Billionaire Seth Klarman’s Biotech Stock Picks
In this article, we discuss billionaire Seth Klarman’s biotech stock picks.
Atara Biotherapeutics Inc. (ATRA)
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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 | $4,424,973 | 0.26% | |
| 2. | Redmile Group Jeremy Green | 441,701 | $3,409,932 | 0.36% | |
| 3. | Vestal Point Capital Ryan Wilder | 94,085 | $726,336 | 0.04% | |
| 4. | Marshall Wace LLP Paul Marshall And Ian Wace | 42,355 | $326,981 | 0% | |
| 5. | Citadel Investment Group Ken Griffin | 23,003 | $177,583 | 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 |
|---|---|---|---|---|---|---|
| $11.62 | 1,620 | $18,819.54 | 67,889 | 2025-08-18 | Filing | |
| $11.62 | 1,281 | $14,878.82 | 69,509 | 2025-08-18 | Filing | |
| $11.61 | 57 | $661.94 | 70,790 | 2025-08-18 | Filing | |
| $11.61 | 1,668 | $19,372.15 | 35,258 | 2025-08-18 | Filing | |
| $11.61 | 86 | $998.72 | 36,926 | 2025-08-18 | Filing |
Institutional Investors' Holdings
Filing Period:
| No. | Name | Shares | Value | % Port |
|---|---|---|---|---|
| 1. | 190,761 | $1,472,675 | 0% | |
| 2. | 75,000 | $579,000 | 0.02% | |
| 3. | 70,848 | $546,946 | 0% | |
| 4. | 60,136 | $464,329 | 0% | |
| 5. | 25,253 | $194,953 | 0% |
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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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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