| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
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President And CEO | EVP, Chief Sci. &Tech Officer
1 company
Nguyen Anhco is a President And CEO at Atara Biotherapeutics, Inc.. Recent SEC Form 4 filings include 0 buys and 16 sells.
Estimated insider holdings value: $1.2M based on current market prices.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Nov 17, 2025 | ATRA Atara Biotherapeutics, Inc. | President And CEO | Sell | 2,915 | $13.19 | $38,437.30 | -2.2% | -65.7% | - | |
| Aug 18, 2025 | ATRA Atara Biotherapeutics, Inc. | President And CEO | Sell | 2,958 | $11.62 | $34,360.30 | -1.4% | +14.1% | - | |
| May 16, 2025 | ATRA Atara Biotherapeutics, Inc. | President And CEO | Sell | 3,276 | $6.76 | $22,155.59 | -4.4% | +71.3% | - | |
| Mar 3, 2025 | ATRA Atara Biotherapeutics, Inc. | President And CEO | Sell | 3,331 | $7.00 | $23,307.01 | -4.3% | +14.3% | -22.6% | |
| Nov 18, 2024 | ATRA Atara Biotherapeutics, Inc. | President And CEO | Sell | 1,664 | $11.20 | $18,633.47 | -2.1% | -28.7% | +18.8% | |
| Aug 16, 2024 | ATRA Atara Biotherapeutics, Inc. | EVP, Chief Sci. &Tech Officer | Sell | 1,821 | $6.63 | $12,071.82 | -1.7% | +82.2% | +75.3% | |
| May 16, 2024 | ATRA Atara Biotherapeutics, Inc. | EVP, Chief Sci. &Tech Officer | Sell | 42,899 | $0.62 | $26,468.68 | -4.6% | -48.8% | -54.7% | |
| Mar 4, 2024 | ATRA Atara Biotherapeutics, Inc. | EVP, Chief Sci. &Tech Officer | Sell | 10,746 | $0.72 | $7,737.12 | -1.1% | -23.0% | -62.0% | |
| Nov 16, 2023 | ATRA Atara Biotherapeutics, Inc. | EVP, Chief Sci. &Tech Officer | Sell | 8,856 | $0.39 | $3,444.98 | -3.1% | +60.3% | -0.1% | |
| Aug 16, 2023 | ATRA Atara Biotherapeutics, Inc. | EVP, Chief Sci. &Tech Officer | Sell | 15,126 | $1.65 | $24,997.43 | -2.5% | -79.4% | -83.8% |