ADMA Biologics, Inc. (ADMA) has 20 known insider and institutional holders on record. The largest holder is PERCEPTIVE ADVISORS LLC with 13,482,375 shares. Other notable holders include Biotest AG and Biotest Divestiture Trust.
Over the last 12 months, insiders have made 45 transactions in ADMA stock — 11 buys (valued at $11.6M) and 3 sells (valued at $6.38M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
ADMA Insider Ownership
Top Holder
PERCEPTIVE ADVISORS LLC
13,482,375 shares
Buys (12 mo)
11
$11.6M value
Sells (12 mo)
3
$6.38M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Perceptive Advisors Llc |
10 Percent Owner |
13,482,375 |
2021-09-30 |
|
| 2 |
Biotest Ag |
10 Percent Owner |
10,109,534 |
2017-11-16 |
|
| 3 |
Biotest Divestiture Trust |
10 Percent Owner |
4,295,580 |
2019-06-07 |
|
| 4 |
Aisling Capital Ii Lp |
10 Percent Owner |
3,620,143 |
2013-10-23 |
|
| 5 |
Elms Steve |
Director |
2,038,730 |
2026-03-09 |
|
| 6 |
Burrill Capital Fund Iv, L.p. |
10 Percent Owner |
1,433,304 |
2013-10-23 |
|
| 7 |
Lenz Brian |
EVP, CFO |
719,967 |
2024-03-08 |
|
| 8 |
Grossman Adam S |
President and CEO |
690,950 |
2026-03-17 |
|
| 9 |
Kestenberg-messina Kaitlin M. |
COO and SVP, Compliance |
446,238 |
2026-04-03 |
|
| 10 |
Tade Brad L. |
CFO and Treasurer |
232,940 |
2026-02-23 |
|
| 11 |
Mond James |
EVP, CSO and CMO |
137,535 |
2021-03-01 |
|
| 12 |
Demski Martha J |
Director |
51,630 |
2023-03-08 |
|
| 13 |
R & R Investments Vi Llc |
10 Percent Owner |
39,340 |
2012-02-13 |
|
| 14 |
Fong Bryant |
Director |
37,541 |
2024-02-28 |
|
| 15 |
Guiheen Lawrence P. |
Director |
23,837 |
2026-03-17 |
|
| 16 |
Finger Alison Cecily |
Director |
17,730 |
2026-02-11 |
|
| 17 |
Kwon Young |
Director |
17,730 |
2026-02-11 |
|
| 18 |
Grossman Jerrold B |
Director |
17,730 |
2026-02-11 |
|
| 19 |
Salas Eduardo Rene |
Director |
17,730 |
2026-02-11 |
|
| 20 |
Richman Eric I |
Director |
15,000 |
2020-03-03 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-01 |
Kestenberg-messina Kaitlin M. |
COO and SVP, Compliance |
Tax Withholding of RSU |
20,362 |
$9.11 |
$185.5K |
| 2026-03-17 |
Guiheen Lawrence P. |
Director |
Gift (Received) |
30,000 |
- |
- |
| 2026-03-13 |
Guiheen Lawrence P. |
Director |
Option Exercise (Sell) |
30,000 |
$3.66 |
$109.8K |
| 2026-03-16 |
Grossman Adam S |
President and CEO |
Option Exercise (Sell) |
15,000 |
$5.40 |
$81K |
| 2026-03-09 |
Kestenberg-messina Kaitlin M. |
COO and SVP, Compliance |
Option Exercise (Sell) |
1,250 |
$4.31 |
$5.39K |
| 2026-03-07 |
Kestenberg-messina Kaitlin M. |
COO and SVP, Compliance |
Tax Withholding of RSU |
4,235 |
$15.39 |
$65.18K |
| 2026-03-06 |
Kestenberg-messina Kaitlin M. |
COO and SVP, Compliance |
Tax Withholding of RSU |
10,059 |
$15.39 |
$154.81K |
| 2026-03-07 |
Grossman Adam S |
President and CEO |
Tax Withholding of RSU |
29,513 |
$15.39 |
$454.21K |
| 2026-03-06 |
Grossman Adam S |
President and CEO |
Tax Withholding of RSU |
56,438 |
$15.39 |
$868.58K |
| 2026-03-06 |
Elms Steve |
Director |
Informative Buy |
7,000 |
$15.39 |
$107.73K |
| 2026-03-05 |
Elms Steve |
Director |
Informative Buy |
7,000 |
$15.67 |
$109.69K |
| 2026-02-26 |
Grossman Adam S |
President and CEO |
Tax Withholding of RSU |
54,858 |
$15.18 |
$832.74K |
| 2026-02-26 |
Kohler Terry |
CFO and Treasurer |
Unknown |
91,166 |
$19.39 |
$1.77M |
| 2026-02-19 |
Tade Brad L. |
CFO and Treasurer |
Tax Withholding of RSU |
6,479 |
$16.32 |
$105.74K |
| 2026-02-19 |
Kestenberg-messina Kaitlin M. |
COO and SVP, Compliance |
Tax Withholding of RSU |
8,161 |
$16.32 |
$133.19K |
| 2026-02-19 |
Grossman Adam S |
President and CEO |
Tax Withholding of RSU |
24,793 |
$16.32 |
$404.62K |
| 2026-02-17 |
Grossman Adam S |
President and CEO |
Option Exercise (Sell) |
15,000 |
$5.40 |
$81K |
| 2026-02-09 |
Kestenberg-messina Kaitlin M. |
COO and SVP, Compliance |
RSU Award |
144,230 |
$16.37 |
$2.36M |
| 2026-02-09 |
Salas Eduardo Rene |
Director |
RSU Award |
17,730 |
$16.37 |
$290.24K |
| 2026-02-09 |
Kwon Young |
Director |
RSU Award |
17,730 |
$16.37 |
$290.24K |
| 2026-02-09 |
Finger Alison Cecily |
Director |
RSU Award |
17,730 |
$16.37 |
$290.24K |
| 2026-02-09 |
Guiheen Lawrence P. |
Director |
RSU Award |
17,730 |
$16.37 |
$290.24K |
| 2026-02-09 |
Grossman Jerrold B |
Director |
RSU Award |
17,730 |
$16.37 |
$290.24K |
| 2026-02-09 |
Grossman Adam S |
President and CEO |
RSU Award |
444,711 |
$16.37 |
$7.28M |
| 2026-02-09 |
Elms Steve |
Director |
RSU Award |
17,730 |
$16.37 |
$290.24K |
