Chief Accounting Officer Yanina Grant-Huerta sold Atara Biotherapeutics ($ATRA) shares on the open market 11 times over the past year, totaling about $70,500. Her most recent sale occurred on March 2, 2026. These transactions rank 10,019th out of nearly 12,000 insiders in the database, well below the average sale value of $8.6 million across 6.4 transactions per insider. She made no open market purchases in this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 9, 2026 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | A | Common Stock | 20300 | $0.00 | 52,050.0000 | 13,564,000 | 63.94% | 0.15% |
| March 2, 2026 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 100 | $5.08 | 31,750.0000 | 13,564,000 | 0.31% | 0.00% |
| March 2, 2026 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 1603 | $5.08 | 32,227.0000 | 13,564,000 | 4.74% | 0.01% |
| March 2, 2026 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 24 | $5.08 | 33,830.0000 | 13,564,000 | 0.07% | 0.00% |
| March 2, 2026 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 377 | $5.08 | 31,850.0000 | 13,564,000 | 1.17% | 0.00% |
| Nov. 17, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 74 | $13.19 | 33,454.0000 | 13,564,000 | 0.22% | 0.00% |
| Nov. 17, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 1645 | $13.19 | 33,613.0000 | 13,564,000 | 4.67% | 0.01% |
| Nov. 17, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 85 | $13.19 | 33,528.0000 | 13,564,000 | 0.25% | 0.00% |
| Aug. 18, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 55 | $11.61 | 37,012.0000 | 7,488,000 | 0.15% | 0.00% |
| Aug. 18, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 1668 | $11.61 | 35,258.0000 | 7,488,000 | 4.52% | 0.02% |
| Aug. 18, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 86 | $11.61 | 36,926.0000 | 7,488,000 | 0.23% | 0.00% |
| May 16, 2025 | Atara Biotherapeutics, Inc. | $ATRA | Grant-Huerta Yanina | Chief Accounting Officer | S | Common Stock | 2218 | $6.76 | 37,067.0000 | 7,488,000 | 5.65% | 0.03% |