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Research & education only — not financial advice.TENK is not a registered investment adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date. The operator and an affiliated trading operation may hold or trade the securities TENK rates — see Disclosures. Do your own research.

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Home›Stocks›ATRA
ATRA logo

ATRA

Atara Biotherapeutics, Inc.

Next earnings Aug 10, 2026 · consensus $-0.32 EPS, $51.0K rev

Last earnings -9.7% on 2026-03-16

Avoid
$11.65
▲ +4.30%
$11.65▲ +46.36%
over 1Y
L $4.18H $18.09
Earnings Dividend Split Congress buy Congress sellGrouped by date · hover a pin to expand
Today+4.3%
1W+14.0%
1M+17.7%
3M+133.5%
YTD-34.4%
1Y+46.4%
OverviewFinancialsValuationQualityTimelineFilings
Rating
Avoid
Quality
B
Valuation
Undervalued
Filings
Flagged
Avoid
Conviction
Horizon
Short (<3mo)
Street · 10 analysts
Buy

A 4.3x P/E is a mirage: one-time gains mask a cash-starved biotech with negative equity weighing liquidation.

Cash & equivalents $8.48M · FY2025

The read

It screens cheap (~738% below fair value), but the weak fundamentals are why — more potential value trap than bargain.

ATRA's headline screen looks irresistible — P/E 4.3, net income +138% to $32.7M, 29.7% operating margin, P/S 0.8 — but every one of those figures is an accounting artifact of a company in retreat, not a profitable operating business. The 10-K is explicit: management is conducting a 'review of strategic alternatives,' carries a going-concern assessment, and warns the board 'may determine to pursue a liquidation and dissolution or other wind down of our business,' in which case cash available to stockholders 'if any' is uncertain. That is the actual investment question here, and it overwhelms the trailing P&L.

The numbers confirm the wind-down. Despite reporting $35.9M of operating income, the company burned -$50.9M in operating cash flow — a ~$87M gap that tells you the 'profit' is non-cash and one-time, consistent with the HCR Molag royalty-monetization and the Pierre Fabre commercialization restructuring described in the filing (Ebvallo/tab-cel is partnered out, not self-commercialized). Meanwhile total assets collapsed -81.5% to $20.2M, R&D was cut -75.3% to $37.4M (a pipeline being shut, not funded), and cash fell -66.1% to just $8.48M. Against a $50.9M annual burn, $8.48M of cash is roughly two months of runway — the definition of needing additional financing or a transaction to survive.

AI-generated analysis, produced by our proprietary engine from SEC filing data.

Investment recommendation produced by TENK/calls (tenkcalls.com), Luxembourg. Completed Jun 30, 2026, 8:06 AM ET. Ratings & methodology: definitions · All recommendations to date: track record · Conflicts: disclosures. Not investment advice.

Is ATRA a buy? The one-page verdict, explained →

Financials · annual, by fiscal year

Line itemFY21FY22FY23FY24FY25
Revenue——$8.57M$129M$121M
Gross profit—————
Operating income-$340M-$281M-$276M-$83.4M$35.9M
Net income-$340M-$228M-$276M-$85.4M$32.7M
Diluted EPS-$3.63-$2.24-$65.19-$11.41$2.57
Net margin——-3220.9%-66.2%27.1%

Annual figures from SEC 10-K XBRL filings. Open the filing links below for full statement detail.

Key statistics

Valuation

Enterprise value$96.5M
EV / EBITDA2.5
EV / Sales0.8
EV / FCF—
P / FCF—
PEG (trailing)0.03
Earnings yield31.1%
FCF yield-48.5%

Quality & risk

ROIC (est.)—
Free cash flow-$50.9M
Total debt—
Net cash$8.48M
Altman Z-Score-127.16 distress
Piotroski F-Score4/7

Capital returns

Buyback yield—
Dividend yield (est.)—
Shareholder yield—
Shares Δ YoY+39.6%

Computed from SEC XBRL annual figures + the current quote. EV and ROIC use long-term + current debt where filed; estimates, not investment advice.

Disclosure timeline

SEC · 8-Ks + reports
Recent disclosure tone has skewed negative — read the flagged items.
  1. 8-K Officer / director change2026-06-26

    Item 5.02 officer/director change amid ongoing strategic-alternatives review

  2. 8-K Officer / director change2026-06-12

    Annual meeting vote results plus a board/officer change disclosed

  3. 8-K Exhibits2026-05-12

    Q1 2026: thin $8.5M cash, going-concern doubt, wind-down/strategic review ongoing

  4. 10-Q Quarterly report2026-05-12

    Q1 2026: thin $8.5M cash, going-concern doubt, wind-down/strategic review ongoing

  5. 8-K Other event2026-05-07

    Item 8.01 other-events update (likely tab-cel/strategic), no financial impact stated

  6. 8-K Delisting notice2026-05-01

    Item 3.01 delisting/listing-rule deficiency notice — exchange compliance at risk

  7. DEF 14A Proxy statement2026-04-24

    Annual proxy: board, pay and auditor up for shareholder vote, routine

  8. S-3 Shelf registration (potential raise)2026-03-17

    Shelf registration filed, enabling future stock sales — dilution overhang

  9. 8-K Earnings results2026-03-16

    FY2025: net income positive but -$38.5M equity, going concern, strategic review

Recent filings

all on EDGAR ↗
8-KPeriod ending 2026-06-222026-06-26open ↗4Period ending 2026-06-112026-06-15open ↗3Period ending 2026-06-112026-06-15open ↗S-8Filing2026-06-12open ↗8-KPeriod ending 2026-06-092026-06-12open ↗4Period ending 2026-06-092026-06-11open ↗4Period ending 2026-06-092026-06-11open ↗4Period ending 2026-06-092026-06-11open ↗4Period ending 2026-05-182026-05-20open ↗4Period ending 2026-05-182026-05-20open ↗144Filing2026-05-18open ↗144Filing2026-05-18open ↗

Quality score

B
ValueGrowthProfitHealthMom.
ValueA+
GrowthB-
ProfitabilityA+
Financial healthF
MomentumC+
  • ✗Revenue growing year-over-year
  • ✓Profitable (positive net income)
  • ✓Net margin above 10%
  • ✓Liabilities below 2× equity
  • ✓P/E below 25

Fair value est.

