ATRA on Nasdaq
Atara Biotherapeutics, Inc.
Clinical-stage biotechnology company based in South San Francisco, founded in 20121
In its 2026 annual report the company says: “Atara Biotherapeutics is a leader in T-cell immunotherapy, leveraging its novel allogeneic Epstein-Barr virus (EBV) T-cell platform to develop transformative therapies for patients with cancer and autoimmune disease.”6 Its shares trade on Nasdaq under the symbol ATRA.1
Price unavailable
Last updated Oct 21, 2026.
Overview
Compare with Monte Rosa Therapeutics, Acorda Therapeutics or Agenus, or pick any stock.
- TickerATRA on Nasdaq1
- IndustryCellular therapy and transplantation, autoimmune disease, biotechnology, multiple sclerosis, oncology1
- HeadquartersSouth San Francisco1
- Websitewww.atarabio.com
- Legal formDelaware corporation1
- Incorporated inDE4
- Business address1280 Rancho Conejo Blvd, Thousand Oaks, Ca 913204
- Filer categoryNon-accelerated filer, Smaller reporting company4
- LEI549300WBXUXZRE03MS383
- StatusActive3
- LEI statusLapsed (not renewed)3
- Registered addressC/O Incorporating Services, Ltd., 19901 Dover, United States3
- Registered withDivision of Corporations, Department of State, 52021883
See how the biggest companies compare on our leaderboards
Atara Biotherapeutics is a leader in T-cell immunotherapy, leveraging its novel allogeneic Epstein-Barr virus (EBV) T-cell platform to develop transformative therapies for patients with cancer and autoimmune disease. Tab-cel ® (tabelecleucel), has received marketing authorization approval under the proprietary name Ebvallo™ by the European Commission (EC) for commercial sale and use in the European Economic Area (EEA), by the Medicines and Healthcare products Regulatory Agency (MHRA) for commercial sale and use in the United Kingdom (UK) and by Swissmedic for commercial sale and use in Switzerland. We partnered with Pierre Fabre Medicament (Pierre Fabre) for commercialization of tab-cel in Europe and potential commercialization, if approved, worldwide, including in the U.S. Tab-cel is currently in Phase 3 development in the U.S. for patients with EBV- associated post-transplant lymphopro…6 From its latest annual report
Financials
From the company’s reports to the SEC. Every number links to the filing it came from.
Key numbers, fiscal 2025
Where the money goes
Where each dollar of revenue went, fiscal 2025
- Research and development31¢$37.4M
- Other costs39¢$46.8M
- Interest3¢$3.8M
- Income tax0¢$31.0K
- Profit27¢$32.7M
Out of $120.8M in revenue.7
Financial statements
Every line of the income statement as filed: the last 2 fiscal years, latest first.7
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Commercialization revenue | $120.8M | $128.9M |
| Total revenue | $120.8M | $128.9M |
| Cost of commercialization revenue | $21.2M | $21.0M |
| Research and development expenses | $37.4M | $151.5M |
| General and administrative expenses | $26.3M | $39.9M |
| Total costs and operating expenses | $84.9M | $212.4M |
| Loss from operations | $35.9M | -$83.4M |
| Interest income | $683.0K | $2.1M |
| Interest expense | -$3.8M | -$4.6M |
| Other income (expense), net: | -$34.0K | $528.0K |
| Total other income (expense), net | -$3.1M | -$2.0M |
| Loss before provision for (benefit from) income taxes | $32.7M | -$85.4M |
| Provision for (benefit from) income taxes | $31.0K | -$12.0K |
| Net loss | $32.7M | -$85.4M |
| Unrealized gain (loss) on available-for-sale securities | -$7.0K | $212.0K |
| Comprehensive loss | $32.7M | -$85.2M |
| Basis net loss per common share | $2.61 | -$11.41 |
| Diluted net loss per common share | $2.57 | -$11.41 |
| Basic weighted-average shares outstanding | 12.5M shares | 7.5M shares |
| Diluted weighted-average shares outstanding | 12.7M shares | 7.5M shares |
No quarter-by-quarter statement was filed.
