachusetts
Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
What it owns
What Adicet Bio, Inc. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.
Property and equipment
| Item | Latest | A year before | Change |
|---|---|---|---|
| Property and equipment, before depreciation | $43.9M9 Dec 31, 2025 | $43.8M9 Dec 31, 2024 | +0.2% |
| Accumulated depreciation | $27.4M9 Dec 31, 2025 | $21.3M9 Dec 31, 2024 | +28.5% |
| Property and equipment, net | $16.5M9 Dec 31, 2025 | $22.5M9 Dec 31, 2024 | −26.6% |
| Finance-lease assets | $1.0M9 Dec 31, 2025 | $09 Dec 31, 2024 | |
| Operating-lease assets (leased space) | $10.9M9 Dec 31, 2025 | $14.2M9 Dec 31, 2024 | −23.2% |
Investments
| Item | Latest | A year before | Change |
|---|---|---|---|
| Cash and cash equivalents | $38.9M9 Dec 31, 2025 | $56.5M9 Dec 31, 2024 | −31.1% |
| Debt securities available for sale | $119.6M9 Dec 31, 2025 | $119.8M9 Dec 31, 2024 | −0.2% |
Properties, in its own words
We have offices in Boston, Massachusetts, and Redwood City, California. Our principal executive offices are located at 131 Dartmouth Street, 3rd Floor, Boston, Massachusetts. On January 31, 2024, our Boston, Massachusetts lease at 200 Berkeley Street was terminated by the landlord due to closing of the office space. On January 19, 2024, we entered into a membership agreement with Industrious Bos 131 Dartmouth Street LLC for office space at 131 Dartmouth Street, Boston, Massachusetts (the Dartmouth Street Agreement). The Dartmouth Street Agreement commenced on February 1, 2024 and was set to originally expire on January 31, 2025. On March 12, 2024 and on November 25, 2024, we amended the Dartmouth Street Agreement to include additional office space and extend the term of the lease. As amended on November 25, 2024, the extended lease commenced on February 1, 2025 and was set to expire on January 31, 2026. As further amended on November 20, 2025, the extended lease commenced on February 1, 2026 and will expire on January 31, 2027.
We also lease office and laboratory space located at 1000 Bridge Parkway, Redwood City, California. The lease commenced on March 31, 2020 and expires on February 28, 2030. In addition, we had leased office space at 1200 Bridge Parkway, Redwood City, California. This lease commenced on June 17, 2022 and expired on June 30, 2025.
The rest of Item 2
We believe that our office and laboratory space is sufficient to meet our current needs and that suitable additional space will be available as and when needed.
Item 2 of the 10-K filed Mar 12, 2026.3
Leadership
Who has led Adicet Bio, Inc., and when. Pick a name to see everywhere that person has worked.
Chief executive
President
Chief financial officer
- Chief executive officerChen Schor Apr 11, 2018 to now12
- PresidentChen Schor Apr 11, 2018 to now12
- Chief financial officerBrian Nicholas Harvey Sep 17, 2020 to now13
Board members and other officers (28)
- Chief Medical OfficerJulia D. Maltzman Jan 23, 2025 to now14
- Chief Scientific OfficerBlake Aftab Oct 13, 2021 to now15
- Chief Human Resources OfficerCarrie Krehlik Sep 17, 2020 to Feb 17, 202116
- Chief Medical OfficerFrancesco Galimi Sep 17, 2020 to Jun 7, 202417
- OfficerStewart Abbot Sep 17, 2020 to Jun 14, 202118
- Chief Scientific OfficerLloyd Klickstein May 15, 2019 to now19
- OfficerChen Schor Jan 25, 2018 to Dec 17, 201820
- Chief Medical OfficerJoan Mannick Jan 25, 2018 to Dec 6, 201921
