Nguyen AnhCo — SEC Form 4 filings
SEC reporting owner CIK 1977970. 14 Form 4 filings on record with FilingPulse; latest filed 2026-08-26.
Transaction summary — filings shown
Covers all 14 filings on record, filed 2024-01-09 to 2026-08-26. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 19 legs across 11 filings — 82,909 shares, $287,136 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 3.
- Largest priced transaction: sale of 5,241 shares @ $9.13 ($47,845) in Atara Biotherapeutics, Inc., filed 2026-05-20.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Atara Biotherapeutics, Inc. (ATRA) | President and CEO, Director | 14 | — | 19 legs · 82,909 sh · $287,136 | 3 |
Form 4 filings — Nguyen AnhCo
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-26 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 5,062 @ $8.08 | EDGAR |
| 2026-05-20 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 5,241 @ $9.13 | EDGAR |
| 2026-03-11 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Grant/award (A): 81,100 @ $0 | EDGAR |
| 2026-03-04 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 198 @ $5.08 · Sale (S): 58 @ $5.08 · Sale (S): 1,298 @ $5.09 · Sale (S): 1,442 @ $5.09 | EDGAR |
| 2025-11-19 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 2,859 @ $13.19 · Sale (S): 56 @ $13.19 | EDGAR |
| 2025-08-20 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 57 @ $11.61 · Sale (S): 1,281 @ $11.62 · Sale (S): 1,620 @ $11.62 | EDGAR |
| 2025-05-20 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 3,276 @ $6.76 | EDGAR |
| 2025-03-05 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 3,331 @ $7.00 | EDGAR |
| 2024-11-20 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 1,664 @ $11.20 | EDGAR |
| 2024-09-11 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Grant/award (A): 45,000 @ $0 | EDGAR |
| 2024-08-20 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 1,468 @ $6.63 · Sale (S): 297 @ $6.63 · Sale (S): 56 @ $6.63 | EDGAR |
| 2024-05-20 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 42,899 @ $0.62 | EDGAR |
| 2024-03-06 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Sale (S): 10,746 @ $0.72 | EDGAR |
| 2024-01-09 | 4 | Atara Biotherapeutics, Inc. (ATRA) | Grant/award (A): 675,000 @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-09 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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