ADMA BIOLOGICS INC ADMA
COM · Common Stock · CUSIP 000899104
Company in Ramsey, United States
- SectorHealth care
- IndustryBiological Products, (No Diagnostic Substances)
- HeadquartersRamsey, NJ
- Websiteadmabiologics.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.2m this quarter). Holder counts are more reliable. Shares outstanding: 231.8m as of 2026-05-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.03. Options: 13 managers hold calls ($67.1m notional), 10 hold puts ($29.3m).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 130 |
| Q4 2022 | 160 |
| Q1 2023 | 164 |
| Q2 2023 | 182 |
| Q3 2023 | 190 |
| Q4 2023 | 186 |
| Q1 2024 | 216 |
| Q2 2024 | 255 |
| Q3 2024 | 309 |
| Q4 2024 | 323 |
| Q1 2025 | 349 |
| Q2 2025 | 370 |
| Q3 2025 | 366 |
| Q4 2025 | 357 |
| Q1 2026 | 358 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 142 | 103 |
| Q3 2024 | 193 | 134 |
| Q4 2024 | 182 | 162 |
| Q1 2025 | 188 | 148 |
| Q2 2025 | 228 | 162 |
| Q3 2025 | 161 | 224 |
| Q4 2025 | 189 | 180 |
| Q1 2026 | 196 | 170 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $53.0m | $31.2m | 0.59 |
| Q3 2025 | $69.2m | $32.9m | 0.48 |
| Q4 2025 | $68.1m | $37.0m | 0.54 |
| Q1 2026 | $67.1m | $29.3m | 0.44 |
Biggest buyers
| Capital Research Global Investors | Added | +4.6m |
| CITADEL ADVISORS LLC | Added | +4.3m |
| Point72 Asset Management, L.P. | Added | +2.9m |
| MILLENNIUM MANAGEMENT LLC | Added | +2.8m |
| JANE STREET GROUP, LLC | Added | +2.6m |
| BANK OF AMERICA CORP /DE/ | Added | +2.1m |
| Qube Research & Technologies Ltd | New | +1.8m |
| Rubric Capital Management LP | New | +1.8m |
| Caligan Partners LP | Added | +1.7m |
| GOLDMAN SACHS GROUP INC | Added | +1.7m |
Biggest sellers
| Sachem Head Capital Management LP | Sold out | -11.4m |
| Invesco Ltd. | Reduced | -7.7m |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Sold out | -7.0m |
| JANUS HENDERSON GROUP PLC | Reduced | -3.8m |
| Thrivent Financial for Lutherans | Reduced | -3.6m |
| UBS Group AG | Reduced | -2.4m |
| AWM Investment Company, Inc. | Sold out | -2.2m |
| VOYA INVESTMENT MANAGEMENT LLC | Reduced | -1.9m |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Reduced | -1.4m |
| PFM Health Sciences, LP | Sold out | -1.3m |
Biggest calls
| Caption Management, LLC | Added | $13.7m1.5m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $11.2m1.2m shares |
| TUDOR INVESTMENT CORP ET AL | Added | $10.4m1.2m shares |
| Stonepine Capital Management, LLC | New | $10.4m1.1m shares |
| JANE STREET GROUP, LLC | Added | $5.4m595.4k shares |
| GROUP ONE TRADING LLC | Added | $4.9m549.3k shares |
| CITADEL ADVISORS LLC | Added | $2.9m316.5k shares |
| Caligan Partners LP | New | $2.7m300.0k shares |
| SIMPLEX TRADING, LLC | Added | $2.4m268.6k shares |
| IMC-Chicago, LLC | Added | $1.7m187.3k shares |
Biggest puts
| Caption Management, LLC | Added | $10.3m1.1m shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $8.0m890.5k shares |
| JPMORGAN CHASE & CO | New | $6.9m750.0k shares |
| CITADEL ADVISORS LLC | Added | $1.1m120.1k shares |
| SIMPLEX TRADING, LLC | Added | $856.0k95.0k shares |
| IMC-Chicago, LLC | Added | $847.8k94.1k shares |
| GROUP ONE TRADING LLC | Added | $504.6k56.0k shares |
| 683 Capital Management, LLC | Unchanged | $450.5k50.0k shares |
| JANE STREET GROUP, LLC | Reduced | $182.9k20.3k shares |
| TUDOR INVESTMENT CORP ET AL | New | $107.2k11.9k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-30 | 15.1% |
| STATE STREET CORP 13G · institution +2.3 pts · filed 2026-08-07 | 7.4% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD CAPITAL MANAGEMENT LLC), Invesco Ltd. (5.0%, 2026-02-12)
Insider purchases and sales in Q1 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 1 | $1.1m | — |
| Q3 2024 | 0 | — | 5 | $15.0m | — |
| Q4 2024 | 0 | — | 2 | $1.4m | — |
| Q1 2025 | 0 | — | 1 | $397.3k | $397.3k |
| Q2 2025 | 0 | — | 4 | $10.9m | $1.3m |
| Q3 2025 | 0 | — | 1 | $1.1m | $1.1m |