- Vice President, FinanceJohn J. McCabe Jan 25, 2018 to Dec 6, 201922
- Chief Commercial OfficerMeredith Manning Sep 18, 2018 to Feb 28, 201923
- Board memberLloyd Klickstein Aug 20, 2024 to now24
- Board memberKatie Peng Jul 11, 2023 to now25
- Board memberAndrew Sinclair Mar 4, 2021 to now26
- Board memberMichael Kauffman Nov 18, 2021 to Aug 23, 202427
- Board memberAya Jakobovits Sep 17, 2020 to Aug 23, 202428
- Board memberCarl L. Gordon Sep 17, 2020 to Aug 23, 202429
- Board memberErez Chimovits Sep 17, 2020 to Jun 29, 202330
- Board memberIsrael Biofund Gp Limited Partnership Orbimed Sep 17, 2020 to Jan 26, 202431
- Board memberIsrael Gp L.p. Orbimed Ii. Sep 17, 2020 to Jan 26, 202431
- Board memberSteve Dubin Sep 17, 2020 to now32
- Board memberYair Chaim Schindel Sep 17, 2020 to Sep 17, 202033
- Board memberBastiano Sanna Dec 3, 2020 to Aug 16, 202334
- Board memberChen Schor Jan 25, 2018 to now20
- Board memberJonathan Silverstein Jan 25, 2018 to Jun 5, 202035
- Board memberLynne Marie Sullivan Jan 25, 2018 to Jun 5, 202036
- Board memberPaul R. Fonteyne Jan 25, 2018 to Jun 5, 202037
- Board memberJeffrey Chodakewitz Aug 15, 2018 to now38
- Board memberMichael Grissinger Nov 6, 2018 to now39
Former names
- resTORbio, Inc.Oct 27, 2017 to Aug 21, 20202
Timeline
- Sep 28, 20268-K Regulation FD disclosure; Other events40
- Sep 8, 20268-K Regulation FD disclosure41
- Sep 1, 20268-K Regulation FD disclosure42
- Aug 5, 20268-K Results of operations43
- Jun 18, 20268-K Shareholder vote44
- May 13, 20268-K Results of operations45
- Apr 28, 20268-K Unregistered sale of shares46
- Mar 12, 20268-K Results of operations47
- Jan 7, 20268-K Regulation FD disclosure; Other events48
- Dec 29, 20258-K Bylaws or fiscal year changed; Other events49
- Dec 19, 20258-K Shareholder vote50
- Nov 5, 20258-K Results of operations51
- Apr 11, 2018New chief executive Chen Schor becomes CEO12
Calendar
Coming up
- Nov 4, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported ($4.64) a share, on Nov 5, 2025.52
When it reported results
- Aug 5, 2026Reported quarterly or annual results43
- May 13, 2026Reported quarterly or annual results45
- Mar 12, 2026Reported quarterly or annual results47
- Nov 5, 2025Reported quarterly or annual results51
- Aug 7, 2025Reported quarterly or annual results53
- May 6, 2025Reported quarterly or annual results54
- Mar 6, 2025Reported quarterly or annual results55
- Nov 6, 2024Reported quarterly or annual results56
Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar
Filings
370 filings to the SEC since October 2021: 6 annual reports, 15 quarterly reports, 81 major events, 167 insider forms, 46 large holders, 55 other. The latest 20:
- Sep 28, 20268-K EDGAR
- Sep 8, 20268-K EDGAR
- Sep 1, 20268-K EDGAR
- Aug 14, 2026SCHEDULE 13G/A EDGAR
- Aug 7, 20264 EDGAR
- Aug 5, 202610-Q EDGAR
- Aug 5, 20268-K EDGAR
- Jun 23, 20264 EDGAR
- Jun 23, 20264 EDGAR
- Jun 23, 20264 EDGAR
- Jun 23, 20264 EDGAR
- Jun 23, 20264 EDGAR
- Jun 23, 20264 EDGAR
- Jun 23, 20264 EDGAR
- Jun 23, 20264 EDGAR
- Jun 18, 20268-K EDGAR
- May 20, 202610-K/A EDGAR
- May 15, 2026SCHEDULE 13G/A EDGAR
- May 13, 2026S-8 POS EDGAR
- May 13, 202610-Q EDGAR
The 370 filings since October 2021 can be filtered by form type and year here when JavaScript is on.
Every filing from the last five years, summarized. The full record is on SEC EDGAR.
