Also trades as: 0HIY.L (LSE) · $vol 0M
ATRA Institutional Ownership
Atara Biotherapeutics, Inc.
1W: -9.4%
1M: -0.8%
3M: +3.0%
YTD: -53.3%
1Y: -42.7%
3Y: -75.8%
5Y: -97.8%
$8.30
-0.05 (-0.60%)
Weekly Expected Move ±10.1%
$7
$8
$9
$9
$10
Credit Risk of going bust: higher than 91% of companies Debt: 10.6% of company value Bonds: none of note held by US funds details ▾
Of US companies ranked in the riskiest tenth, about 1 in 20 filed for bankruptcy within a year (2020-2025).
If the stock fell to about $0.25 (down 97%), Atara Biotherapeutics, Inc. would be worth roughly what it owes.
Total debt $9.9M against a stock market value of $83.3M.
Distance to default 1.49 (Merton model): prices to 2026-10-27, balance sheet 2026-06-30, debt counted $4.9M (short-term plus half of long-term), stock volatility 142.0%; Altman Z'' -317.91. A ranking and a back-test, not a forecast.
US fund filings (SEC N-PORT) show under $25M of this company's bonds, so there is no bond page. Its debt may be bank loans or privately placed. How these are computed.
If the stock fell to about $0.25 (down 97%), Atara Biotherapeutics, Inc. would be worth roughly what it owes.
Total debt $9.9M against a stock market value of $83.3M.
Distance to default 1.49 (Merton model): prices to 2026-10-27, balance sheet 2026-06-30, debt counted $4.9M (short-term plus half of long-term), stock volatility 142.0%; Altman Z'' -317.91. A ranking and a back-test, not a forecast.
US fund filings (SEC N-PORT) show under $25M of this company's bonds, so there is no bond page. Its debt may be bank loans or privately placed. How these are computed.
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Institutional Ownership — ATRA
38
Institutional Holders
-10 vs prior quarter
0.0%
Ownership
+0.00pp
$51M
Total Invested
4
New Positions
12
Increased
10
Reduced
2
Closed
0.00
Put/Call Ratio
Ownership Trends
Top Institutional Holders (50 total)
| # | Holder | Shares | Value | Change | Change % | Holding Period | Filing |
|---|---|---|---|---|---|---|---|
| 1 | EcoR1 Capital, LLC | 1,552,000 | $13M | +1,452,407 | +1458.3% | 9Q | SEC ↗ |
| 2 | ADAGE CAPITAL PARTNERS GP, L.L.C. | 850,000 | $7M | +150,000 | +21.4% | 2Q | SEC ↗ |
| 3 | Point72 Asset Management, L.P. | 687,718 | $6M | +493,454 | +254.0% | 3Q | SEC ↗ |
| 4 | Redmile Group, LLC | 441,701 | $4M | — | +0.0% | 9Q | SEC ↗ |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 247,047 | $2M | +29,185 | +13.4% | 2Q | SEC ↗ |
| 6 | MACKENZIE FINANCIAL CORP | 233,249 | $2M | -80,371 | -25.6% | 5Q | SEC ↗ |
| 7 | BlackRock, Inc. | 84,455 | $701K | +5,433 | +6.9% | 8Q | SEC ↗ |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 75,128 | $624K | +8,982 | +13.6% | 9Q | SEC ↗ |
| 9 | STALEY CAPITAL ADVISERS INC | 50,000 | $415K | — | +0.0% | 9Q | SEC ↗ |
