Follow the people · Insider
AnhCo Nguyen
AnhCo Nguyen files insider transactions with the SEC as a president and ceo of Atara Biotherapeutics (ATRA). We hold 3 disclosed purchases and sales filed since 18 August 2023, 1 of them in the last 90 days.
- Files forATRA
- Disclosed buys and sells3 in all, 1 in the last 90 days
- Last disclosure26 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 16 August 2023 — 17 August 2026President and CEO · Atara Biotherapeutics (ATRA)30 Form 4 lines · source: SEC Form 4
Everything they disclosed
30 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 5,062 shares of Atara BiotherapeuticsSEC Form 426 August 2026Common Stock · traded 17 August 2026 · filed 26 August 2026
- ▼ sold on the open market 5,241 shares of Atara BiotherapeuticsSEC Form 420 May 2026Common Stock · traded 18 May 2026 · filed 20 May 2026
- was granted 81,100 shares of Atara BiotherapeuticsSEC Form 411 March 2026Common Stock · traded 9 March 2026 · filed 11 March 2026
- was granted 81,100 shares of Atara BiotherapeuticsSEC Form 411 March 2026Common Stock · traded 9 March 2026 · filed 11 March 2026
- ▼ sold on the open market 198 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 58 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 1,298 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 1,442 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 198 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 58 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 1,298 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 1,442 shares of Atara BiotherapeuticsSEC Form 44 March 2026Common Stock · traded 2 March 2026 · filed 4 March 2026
- ▼ sold on the open market 2,859 shares of Atara BiotherapeuticsSEC Form 419 November 2025Common Stock · traded 17 November 2025 · filed 19 November 2025
- ▼ sold on the open market 56 shares of Atara BiotherapeuticsSEC Form 419 November 2025Common Stock · traded 17 November 2025 · filed 19 November 2025
- ▼ sold on the open market 57 shares of Atara BiotherapeuticsSEC Form 420 August 2025Common Stock · traded 18 August 2025 · filed 20 August 2025
- ▼ sold on the open market 1,281 shares of Atara BiotherapeuticsSEC Form 420 August 2025Common Stock · traded 18 August 2025 · filed 20 August 2025
- ▼ sold on the open market 1,620 shares of Atara BiotherapeuticsSEC Form 420 August 2025Common Stock · traded 18 August 2025 · filed 20 August 2025
- ▼ sold on the open market 3,276 shares of Atara BiotherapeuticsSEC Form 420 May 2025Common Stock · traded 16 May 2025 · filed 20 May 2025
- ▼ sold on the open market 3,331 shares of Atara BiotherapeuticsSEC Form 45 March 2025Common Stock · traded 3 March 2025 · filed 5 March 2025
- ▼ sold on the open market 1,664 shares of Atara BiotherapeuticsSEC Form 420 November 2024Common Stock · traded 18 November 2024 · filed 20 November 2024
- was granted 45,000 shares of Atara BiotherapeuticsSEC Form 411 September 2024Common Stock · traded 9 September 2024 · filed 11 September 2024
- ▼ sold on the open market 1,468 shares of Atara BiotherapeuticsSEC Form 420 August 2024Common Stock · traded 16 August 2024 · filed 20 August 2024
- ▼ sold on the open market 297 shares of Atara BiotherapeuticsSEC Form 420 August 2024Common Stock · traded 16 August 2024 · filed 20 August 2024
- ▼ sold on the open market 56 shares of Atara BiotherapeuticsSEC Form 420 August 2024Common Stock · traded 16 August 2024 · filed 20 August 2024
- ▼ sold on the open market 42,899 shares of Atara BiotherapeuticsSEC Form 420 May 2024Common Stock · traded 16 May 2024 · filed 20 May 2024
- ▼ sold on the open market 10,746 shares of Atara BiotherapeuticsSEC Form 46 March 2024Common Stock · traded 4 March 2024 · filed 6 March 2024
- was granted 675,000 shares of Atara BiotherapeuticsSEC Form 49 January 2024Common Stock · traded 8 January 2024 · filed 9 January 2024
- ▼ sold on the open market 8,856 shares of Atara BiotherapeuticsSEC Form 420 November 2023Common Stock · traded 16 November 2023 · filed 20 November 2023
- ▼ sold on the open market 5,849 shares of Atara BiotherapeuticsSEC Form 418 August 2023Common Stock · traded 16 August 2023 · filed 18 August 2023
- ▼ sold on the open market 9,277 shares of Atara BiotherapeuticsSEC Form 418 August 2023Common Stock · traded 16 August 2023 · filed 18 August 2023
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.