Insider trades
42 open-market trades by officers, directors and large owners since October 2021: 13 buys and 29 sales. Grants, option exercises and gifts are left out.
| Date | Who | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Apr 8, 2026 | OrbiMed Advisors Israel II Ltd10% owner | Sale | 72,939 | $6.42 | $468.1K | Form 4 |
| Apr 7, 2026 | OrbiMed Advisors Israel II Ltd10% owner | Sale | 31,719 | $6.52 | $206.8K | Form 4 |
| Feb 20, 2026 | RA Capital Healthcare Fund LP10% owner | Buy | 74,751 | $7.27 | $543.4K | Form 4 |
| Feb 19, 2026 | RA Capital Healthcare Fund LP10% owner | Buy | 74,268 | $7.21 | $535.5K | Form 4 |
| Feb 18, 2026 | RA Capital Healthcare Fund LP10% owner | Buy | 74,577 | $7.04 | $525.0K | Form 4 |
| Oct 8, 2025 | ORBIMED ADVISORS LLC10% owner | Buy | 5,000,000 | $1.00 | $5.0M | Form 4 |
| Jun 5, 2024 | Kauffman MichaelDirector | Sale | 5,900 | $1.43 | $8.4K | Form 4 |
| Jan 25, 2024 | OrbiMed Advisors Israel II Ltd10% owner | Buy | 3,125,000 | $2.40 | $7.5M | Form 4 |
| Jan 25, 2024 | GORDON CARL LDirector | Buy | 3,125,000 | $2.40 | $7.5M | Form 4 |
| Oct 2, 2023 | Schor ChenPresident & CEO | Buy | 5,500 | $1.33 | $7.3K | Form 4 |
| Sep 29, 2023 | Schor ChenPresident & CEO | Sale | 5,500 | $1.36 | $7.5K | Form 4 |
| Sep 28, 2023 | Schor ChenPresident & CEO | Buy | 5,500 | $1.42 | $7.8K | Form 4 |
| Sep 28, 2023 | Schor ChenPresident & CEO | Sale | 5,500 | $1.42 | $7.8K | Form 4 |
| Jun 30, 2023 | DUBIN STEVEDirector | Buy | 5,000 | $2.40 | $12.0K | Form 4 |
| Jun 27, 2023 | GORDON CARL LDirector | Buy | 875,000 | $2.09 | $1.8M | Form 4 |
| Jun 27, 2023 | ORBIMED ADVISORS LLC10% owner | Buy | 875,000 | $2.09 | $1.8M | Form 4 |
| Feb 15, 2023 | Healey DonChief Technology Officer | Sale | 4,533 | $7.57 | $34.3K | Form 4 |
| Feb 10, 2023 | Healey DonChief Technology Officer | Sale | 10,467 | $7.98 | $83.5K | Form 4 |
| Nov 10, 2022 | Aftab BlakeChief Scientific Officer | Sale | 6,967 | $21.00 | $146.3K | Form 4 |
| Nov 10, 2022 | Schor ChenPresident & CEO | Sale | 39,955 | $20.30 | $811.2K | Form 4 |
All 42 trades can be filtered by person here when JavaScript is on.
From Forms 4 filed with the SEC.
Major holders
Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.
- RA CAPITAL MANAGEMENT, L.P.SCHEDULE 13G/A, 7 filings Oct 17, 2022 to Aug 14, 202657
- Woodline Partners LPSCHEDULE 13G/A, 2 filings Feb 17, 2026 to May 15, 202658
- ORBIMED ADVISORS LLCSCHEDULE 13D/A, 6 filings Dec 14, 2021 to Apr 10, 202659
- TANG CAPITAL MANAGEMENT LLCSCHEDULE 13G/A, 3 filings Nov 14, 2024 to Feb 17, 202660
- Franklin Templeton InvestmentsSCHEDULE 13G, 1 filing Jan 29, 202661
- Commodore Capital LPSC 13G/A, 2 filings Jan 19, 2024 to Nov 14, 202462
- RTW INVESTMENTS, LPSC 13G/A, 4 filings Dec 15, 2021 to Nov 14, 202463
- Cowen Financial Products LLCSC 13G/A, 4 filings Apr 22, 2022 to Nov 13, 202464
- MILLENNIUM MANAGEMENT LLCSC 13G/A, 2 filings Feb 27, 2024 to Oct 8, 202465
- Morgan StanleySC 13G/A, 2 filings Feb 12, 2024 to Jul 10, 202466
- EcoR1 Capital, LLCSC 13G/A, 2 filings Dec 23, 2022 to Feb 14, 202467
- TANG CAPITAL PARTNERS LPSC 13G/A, 2 filings Mar 13, 2023 to Feb 14, 202468
- BlackRockSC 13G/A, 3 filings Feb 13, 2023 to Feb 7, 202469
- Carlyle GroupSC 13D/A, 2 filings Aug 11, 2022 to Feb 7, 202470
- State Street CorporationSC 13G/A, 2 filings Feb 3, 2023 to Jan 23, 202471
- Avidity Partners Management LPSC 13G/A, 2 filings Feb 14, 2022 to Feb 14, 202372
Executive pay
What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.
