Adma Biologics's top three insider shareholders as of September 29, 2026 are Adam S Grossman (President And Ceo, 2.11Mn shares), Steve Elms (Director, 2.05Mn shares), Adam S Grossman (President And Ceo, 1.14Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Adam S Grossman | President And Ceo | 2,112,777 | 0 | 2,112,777 | 31.0% | 17 Mar, 2026 |
| 2 | Steve Elms | Director | 0 | 2,045,730 | 2,045,730 | 30.1% | 09 Mar, 2026 |
| 3 | Brian Lenz | Evp, Cfo | 703,002 | 0 | 703,002 | 10.3% | 08 Mar, 2024 |
| 4 | Jerrold B Grossman | Director | 520,284 | 0 | 520,284 | 7.6% | 28 May, 2026 |
| 5 | Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | 443,061 | 0 | 443,061 | 6.5% | 28 Jul, 2026 |
| 6 | Young Kwon | Director | 263,020 | 0 | 263,020 | 3.9% | 11 Feb, 2026 |
| 7 | Brad L. Tade | Cfo And Treasurer | 232,940 | 0 | 232,940 | 3.4% | 23 Feb, 2026 |
| 8 | Terry Kohler | Cfo And Treasurer | 143,149 | 0 | 143,149 | 2.1% | 17 Jul, 2026 |
| 9 | Lawrence P. Guiheen | Director | 105,520 | 30,000 | 135,520 | 2.0% | 17 Mar, 2026 |
| 10 | Bryant Fong | Director | 83,941 | 0 | 83,941 | 1.2% | 28 Feb, 2024 |
| 11 | Martha J Demski | Director | 0 | 56,601 | 56,601 | 0.8% | 08 Mar, 2023 |
| 12 | Alison Cecily Finger | Director | 45,619 | 0 | 45,619 | 0.7% | 11 Feb, 2026 |
| 13 | Eduardo Rene Salas | Director | 21,579 | 0 | 21,579 | 0.3% | 11 Feb, 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 |
|---|---|---|---|---|---|---|---|---|
| 24 Jul, 2026 | Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | Disposed F | 3,177 | $8.37 | $26.59K | 443,061 | Direct |
| 16 Jul, 2026 | Terry Kohler | Cfo And Treasurer | Acquired A | 85,130 | $0.00 | $0 | 143,149 | Direct |
| 16 Jul, 2026 | Terry Kohler | Cfo And Treasurer | Acquired A | 136,363 | $0.00 | $0 | 136,363 | Direct |
| 27 May, 2026 | Jerrold B Grossman | Director | Acquired P | 6,400 | $7.91 | $50.62K | 520,284 | Direct |
| 12 May, 2026 | Jerrold B Grossman | Director | Acquired P | 12,500 | $8.01 | $100.13K | 513,884 | Direct |
| 11 May, 2026 | Jerrold B Grossman | Director | Acquired P | 12,500 | $8.01 | $100.13K | 501,384 | Direct |
| 01 Apr, 2026 | Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | Disposed F | 20,362 | $9.11 | $185.50K | 446,238 | Direct |
| 16 Mar, 2026 | Adam S Grossman | President And Ceo | Acquired M | 15,000 | $5.40 | $81.00K | 2,133,777 | Direct |
| 13 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired M | 30,000 | $3.66 | $109.80K | 135,520 | Direct |
| 16 Mar, 2026 | Adam S Grossman | President And Ceo | Disposed S | 15,000 | $15.16 | $227.40K | 2,118,777 | Direct |
| 17 Mar, 2026 | Lawrence P. Guiheen | Director | Disposed G | 30,000 | $0.00 | $0 | 105,520 | Direct |
| 17 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired G | 30,000 | $0.00 | $0 | 30,000 | Indirect |
| 16 Mar, 2026 | Adam S Grossman | President And Ceo | Disposed S | 6,000 | $15.16 | $90.96K | 2,112,777 | Direct |
| 13 Mar, 2026 | Lawrence P. Guiheen | Director | Disposed M | 30,000 | $0.00 | $0 | 23,837 | Direct |
| 16 Mar, 2026 | Adam S Grossman | President And Ceo | Disposed M | 15,000 | $0.00 | $0 | 690,950 | Direct |
| 06 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | Disposed F | 10,059 | $15.39 | $154.81K | 562,101 | Direct |
| 06 Mar, 2026 | Adam S Grossman | President And Ceo | Disposed F | 56,438 | $15.39 | $868.58K | 2,148,290 | Direct |
| 07 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | Disposed F | 4,235 | $15.39 | $65.18K | 557,866 | Direct |
| 07 Mar, 2026 | Adam S Grossman | President And Ceo | Disposed F | 29,513 | $15.39 | $454.21K | 2,118,777 | Direct |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | Disposed J | 91,266 | $0.00 | $0 | 466,600 | Direct |