Every line of the balance sheet as filed: the last 3 fiscal years (annual) or 3 quarters (quarterly), latest first.7
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $8.5M | $25.0M | |
| Short-term investments | $0 | $17.5M | |
| Restricted cash | $0 | $146.0K | |
| Accounts receivable | $1.3M | $1.5M | |
| Inventories | $0 | $10.7M | |
| Other current assets | $2.5M | $10.1M | |
| Total current assets | $12.2M | $64.9M | |
| Property and equipment, net | $73.0K | $1.3M | |
| Operating lease assets | $7.1M | $39.8M | |
| Other assets | $886.0K | $3.1M | |
| Total assets | $20.2M | $109.1M | |
| Accounts payable | $127.0K | $4.4M | |
| Accrued compensation | $1.3M | $6.6M | |
| Accrued research and development expenses | $82.0K | $8.0M | |
| Deferred revenue | $716.0K | $95.1M | |
| Liability related to the sale of future revenues - current portion | $9.8M | $382.0K | |
| Other current liabilities | $3.0M | $20.2M | |
| Total current liabilities | $14.9M | $134.6M | |
| Operating lease liabilities - long-term | $9.3M | $29.9M | |
| Liability related to the sale of future revenues - long-term | $32.7M | $38.6M | |
| Other long-term liabilities | $1.8M | $3.3M | |
| Total liabilities | $58.7M | $206.4M | |
| Common stock - $0.0001 par value, 500,000 shares authorized as of December 31, 2025 and 2024, respectively; 7,324 and 5,859 shares issued and outstanding as of December 31, 2025 and 2024, respectively | $1.0K | $1.0K | |
| Additional paid-in capital | $2.0B | $2.0B | |
| Accumulated other comprehensive income | $1.0K | $8.0K | |
| Accumulated deficit | -$2.0B | -$2.1B | |
| Total stockholders' equity (deficit) | -$38.5M | -$97.3M | $99.2M |
| Total liabilities and stockholders' equity (deficit) | $20.2M | $109.1M | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, shares authorized | 500.0M shares | 500.0M shares | |
| Common stock, shares issued | 7.3M shares | 5.9M shares | |
| Common stock, shares outstanding | 7.3M shares | 5.9M shares |
| Period ending | 2025-12-31 | 2024-12-31 | 2023-12-31 |
|---|---|---|---|
| Cash and cash equivalents | $8.5M | $25.0M | |
| Short-term investments | $0 | $17.5M | |
| Restricted cash | $0 | $146.0K | |
| Accounts receivable | $1.3M | $1.5M | |
| Inventories | $0 | $10.7M | |
| Other current assets | $2.5M | $10.1M | |
| Total current assets | $12.2M | $64.9M | |
| Property and equipment, net | $73.0K | $1.3M | |
| Operating lease assets | $7.1M | $39.8M | |
| Other assets | $886.0K | $3.1M | |
| Total assets | $20.2M | $109.1M | |
| Accounts payable | $127.0K | $4.4M | |
| Accrued compensation | $1.3M | $6.6M | |
| Accrued research and development expenses | $82.0K | $8.0M | |
| Deferred revenue | $716.0K | $95.1M | |
| Liability related to the sale of future revenues - current portion | $9.8M | $382.0K | |
| Other current liabilities | $3.0M | $20.2M | |
| Total current liabilities | $14.9M | $134.6M | |
| Operating lease liabilities - long-term | $9.3M | $29.9M | |
| Liability related to the sale of future revenues - long-term | $32.7M | $38.6M | |
| Other long-term liabilities | $1.8M | $3.3M | |
| Total liabilities | $58.7M | $206.4M | |
| Common stock - $0.0001 par value, 500,000 shares authorized as of December 31, 2025 and 2024, respectively; 7,324 and 5,859 shares issued and outstanding as of December 31, 2025 and 2024, respectively | $1.0K | $1.0K | |
| Additional paid-in capital | $2.0B | $2.0B | |
| Accumulated other comprehensive income | $1.0K | $8.0K | |
| Accumulated deficit | -$2.0B | -$2.1B | |
| Total stockholders' equity (deficit) | -$38.5M | -$97.3M | $99.2M |
| Total liabilities and stockholders' equity (deficit) | $20.2M | $109.1M | |
| Common stock, par value | $0.00 | $0.00 | |
| Common stock, shares authorized | 500.0M shares | 500.0M shares | |
| Common stock, shares issued | 7.3M shares | 5.9M shares | |
| Common stock, shares outstanding | 7.3M shares | 5.9M 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.7
| Period ending | 2025-12-31 | 2024-12-31 |
|---|---|---|
| Net income (loss) | $32.7M | -$85.4M |
| Stock-based compensation expense | $9.8M | $27.0M |
| Non-cash operating lease expense | $5.0M | $12.1M |
| Depreciation and amortization expense | $2.1M | $5.1M |
| Accretion of liability related to sale of future revenues | $3.6M | $4.1M |
| Amortization (accretion) of investment premiums (discounts) | $259.0K | -$240.0K |
| Loss on impairment of lease right-of-use asset | $4.1M | $0 |
| Gain on derecognition of lease liabilities upon contract assignment | -$3.8M | $0 |
| Other non-cash items, net | $94.0K | -$402.0K |
| Accounts receivable | $229.0K | $32.6M |
| Inventories | $10.7M | -$4.4M |
| Other current assets | $6.2M | -$1.2M |
| Other assets | $15.0K | $19.0K |
| Accounts payable | -$4.2M | $687.0K |
| Accrued compensation | -$5.3M | -$4.9M |
| Accrued research and development expenses | -$7.9M | -$9.4M |
| Other current liabilities | -$4.5M | -$12.5M |
| Deferred revenue | -$94.4M | -$20.3M |
| Operating lease liabilities | -$5.5M | -$11.1M |
| Other long-term liabilities | $1.0K | -$462.0K |
| Net cash used in operating activities | -$50.9M | -$68.7M |
| Purchases of short-term investments | -$7.9M | -$19.7M |
| Proceeds from maturities and sales of short-term investments | $25.1M | $28.5M |
| Purchases of property and equipment | $0 | -$246.0K |
| Proceeds from sale of property and equipment | $948.0K | $0 |
| Net cash provided by investing activities | $18.1M | $8.6M |
| Proceeds from sale of common stock and pre-funded warrants in registered direct offerings, net | $14.8M | $50.6M |
| Proceeds from issuance of common stock through ATM facilities, net | $1.5M | $9.3M |
| Proceeds from employee stock awards | $35.0K | $230.0K |
| Principal payments on finance lease obligations | -$250.0K | -$892.0K |
| Other financing activities, net | -$1.0K | -$7.0K |
| Net cash provided by financing activities | $16.1M | $59.3M |
| Decrease in cash, cash equivalents and restricted cash | -$16.7M | -$811.0K |
| Cash paid for interest | $286.0K | $685.0K |
| Cash paid for income taxes | $190.0K | $24.0K |
No quarter-by-quarter statement was filed.