| Year | Executive | Age | Salary | Total pay |
|---|---|---|---|---|
| 2025 | Chen SchorMBA | $646.3K | $1.5M73 | |
| 2025 | Julia MaltzmanM.D. | 58 | $452.3K | $1.1M73 |
| 2025 | Blake AftabPh.D. | $484.7K | $915.5K73 | |
| 2024 | President and Chief Executive Officer | $627.6K | $4.6M73 | |
| 2024 | Chief Scientific Officer and Senior Vice President | $470.7K | $1.5M73 |
Held by these funds
The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 55. Change is in shares since the quarter before.
13F reports cover disclosed long positions in U.S. stocks only.
SEC filer profile
How Adicet Bio, Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.
- Name on EDGARAdicet Bio, Inc.1
- CIK0001720580
- Employer ID (EIN)81-33052773
- Filer statusNon-accelerated filer not an emerging growth company; a smaller reporting company; not a shell company3
- Incorporated inDelaware3
- Fiscal year endsDecember 261
- Industry code (SIC)2834 Pharmaceutical Preparations1
- SEC reviewing officeOffice of Life Sciences, Division of Corporation Finance1
- Business address131 Dartmouth Street, 3Rd Floor, Boston, MA 021161
- Phone617-482-23331
- Shares outstanding9,361,490 as of Aug 3, 202611
- Public float$50.5M as of Jun 30, 20253
- AuditorKPMG LLP, Boston, Massachusetts PCAOB ID 185; no auditor attestation of internal control over financial reporting3
- On EDGAR sinceOct 27, 20171
- Filings678 in all: 4 (246), 8-K (148), 3 (34), SC 13G/A (28), 10-Q (26), SC 13G (21), 424B5 (14), S-8 (14)1
All 45 form types
SC 13D/A (14), CORRESP (12), UPLOAD (10), 10-K (9), DEF 14A (9), DEFA14A (9), EFFECT (8), S-3 (6), S-8 POS (6), SCHEDULE 13G/A (6), 144 (5), 425 (5), SC 13D (5), 4/A (4), ARS (4), 10-K/A (3), S-4/A (3), 3/A (2), 424B3 (2), 5 (2), 8-K/A (2), DRS/A (2), DRSLTR (2), PRE 14A (2), SCHEDULE 13D/A (2), SCHEDULE 13G (2), 424B4 (1), 8-A12B (1), CERT (1), CT ORDER (1), DEFR14A (1), DRS (1), S-1 (1), S-1/A (1), S-3/A (1), S-3MEF (1), S-4 (1)
- Latest filingsAnnual report (10-K) Mar 12, 2026
Quarterly report (10-Q) Aug 5, 2026
Proxy statement (DEF 14A) Apr 29, 2026
Latest 8-K (8-K) Sep 28, 2026
Securities registered for trading
| Class | Symbol | Exchange |
|---|---|---|
| Common Stock, par value $0.0001 per share | ACET | NASDAQ |
From the cover page of the 10-K filed Mar 12, 2026 (Section 12(b) of the Exchange Act).3
Risk factors and legal proceedings
The risks Adicet Bio, Inc. names in Item 1A of its 10-K filed Mar 12, 2026: 77 risks under these headings, as written.3
- Risks Related to Our Business and Industry
- We have a limited operating history and face significant challenges and expenses as we build our capabilities.
- We have incurred net losses since our inception and anticipate that we will incur substantial net losses in the future.
- Our business is highly dependent on the success of prula-cel. If we are unable to obtain regulatory approval for prula-cel in one or more indications and effectively commercialize this product candidate for the treatment of patients in indications for which we receive approval (if any), our business would be significantly harmed.
- Our gamma delta T cell candidates represent a novel approach to the treatment of autoimmune diseases and cancer indications that creates significant challenges for us.
- Our product candidates are based on novel technologies, which makes it difficult to predict the likely success of such product candidates and the time and cost of product candidate development and obtaining regulatory approval.
- Our product candidates may cause undesirable side effects or have other properties that could halt our clinical development, prevent our regulatory approval, limit our commercial potential or result in significant negative consequences.
- If we are required by the FDA to obtain approval of a companion diagnostic in connection with approval of any of our product candidates and we do not obtain, or face delays in obtaining, FDA approval of such companion diagnostic, we will not be able to commercialize such product candidate and our ability to generate revenue will be materially impaired.
