Who Owns Atara Biotherapeutics Stock?
NASDAQ: ATRAHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Ownership breakdown
- Held by institutions
- 57.67%
- Held by insiders
- 16.80%
- Institutional holders
- 46
- Institutions 57.7%
- Insiders 16.8%
- Public and other 25.5%
Who owns Atara Biotherapeutics stock?
Institutional investors own about 57.7% of Atara Biotherapeutics's shares, spread across 46 institutions that file 13F reports. That level of institutional ownership is moderate. Insiders, including executives, directors and large founding shareholders, hold 16.80% of ATRA.
The largest institutional holders are EcoR1 Capital, LLC (15.46%), Adage Capital Partners GP L.L.C. (8.47%) and Point72 Asset Management, L.P. (6.85%). Together, the top 10 institutions control 42.5% of shares outstanding. In their latest filings, 7 of the top 10 institutions increased their ATRA positions and 1 reduced them.
Summary generated from market data by MetaCap's automated system. Methodology
Top institutional holders of ATRA
| Institution | Shares | % Held | Change |
|---|---|---|---|
| EcoR1 Capital, LLC | 1.55M | 15.46% | +1458.3% |
| Adage Capital Partners GP L.L.C. | 850.00K | 8.47% | +21.4% |
| Point72 Asset Management, L.P. | 687.72K | 6.85% | +254.0% |
| Redmile Group, LLC | 441.70K | 4.40% | 0.0% |
| Vanguard Capital Management LLC | 247.05K | 2.46% | +13.4% |
| Mackenzie Financial Corporation | 233.25K | 2.32% | -25.6% |
| Blackrock Inc. | 84.45K | 0.84% | +6.9% |
| Geode Capital Management, LLC | 75.13K | 0.75% | +13.6% |
| Staley Capital Advisers, Inc. | 50.00K | 0.50% | 0.0% |
| Vanguard Fiduciary Trust Co | 43.04K | 0.43% | +28.0% |
% held is the share of total shares outstanding. Change is the percentage change in the position since the holder's previous 13F filing.
Top mutual fund and ETF holders of ATRA
| Fund | Shares | % Held |
|---|---|---|
| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | 158.65K | 1.58% |
| VANGUARD INDEX FUNDS-Vanguard Extended Market Index Fund | 82.76K | 0.82% |
| Fidelity Concord Street Trust-Fidelity Extended Market Index Fund | 35.39K | 0.35% |
| iShares Trust-iShares Micro-Cap ETF | 18.82K | 0.19% |
| Varbl Insurance Prod. Fd. II-VIP Disciplined Small Cap PORT. | 16.24K | 0.16% |
| Fidelity Concord Street Trust-Fidelity Series Total Market Index Fund | 11.18K | 0.11% |
| Fidelity Concord Street Trust-Fidelity Total Market Index Fund | 10.48K | 0.10% |
| Fidelity Concord Street Trust-Fidelity Nasdaq Composite Index Fund | 4.61K | 0.05% |
| VANGUARD Inst. INDEX Fd.S-Vanguard Inst. Total Stock Market Index Fd. | 2.84K | 0.03% |
| VANGUARD VALLEY FORGE FUNDS-Vanguard Balanced Index Fund | 2.80K | 0.03% |
Frequently asked questions
Who is the largest shareholder of Atara Biotherapeutics?
EcoR1 Capital, LLC is the largest institutional shareholder of ATRA, owning 15.46% of shares outstanding (1.55M shares) as of its latest 13F filing.
What percentage of Atara Biotherapeutics is owned by institutions?
Institutions own about 57.7% of ATRA shares and 69.3% of the public float.
How much of Atara Biotherapeutics do insiders own?
Insiders, such as officers and directors, own about 16.80% of ATRA shares outstanding.
Where does institutional ownership data come from?
Investment managers with more than $100 million in US equities must file Form 13F with the SEC within 45 days of each quarter-end. Holdings are therefore up to about 4.5 months old when published.