As of September 29, 2026, Immucell's top three insider holders are Michael F Brigham (Director, 205.70K shares), Joseph H Crabb (Former Vp And Cso, 142.84K shares), David Scott Tomsche (Director, 131.80K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | David Scott Tomsche | Director | 478,261 | 4,740 | 483,001 | 54.9% | 28 Nov, 2025 |
| 2 | Michael F Brigham | Director | 205,700 | 0 | 205,700 | 23.4% | 24 Mar, 2026 |
| 3 | Joseph H Crabb | Former Vp And Cso | 142,845 | 0 | 142,845 | 16.2% | 14 Mar, 2022 |
| 4 | Boekhorst Paul Francis Olivier Te | President And Ceo | 27,523 | 0 | 27,523 | 3.1% | 22 Jun, 2026 |
| 5 | David Cunningham | Director | 16,000 | 0 | 16,000 | 1.8% | 14 Jun, 2022 |
| 6 | Gloria F Basse | Director | 3,530 | 0 | 3,530 | 0.4% | 13 Jun, 2025 |
| 7 | Bryan K. Gathagan | Director | 1,000 | 0 | 1,000 | 0.1% | 12 Jun, 2025 |
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 |
|---|---|---|---|---|---|---|---|---|
| 18 Jun, 2026 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired P | 8,000 | $9.50 | $75.96K | 17,785 | Direct |
| 15 Apr, 2026 | Gloria F Basse | Director | Acquired A | 11,933 | $0.00 | $0 | 11,933 | Direct |
| 15 Apr, 2026 | David Scott Tomsche | Director | Acquired A | 11,933 | $0.00 | $0 | 11,933 | Direct |
| 15 Apr, 2026 | Paul R Wainman | Director | Acquired A | 11,933 | $0.00 | $0 | 11,933 | Direct |
| 15 Apr, 2026 | Kathy V Turner | Director | Acquired A | 17,899 | $0.00 | $0 | 17,899 | Direct |
| 20 Mar, 2026 | Michael F Brigham | Director | Acquired M | 25,000 | $5.84 | $146.00K | 229,752 | Direct |
| 20 Mar, 2026 | Michael F Brigham | Director | Disposed F | 24,052 | $6.07 | $146.00K | 205,700 | Direct |
| 20 Mar, 2026 | Michael F Brigham | Director | Disposed M | 25,000 | $0.00 | $0 | 0 | Direct |
| 27 Jan, 2026 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired A | 109,500 | $0.00 | $0 | 109,500 | Direct |
| 27 Jan, 2026 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired A | 110,000 | $0.00 | $0 | 110,000 | Direct |
| 27 Jan, 2026 | Timothy C Fiori | Chief Financial Officer | Acquired A | 120,000 | $0.00 | $0 | 120,000 | Direct |
| 27 Jan, 2026 | Bobbi Jo Brockmann | Vp Of Sales And Marketing | Acquired A | 100,000 | $0.00 | $0 | 100,000 | Direct |
| 03 Dec, 2025 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired P | 3,598 | $5.05 | $18.15K | 7,306 | Direct |
| 04 Dec, 2025 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired P | 2,432 | $5.50 | $13.38K | 9,738 | Direct |
| 02 Dec, 2025 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired P | 3,708 | $4.87 | $18.05K | 3,708 | Direct |
| 03 Dec, 2025 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired P | 2,556 | $5.00 | $12.79K | 6,264 | Direct |
| 03 Dec, 2025 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired P | 3,521 | $5.04 | $17.75K | 9,785 | Direct |
| 25 Nov, 2025 | David Scott Tomsche | Director | Acquired P | 1,633 | $4.76 | $7.77K | 52,720 | Direct |
| 25 Nov, 2025 | David Scott Tomsche | Director | Acquired P | 1,633 | $4.77 | $7.78K | 4,740 | Indirect |
| 07 Nov, 2025 | Boekhorst Paul Francis Olivier Te | President And Ceo | Acquired A | 74,277 | $6.10 | $453.09K | 150,260 | Direct |