| 10 | VANGUARD FIDUCIARY TRUST CO | 43,036 | $357K | +9,415 | +28.0% | 2Q | SEC ↗ |
| 11 | ACADIAN ASSET MANAGEMENT LLC | 38,845 | $322K | -92,065 | -70.3% | 9Q | SEC ↗ |
| 12 | JANE STREET GROUP, LLC | 30,345 | $252K | -3,525 | -10.4% | 4Q | SEC ↗ |
| 13 | STATE STREET CORP | 26,453 | $220K | — | +0.0% | 9Q | SEC ↗ |
| 14 | NORTHERN TRUST CORP | 16,591 | $138K | +4,251 | +34.4% | 7Q | SEC ↗ |
| 15 | FMR LLC | 16,238 | $135K | — | +0.0% | 9Q | SEC ↗ |
| 16 | XTX Topco Ltd NEW | 15,303 | $127K | — | +0.0% | 1Q | SEC ↗ |
| 17 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 14,000 | $116K | -18,691 | -57.2% | 9Q | SEC ↗ |
| 18 | MILLENNIUM MANAGEMENT LLC | 12,680 | $105K | -35,009 | -73.4% | 2Q | SEC ↗ |
| 19 | CITADEL ADVISORS LLC NEW | 10,159 | $84K | — | +0.0% | 1Q | SEC ↗ |
| 20 | MORGAN STANLEY | 9,178 | $76K | +9 | +0.1% | 9Q | SEC ↗ |
| 21 | ROYAL BANK OF CANADA | 4,743 | $39K | +424 | +9.8% | 7Q | SEC ↗ |
| 22 | UBS Group AG | 3,979 | $33K | -46,091 | -92.1% | 9Q | SEC ↗ |
| 23 | Vanguard Global Advisers, LLC | 1,456 | $12K | — | +0.0% | 2Q | SEC ↗ |
| 24 | SBI Securities Co., Ltd. | 1,404 | $12K | -170 | -10.8% | 7Q | SEC ↗ |
| 25 | JONES FINANCIAL COMPANIES LLLP | 803 | $7K | +100 | +14.2% | 7Q | SEC ↗ |
| 26 | Caitong International Asset Management NEW | 311 | $3K | — | +0.0% | 1Q | SEC ↗ |
| 27 | BARCLAYS PLC NEW | 304 | $3K | — | +0.0% | 1Q | SEC ↗ |
| 28 | WELLS FARGO & COMPANY/MN | 251 | $2K | — | +0.0% | 9Q | SEC ↗ |
| 29 | JPMORGAN CHASE & CO | 216 | $2K | — | +0.0% | 9Q | SEC ↗ |
| 30 | Banque Transatlantique SA | 176 | $1K | — | +0.0% | 7Q | SEC ↗ |
| 31 | CITIGROUP INC | 97 | $1K | +96 | +9600.0% | 2Q | SEC ↗ |
| 32 | BNP PARIBAS FINANCIAL MARKETS | 46 | $0K | -12 | -20.7% | 9Q | SEC ↗ |
| 33 | KERR FINANCIAL PLANNING Corp | 24 | $0K | — | +0.0% | 4Q | SEC ↗ |
| 34 | OSAIC HOLDINGS, INC. | 10 | $0K | — | +0.0% | 8Q | SEC ↗ |
| 35 | Rockefeller Capital Management L.P. | 8 | $0K | — | +0.0% | 4Q | SEC ↗ |
| 36 | RHUMBLINE ADVISERS | 0 | $0K | -175 | -100.0% | 8Q | SEC ↗ |
| 37 | Tower Research Capital LLC (TRC) | 0 | $0K | -1,737 | -100.0% | 2Q | SEC ↗ |
| 38 | GLOBEFLEX CAPITAL L P | 0 | $0K | -77,224 | -100.0% | 2Q | SEC ↗ |
| 39 | Quadrature Capital Ltd | 0 | $0K | -20,321 | -100.0% | 2Q | SEC ↗ |
| 40 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0 | $0K | -14,018 | -100.0% | 1Q | SEC ↗ |
| 41 | DIMENSIONAL FUND ADVISORS LP | 0 | $0K | -10,028 | -100.0% | 1Q | SEC ↗ |
| 42 | RENAISSANCE TECHNOLOGIES LLC | 0 | $0K | -30,040 | -100.0% | 7Q | SEC ↗ |
| 43 | FEDERATED HERMES, INC. | 0 | $0K | -130 | -100.0% | 1Q | SEC ↗ |
| 44 | Walleye Capital LLC | 0 | $0K | -12,169 | -100.0% | 1Q | SEC ↗ |
| 45 | Cambridge Investment Research Advisors | 0 | $0K | -22,864 | -100.0% | 2Q | SEC ↗ |