Corporate structure
Atara Biotherapeutics, Inc. sits at the top of its group. 2 entities, 2 countries on record. Switch between the flow chart and the network, and select any entity to see its details.
Major holders of Atara Biotherapeutics, Inc.
- Point72 Asset Management, L.P. Filed SCHEDULE 13G/A on Atara Biotherapeutics, Inc., latest Aug 14, 2026 (5 filings since Dec 21, 2021)
- Redmile Group, LLC Filed SCHEDULE 13D/A on Atara Biotherapeutics, Inc., latest Jul 24, 2026 (9 filings since Feb 14, 2022)
- Adage Capital Management, L.P. Filed SCHEDULE 13G on Atara Biotherapeutics, Inc., latest May 13, 2026
- Panacea Innovation Ltd Filed SCHEDULE 13D/A on Atara Biotherapeutics, Inc., latest May 11, 2026 (5 filings since Feb 6, 2025)
- EcoR1 Capital, LLC Filed SCHEDULE 13G/A on Atara Biotherapeutics, Inc., latest May 7, 2026 (4 filings since Nov 21, 2023)
- Adiumentum Capital Fund I LP Filed SCHEDULE 13D/A on Atara Biotherapeutics, Inc., latest May 16, 2025 (3 filings since May 22, 2024)
- CITADEL ADVISORS LLC Filed SC 13G/A on Atara Biotherapeutics, Inc., latest Nov 14, 2024 (2 filings since Mar 18, 2024)
- VANGUARD GROUP INC Filed SC 13G/A on Atara Biotherapeutics, Inc., latest Nov 12, 2024 (5 filings since Feb 9, 2022)
- BlackRock Filed SC 13G/A on Atara Biotherapeutics, Inc., latest Jul 8, 2024 (4 filings since Feb 3, 2022)
- MAVERICK CAPITAL LTD Filed SC 13G/A on Atara Biotherapeutics, Inc., latest Feb 14, 2024 (3 filings since Mar 11, 2022)
- WASATCH ADVISORS LP Filed SC 13G/A on Atara Biotherapeutics, Inc., latest Feb 9, 2024 (2 filings since Feb 8, 2023)
- Goldman Sachs Filed SC 13G/A on Atara Biotherapeutics, Inc., latest Feb 6, 2024 (2 filings since Feb 7, 2023)
- Atara Biotherapeutics, Inc. Brisbane, California, United States
- Atara Biotherapeutics Ireland Limited Subsidiary · Ireland
Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.
What it owns
What Atara Biotherapeutics, 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 | $286.0K7 Dec 31, 2025 | $18.6M7 Dec 31, 2024 | −98.5% |
| Accumulated depreciation | $213.0K7 Dec 31, 2025 | $17.3M7 Dec 31, 2024 | −98.8% |
| Property and equipment, net | $73.0K7 Dec 31, 2025 | $1.3M7 Dec 31, 2024 | −94.4% |
| Operating-lease assets (leased space) | $7.1M7 Dec 31, 2025 | $39.8M7 Dec 31, 2024 | −82.3% |
Investments
| Item | Latest | A year before | Change |
|---|---|---|---|
| Cash and cash equivalents | $8.5M7 Dec 31, 2025 | $25.0M7 Dec 31, 2024 | −66.1% |
| Marketable securities, current | $07 Dec 31, 2025 | $17.5M7 Dec 31, 2024 | −100.0% |
| Debt securities available for sale | $8.2M7 Dec 31, 2025 | $41.2M7 Dec 31, 2024 | −80.0% |
Inventory
| Item | Latest | A year before | Change |
|---|---|---|---|
| Inventory, total | $07 Dec 31, 2025 | $10.7M7 Dec 31, 2024 | −100.0% |
| Raw materials | $07 Dec 31, 2025 | $964.0K7 Dec 31, 2024 | −100.0% |
| Work in process | $07 Dec 31, 2025 | $9.7M7 Dec 31, 2024 | −100.0% |
Properties, in its own words
Our corporate headquarters are located in Thousand Oaks, California (ARC) and consists of approximately 12,750 square feet of office, lab and warehouse space under a lease agreement that expires in February 2032.
The initial 10.5-year term of the ARC lease commenced in August 2021. In August 2025, we entered into an amendment to the ARC lease which reduced our square footage to 12,750 square feet and terminated our option to extend the lease.
The rest of Item 2
In April 2022, we assigned our lease of approximately 90,580 square feet of office, lab and cellular therapy manufacturing space in Thousand Oaks, California, which expires in April 2033, to FDB as part of the Fujifilm Transaction. We remain joint and severally liable for obligations related to the assigned lease.
Item 2 of the 10-K filed Mar 16, 2026.6
Leadership
Who has led Atara Biotherapeutics, Inc., and when. Pick a name to see everywhere that person has worked.