- Our clinical trials may fail to demonstrate the safety and efficacy of any of our product candidates, which would prevent or delay regulatory approval and commercialization.
- We may not be able to file IND applications, or comparable regulatory submissions outside the United States, to commence additional clinical trials on the timelines we expect, and even if we are able to, the FDA or analogous regulatory authorities may not permit us to proceed.
- We may encounter substantial delays in our clinical trials, or may not be able to conduct our trials on the timelines we expect.
- Monitoring safety of patients receiving our product candidates is challenging, which could adversely affect our ability to obtain regulatory approval and commercialize.
The other 66 risks
- If we encounter difficulties enrolling patients in our clinical trials, our clinical development activities could be delayed or otherwise adversely affected.
- Clinical trials are expensive, time-consuming and difficult to design and implement.
- A variety of risks associated with conducting research and clinical trials abroad and marketing our product candidates internationally could materially adversely affect our business.
- We have conducted, and may in the future conduct, certain clinical trials for our product candidates outside of the U.S. However, the FDA and comparable foreign regulatory authorities may not accept data from such trials, in which case our development plans will be delayed, which could materially harm our business.
- The market opportunities for our product candidates may be limited to those patients who are ineligible for or have failed prior treatments and may be small.
- If we fail to develop additional product candidates, our commercial opportunity will be limited.
- We currently have no marketing and sales organization and as a company have no experience in marketing products. If we are unable to establish marketing and sales capabilities or enter into agreements with third parties to market and sell our product candidates, if approved, we may not be able to generate product revenue.
- We face significant competition from other biotechnology and pharmaceutical companies, and our operating results will suffer if we fail to compete effectively.
- Although we have commenced manufacturing operations at our manufacturing facility, we currently depend on the ability of our third-party suppliers and manufacturers with whom we contract to perform adequately, particularly with respect to the timely production and delivery of our product candidates, including prula-cel. This reliance on third parties increases the risk that we will not have sufficient quantities of our product candidates or products or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.
- We are highly dependent on our key personnel, and if we are not successful in attracting and retaining highly qualified personnel, we may not be able to successfully implement our business strategy.
- We will need substantial additional financing to develop our product candidates and implement our operating plans. If we fail to obtain additional financing, we may be unable to complete the development and commercialization of our product candidates.
- We have grown rapidly and will need to continue to grow the size of our organization, and it may experience difficulties in managing this growth.
- We may form or seek strategic alliances or enter into additional licensing arrangements in the future, and we may not realize the benefits of such alliances or licensing arrangements.
- Our cash preservation activities, including the workforce reduction plan, may not result in anticipated savings, could result in total costs and expenses that are greater than expected and could disrupt our business.
- The pharmaceutical industry in China is highly regulated and such regulations, including the Foreign Investment Law and the “negative list,” are subject to change which may affect development approval and commercialization of our product candidates.
- The uncertainties in the PRC legal system regarding the Foreign Investment Law may subject our contractual arrangements to different interpretations or enforcement challenges, or subject us to severe penalties or force us to relinquish our interests in our operations.
- Changes in U.S. and Chinese regulations may impact our business, financial condition, and our operating results.
- We may be restricted from transferring our scientific data abroad.
- Compliance with China’s Data Security Law, Cyber Security Law, Personal Information Protection Law, regulations and guidelines relating to the multi-level protection scheme on cyber security and any other future laws and regulations may entail significant expenses and could affect our business.
- Pharmaceutical companies operating in China are required to comply with extensive regulations and hold a number of permits and licenses to carry on their business. Our ability to obtain and maintain these regulatory approvals is uncertain, and future government regulation may place additional burdens on our current and planned operations in China.
- We may be exposed to liabilities under the FCPA, and similar anti-corruption and anti-bribery laws of China and other countries in which we operate, as well as U.S. and certain foreign export controls, trade sanctions and import laws and regulations. Compliance with these legal requirements could limit our ability to compete in foreign markets and any determination that we have violated these laws could have a material adverse effect on our business or our reputation.
- Any failure to comply with Chinese regulations regarding the registration requirements for our employee equity incentive plans may subject us to fines and other legal or administrative sanctions, which could adversely affect our business, financial condition and results of operations.
- Business disruptions, including armed conflicts, could substantially delay our clinical trials or seriously harm our future revenue and financial condition and increase our costs and expenses.