| 46 | Western Wealth Management, LLC | 0 | $0K | -1 | -100.0% | 1Q | SEC ↗ |
| 47 | MARSHALL WACE, LLP | 0 | $0K | -148,632 | -100.0% | 3Q | SEC ↗ |
| 48 | Private Wealth Asset Management, LLC | 0 | $0K | -900 | -100.0% | 2Q | SEC ↗ |
| 49 | Connor, Clark & Lunn Investment Manage | 0 | $0K | -10,446 | -100.0% | 1Q | SEC ↗ |
| 50 | BANK OF AMERICA CORP /DE | 0 | $0K | -10,387 | -100.0% | 7Q | SEC ↗ |
Recent Activity
New Positions (4)
| Holder | Shares | Value |
|---|---|---|
| XTX Topco Ltd | 15,303 | $127K |
| CITADEL ADVISORS LLC | 10,159 | $84K |
| Caitong International Asset Managem | 311 | $3K |
| BARCLAYS PLC | 304 | $3K |
Sold Out (15)
| Holder | Prev Shares | Prev Value |
|---|---|---|
| MARSHALL WACE, LLP | 148,632 | $1M |
| GLOBEFLEX CAPITAL L P | 77,224 | $641K |
| RENAISSANCE TECHNOLOGIES LLC | 30,040 | $249K |
| Cambridge Investment Research Advis | 22,864 | $190K |
| Quadrature Capital Ltd | 20,321 | $169K |
| SUSQUEHANNA INTERNATIONAL GROUP, LL | 14,018 | $116K |
| Walleye Capital LLC | 12,169 | $101K |
| Connor, Clark & Lunn Investment Man | 10,446 | $87K |
| BANK OF AMERICA CORP /DE | 10,387 | $86K |
| DIMENSIONAL FUND ADVISORS LP | 10,028 | $83K |
| Tower Research Capital LLC (TRC) | 1,737 | $14K |
| Private Wealth Asset Management, LL | 900 | $7K |
| RHUMBLINE ADVISERS | 175 | $1K |
| FEDERATED HERMES, INC. | 130 | $1K |
| Western Wealth Management, LLC | 1 | $0K |
Biggest Increases (12)
| Holder | Added | Change % | Total Shares |
|---|---|---|---|
| EcoR1 Capital, LLC | +1,452,407 | +1458.3% | 1,552,000 |
| Point72 Asset Management, L.P. | +493,454 | +254.0% | 687,718 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | +150,000 | +21.4% | 850,000 |
| VANGUARD CAPITAL MANAGEMENT LLC | +29,185 | +13.4% | 247,047 |
| VANGUARD FIDUCIARY TRUST CO | +9,415 | +28.0% | 43,036 |
| GEODE CAPITAL MANAGEMENT, LLC | +8,982 | +13.6% | 75,128 |
| BlackRock, Inc. | +5,433 | +6.9% | 84,455 |
| NORTHERN TRUST CORP | +4,251 | +34.4% | 16,591 |
| ROYAL BANK OF CANADA | +424 | +9.8% | 4,743 |
| JONES FINANCIAL COMPANIES LLLP | +100 | +14.2% | 803 |
| CITIGROUP INC | +96 | +9600.0% | 97 |
| MORGAN STANLEY | +9 | +0.1% | 9,178 |
Biggest Decreases (8)
| Holder | Reduced | Change % | Total Shares |
|---|---|---|---|
| ACADIAN ASSET MANAGEMENT LLC | -92,065 | -70.3% | 38,845 |
| MACKENZIE FINANCIAL CORP | -80,371 | -25.6% | 233,249 |
| UBS Group AG | -46,091 | -92.1% | 3,979 |
| MILLENNIUM MANAGEMENT LLC | -35,009 | -73.4% | 12,680 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | -18,691 | -57.2% | 14,000 |
| JANE STREET GROUP, LLC | -3,525 | -10.4% | 30,345 |
| SBI Securities Co., Ltd. | -170 | -10.8% | 1,404 |
| BNP PARIBAS FINANCIAL MARKETS | -12 | -20.7% | 46 |