Follow the people · Insider
Brian N. Cherry
Brian N. Cherry files insider transactions with the SEC as a director of Atara Biotherapeutics (ATRA). We hold 1 disclosed purchase or sale filed since 13 January 2026, 1 of them in the last 90 days.
- Files forATRA
- Disclosed buys and sells1 in all, 1 in the last 90 days
- Last disclosure4 September 2026
Positions held
2 posts we hold — a term names its own dates; a run of filings only says when they filed- Filed 11 June 2026 — 4 September 2026Director · Atara Biotherapeutics (ATRA)2 Form 4 lines · source: SEC Form 4
- Filed 12 January 2026 — 12 January 2026Director · Zymeworks (ZYME)4 Form 4 lines · source: SEC Form 4
Everything they disclosed
6 entries, newest first — one per disclosure report, one per Form 4 line- ▲ bought on the open market 104,166 shares of Atara BiotherapeuticsSEC Form 44 September 2026Common Stock · traded 4 September 2026 · filed 4 September 2026
- was granted 24,000 shares of Atara BiotherapeuticsSEC Form 415 June 2026Common Stock · traded 11 June 2026 · filed 15 June 2026
- was granted 23,000 shares of Zymeworks (a derivative holding)SEC Form 413 January 2026Stock Option (Right to Buy) · traded 12 January 2026 · filed 13 January 2026
- was granted 15,400 shares of Zymeworks (a derivative holding)SEC Form 413 January 2026Restricted Stock Unit · traded 12 January 2026 · filed 13 January 2026
- was granted 23,000 shares of Zymeworks (a derivative holding)SEC Form 413 January 2026Stock Option (Right to Buy) · traded 12 January 2026 · filed 13 January 2026
- was granted 15,400 shares of Zymeworks (a derivative holding)SEC Form 413 January 2026Restricted Stock Unit · traded 12 January 2026 · filed 13 January 2026
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.