Billionaire Seth Klarman’s Biotech Stock Picks
In this article, we discuss billionaire Seth Klarman’s biotech stock picks.
Atara Biotherapeutics Inc. (ATRA)
Market is closed
Sector: Healthcare
Hedge Fund Popularity
Hedge Fund Holdings
Filing Period:
Last updated on based on SEC 13F filings Last update:
| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | EcoR1 Capital Oleg Nodelman | 573,183 | $8,213,712 | 0.39% | |
| 2. | Redmile Group Jeremy Green | 441,701 | $6,329,575 | 0.62% | |
| 3. | Marshall Wace LLP Paul Marshall And Ian Wace | 115,796 | $1,659,357 | +174% | 0% |
| 4. | Renaissance Technologies Jim Simons | 18,936 | $271,353 | +12% | 0% |
| 5. | Citadel Investment Group Ken Griffin | 0 | $0 | 0% |
Insider Trading: Purchases See All
| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
|---|---|---|---|---|---|---|
| $12.19 | 55,000 | $670,422.50 | 1,405,000 | 2025-08-15 | Filing | |
| $9.64 | 19,335 | $186,372.00 | 1,350,000 | 2025-07-17 | Filing | |
| $0.31 | 90,980 | $28,185.60 | 459,418 | 2023-11-14 | Filing | |
| $0.22 | 179,020 | $40,028.87 | 368,438 | 2023-11-13 | Filing | |
| $0.25 | 100,000 | $25,330.00 | 209,000 | 2023-11-10 | Filing |
Insider Trading: Sales See All
| Insider | Price | Amount | Total Value | Remaining Holdings | Date | Form 4 |
|---|---|---|---|---|---|---|
| $13.19 | 56 | $738.53 | 64,974 | 2025-11-17 | Filing | |
| $13.19 | 2,859 | $37,698.77 | 65,030 | 2025-11-17 | Filing | |
| $13.19 | 74 | $976.13 | 33,454 | 2025-11-17 | Filing | |
| $13.19 | 85 | $1,120.98 | 33,528 | 2025-11-17 | Filing | |
| $13.19 | 1,645 | $21,690.97 | 33,613 | 2025-11-17 | Filing |
Institutional Investors' Holdings
Filing Period:
| No. | Name | Shares | Value | % Port |
|---|---|---|---|---|
| 1. | 203,438 | $2,915,266 | 0% | |
| 2. | 69,833 | $1,000,706 | 0% | |
| 3. | 63,816 | $914,483 | 0% | |
| 4. | 60,526 | $867,499 | 0% | |
| 5. | 50,000 | $716,500 | 0.03% |
News See All
Atara Biotherapeutics, Inc. (NASDAQ:ATRA) Q3 2023 Earnings Call Transcript
Operator: Good morning, and thank you for standing by. Welcome to Atara Biotherapeutics’ Third Quarter 2023 Financial Results Conference Call.
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Atara Biotherapeutics, Inc. (NASDAQ:ATRA) Q3 2022 Earnings Call Transcript
Operator: Good afternoon, everyone. Thank you for standing by, and welcome to the Atara Biotherapeutics Third Quarter 2022 Financial Results Conference Call.
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