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Atara Biotherapeutics Announces Fourth Quarter and Full Year 2025 Financial Results and Operational Progress

March 16, 2026 4:05 PM

Atara delivers significant operational efficiencies and extends cash runway through year-end 2026

A Type A meeting has been scheduled between Pierre Fabre Pharmaceuticals and the FDA

THOUSAND OAKS, Calif.--(BUSINESS WIRE)-- Atara Biotherapeutics, Inc. (Nasdaq: ATRA), 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 diseases, today reported financial results for the fourth quarter and full year 2025 and business updates.

“We continue to focus on streamlining our costs and liabilities, allowing us to be a nimbler, fit for purpose organization,” said Cokey Nguyen Ph.D., President and Chief Executive Officer of Atara. “With the adjustments we have made we are able to focus on supporting our partner, Pierre Fabre Pharmaceuticals, as they work towards addressing the concerns in the latest Complete Response Letter with the agency. We strongly believe that tabelecleucel can bring substantial benefit to post-transplant lymphoproliferative disease patients and we are committed to supporting Pierre Fabre Pharmaceuticals as they get this life-saving drug to the finish line in the U.S.”

Tabelecleucel (tab-cel® or Ebvallo™) for Post-Transplant Lymphoproliferative Disease (PTLD)

A Type A meeting with the U.S. Food and Drug Administration (FDA) has been scheduled for our partner Pierre Fabre Pharmaceuticals to discuss the issues raised by the FDA in the Complete Response Letter received in January 2026. We anticipate providing a regulatory update in the second quarter.

Corporate Updates

As previously communicated, Atara entered into an amendment (Amendment) to the Purchase and Sale Agreement dated as of December 20, 2022 with a fund managed by HealthCare Royalty (“HCRx”). Under the terms of the Amendment, HCRx agreed to amend the due date of the one-time $9.0 million cash payment associated with the achievement of a certain milestone from June 30, 2026 to January 1, 2028 in exchange for the issuance of a warrant to purchase up to 400,000 shares of Atara common stock.

Financial Update:

Fourth Quarter and Full Year 2025 Financial Results:

2026 Outlook and Cash Runway:

About Atara Biotherapeutics, Inc.

Atara is harnessing the natural power of the immune system to develop off-the-shelf cell therapies for difficult-to-treat cancers and autoimmune conditions that can be rapidly delivered to patients from inventory. With cutting-edge science and differentiated approach, Atara is the first company in the world to receive regulatory approval of an allogeneic T-cell immunotherapy. Our advanced and versatile T-cell platform does not require T-cell receptor or HLA gene editing and forms the basis of a diverse portfolio of investigational therapies that target EBV, the root cause of certain diseases. Atara is headquartered in Southern California. For more information, visit atarabio.com and follow @Atarabio on X and LinkedIn.

Forward-Looking Statements

This press release contains or may imply "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. For example, forward-looking statements include statements regarding: (1) the development, timing and progress of tab-cel, including the timing and results of the Type A meeting and the potential path forward for the timely accelerated approval of EBVALLO™, the potential characteristics and benefits of tab-cel, and the results of, and prospects for bringing tab-cel to U.S. patients with EBV+ PTLD, the global partnership with Pierre Fabre Medicament involving tab-cel, and the potential financial benefits to Atara as a result of the global partnership with Pierre Fabre Medicament, including the receipt, timing and amount of any payments to be received by Atara thereunder; (2) the timing of the $9.0 million cash payment to HCRx; (3) Atara’s cash runway, receipt of potential milestone payments, and estimated reduction in operating expenses, including Atara’s ability to fund its planned operations to year-end 2026; and (4) Atara’s evaluation of strategic alternatives and ability to consummate one or more strategic transactions. Because such statements deal with future events and are based on Atara’s current expectations, they are subject to various risks and uncertainties and actual results, performance or achievements of Atara could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, risks and uncertainties associated with the costly and time-consuming pharmaceutical product development process and the uncertainty of clinical success; risks related to FDA’s review of the resubmitted BLA for tab-cel; our ability to access capital, and the sufficiency of Atara’s cash resources and access to additional capital on favorable terms or at all; the timing of the strategic review process; whether Atara will pursue any strategic alternatives; in the event Atara pursues a strategic alternative, that the strategic alternative may not be attractive or ultimately consummated; whether any strategic alternative will result in additional value for Atara and its stockholders; whether the process will have an adverse impact on Atara and other risks and uncertainties affecting Atara, including those discussed in Atara’s filings with the Securities and Exchange Commission, including in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of the Company’s most recently filed periodic reports on Form 10-K and Form 10-Q and subsequent filings and in the documents incorporated by reference therein. Except as otherwise required by law, Atara disclaims any intention or obligation to update or revise any forward-looking statements, which speak only as of the date hereof, whether as a result of new information, future events or circumstances or otherwise.