$97.66

Undervalued +738% vs price

cheapfair valueexpensive

Modified Graham: EPS $2.57 × (8.5 + 1.5 × 22.0% growth) × 1.05 quality = 38.0× multiple. An estimate, not a price target.

4.1852-week18.09
Revenue
$121M
-6.3% YoY
Net margin
27.1%
ROE
—
P/E
4.5

SEC fundamentals · FY 2025

'21'22'23'24'25

■ revenue · ■ net income, by fiscal year

Revenue$121M-6.3%
Net income$32.7M+138.3%
Operating income$35.9M+143.0%
Diluted EPS$2.57+122.5%
Cash & equivalents$8.48M-66.1%
Total assets$20.2M-81.5%
Total liabilities$58.7M-71.5%
Stockholders' equity-$38.5M+60.4%
Op.: 29.7%L/E: -1.53x

Frequently asked

Is Atara Biotherapeutics, Inc. (ATRA) a buy?
ATRA currently carries a Avoid rating with 4/5 conviction, derived from its latest SEC filings. A 4.3x P/E is a mirage: one-time gains mask a cash-starved biotech with negative equity weighing liquidation.
What is ATRA's fair value?
A Modified-Graham model based on ATRA's SEC fundamentals estimates a fair value of about $97.66. It is an estimate from reported earnings, not a price target.
Is ATRA overvalued or undervalued?
Against a Modified-Graham fair-value estimate, ATRA currently appears undervalued relative to its SEC-grounded earnings power.
What is Atara Biotherapeutics, Inc.'s quality score?
ATRA scores 72.06666614105558/100 (grade B) on a SEC-grounded quality model spanning value, growth, profitability, financial health and momentum.

Sources: SEC EDGAR (CIK 0001604464, latest 10-Q filed 2026-05-12) · EODHD · Proprietary analysis · as of 6/30/2026, 12:06:32 PM.

Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.

Insider activity

Form 4 · SEC

Last 90 days: 1 open-market buy · 3 sales

2026-06-11
Cherry Brian N
Director
Award24.0K
2026-06-09
HEIDEN WILLIAM K
Director
Award12.0K
2026-06-09
Fust Matthew K
Director
Award12.0K
2026-06-09
Ciongoli Gregory Austin
Director
Award12.0K
2026-05-18
Nguyen AnhCo
President and CEO
Sell5.24K @ $9.13$47.8K
2026-05-18
Grant-Huerta Yanina
Chief Accounting Officer
Sell2.41K @ $9.13$22.0K
2026-05-07
Panacea Innovation Ltd
Director
Sell313K @ $10.10$3.17M
2026-05-07
EcoR1 Capital, LLC
10% owner
Buy507K @ $9.35$4.74M

Earnings history

beat/miss · move
2026-03-16Miss -43.0% est▼ -9.69%8-K ↗
2026-01-12Miss -43.0% est▼ -56.99%8-K ↗
2025-11-12Beat +63.5% est▼ -0.72%8-K ↗
2025-08-11Beat +140.5% est▼ -5.80%8-K ↗
2025-07-14Beat +140.5% est▲ +0.76%8-K ↗
2025-05-15—▲ +15.13%8-K ↗

Dates from 8-K (Item 2.02); beat/miss = reported EPS vs consensus (Finnhub, recent quarters); move = prior close → close on/after.

Recent news

market news →
Tenaya Therapeutics Names Eric Hyllengren CFO Ahead Of Higa RetirementBullish
nasdaq.com· 2026-06-30
Atara Announces Departure Of Carol Gallagher As Director, Brian Cherry To SucceedBullish
nasdaq.com· 2026-06-15
ATRA DEADLINE TODAY: ROSEN, A LEADING LAW FIRM, Encourages Atara Biotherapeutics, Inc. Investors with Losses in Excess of $100K to Secure Counsel Before Important May 22 Deadline in Securities Class Action - ATRABullish
globenewswire.com· 2026-05-22
DEADLINE ALERT for ATRA, COTY, SMCI, IBRX: Law Offices of Howard G. Smith Reminds Investors of Opportunity to Lead Securities Fraud Class ActionsBullish
globenewswire.com· 2026-05-21
ATRA Stock Shoots Up 82% in a Month: Here's What You Should KnowBullish
finance.yahoo.com· 2026-05-21
ATARA DEADLINE: ROSEN, SKILLED INVESTOR COUNSEL, Encourages Atara Biotherapeutics, Inc. Investors to Secure Counsel Before Important Deadline in Securities Class Action - ATRABullish
globenewswire.com· 2026-05-19

Vs tracked universe

compare →

1195 tracked peers · median

TENK Score72 vs 67
Revenue growth-6.3% vs 7.5%
Net margin27.1% vs 10.0%
Return on equity— vs 12.0%
P/E4.5 vs 26.2

News sentiment

EODHD · 12d
Bearish
-0.21
vs typical · 21 articles
↑ improving

Recent news tone vs the market's typical (which skews positive). A soft signal, not a recommendation.