Strata Critical Medical's top three insider shareholders as of August 29, 2026 are Robert S Wiesenthal (Chief Executive Officer, 5.33Mn shares), Melissa M. Tomkiel (Co Ceo And General Counsel, 2.10Mn shares), William A. Heyburn (Co Ceo And Cfo, 1.71Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Robert S Wiesenthal | Chief Executive Officer | 5,325,896 | 0 | 5,325,896 | 37.5% | 03 Aug, 2026 |
| 2 | Melissa M. Tomkiel | Co Ceo And General Counsel | 2,516,932 | 0 | 2,516,932 | 17.7% | 03 Aug, 2026 |
| 3 | William A. Heyburn | Co Ceo And Cfo | 2,198,457 | 0 | 2,198,457 | 15.5% | 03 Aug, 2026 |
| 4 | Louis R. Verdetto | Ceo Keystone Perfusion Service | 1,133,793 | 0 | 1,133,793 | 8.0% | 04 Dec, 2025 |
| 5 | Scott M Wunsch | Ceo, Logistics | 668,754 | 0 | 668,754 | 4.7% | 03 Aug, 2026 |
| 6 | Brandon A. Keene | Chief Innovation Officer | 495,668 | 0 | 495,668 | 3.5% | 21 Nov, 2022 |
| 7 | Seth J Bacon | Ceo, Trinity Air Medical | 340,785 | 0 | 340,785 | 2.4% | 17 Jun, 2024 |
| 8 | Edward M Philip | Director | 265,078 | 0 | 265,078 | 1.9% | 03 Aug, 2026 |
| 9 | John Borthwick | Director | 203,977 | 0 | 203,977 | 1.4% | 05 Aug, 2025 |
| 10 | Amir Cohen | Chief Accounting Officer | 181,799 | 0 | 181,799 | 1.3% | 03 Aug, 2026 |
| 11 | Andrew Lauck | Director | 170,902 | 0 | 170,902 | 1.2% | 03 Aug, 2026 |
| 12 | Eric Affeldt | Director | 165,964 | 0 | 165,964 | 1.2% | 05 Aug, 2025 |
| 13 | Kenneth B Lerer | Director | 165,964 | 0 | 165,964 | 1.2% | 05 Aug, 2025 |
| 14 | Reginald Love | Director | 146,481 | 0 | 146,481 | 1.0% | 13 Aug, 2026 |
| 15 | Anatoli Arkhipenko | Chief Technology Officer | 111,754 | 0 | 111,754 | 0.8% | 14 Nov, 2022 |
| 16 | William L. Iii Cook | Director | 97,671 | 0 | 97,671 | 0.7% | 03 Aug, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 10 Aug, 2026 | Reginald Love | Director | Disposed S | 5,091 | $5.75 | $29.27K | 146,481 | Direct |
| 30 Jul, 2026 | Reginald Love | Director | Acquired A | 37,675 | $0.00 | $0 | 151,572 | Direct |
| 30 Jul, 2026 | Edward M Philip | Director | Acquired A | 30,913 | $0.00 | $0 | 265,078 | Direct |
| 30 Jul, 2026 | William L. Iii Cook | Director | Acquired A | 44,438 | $0.00 | $0 | 97,671 | Direct |
| 30 Jul, 2026 | Melissa M. Tomkiel | Co Ceo And General Counsel | Acquired A | 208,929 | $0.00 | $0 | 2,101,703 | Direct |
| 30 Jul, 2026 | William A. Heyburn | Co Ceo And Cfo | Acquired A | 181,071 | $0.00 | $0 | 1,730,068 | Direct |
| 30 Jul, 2026 | Andrew Lauck | Director | Acquired A | 35,260 | $0.00 | $0 | 170,902 | Direct |
| 30 Jul, 2026 | Amir Cohen | Chief Accounting Officer | Acquired A | 41,786 | $0.00 | $0 | 188,394 | Direct |
| 30 Jul, 2026 | Scott M Wunsch | Ceo, Logistics | Acquired A | 57,172 | $0.00 | $0 | 682,746 | Direct |
| 30 Jul, 2026 | Robert S Wiesenthal | Director | Acquired A | 50,234 | $0.00 | $0 | 5,325,896 | Direct |
| 30 Jul, 2026 | William A. Heyburn | Co Ceo And Cfo | Acquired A | 179,160 | $0.00 | $0 | 1,909,228 | Direct |
| 30 Jul, 2026 | Melissa M. Tomkiel | Co Ceo And General Counsel | Acquired A | 206,953 | $0.00 | $0 | 2,308,656 | Direct |
| 30 Jul, 2026 | Amir Cohen | Chief Accounting Officer | Acquired A | 27,420 | $0.00 | $0 | 215,814 | Direct |
| 31 Jul, 2026 | Scott M Wunsch | Ceo, Logistics | Disposed F | 13,992 | $5.09 | $71.22K | 668,754 | Direct |
| 31 Jul, 2026 | Melissa M. Tomkiel | Co Ceo And General Counsel | Disposed F | 212,309 | $5.09 | $1.08Mn | 2,096,347 | Direct |
| 31 Jul, 2026 | Amir Cohen | Chief Accounting Officer | Disposed F | 34,015 | $5.09 | $173.14K | 181,799 | Direct |
| 31 Jul, 2026 | William A. Heyburn | Co Ceo And Cfo | Disposed F | 199,209 | $5.09 | $1.01Mn | 1,710,019 | Direct |
| 08 Jun, 2026 | William A. Heyburn | Co Ceo And Cfo | Disposed F | 31,671 | $5.87 | $185.91K | 1,548,997 | Direct |
| 08 Jun, 2026 | Scott M Wunsch | Ceo, Logistics | Disposed F | 5,550 | $5.87 | $32.58K | 625,574 | Direct |
| 08 Jun, 2026 | Amir Cohen | Chief Accounting Officer | Disposed F | 4,655 | $5.87 | $27.32K | 146,608 | Direct |