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ATRA · Atara Biotherapeutics, Inc.

Company guidance, FDA catalysts, dilution risk and cash runway, built from SEC, FDA and ClinicalTrials.gov filings and updated every day.

$12.8M Cash, Jun 2026
12mo Cash Runway (est.)
+43% Share Count, 1 Year
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💰 Cash Runway & Dilution Risk

ATRA reported $12.8M in cash and short-term investments (as of Jun 30, 2026) and used about $3.2M/quarter in operations, an estimated runway of 11.9 months at that rate (BioRadar estimate, not company guidance).

Dilution pressure: 84 · High

Recent financing filings on SEC EDGAR:

Source: SEC EDGAR (XBRL cash flow and financing filings). Dilution Watch: every company ranked → · Get an alert when ATRA files for a raise →

👥 Who Owns ATRA

Insiders Form 4 data not loaded yet Other 5%+ holders 20% Institutions (46 holders) 57.7% Public and other holders 22.3%
HolderTypeShares% of sharesAs of
EcoR1 Capital, LLC Institution (13G, 5%+) 1,552,000 15.46% 2026-05-07
Adiumentum Capital Fund I LP Institution (13G, 5%+) 1,370,081 13.65% 2025-05-14
Panacea Innovation Limited 5%+ holder (13D) 1,318,894 13.14% 2026-05-07
Redmile Group, LLC Institution (13G, 5%+) 950,994 9.47% 2026-07-22
Adage Capital Management, L.P. Institution (13G, 5%+) 700,000 6.97% 2026-03-31
Point72 Asset Management, L.P. 5%+ holder (13G) 687,718 6.85% 2026-06-30

Share count 10,037,710 (latest 10-Q/10-K). Insiders: each officer's, director's and 10% owner's latest Form 3, 4 or 5, direct and indirect shares; options are not counted. 5%+ holders: latest Schedule 13D or 13G of each holder above 5%. Institutions: the total held by all 13F filers (Yahoo Finance); the table lists the largest. Sources have different dates, so the split is approximate. Source: SEC EDGAR.

📅 Past FDA Decisions & Stock Reactions

DateDrugTypeRun-up 30dDecision 1dAfter 5d
2026-01-10 EBVALLO BLA -12.9% -57% -66.8%

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Data: SEC EDGAR, FDA, ClinicalTrials.gov, Yahoo Finance • Informational purposes only, not investment advice. • All tracked stocks A–Z

This data is for informational purposes only, not investment advice. BioRadar does not provide buy/sell recommendations. Past performance does not guarantee future results. Always do your own due diligence.