Financials

ATARA BIOTHERAPEUTICS, INC.

Consolidated Balance Sheets

(In thousands, except per share amounts)

December 31,

December 31,

2025

2024

Assets

Current assets:

Cash and cash equivalents

$

8,482

$

25,030

Short-term investments

17,466

Restricted cash

146

Accounts receivable

1,253

1,482

Inventories

10,655

Other current assets

2,477

10,115

Total current assets

12,212

64,894

Property and equipment, net

73

1,294

Operating lease assets

7,064

39,807

Other assets

886

3,103

Total assets

$

20,235

$

109,098

Liabilities and stockholders’ equity (deficit)

Current liabilities:

Accounts payable

$

127

$

4,367

Accrued compensation

1,271

6,589

Accrued research and development expenses

82

7,984

Deferred revenue

716

95,092

Liability related to the sale of future revenues – current portion

9,750

382

Other current liabilities

2,976

20,160

Total current liabilities

14,922

134,574

Operating lease liabilities – long-term

9,347

29,914

Liability related to the sale of future revenues – long-term

32,673

38,624

Other long-term liabilities

1,795

3,269

Total liabilities

58,737

206,381

Commitments and contingencies (Note 9)

Stockholders’ equity (deficit):

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

1

Additional paid-in capital

1,983,361

1,957,261

Accumulated other comprehensive income

1

8

Accumulated deficit

(2,021,865

)

(2,054,553

)

Total stockholders’ equity (deficit)

(38,502

)

(97,283

)

Total liabilities and stockholders’ equity (deficit)

$

20,235

$

109,098

ATARA BIOTHERAPEUTICS, INC.

Consolidated Statements of Operations and Comprehensive Income (Loss)

(In thousands, except per share amounts)

Years Ended December 31,

2025

2024

Commercialization revenue

$

120,772

$

128,940

Total revenue

120,772

128,940

Costs and operating expenses:

Cost of commercialization revenue

21,212

21,009

Research and development expenses

37,445

151,483

General and administrative expenses

26,253

39,886

Total costs and operating expenses

84,910

212,378

Income (loss) from operations

35,862

(83,438

)

Other income (expense), net:

Interest income

683

2,110

Interest expense

(3,792

)

(4,615

)

Other income (expense), net:

(34

)

528

Total other income (expense), net

(3,143

)

(1,977

)

Income (loss) before provision for (benefit from) income taxes

32,719

(85,415

)

Provision for (benefit from) income taxes

31

(12

)

Net income (loss)

$

32,688

$

(85,403

)

Other comprehensive gain (loss):

Unrealized gain (loss) on available-for-sale securities

(7

)

212

Comprehensive income (loss)

$

32,681

$

(85,191

)

Basis earnings (loss) per common share

$

2.61

$

(11.41

)

Diluted earnings (loss) per common share

$

2.57

$

(11.41

)

Basic weighted-average shares outstanding

12,544

7,488

Diluted weighted-average shares outstanding

12,718

7,488

Investor and Media Relations

Amber Daugherty

Sr. Director, Strategy and Operations

[email protected]

Source: Atara Biotherapeutics, Inc.

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