Chief executive
President
Chief financial officer
Chief operating officer
- Chief executive officerPascal Touchon Jun 25, 2019 to Aug 20, 202415
- Chief executive officerIsaac E. Ciechanover Oct 15, 2014 to May 31, 201916
- PresidentPascal Touchon Jun 25, 2019 to Aug 20, 202415
- Chief financial officerKevin G. Sarney Jul 6, 2026 to now17
- Chief financial officerEric J. Hyllengren Apr 7, 2023 to Jul 6, 202618
- Chief financial officerUtpal Koppikar Jun 7, 2018 to Mar 6, 202319
- Chief operating officerEric J. Hyllengren Nov 20, 2024 to now20
- Chief operating officerGad Soffer Oct 15, 2014 to Nov 22, 201621
Board members and other officers (32)
- Chief Accounting OfficerYanina Grant-Huerta Apr 10, 2025 to now22
- EVP, Global Head RA & QualityJill Henrich Jun 9, 2023 to now23
- EVP, Chief Medical OfficerManher Joshi Jun 9, 2023 to Nov 20, 202324
- EVP, Chief Technical OfficerCharlene A. Banard Dec 16, 2022 to May 18, 202325
- Chief Commercial OfficerKristin Yarema Feb 19, 2020 to Mar 3, 202226
- SVP, GC & SecretaryAmar Murugan Apr 21, 2020 to Mar 6, 202327
- EVP, Head of R&DJakob Dupont May 19, 2020 to Mar 6, 202328
- Former EVP, GC & Sec.Heather D. Turner Feb 12, 2018 to Feb 12, 201829
- Global Head of R&DDietmar Berger May 7, 2018 to May 8, 201930
- EVP & Chief Strategy OfficerGad Soffer Feb 8, 2017 to Sep 25, 201831
- Chief Tech. Operations OfficerJoe Newell Apr 3, 2017 to Nov 18, 202132
- SVP, Head of Global CommercialDerrell Porter May 11, 2017 to Mar 27, 201933
- Chief Medical OfficerChristopher Haqq Oct 15, 2014 to Feb 19, 201934
- Chief R & QA OfficerMitchall G. Clark Oct 15, 2014 to May 21, 201835
- Board memberBrian N. Cherry Jun 15, 2026 to now36
- Board memberJeremy Green May 23, 2025 to now37
- Board memberNachiappan Subramanian May 23, 2025 to now38
- Board memberGregory Austin Ciongoli Sep 5, 2024 to now39
- Board memberAmeet Mallik Aug 10, 2021 to now40
- Board memberRonald C. Renaud Jr. Apr 30, 2020 to Jun 27, 202241
- Board memberMaria Grazia Roncarolo May 12, 2020 to now42
- Board memberPascal Touchon Jun 25, 2019 to now15
- Board memberRoy D. Baynes Sep 12, 2018 to Jun 27, 202243
- Board memberEric Dobmeier Mar 30, 2015 to Nov 14, 202344
- Board memberWilliam K. Heiden Nov 25, 2015 to now45
- Board memberBeth C. Seidenberg Oct 15, 2014 to Jun 2, 202346
- Board memberCarol Giltner Gallagher Oct 15, 2014 to now47
- Board memberEckard Weber Oct 15, 2014 to Jan 21, 201548
- Board memberIsaac E. Ciechanover Oct 15, 2014 to May 31, 201916
- Board memberJoel S. Marcus Oct 15, 2014 to Mar 19, 201949
- General counselAmar Murugan May 18, 2023 to Aug 20, 202450
- General counselHeather D. Turner Jul 7, 2015 to Feb 8, 201851
Subsidiaries and ownership
Subsidiaries (Exhibit 21)
- Atara Biotherapeutics Ireland Limited Ireland5
The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.
Timeline
- Aug 12, 20268-K Results of operations52
- Jun 26, 20268-K Executive or director change53
- Jun 12, 20268-K Executive or director change; Shareholder vote54
- May 12, 20268-K Financial statements and exhibits55
- May 7, 20268-K Other events56
- May 1, 20268-K Listing notice or transfer57
- Mar 16, 20268-K Results of operations58
- Mar 12, 20268-K Other events59
- Mar 3, 20268-K Other events60
- Feb 23, 20268-K Entered a material agreement; Unregistered sale of shares; Other events61
- Jan 12, 20268-K Results of operations; Other events62
- Jan 2, 20268-K Entered a material agreement63
- Jun 25, 2019New chief executive Pascal Touchon becomes CEO15
- Oct 15, 2014New chief executive Isaac E. Ciechanover becomes CEO16
- 2012Founded Founded1
Calendar
Coming up
- Nov 11, 2026Reports results for the quarter ending Sep/2026 A year earlier it reported ($0.32) a share, on Nov 12, 2025.64
When it reported results
- Aug 12, 2026Reported quarterly or annual results52
- Mar 16, 2026Reported quarterly or annual results58
- Jan 12, 2026Reported quarterly or annual results62
- Nov 12, 2025Reported quarterly or annual results65
- Aug 11, 2025Reported quarterly or annual results66
- Jul 14, 2025Reported quarterly or annual results67
- May 15, 2025Reported quarterly or annual results68
- Mar 7, 2025Reported quarterly or annual results69
Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar
Filings
386 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 75 major events, 157 insider forms, 55 large holders, 79 other. The latest 20:
- Sep 4, 20264 EDGAR
- Aug 26, 2026144 EDGAR
- Aug 26, 20264 EDGAR
- Aug 14, 2026SCHEDULE 13G/A EDGAR
- Aug 12, 202610-Q EDGAR
- Aug 12, 20268-K EDGAR
- Jul 24, 20264 OWNERSHIP DOCUMENT EDGAR
- Jul 24, 2026SCHEDULE 13D/A EDGAR
- Jul 6, 20263 EDGAR
- Jun 26, 20268-K EDGAR
- Jun 15, 20264 EDGAR
- Jun 15, 20263 EDGAR
- Jun 12, 2026S-8 REGISTRATION STATEMENT EDGAR
- Jun 12, 20268-K CURRENT REPORT EDGAR
- Jun 11, 20264 EDGAR
- Jun 11, 20264 EDGAR
- Jun 11, 20264 EDGAR
- May 20, 20264 EDGAR
- May 20, 20264 EDGAR
- May 18, 2026144 EDGAR
The 386 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
94 open-market trades by officers, directors and large owners since October 2021: 8 buys and 86 sales. Grants, option exercises and gifts are left out.
