Nguyen Anhco Insider Trading Activity
Nguyen Anhco has been net-selling over the last 12 months with 0 purchases and 10 sales across 1 company.
ATRA is the most-traded position with 10 trades. The largest single transaction was a sale of ATRA for $48K on May 18, 2026.
Performance Scorecard
Forward stock performance after each transaction by Nguyen Anhco. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -7.7% | 30% | 10 |
| 90 days | — | -29.4% | 22% | 9 |
| 120 days | — | -59.6% | 22% | 9 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersATRA · Atara Biotherapeutics, Inc.
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
May 18, 2026 | ATRA | Sell | 5,241 | $9.13 | $48K | −3.7% | CEO | |
Mar 2, 2026 | ATRA | Sell | 198 | $5.08 | $1K | −0.3% | CEO | |
Mar 2, 2026 | ATRA | Sell | 58 | $5.08 | $294.64 | −0.1% | CEO | |
Mar 2, 2026 | ATRA | Sell | 1,298 | $5.09 | $7K | −2.0% | CEO | |
Mar 2, 2026 | ATRA | Sell | 1,442 | $5.09 | $7K | −2.3% | CEO | |
Nov 17, 2025 | ATRA | Sell | 2,859 | $13.19 | $38K | −4.2% | CEO | |
Nov 17, 2025 | ATRA | Sell | 56 | $13.19 | $738.528 | −0.1% | CEO | |
Aug 18, 2025 | ATRA | Sell | 57 | $11.61 | $661.941 | −0.1% | CEO | |
Aug 18, 2025 | ATRA | Sell | 1,281 | $11.62 | $15K | −1.8% | CEO | |
Aug 18, 2025 | ATRA | Sell | 1,620 | $11.62 | $19K | −2.3% | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| ATRA | Atara Biotherapeutics, Inc. | 10 | $136K |
Other insiders at Atara Biotherapeutics, Inc.
2 other tracked filers at ATRA.