Score Breakdown
Dilution Forecast
Market Data
Source-Backed Evidence Depth
This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.
| Field | Current Value | Basis |
|---|---|---|
| DilutionScore | 75/100 | DilutionWatch score record |
| Shares Outstanding | 10.04M | Verified float table or market cache |
| Public Float | 4.74M | Verified float table or market cache |
| Market Cap | $94.15M | Market data cache |
| Cash Runway | 1.2 months | DilutionWatch score inputs |
| Shelf Capacity | $9.00M | SEC-derived dilution fields |
| ATM Capacity | $11.14M | SEC-derived dilution fields |
| Outstanding Warrants | 1 | SEC-derived dilution fields |
Recent source-backed SEC insight records available on this page: 6.
Recent SEC source mix: 4 1, 424B3 1, EFFECT 1, FORM 4 2, XBRL 1.
The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.
Institutional Holdings
Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.
Short Interest
Recent SEC Activity
Recent News
Factual ATRA Dilution Snapshot
Atara Biotherapeutics, Inc. (ATRA) has a DilutionScore of 75/100, rated High dilution risk. Score date: October 13, 2026.
- Stored shelf registration capacity: $9.0M.
- Stored ATM program remaining capacity: $11.1M.
- Recent SEC activity tracked for ATRA: Form 4 on 2026-09-04; Form 4 on 2026-08-17; EFFECT on 2026-03-25.
This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.
DilutionScore History — Last 90 Days
ATRA's DilutionScore is currently 75/100 (High risk), with 4 score changes tracked over 89 days. The score improved from 65/100 (High risk).
| Period | Score | Risk Level | Duration |
|---|---|---|---|
| Oct 11 – Oct 13, 2026 | 75/100 | HIGH | 3 days |
| Oct 08 – Oct 10, 2026 | 65/100 | HIGH | 3 days |
| Sep 17 – Oct 07, 2026 | 75/100 | HIGH | 21 days |
| Aug 14 – Sep 16, 2026 | 76/100 | CRITICAL | 33 days |
| Jul 16 – Aug 13, 2026 | 75/100 | HIGH | 29 days |
Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.
Share Dilution History
ATRA shares outstanding have increased 18.1% from 7.21M (Mar 2026) to 8.51M (May 2026). Each increase represents potential dilution to existing shareholders.
| Date | Shares Outstanding | Public Float | Change |
|---|---|---|---|
| May 14, 2026 | 8.51M | 4.74M | ▲ 18.47% |
| May 12, 2026 | 8.51M | 4.00M | ▼ 11.23% |
| May 10, 2026 | 8.51M | 4.50M | ▼ 17.27% |
| May 03, 2026 | 8.51M | 5.45M | ▲ 2.09% |
| Apr 10, 2026 | 8.18M | 5.33M | ▼ 4.63% |
| Mar 22, 2026 | 8.18M | 5.59M | ▲ 6.62% |
| Mar 19, 2026 | 7.21M | 5.25M | ▲ 13.42% |
| Mar 17, 2026 | 7.21M | 4.62M | ▼ 0.17% |
Share counts sourced from verified regulatory filings. Increases indicate dilution events.
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