- Global conflicts may increase the likelihood of supply or clinical trial interruptions which could impact our ability to find the materials we need to make our product candidates or conduct our clinical trials.
- Changes in the political and economic policies or in relations between China and the United States may affect our business, financial condition, and results of operations.
- Inadequate funding and/or staffing for the FDA, the SEC and other government agencies, including from government shut downs, or other disruptions to these agencies’ operations, could hinder their ability to hire and retain key leadership and other personnel, prevent new products and services from being developed or commercialized in a timely manner or otherwise prevent those agencies from performing normal business functions on which the approval of our product candidates rely, which would negatively impact our business.
- Significant political, trade, regulatory developments, and other circumstances beyond our control, could have a material adverse effect on our financial condition or results of operations.
- Our relationships with customers, physicians including clinical investigators, CROs and third-party payors are subject, directly or indirectly, to federal and state healthcare fraud and abuse laws, false claims laws, health information privacy and security laws, transparency laws, government price reporting and other healthcare laws and regulations. If we or our employees, independent contractors, consultants, commercial partners, vendors, or other agents violate these laws, we could face substantial penalties.
- Data protection, privacy and similar laws restrict access, use, and disclosure of information, and failure to comply with or adapt to changes in these laws could materially and adversely harm our business.
- Artificial intelligence presents risks and challenges that can impact our business including by posing security risks to our confidential information, proprietary information, and personal data.
- Adverse developments affecting the financial services industry, such as actual events or concerns involving liquidity, defaults or non-performance by financial institutions or transactional counterparties, could adversely affect our current and projected business operations and its financial condition and results of operations.
- We have in the past failed and may in the future fail to achieve and maintain effective internal control over financial reporting could harm our business and negatively impact the value of our common stock.
- We have previously identified material weaknesses in our internal control over financial reporting and may identify additional material weaknesses in the future. If we fail to remediate a material weakness or if we otherwise fail to establish and maintain effective control over financial reporting, it may adversely affect our ability to accurately and timely report our financial results, and may adversely affect investor confidence and business operations.
- Our ability to utilize our net operating loss carryforwards and certain other tax attributes may be limited.
- The U.S. Congress, the Trump administration, or any new administration may make substantial changes to fiscal, tax, and other federal policies that may adversely affect our business.
- If our collaboration with Regeneron is terminated, or if Regeneron materially breaches its obligations thereunder, our business, prospects, operating results, and financial condition would be materially harmed.
- Our existing and future collaborations will be important to our business. If we are unable to maintain any of these collaborations, or if these collaborations are not successful, our business could be adversely affected.
- We are subject to certain exclusivity obligations under our agreement with Regeneron.
- We rely and will continue to rely on third parties to conduct our clinical trials. If these third parties do not successfully carry out their contractual duties or meet expected deadlines, we may not be able to obtain regulatory approval of or commercialize our product candidates.
- We currently rely on third parties to manufacture our clinical product supplies, and we may have to rely on third parties to produce and process our product candidates, if approved.
- Cell-based therapies rely on the availability of specialty raw materials, which may not be available to us on acceptable terms or at all.
- If we or our third-party suppliers use hazardous, non-hazardous, biological or other materials in a manner that causes injury or violates applicable law, we may be liable for damages.
- Our internal computer systems, or those used by our CROs or other contractors or consultants, may fail or suffer security breaches, incidents, or compromises.
- We may not realize the benefits of acquired assets or other strategic transactions.
- Risks Related to Government Regulation
- The FDA regulatory approval process is lengthy and time-consuming, and we may experience significant delays in the clinical development and regulatory approval of our product candidates.
- We expect the product candidates we develop will be regulated as biological products, or biologics, and therefore they may be subject to competition from biosimilar products.
- The regulatory landscape that will govern our product candidates is uncertain; regulations relating to more established cell therapy products are still developing, and changes in regulatory requirements could result in delays or discontinuation of development of our product candidates or unexpected costs in obtaining regulatory approval.
- The FDA may disagree with our regulatory plan and we may fail to obtain regulatory approval of our product candidates.
- We may seek orphan drug designation for some or all of our product candidates across various indications, but we may be unable to obtain such designations or to maintain the benefits associated with orphan drug designation, including market exclusivity, which may cause our revenue, if any, to be reduced.
