Hyllengren Eric J insider trades
Hyllengren Eric J has filed 14 Form 4s with the SEC that we hold, for Atara Biotherapeutics, Inc. (ATRA) (Reporting owner), Zura Bio Ltd (ZURA) (Chief Financial Officer) and Tenaya Therapeutics, Inc. (TNYA) (Chief Financial Officer). Across all of them we count 0 purchases worth $0 and 12 sales worth $87.7K reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 28,648 shares of Atara Biotherapeutics, Inc. worth $17.8K, dated 2024-05-16. The first filing on our record is dated 2023-05-18 and the latest 2026-07-14.
Atara Biotherapeutics, Inc. (ATRA)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2023-05-16 | S, sale reported on Form 4 | 1,719 | $3.5K | 2023-05-18 |
| 2023-05-16 | S, sale reported on Form 4 | 6,199 | $12.6K | 2023-05-18 |
| 2023-08-16 | S, sale reported on Form 4 | 6,408 | $10.6K | 2023-08-18 |
| 2023-08-16 | S, sale reported on Form 4 | 1,778 | $2.9K | 2023-08-18 |
| 2023-11-16 | S, sale reported on Form 4 | 11,958 | $4.7K | 2023-11-20 |
| 2024-03-04 | S, sale reported on Form 4 | 1,462 | $1.1K | 2024-03-06 |
| 2024-03-04 | S, sale reported on Form 4 | 5,217 | $3.8K | 2024-03-06 |
| 2024-05-16 | S, sale reported on Form 4 | 28,648 | $17.8K | 2024-05-20 |
| 2024-08-16 | S, sale reported on Form 4 | 29 | $192 | 2024-08-20 |
| 2024-08-16 | S, sale reported on Form 4 | 1,041 | $6.9K | 2024-08-20 |
| 2024-11-18 | S, sale reported on Form 4 | 1,364 | $15.3K | 2024-11-20 |
| 2025-03-03 | S, sale reported on Form 4 | 1,211 | $8.5K | 2025-03-05 |
Zura Bio Ltd (ZURA)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Tenaya Therapeutics, Inc. (TNYA)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Counted from the Form 4 filings this reporting owner (SEC CIK 1966926) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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