William A. Heyburn
CIK: 0001859732
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Strata Critical Medical, Inc.
Discretionary Trading P&L
Holdings
Transaction History (33 total)
- Sep 24, 2026SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct98.4K shares at avg. $5.27$518K - Sep 24, 2026SRTA
Strata Critical Medical, Inc.
Award(A)Direct177.9K shares- - Sep 8, 2026SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct31.7K shares at avg. $5.31$168K - Jul 31, 2026SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct199.2K shares at avg. $5.09$1.0M - Jul 30, 2026SRTA
Strata Critical Medical, Inc.
Award(A)Direct179.2K shares- - Jul 30, 2026SRTA
Strata Critical Medical, Inc.
Award(A)Direct181.1K shares- - Jun 8, 2026SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct31.7K shares at avg. $5.87$186K - Jun 8, 2026SRTA
Strata Critical Medical, Inc.
Sale(S)Direct31.7K shares at avg. $5.87$186K - Apr 24, 2026SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct301.7K shares at avg. $4.92$1.5M - Apr 23, 2026SRTA
Strata Critical Medical, Inc.
Award(A)Direct545.6K shares- - Mar 8, 2026SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct31.3K shares at avg. $4.54$142K - Dec 10, 2025SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct35.3K shares at avg. $4.38$155K - Dec 9, 2025SRTA
Strata Critical Medical, Inc.
Purchase(P)Direct17K shares at avg. $4.47$76K - Nov 3, 2025SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct100.1K shares at avg. $5.03$504K - Oct 31, 2025SRTA
Strata Critical Medical, Inc.
Award(A)Direct181.1K shares- - Sep 10, 2025SRTA
Strata Critical Medical, Inc.
Tax Payment(F)Direct35.3K shares at avg. $4.00$141K - Aug 4, 2025BLDE
Blade Air Mobility, Inc.
Sale(S)Direct46.9K shares at avg. $4.94$232K - Aug 1, 2025BLDE
Blade Air Mobility, Inc.
Tax Payment(F)Direct76.2K shares at avg. $3.99$304K - Aug 1, 2025BLDE
Blade Air Mobility, Inc.
Award(A)Direct139.3K shares- - Jun 10, 2025BLDE
Blade Air Mobility, Inc.
Tax Payment(F)Direct35.3K shares at avg. $3.80$134K - Jun 9, 2025BLDE
Blade Air Mobility, Inc.
Sale(S)Direct100K shares at avg. $4.07$407K - Mar 13, 2025BLDE
Blade Air Mobility, Inc.
Award(A)Direct222.9K shares- - Mar 13, 2025BLDE
Blade Air Mobility, Inc.
Tax Payment(F)Direct124.4K shares at avg. $3.12$388K - Mar 13, 2025BLDE
Blade Air Mobility, Inc.
Tax Payment(F)Direct35.7K shares at avg. $3.12$111K - Jan 8, 2025BLDE
Blade Air Mobility, Inc.
Exercise(M)Direct175K shares at avg. $0.18$32K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 24, 2026 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 98,356 | $5.27 | $518,336 | Direct |
| Sep 24, 2026 | SRTA Strata Critical Medical, Inc. | Award(A) | 177,858 | - | $0 | Direct |
| Sep 8, 2026 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 31,671 | $5.31 | $168,173 | Direct |
| Jul 31, 2026 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 199,209 | $5.09 | $1,013,974 | Direct |
| Jul 30, 2026 | SRTA Strata Critical Medical, Inc. | Award(A) | 179,160 | - | $0 | Direct |
| Jul 30, 2026 | SRTA Strata Critical Medical, Inc. | Award(A) | 181,071 | - | $0 | Direct |
| Jun 8, 2026 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 31,671 | $5.87 | $185,909 | Direct |
| Jun 8, 2026 | SRTA Strata Critical Medical, Inc. | Sale(S) | 31,671 | $5.87 | $185,909 | Direct |
| Apr 24, 2026 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 301,731 | $4.92 | $1,484,517 | Direct |
| Apr 23, 2026 | SRTA Strata Critical Medical, Inc. | Award(A) | 545,625 | - | $0 | Direct |
| Mar 8, 2026 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 31,314 | $4.54 | $142,166 | Direct |
| Dec 10, 2025 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 35,348 | $4.38 | $154,824 | Direct |
| Dec 9, 2025 | SRTA Strata Critical Medical, Inc. | Purchase(P) | 17,000 | $4.47 | $76,044 | Direct |
| Nov 3, 2025 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 100,133 | $5.03 | $503,669 | Direct |
| Oct 31, 2025 | SRTA Strata Critical Medical, Inc. | Award(A) | 181,072 | - | - | Direct |
| Sep 10, 2025 | SRTA Strata Critical Medical, Inc. | Tax Payment(F) | 35,348 | $4.00 | $141,392 | Direct |
| Aug 4, 2025 |  BLDE Blade Air Mobility, Inc. | Sale(S) | 46,918 | $4.94 | $231,822 | Direct |
| Aug 1, 2025 | BLDE Blade Air Mobility, Inc. | Tax Payment(F) | 76,177 | $3.99 | $303,946 | Direct |
| Aug 1, 2025 | BLDE Blade Air Mobility, Inc. | Award(A) | 139,286 | - | - | Direct |
| Jun 10, 2025 | BLDE Blade Air Mobility, Inc. | Tax Payment(F) | 35,348 | $3.80 | $134,322 | Direct |
| Jun 9, 2025 | BLDE Blade Air Mobility, Inc. | Sale(S) | 100,000 | $4.07 | $406,590 | Direct |
| Mar 13, 2025 | BLDE Blade Air Mobility, Inc. | Award(A) | 222,857 | - | - | Direct |
| Mar 13, 2025 | BLDE Blade Air Mobility, Inc. | Tax Payment(F) | 124,396 | $3.12 | $388,116 | Direct |
| Mar 13, 2025 | BLDE Blade Air Mobility, Inc. | Tax Payment(F) | 35,679 | $3.12 | $111,318 | Direct |
| Jan 8, 2025 | BLDE Blade Air Mobility, Inc. | Exercise(M) | 175,000 | $0.18 | $31,500 | Direct |
1-25 of 33 transactions
About Heyburn William A.
Heyburn William A. (SEC CIK 0001859732) files insider reports with the SEC as Co-CEO and CFO of Strata Critical Medical, Inc. (SRTA).
Signal8 holds 20 ownership filings by Heyburn William A., all Form 4s, filed between Sep 13, 2024 and Sep 25, 2026. Those filings report 33 transactions, from Sep 11, 2024 to Sep 24, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Heyburn William A.'s filings is in NEW YORK, NY.
Recent filings by Heyburn William A.
- Sep 24, 2026: Tax withholding of SRTA shares (Form 4, code F).
- Sep 24, 2026: Grant or award of SRTA shares (Form 4, code A).
- Sep 8, 2026: Tax withholding of SRTA shares (Form 4, code F).
- Jul 31, 2026: Tax withholding of SRTA shares (Form 4, code F).
- Jul 30, 2026: Grants or awards of SRTA shares (2 lines, Form 4, code A).
Other insiders filing for Strata Critical Medical, Inc. (SRTA)
- Wunsch Scott M, CEO, Logistics
- Tomkiel Melissa M., Co-CEO and General Counsel
- Verdetto Louis R., CEO, Clinical Services
- Cohen Amir, Chief Accounting Officer
- Love Reginald, Director
- Cook William L. III, Director