| Date | Who | Trade | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Sep 4, 2026 | Cherry Brian NDirector | Buy | 104,166 | $9.60 | $1.0M | Form 4 |
| Aug 17, 2026 | Nguyen AnhCoPresident and CEO | Sale | 5,062 | $8.08 | $40.9K | Form 4 |
| May 18, 2026 | Nguyen AnhCoPresident and CEO | Sale | 5,241 | $9.13 | $47.9K | Form 4 |
| May 18, 2026 | Grant-Huerta YaninaChief Accounting Officer | Sale | 2,414 | $9.13 | $22.0K | Form 4 |
| May 7, 2026 | Panacea Innovation Ltd10% owner | Sale | 313,446 | $10.10 | $3.2M | Form 4 |
| May 7, 2026 | EcoR1 Capital, LLC10% owner | Buy | 507,407 | $9.35 | $4.7M | Form 4 |
| Mar 2, 2026 | Grant-Huerta YaninaChief Accounting Officer | Sale | 2,104 | $5.08 | $10.7K | Form 4 |
| Mar 2, 2026 | Nguyen AnhCoPresident and CEO | Sale | 2,996 | $5.09 | $15.2K | Form 4 |
| Jan 12, 2026 | Huang JamesDirector | Sale | 80,554 | $6.07 | $489.0K | Form 4 |
| Nov 17, 2025 | Nguyen AnhCoPresident and CEO | Sale | 2,915 | $13.19 | $38.4K | Form 4 |
| Nov 17, 2025 | Grant-Huerta YaninaChief Accounting Officer | Sale | 1,804 | $13.19 | $23.8K | Form 4 |
| Aug 18, 2025 | Nguyen AnhCoPresident and CEO | Sale | 2,958 | $11.62 | $34.4K | Form 4 |
| Aug 18, 2025 | Grant-Huerta YaninaChief Accounting Officer | Sale | 1,809 | $11.61 | $21.0K | Form 4 |
| Aug 15, 2025 | Panacea Innovation Ltd10% owner | Buy | 55,000 | $12.19 | $670.5K | Form 4 |
| Jul 17, 2025 | Huang JamesDirector | Buy | 19,335 | $9.64 | $186.4K | Form 4 |
| May 16, 2025 | Grant-Huerta YaninaChief Accounting Officer | Sale | 2,218 | $6.76 | $15.0K | Form 4 |
| May 16, 2025 | Nguyen AnhCoPresident and CEO | Sale | 3,276 | $6.76 | $22.1K | Form 4 |
| Mar 3, 2025 | Nguyen AnhCoPresident and CEO | Sale | 3,331 | $7.00 | $23.3K | Form 4 |
| Mar 3, 2025 | Hyllengren Eric J | Sale | 1,211 | $7.00 | $8.5K | Form 4 |
| Mar 3, 2025 | Henrich JillEVP, Chief Regulatory Officer | Sale | 1,059 | $7.00 | $7.4K | Form 4 |
All 94 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.
- Point72 Asset Management, L.P.SCHEDULE 13G/A, 5 filings Dec 21, 2021 to Aug 14, 202670
- Redmile Group, LLCSCHEDULE 13D/A, 9 filings Feb 14, 2022 to Jul 24, 202671
- Adage Capital Management, L.P.SCHEDULE 13G, 1 filing May 13, 202672
- Panacea Innovation LtdSCHEDULE 13D/A, 5 filings Feb 6, 2025 to May 11, 202673
- EcoR1 Capital, LLCSCHEDULE 13G/A, 4 filings Nov 21, 2023 to May 7, 202674
- Adiumentum Capital Fund I LPSCHEDULE 13D/A, 3 filings May 22, 2024 to May 16, 202575
- CITADEL ADVISORS LLCSC 13G/A, 2 filings Mar 18, 2024 to Nov 14, 202476
- VANGUARD GROUP INCSC 13G/A, 5 filings Feb 9, 2022 to Nov 12, 202477
- BlackRockSC 13G/A, 4 filings Feb 3, 2022 to Jul 8, 202478
- MAVERICK CAPITAL LTDSC 13G/A, 3 filings Mar 11, 2022 to Feb 14, 202479
- WASATCH ADVISORS LPSC 13G/A, 2 filings Feb 8, 2023 to Feb 9, 202480
- Goldman SachsSC 13G/A, 2 filings Feb 7, 2023 to Feb 6, 202481
- State Street CorporationSC 13G/A, 2 filings Feb 3, 2023 to Jan 22, 202482
- BAUPOST GROUP LLC/MASC 13G/A, 2 filings Feb 9, 2022 to Jan 9, 202483
- JPMorgan ChaseSC 13G/A, 3 filings Jan 7, 2022 to Dec 7, 202384
- FMR LLCSC 13G/A, 2 filings Feb 9, 2022 to Feb 9, 202385
Held by these funds
The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 35. Change is in shares since the quarter before.