| Q4 2025 | 0 | — | 1 | $1.1m | $1.1m |
| Q1 2026 | 1 | $217.4k | 2 | $813.8k | $656.0k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-03-16 | Grossman Adam S President and CEO, director | Sold plan | $318.4k21.0k shares |
| 2026-03-09 | Kestenberg-Messina Kaitlin M. COO and SVP, Compliance | Sold | $157.8k10.1k shares |
| 2026-03-06 | ELMS STEVE Director · See footnote | Bought | $107.7k7.0k shares |
| 2026-03-05 | ELMS STEVE Director · See footnote | Bought | $109.7k7.0k shares |
| 2026-02-17 | Grossman Adam S President and CEO, director | Sold plan | $337.7k21.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 36.8m $331.8m | Added +497.4k |
| STATE STREET CORP 0.00% of their portfolio | 14.1m $126.9m | Added +486.9k |
| Capital Research Global Investors 0.02% of their portfolio | 11.2m $100.8m | Added +4.6m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 10.3m $92.9m | First filing |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 8.9m $79.9m | First filing |
| Nuveen, LLC 0.01% of their portfolio | 6.1m $54.9m | Added +171.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 5.8m $52.5m | Reduced -6.8k |
| CITADEL ADVISORS LLC 0.04% of their portfolio | 5.8m $52.4m | Added +4.3m |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 5.0m $45.1m | Added +169.8k |
| AMERICAN CENTURY COMPANIES INC 0.02% of their portfolio | 4.8m $43.1m | Reduced -409.4k |
| Caligan Partners LP 3.03% of their portfolio | 4.8m $42.9m | Added +1.7m |
| Invesco Ltd. 0.00% of their portfolio | 4.1m $37.1m | Reduced -7.7m |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 4.0m $36.0m | Added +2.1m |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 3.4m $30.9m | Added +2.8m |
| Point72 Asset Management, L.P. 0.05% of their portfolio | 3.3m $29.6m | Added +2.9m |
| B Group, Inc. 21.43% of their portfolio | 3.2m $28.9m | Added +750.0k |
| JANE STREET GROUP, LLC 0.03% of their portfolio | 3.1m $27.5m | Added +2.6m |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 2.8m $25.3m | Added +1.7m |
| MORGAN STANLEY 0.00% of their portfolio | 2.4m $21.9m | Added +486.0k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 2.3m $21.1m | Reduced -449.0k |
| Ranger Investment Management, L.P. 1.49% of their portfolio | 2.3m $20.6m | Reduced -17.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 2.3m $20.5m | Added +10.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 2.2m $20.0m | Added +55.7k |
| UBS Group AG 0.00% of their portfolio | 2.2m $19.4m | Reduced -2.4m |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 2.1m $18.9m | Reduced -161.9k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 2.1m $18.9m | Added +1.6m |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 1.9m $17.2m | Added +764.4k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 1.8m $16.5m | New |
| Rubric Capital Management LP 0.20% of their portfolio | 1.8m $16.3m | New |
| MetLife Investment Management, LLC 0.08% of their portfolio | 1.7m $15.7m | Added +356.5k |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 1.7m $15.3m | Added +1.5m |
| Fundsmith LLP 0.12% of their portfolio | 1.6m $14.9m | Reduced -452.6k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 1.6m $14.8m | First filing |
| Duquesne Family Office LLC 0.47% of their portfolio | 1.5m $13.9m | Added +1.3m |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 1.4m $12.5m | Reduced -13.0k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 1.4m $12.2m | Reduced -47.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 1.3m $11.4m | Reduced -270.0k |
| HRT FINANCIAL LP 0.04% of their portfolio | 1.2m $10.8m | New |
| Trexquant Investment LP 0.07% of their portfolio | 1.1m $10.3m | Added +774.0k |
