Atara Biotherapeutics, Inc. - ATRA
Insiders (Form 4) · last 180 days · showing up to 200 transactions
· Form 144 is shown in the SEC filings tab
· Updating…
Visible: 0
Transaction codes:
P = Open-market purchase ·
S = Open-market sale ·
A = Grant/award ·
M = Exercise/conversion of derivative ·
G = Gift ·
F = Tax withholding ·
J = Other ·
A/D:
A = Acquired (buy/receive) ·
D = Disposed (sell/give)
| Filed | Owner | Title | Code | A/D | Shares | Price | Value | Shares after | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Sep 04, 2026 | — | P | A | 104,166.0 | 9.6 | 999,993.6 | 166,486.0 | View | |
| Aug 26, 2026 | President and CEO | S | D | 5,062.0 | 8.0764 | 40,882.74 | 132,775.0 | View | |
| Jul 24, 2026 | — | M | D | 55,387.0 | 0.0 | 0.0 | 0.0 | View | |
| Jul 24, 2026 | — | M | D | 38,735.0 | 0.0 | 0.0 | 0.0 | View | |
| Jul 24, 2026 | — | M | D | 101,089.0 | 0.0 | 0.0 | 0.0 | View | |
| Jul 24, 2026 | — | F | D | 60.0 | — | — | 636,852.0 | View | |
| Jul 24, 2026 | — | M | A | 195,211.0 | — | — | 636,912.0 | View | |
| Jun 15, 2026 | — | A | A | 24,000.0 | 0.0 | 0.0 | 62,320.0 | View | |
| Jun 11, 2026 | — | A | A | 12,000.0 | 0.0 | 0.0 | 34,188.0 | View | |
| Jun 11, 2026 | — | A | A | 12,000.0 | 0.0 | 0.0 | 30,188.0 | View | |
| Jun 11, 2026 | — | A | A | 12,000.0 | 0.0 | 0.0 | 12,000.0 | View | |
| May 20, 2026 | President and CEO | S | D | 5,241.0 | 9.1289 | 47,844.56 | 137,837.0 | View | |
| May 20, 2026 | Chief Accounting Officer | S | D | 2,414.0 | 9.1286 | 22,036.44 | 49,636.0 | View | |
| May 11, 2026 | — | S | D | 313,446.0 | 10.0975 | 3,165,020.99 | 1,011,000.0 | View | |
| May 11, 2026 | — | P | A | 507,407.0 | 9.35 | 4,744,255.45 | 1,552,000.0 | View |