| Fund | Shares | Value | Share of the fund | Change |
|---|---|---|---|---|
| EcoR1 Capital, LLC | 1,552,000 | $17.8M | 0.9% | +1,452,407 |
| Adage Capital Partners Gp, L.l.c. | 850,000 | $9.8M | 0.0% | +150,000 |
| Point72 Asset Management, L.P. | 687,718 | $7.9M | 0.0% | +493,454 |
| Redmile Group, LLC | 441,701 | $5.1M | 0.3% | No change |
| Vanguard Capital Management LLC | 247,047 | $2.8M | 0.0% | +29,185 |
| Mackenzie Financial Corp | 233,249 | $2.7M | 0.0% | −80,371 |
| BlackRock, Inc. | 84,455 | $969.5K | 0.0% | +5,433 |
| Geode Capital Management, LLC | 75,128 | $862.9K | 0.0% | +8,982 |
| Staley Capital Advisers Inc | 50,000 | $574.0K | 0.0% | No change |
| Vanguard Fiduciary Trust Co | 43,036 | $494.1K | 0.0% | +9,415 |
| Jane Street Group, LLC | 30,345 | $348.4K | 0.0% | −3,525 |
| State Street Corp | 26,453 | $303.7K | 0.0% | No change |
| Northern Trust Corp | 16,591 | $190.5K | 0.0% | +4,251 |
| Fmr LLC | 16,238 | $186.4K | 0.0% | No change |
| XTX Topco Ltd | 15,303 | $175.7K | 0.0% | New |
| Bridgeway Capital Management, LLC | 14,000 | $160.7K | 0.0% | −18,691 |
| Millennium Management LLC | 12,680 | $145.6K | 0.0% | −35,009 |
| Citadel Advisors LLC | 10,159 | $116.6K | 0.0% | New |
| Morgan Stanley | 9,178 | $105.4K | 0.0% | +9 |
| Royal Bank Of Canada | 4,743 | $55.0K | 0.0% | +424 |
| UBS Group AG | 3,979 | $45.7K | 0.0% | −46,091 |
| Vanguard Global Advisers, LLC | 1,456 | $16.7K | 0.0% | No change |
| SBI Securities Co., Ltd. | 1,404 | $16.1K | 0.0% | −170 |
| Jones Financial Companies Lllp | 803 | $8.4K | 0.0% | +100 |
| Caitong International Asset Management Co., Ltd | 311 | $3.6K | 0.0% | New |
13F reports cover disclosed long positions in U.S. stocks only.
SEC filer profile
How Atara Biotherapeutics, Inc. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.
- Name on EDGARAtara Biotherapeutics, Inc.2
- CIK0001604464
- Employer ID (EIN)46-09209886
- Filer statusNon-accelerated filer not an emerging growth company; a smaller reporting company; not a shell company6
- Incorporated inDelaware6
- Fiscal year endsDecember 312
- Industry code (SIC)2836 Biological Products, (No Diagnostic Substances)2
- SEC reviewing officeOffice of Life Sciences, Division of Corporation Finance2
- Business address1280 Rancho Conejo Blvd, Thousand Oaks, CA 913202
- Phone805-623-42112
- Shares outstanding10,037,710 as of Aug 10, 202613
- Public float$38.7M as of Jun 30, 20256
- AuditorDELOITTE & TOUCHE LLP, San Francisco, California PCAOB ID 34; no auditor attestation of internal control over financial reporting6
- On EDGAR sinceApr 10, 20142
- Filings1,130 in all: 4 (595), 8-K (146), SC 13G/A (76), 3 (43), 10-Q (36), 144 (36), SC 13G (28), 424B5 (19)2
All 43 form types
S-8 (19), DEFA14A (14), 10-K (12), CORRESP (12), DEF 14A (12), UPLOAD (9), EFFECT (7), SCHEDULE 13D/A (7), 4/A (6), CT ORDER (6), S-1/A (6), SCHEDULE 13G/A (4), S-1 (3), S-3 (3), SCHEDULE 13G (3), 424B3 (2), 424B4 (2), DRS/A (2), DRSLTR (2), PRE 14A (2), S-1MEF (2), S-3ASR (2), SCHEDULE 13D (2), 10-K/A (1), 424B1 (1), 8-A12B (1), CERTNAS (1), DEFR14A (1), DEL AM (1), DRS (1), FWP (1), POS AM (1), POSASR (1), SC 13D (1), SC 13D/A (1)
- Latest filingsAnnual report (10-K) Mar 16, 2026
Quarterly report (10-Q) Aug 12, 2026
Proxy statement (DEF 14A) Apr 24, 2026
Latest 8-K (8-K) Aug 12, 2026
Securities registered for trading
| Class | Symbol | Exchange |
|---|---|---|
| Common Stock, par value $0.0001 per share | ATRA | The Nasdaq Stock Market LLC |
From the cover page of the 10-K filed Mar 16, 2026 (Section 12(b) of the Exchange Act).6
Risk factors and legal proceedings
The risks Atara Biotherapeutics, Inc. names in Item 1A of its 10-K filed Mar 16, 2026: 65 risks under these headings, as written.6
- Risks Related to Our Financial Results, Capital Needs, and Review of Strategic Alternatives
- Our activities to review and pursue strategic alternatives may not result in a strategic transaction, and even if we do consummate a strategic transaction, there is no assurance that it will deliver the benefits we expect or enhance stockholder value.
- In the event that we do not successfully identify a viable strategic alternative, or consummate such a transaction, or if we are unable to raise sufficient capital to fund our operations, our board of directors may determine to pursue a liquidation and dissolution or other wind down of our business. In such an event, the amount of cash available for distribution to our stockholders, if any, will depend heavily on the timing of such liquidation as well as the amount of cash that will need to be reserved for commitments and contingent liabilities.
- We have incurred substantial losses since our inception and anticipate we will continue to incur substantial losses for the foreseeable future.
- We have a limited operating history, which may make it difficult to evaluate the success of our business to date and to assess our future viability.
- We have earned limited commercialization revenues to date. We may never achieve profitability or we may be unable to sustain profitability on a continuing basis.