- A fast track designation by the FDA, even if granted for any of our product candidates, may not lead to a faster development or regulatory review or approval process, and does not increase the likelihood that our product candidates will receive marketing approval.
- Regenerative Medicine Advanced Therapy (RMAT) designation, even if granted for any of our product candidates, may not lead to a faster development or regulatory review or approval process and it does not increase the likelihood that our product candidates will receive marketing approval.
- Obtaining and maintaining regulatory approval of our product candidates in one jurisdiction does not mean that we will be successful in obtaining regulatory approval of our product candidates in other jurisdictions.
- Even if we receive regulatory approval of our product candidates, we will be subject to ongoing regulatory obligations and continued regulatory review, which may result in significant additional expense and we may be subject to penalties if we fail to comply with regulatory requirements or experience unanticipated problems with our product candidates.
- Even if we obtain regulatory approval of our product candidates, the products may not gain market acceptance among physicians, patients, hospitals, cancer treatment centers and others in the medical community, adversely affecting our ability to achieve our commercial and financial projections.
- Coverage and reimbursement may be limited or unavailable in certain market segments for our product candidates, which could make it difficult for us to sell our product candidates, if approved, profitably.
- The advancement of healthcare reform may negatively impact our ability to sell our product candidates, if approved, profitably.
- Risks Related to Intellectual Property
- If our efforts to protect the proprietary nature of the intellectual property related to our technologies are not adequate, we may not be able to compete effectively in our market.
- We may not be successful in obtaining or maintaining necessary rights to product components and processes for our development pipeline through acquisitions and in-licenses.
- We may be involved in lawsuits to protect or enforce our patents or the patents of our licensors, which could be expensive, time-consuming and unsuccessful.
- The lives of our patents may not be sufficient to effectively protect our products and business.
- We may be subject to claims challenging the inventorship of our patents and other intellectual property.
- Issued patents covering our product candidates could be found unpatentable, invalid or unenforceable if challenged in court or the USPTO.
- We depend on intellectual property licensed from third parties and termination of any of these licenses could result in the loss of significant rights, which would harm our business.
- Confidentiality agreements with employees and third parties may not prevent unauthorized disclosure of trade secrets and other proprietary information.
- Third-party claims of intellectual property infringement may prevent or delay our product discovery and development efforts.
- Changes in United States patent law could diminish the value of patents in general, thereby impairing our ability to protect our products.
Legal proceedings
We are not currently subject to any material legal proceedings. From time to time, we may be subject to various legal proceedings and claims that arise in the ordinary course of our business activities. Although the results of litigation and claims cannot be predicted with certainty, as of the date of this report, we do not believe we are party to any claim or litigation the outcome of which, if determined adversely to us, would individually or in the aggregate be reasonably expected to have a material adverse effect on our business. Regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.
The opening of Item 3, Legal Proceedings.3
Sources
The numbers on this page point here. Each one links to the record it came from.
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- 12SEC EDGARChen Schor, Chief executive officer
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- 18SEC EDGARStewart Abbot, Officer
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- 20SEC EDGARChen Schor, Officer
- 21SEC EDGARJoan Mannick, Chief Medical Officer
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- 24SEC EDGARLloyd Klickstein, Board member
- 25SEC EDGARKatie Peng, Board member
- 26SEC EDGARAndrew Sinclair, Board member
- 27SEC EDGARMichael Kauffman, Board member
- 28SEC EDGARAya Jakobovits, Board member
- 29SEC EDGARCarl L. Gordon, Board member
- 30SEC EDGARErez Chimovits, Board member
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- 32SEC EDGARSteve Dubin, Board member
- 33SEC EDGARYair Chaim Schindel, Board member
- 34SEC EDGARBastiano Sanna, Board member
- 35SEC EDGARJonathan Silverstein, Board member
- 36SEC EDGARLynne Marie Sullivan, Board member
- 37SEC EDGARPaul R. Fonteyne, Board member
- 38SEC EDGARJeffrey Chodakewitz, Board member
- 39SEC EDGARMichael Grissinger, Board member
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- 41SEC EDGARRegulation FD disclosure
- 42SEC EDGARRegulation FD disclosure
- 43SEC EDGARResults of operations
- 44SEC EDGARShareholder vote
- 45SEC EDGARResults of operations
- 46SEC EDGARUnregistered sale of shares
- 47SEC EDGARResults of operations
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- 50SEC EDGARShareholder vote
- 51SEC EDGARResults of operations
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