Heyburn William A. (CIK 1859732) reported 19 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-09-10). Recent activity: Sell SRTA (31,671 shares), Buy SRTA (181,071 shares), Buy SRTA (179,160 shares), Sell SRTA (199,209 shares), Sell SRTA (31,671 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-10 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 31,671 | $168,173 |
| 2026-08-03 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Buy | 181,071 | $0 |
| 2026-08-03 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Buy | 179,160 | $0 |
| 2026-08-03 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 199,209 | $1.0M |
| 2026-06-18 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 31,671 | $185,909 |
| 2026-06-10 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 31,671 | $185,909 |
| 2026-04-27 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Buy | 545,625 | $0 |
| 2026-04-27 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 301,731 | $1.5M |
| 2026-03-10 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 31,314 | $142,166 |
| 2025-12-12 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 35,348 | $154,824 |
| 2025-12-10 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Buy | 17,000 | $75,990 |
| 2025-11-05 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Buy | 181,072 | $0 |
| 2025-11-05 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 100,133 | $503,669 |
| 2025-09-12 | Strata Critical Medical, Inc. (SRTA) | Co-CEO and CFO | Sell | 35,348 | $141,392 |
| 2025-08-05 | Blade Air Mobility, Inc. (BLDE) | Chief Financial Officer | Buy | 139,286 | $0 |
| 2025-08-05 | Blade Air Mobility, Inc. (BLDE) | Chief Financial Officer | Sell | 76,177 | $303,946 |
| 2025-08-05 | Blade Air Mobility, Inc. (BLDE) | Chief Financial Officer | Sell | 46,918 | $231,775 |
| 2025-06-11 | Blade Air Mobility, Inc. (BLDE) | Chief Financial Officer | Sell | 100,000 | $407,000 |
| 2025-06-11 | Blade Air Mobility, Inc. (BLDE) | Chief Financial Officer | Sell | 35,348 | $134,322 |
来源：SEC Form 4 申报文件 · 截至 2026-09-10