- We will require substantial near-term financing to continue operations, and a failure to obtain this necessary capital when needed could force us to delay, limit, reduce or terminate our product development or manufacturing efforts, impair our exploration of strategic alternatives, or require us to pursue a liquidation and dissolution or other wind down of our business.
- Raising additional capital may cause dilution to our existing stockholders, restrict our operations or require us to relinquish rights to our product candidates on terms that are unfavorable to us.
- Risks Related to the Development of Our Product and Product Candidates
- We have one approved product, Ebvallo, which is currently approved in the European Economic Area (EEA), the UK and Switzerland. If we or our collaborators are unable to successfully develop, manufacture and commercialize tab-cel or experience significant delays in doing so, our business may be materially harmed.
- Our future success is dependent on the marketing authorization of tab-cel.
- Our T-cell immunotherapy product and product candidates represent new therapeutic approaches that could result in heightened regulatory scrutiny, delays in clinical development or our inability to achieve regulatory approval, commercialize or secure payor coverage of our product candidates.
The other 54 risks
- The results of preclinical studies or earlier clinical studies are not necessarily predictive of future results. Our existing product candidates may not receive regulatory approval.
- Clinical drug development involves a lengthy and expensive process with an uncertain outcome.
- Our product and product candidates, the methods used to deliver them or their dosage levels may cause undesirable side effects or have other properties that could delay or prevent their regulatory approval, limit the commercial profile of an approved label or result in significant negative consequences following any regulatory approval.
- The market opportunities for our product and product candidates may be limited to those patients who are ineligible for or have failed prior treatments and may be small.
- We may not be able to obtain or maintain orphan drug exclusivity for our product candidates.
- BTD by the FDA and PRIME designation by the EMA 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.
- A Fast Track designation by the FDA or other priority review program may not lead to a faster development or regulatory review, licensure process and does not increase the likelihood that our product candidates will receive marketing licensure.
- Failure to obtain regulatory or payor approval in international jurisdictions would prevent our product candidates from being marketed abroad.
- The proposed revision of the European legislation on pharmaceuticals, changes in governmental administration or changes in leadership at relevant agencies could lead to uncertainties over the regulatory framework that will be applicable to medicinal products in the EU and US, including orphan medicinal products.
- Even if our product candidates receive regulatory approval, they may still face future development and regulatory difficulties.
- Changes to regulations, guidelines and recommendations published by various government agencies and organizations may affect the use of our product candidates.
- Risks Related to Manufacturing
- We are subject to a multitude of manufacturing risks, any of which could substantially increase our costs and limit supply of our product and product candidates.
- Delays in receiving regulatory approvals for product candidates produced at our partners' CMOs’ facilities could delay our development plans and thereby limit our ability to generate revenues.
- If one or more of our partner's CMOs' facilities is damaged or destroyed or production at these facilities is otherwise interrupted, our business would be negatively affected.
- Risks Related to Our Dependence on Third Parties
- Maintaining clinical and commercial timelines is dependent on our partner's end-to-end supply chain network to support manufacturing; if we or our partner experience problems with third party suppliers or CMOs, we or our partner may delay development and/or commercialization of our product and product candidates.
- We are dependent on Pierre Fabre for the development, manufacturing and commercialization of tab-cel (Ebvallo in the EEA, Switzerland and the UK) worldwide, including the United States. The failure of Pierre Fabre to meet its contractual, regulatory or other obligations could adversely affect our business and our obligations under the HCRx Agreement.
- We may not realize the benefits of strategic alliances that we may form in the future or of potential future product acquisitions or licenses.
- Risks Related to Our Intellectual Property
- If we are unable to obtain and maintain sufficient intellectual property protection for our product candidates, or if the scope of the intellectual property protection is not sufficiently broad, our ability to commercialize our product candidates successfully and to compete effectively may be adversely affected.
- If we are sued for infringing the intellectual property rights of third parties, the resulting litigation could be costly and time-consuming and could prevent or delay our or our partners’ development and commercialization efforts.
- We may not be able to protect our intellectual property rights throughout the world.
- We have in-licensed a significant portion of our intellectual property from our partners. If we breach any of our license agreements with these partners, we could lose the ability to continue the development and potential commercialization of one or more of our product candidates.
- We may become involved in lawsuits to protect or enforce our intellectual property, which could be expensive, time-consuming and unsuccessful and have a material adverse effect on the success of our business.
- If we are unable to protect the confidentiality of our trade secrets and other proprietary information, the value of our technology could be materially adversely affected and our business could be harmed.
- Risks Related to Commercialization of Our Product and Product Candidates
- Our commercial success depends upon developing a clearly differentiated product and attaining significant market acceptance of our product and product candidates, if approved, among physicians, patients, healthcare payors and the medical community, including hospitals and outpatient clinics.
- Even if we or our partners are able to commercialize our product and product candidates, the products may not receive coverage and adequate reimbursement from third party payors in the U.S. and in other countries in which our partners seek to commercialize our products, which could harm our business.
- Current and future legislation, including potentially unfavorable pricing regulations or other healthcare reform initiatives, may increase the difficulty and cost for us to obtain regulatory approval of our product candidates and affect the prices for our product and product candidates.
- Price controls may be imposed in foreign markets, which may adversely affect our future profitability.
- We face substantial competition, which may result in others discovering, developing or commercializing products before or more successfully than we do.
- We are subject to certain contractual obligations under our royalty financing agreement with HealthCare Royalty Partners and may be subject to claims for damages if we fail to fulfill these obligations.
- We expect the product candidates we develop will be regulated as biological products (biologics) and therefore they may be subject to competition sooner than anticipated.
