As of March 23, 2026, Adma Biologics's top three insider holders are Advisors Llc Perceptive (TenPercentOwner, 13.26Mn shares), Adam S Grossman (President And Ceo, 2.12Mn shares), Steve Elms (Director, 2.05Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Advisors Llc Perceptive | 0 | 13,262,375 | 30 Sep, 2021 | |
| Adam S Grossman | President And Ceo | 2,112,777 | 0 | 17 Mar, 2026 |
| Steve Elms | 0 | 2,045,730 | 09 Mar, 2026 | |
| Adam S Grossman | President And Ceo | 0 | 1,143,426 | 09 Dec, 2022 |
| Brian Lenz | Evp, Cfo | 703,002 | 0 | 08 Mar, 2024 |
| Jerrold B Grossman | 488,884 | 0 | 11 Feb, 2026 | |
| Kaitlin M. Kestenberg-Messina | Coo And Svp, Compliance | 466,600 | 0 | 10 Mar, 2026 |
| Young Kwon | 263,020 | 0 | 11 Feb, 2026 | |
| Brad L. Tade | Cfo And Treasurer | 232,940 | 0 | 23 Feb, 2026 |
| Lawrence P. Guiheen | 105,520 | 30,000 | 17 Mar, 2026 | |
| Steve Elms | 98,020 | 0 | 11 Feb, 2026 | |
| Bryant Fong | 83,941 | 0 | 28 Feb, 2024 | |
| Martha J Demski | 0 | 56,601 | 08 Mar, 2023 | |
| Alison Cecily Finger | 45,619 | 0 | 11 Feb, 2026 | |
| Eduardo Rene Salas | 21,579 | 0 | 11 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 13 Mar, 2026 | Lawrence P. Guiheen | Common Stock | A | 30,000 | $3.66 | 135,520 | D | M |
| 16 Mar, 2026 | Adam S Grossman | Common Stock | A | 15,000 | $5.40 | 2,133,777 | D | M |
| 17 Mar, 2026 | Lawrence P. Guiheen | Common Stock | D | 30,000 | $0.00 | 105,520 | D | G |
| 16 Mar, 2026 | Adam S Grossman | Common Stock | D | 15,000 | $15.16 | 2,118,777 | D | S |
| 16 Mar, 2026 | Adam S Grossman | Common Stock | D | 6,000 | $15.16 | 2,112,777 | D | S |
| 17 Mar, 2026 | Lawrence P. Guiheen | Common Stock | A | 30,000 | $0.00 | 30,000 | I | G |
| 13 Mar, 2026 | Lawrence P. Guiheen | Stock Option (Right to Buy) | D | 30,000 | $0.00 | 23,837 | D | M |
| 16 Mar, 2026 | Adam S Grossman | Stock Option (right to buy) | D | 15,000 | $0.00 | 690,950 | D | M |
| 06 Mar, 2026 | Adam S Grossman | Common Stock | D | 56,438 | $15.39 | 2,148,290 | D | F |
| 06 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | D | 10,059 | $15.39 | 562,101 | D | F |
| 07 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | D | 4,235 | $15.39 | 557,866 | D | F |
| 07 Mar, 2026 | Adam S Grossman | Common Stock | D | 29,513 | $15.39 | 2,118,777 | D | F |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | D | 91,266 | $0.00 | 466,600 | D | J |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | A | 2,500 | $5.00 | 469,100 | D | M |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | A | 1,250 | $4.31 | 470,350 | D | M |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | A | 2,646 | $2.83 | 472,996 | D | M |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | A | 1,525 | $2.35 | 474,521 | D | M |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | A | 2,175 | $1.55 | 476,696 | D | M |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Common Stock | D | 10,096 | $15.63 | 466,600 | D | S |
| 09 Mar, 2026 | Kaitlin M. Kestenberg-Messina | Stock Option (right to buy) | D | 2,500 | $0.00 | 2,500 | D | M |