Eric J. Hyllengren is EVP & CFO and COO at Atara Biotherapeutics, Inc. (ATRA). They have made 8 open-market trades across 1 company since 2023, most recently 2025-03-03.
CIK 0001966926
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ATRA | 56,231 | $474K |
Shares reported on the most recent Form 4, priced at the 2025-03-05 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ATRA | SELL | 2025-03-03 | 2025-03-05 | $7.00 | $8K | -0.4% | -22.4% | +16.5% |
| ATRA | SELL | 2024-11-18 | 2024-11-20 | $11.20 | $15K | +18.5% | +6.2% | -24.7% |
| ATRA | SELL | 2024-08-16 | 2024-08-20 | $6.63 | $7K | +4.8% | +9.4% | +56.3% |
| ATRA | SELL | 2024-05-16 | 2024-05-20 | $0.62 | $18K | -19.9% | -49.1% | -58.9% |
| ATRA | SELL | 2024-03-04 | 2024-03-06 | $0.72 | $5K | -17.3% | +7.5% | -21.1% |
| ATRA | SELL | 2023-11-16 | 2023-11-20 | $0.39 | $5K | +17.7% | +0.6% | +52.7% |
| ATRA | SELL | 2023-08-16 | 2023-08-18 | $1.65 | $14K | -2.7% | +4.0% | -68.0% |
| ATRA | SELL | 2023-05-16 | 2023-05-18 | $2.04 | $16K | -26.4% | -8.2% | -18.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.