- If we are unable to enter into agreements with third parties to market and sell our product and product candidates, we may be unable to generate any revenue from the sale of our products.
- We may encounter difficulties in managing our growth, including with respect to our employee base, and managing our operations successfully.
- Risks Related to Ownership of Our Common Stock
- Our stock price has been and will likely continue to be volatile and may decline regardless of our operating performance.
- Our principal stockholders own a significant percentage of our stock and will be able to exert significant control or significant influence over matters subject to stockholder approval.
- Sales of a substantial number of shares of our common stock in the public market could cause our stock price to fall.
- We have incurred and will continue to incur increased costs as a result of being a public company and our management expects to devote substantial time to public company compliance programs.
- If we fail to maintain proper and effective internal controls, our ability to produce accurate and timely financial statements could be impaired, which could harm our business and investor confidence in us, and, as a result, the value of our common stock.
- Because we do not anticipate paying any cash dividends on our capital stock in the foreseeable future, capital appreciation, if any, will be the sole source of potential gain for our stockholders.
- Future sales and issuances of our common stock or rights to purchase common stock, including pursuant to our equity incentive plans, could result in additional dilution of the percentage ownership of our stockholders and could cause our stock price to fall.
- Some terms of our charter documents and Delaware law may have anti-takeover effects that could discourage an acquisition of us by others, even if an acquisition would be beneficial to our stockholders and may prevent attempts by our stockholders to replace or remove our current management.
- Our Bylaws designate a state or federal court located within the State of Delaware as the sole and exclusive forum for substantially all disputes between us and our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us or our current or former directors, officers, stockholders, or other employees.
- We qualify as a “smaller reporting company” and a “non-accelerated filer,” and any decision on our part to comply only with certain reduced reporting and disclosure requirements applicable to such companies could make our common shares less attractive to investors.
- If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our stock price and trading volume could decline.
- General Risk Factors
- Our future success depends on our ability to retain and motivate our executive officers and qualified personnel.
- Our workforce reductions may not result in anticipated savings, could result in total costs and expenses that are greater than expected and could disrupt our business.
- Our relationships with customers and third party payors will be subject to applicable anti-kickback, fraud and abuse, privacy and other laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings.
- Our employees may engage in misconduct or other improper activities, including noncompliance with regulatory standards and requirements, which could cause significant liability for us and harm our reputation.
- Product liability lawsuits against us could cause us to incur substantial liabilities and to limit commercialization of any products that we may develop.
- The actual or perceived failure by us, our customers, or vendors to comply with increasingly stringent laws, regulations and contractual obligations relating to privacy, data protection, and data security could harm our reputation, and subject us to significant fines and liability.
- If our security measures are compromised, or our information technology systems or those of our vendors, and other relevant third parties fail or suffer security breaches, loss or leakage of data, and other disruptions, this could result in a material disruption of our services, compromise sensitive information related to our business, harm our reputation, trigger our breach notification obligations, prevent us from accessing critical information, and expose us to liability or other adverse effects to our business.
- Changes in tax laws or regulations that are applied adversely to us or our customers may have an adverse effect on our business, cash flows, financial condition or results of operations.
- Our ability to use net operating loss carryforwards and certain tax assets to offset future taxable income or taxes may be subject to certain limitations.
- Business disruptions could seriously harm our future revenues and financial condition and increase our costs and expenses.
- The biopharmaceutical industry is subject to extensive regulatory obligations and policies that are subject to significant and abrupt change, including due to judicial challenges, election cycles, and resulting regulatory updates and changes in policy priorities.
Links
- Websitewww.atarabio.com1
- WikidataQ21874220
- SEC EDGARCIK 1604464
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21SEC EDGARGad Soffer, Chief operating officer
- 22
- 23
- 24
- 25
- 26
- 27SEC EDGARAmar Murugan, SVP, GC & Secretary
- 28SEC EDGARJakob Dupont, EVP, Head of R&D
- 29
- 30SEC EDGARDietmar Berger, Global Head of R&D
- 31
- 32
- 33
- 34
- 35
- 36SEC EDGARBrian N. Cherry, Board member
- 37SEC EDGARJeremy Green, Board member
- 38SEC EDGARNachiappan Subramanian, Board member
- 39
- 40SEC EDGARAmeet Mallik, Board member
- 41SEC EDGARRonald C. Renaud Jr., Board member
- 42SEC EDGARMaria Grazia Roncarolo, Board member
- 43SEC EDGARRoy D. Baynes, Board member
- 44SEC EDGAREric Dobmeier, Board member
- 45SEC EDGARWilliam K. Heiden, Board member
- 46SEC EDGARBeth C. Seidenberg, Board member
- 47
- 48SEC EDGAREckard Weber, Board member
- 49SEC EDGARJoel S. Marcus, Board member
- 50SEC EDGARAmar Murugan, General counsel
- 51SEC EDGARHeather D. Turner, General counsel
- 52SEC EDGARResults of operations
- 53SEC EDGARExecutive or director change
- 54
- 55SEC EDGARFinancial statements and exhibits
- 56SEC EDGAROther events
- 57SEC EDGARListing notice or transfer
- 58SEC EDGARResults of operations
- 59SEC EDGAROther events
- 60SEC EDGAROther events
- 61
- 62SEC EDGARResults of operations; Other events
- 63SEC EDGAREntered a material agreement
- 64NasdaqNasdaq calendar
- 65
- 66
- 67
- 68
- 69
- 70
- 71
- 72
- 73
- 74
- 75
- 76
- 77
- 78
- 79
- 80
- 81
- 82
- 83
- 84
- 85