Hyllengren Eric J has filed 26 insider transactions across 2 companies since May 2023.
Most recent transaction: a grant/award of 340900 shares of Zura Bio Ltd ($ZURA) on April 01, 2026.
Activity breakdown: 0 open-market purchases and 12 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 1, 2026 | Zura Bio Ltd | $ZURA | Hyllengren Eric J | Chief Financial Officer | A | Employee Share Option (Right to Buy) | 340900 | $0.00 | 340,900.0000 | 94,160,138 | 9999.99% | 0.36% |
| July 15, 2025 | Zura Bio Ltd | $ZURA | Hyllengren Eric J | Chief Financial Officer | A | Employee Share Option (Right to Buy) | 672000 | $0.00 | 672,000.0000 | 94,289,954 | 9999.99% | 0.71% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 496 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.01% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 154 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.00% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 381 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.01% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 350 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.00% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 262 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.00% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 543 | $0.00 | 160.0000 | 7,488,000 | 77.24% | 0.01% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 331 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.00% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 8961 | $0.00 | 2,656.0000 | 7,488,000 | 77.14% | 0.12% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 1900 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.03% |
| March 31, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | Not found | D | Employee Stock Option (Right to Buy) | 460 | $0.00 | 0.0000 | 7,488,000 | 100.00% | 0.01% |
| March 3, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO and COO | S | Common Stock | 1211 | $7.00 | 56,231.0000 | 7,488,000 | 2.11% | 0.02% |
| Jan. 27, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO and COO | A | Common Stock | 34050 | $0.00 | 57,442.0000 | 7,488,000 | 145.56% | 0.45% |
| Nov. 18, 2024 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO and COO | S | Common Stock | 1364 | $11.20 | 23,392.0000 | 7,466,000 | 5.51% | 0.02% |
| Aug. 16, 2024 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO | S | Common Stock | 29 | $6.63 | 24,756.0000 | 4,236,000 | 0.12% | 0.00% |
| Aug. 16, 2024 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO | S | Common Stock | 1041 | $6.63 | 24,785.0000 | 4,236,000 | 4.03% | 0.02% |
| May 16, 2024 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO | S | Common Stock | 28648 | $0.62 | 645,671.0000 | 4,236,000 | 4.25% | 0.68% |
| March 4, 2024 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO | S | Common Stock | 5217 | $0.72 | 674,319.0000 | 4,236,000 | 0.77% | 0.12% |
| March 4, 2024 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO | S | Common Stock | 1462 | $0.72 | 679,536.0000 | 4,236,000 | 0.21% | 0.03% |
| Jan. 8, 2024 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | EVP, CFO | A | Common Stock | 475000 | $0.00 | 680,998.0000 | 4,236,000 | 230.58% | 11.21% |
| Nov. 16, 2023 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | SVP, CFO | S | Common Stock | 11958 | $0.39 | 205,998.0000 | 0 | 5.49% | 0.00% |
| Aug. 16, 2023 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | SVP, CFO | S | Common Stock | 6408 | $1.65 | 219,734.0000 | 0 | 2.83% | 0.00% |
| Aug. 16, 2023 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | SVP, CFO | S | Common Stock | 1778 | $1.65 | 217,956.0000 | 0 | 0.81% | 0.00% |
| May 16, 2023 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | SVP, CFO | S | Common Stock | 6199 | $2.04 | 227,861.0000 | 0 | 2.65% | 0.00% |
| May 16, 2023 | Atara Biotherapeutics, Inc. | $ATRA | Hyllengren Eric J | SVP, CFO | S | Common Stock | 1719 | $2.04 | 226,142.0000 | 0 | 0.75% | 0.00% |