Adma Biologics's three largest insider shareholders as of August 29, 2026 are Steve Elms (Director, 2.05Mn shares), Brian Lenz (Evp, Cfo, 703.00K shares), Jerrold B Grossman (Director, 520.28K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Steve Elms | Director | 0 | 2,045,730 | 2,045,730 | 43.6% | 09 Mar, 2026 |
| 2 | Brian Lenz | Evp, Cfo | 703,002 | 0 | 703,002 | 15.0% | 08 Mar, 2024 |
| 3 | Jerrold B Grossman | Director | 520,284 | 0 | 520,284 | 11.1% | 28 May, 2026 |
| 4 | Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | 443,061 | 0 | 443,061 | 9.4% | 28 Jul, 2026 |
| 5 | Young Kwon | Director | 263,020 | 0 | 263,020 | 5.6% | 11 Feb, 2026 |
| 6 | Brad L. Tade | Cfo And Treasurer | 232,940 | 0 | 232,940 | 5.0% | 23 Feb, 2026 |
| 7 | Terry Kohler | Cfo And Treasurer | 143,149 | 0 | 143,149 | 3.0% | 17 Jul, 2026 |
| 8 | Lawrence P. Guiheen | Director | 105,520 | 30,000 | 135,520 | 2.9% | 17 Mar, 2026 |
| 9 | Bryant Fong | Director | 83,941 | 0 | 83,941 | 1.8% | 28 Feb, 2024 |
| 10 | Martha J Demski | Director | 0 | 56,601 | 56,601 | 1.2% | 08 Mar, 2023 |
| 11 | Alison Cecily Finger | Director | 45,619 | 0 | 45,619 | 1.0% | 11 Feb, 2026 |
| 12 | Eduardo Rene Salas | Director | 21,579 | 0 | 21,579 | 0.5% | 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 |
| 13 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired M | 30,000 | $3.66 | $109.80K | 135,520 | Direct |
| 13 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired M | 30,000 | $3.66 | $109.80K | 135,520 | Direct |
| 13 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired M | 30,000 | $3.66 | $109.80K | 135,520 | Direct |
| 13 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired M | 30,000 | $3.66 | $109.80K | 135,520 | 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 | Disposed G | 30,000 | $0.00 | $0 | 105,520 | 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 | 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 |
| 17 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired G | 30,000 | $0.00 | $0 | 30,000 | Indirect |
| 17 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired G | 30,000 | $0.00 | $0 | 30,000 | Indirect |
| 17 Mar, 2026 | Lawrence P. Guiheen | Director | Acquired G | 30,000 | $0.00 | $0 | 30,000 | Indirect |
| 13 Mar, 2026 | Lawrence P. Guiheen | Director | Disposed M | 30,000 | $0.00 | $0 | 23,837 | Direct |