| Y-Intercept (Hong Kong) Ltd 0.18% of their portfolio | 1.1m $9.7m | Added +1.0m |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 1.0m $9.2m | Added +987.3k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.21% of their portfolio | 991.9k $8.9m | Added +203.5k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 931.0k $8.4m | Reduced -892.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 929.3k $8.4m | Added +760.0k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 851.4k $7.7m | Added +27.7k |
| NEXT CENTURY GROWTH INVESTORS LLC 0.51% of their portfolio | 774.4k $7.0m | Reduced -326.3k |
| Stonepine Capital Management, LLC 5.86% of their portfolio | 740.0k $6.7m | Unchanged |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 711.7k $6.4m | Reduced -344.6k |
| JUPITER ASSET MANAGEMENT LTD 0.03% of their portfolio | 711.5k $6.4m | New |
| TUDOR INVESTMENT CORP ET AL 0.03% of their portfolio | 708.1k $6.4m | Added +628.6k |
| Caption Management, LLC 0.28% of their portfolio | 660.0k $5.9m | New |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 651.0k $5.9m | Reduced -362.8k |
| RENAISSANCE GROUP LLC 0.24% of their portfolio | 642.5k $5.8m | Added +166.9k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 627.9k $5.7m | Added +14.6k |
| MARATHON CAPITAL MANAGEMENT 1.27% of their portfolio | 627.4k $5.7m | Added +162.1k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.20% of their portfolio | 611.8k $5.5m | Added +140.4k |
| Legal & General Group Plc 0.00% of their portfolio | 602.7k $5.4m | Reduced -60.7k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 560.8k $5.1m | Added +3.7k |
| Clearline Capital LP 0.39% of their portfolio | 556.1k $5.0m | New |
| XTX Topco Ltd 0.09% of their portfolio | 552.8k $5.0m | New |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 514.8k $4.6m | Added +208.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 512.9k $4.7m | Added +213.8k |
| Allspring Global Investments Holdings, LLC 0.01% of their portfolio | 479.6k $4.4m | Reduced -10.6k |
| Bridgewater Associates, LP 0.02% of their portfolio | 472.1k $4.3m | Added +285.6k |
| Swiss National Bank 0.00% of their portfolio | 470.6k $4.2m | Unchanged |
| PERCEPTIVE ADVISORS LLC 0.08% of their portfolio | 467.2k $4.2m | Reduced -416.2k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 465.6k $4.2m | Reduced -86.4k |
| Jump Financial, LLC 0.06% of their portfolio | 445.1k $4.0m | Added +278.9k |
| ARDSLEY ADVISORY PARTNERS LP 0.58% of their portfolio | 425.0k $3.8m | New |
| KENNEDY CAPITAL MANAGEMENT LLC 0.08% of their portfolio | 411.3k $3.7m | Reduced -266.3k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 393.7k $3.5m | Reduced -6.4k |
| ASHFORD CAPITAL MANAGEMENT INC 0.40% of their portfolio | 361.5k $3.3m | New |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 360.2k $3.2m | Added +335.6k |
| ALGERT GLOBAL LLC 0.05% of their portfolio | 355.9k $3.2m | Added +119.0k |
| FMR LLC 0.00% of their portfolio | 338.9k $3.1m | Added +36.7k |
| Schonfeld Strategic Advisors LLC 0.02% of their portfolio | 330.1k $3.0m | Added +292.0k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 307.1k $2.8m | Reduced -18.3k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.15% of their portfolio | 300.7k $2.7m | Added +8.8k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 297.9k $5.4m | Added +3.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.01% of their portfolio | 296.5k $2.7m | Reduced -726.8k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 290.4k $2.6m | Added +854 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 279.1k $2.5m | Added +54.0k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 272.8k $2.5m | Added +254.5k |
| Rafferty Asset Management, LLC 0.01% of their portfolio | 261.7k $2.4m | Reduced -29.5k |
| DekaBank Deutsche Girozentrale 0.00% of their portfolio | 236.2k $2.2m | Unchanged |
| PFG Investments, LLC 0.09% of their portfolio | 222.7k $2.0m | Added +8.7k |
| TWINBEECH CAPITAL LP 0.21% of their portfolio | 221.8k $2.0m | Added +180.5k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 212.5k $1.9m | First filing |
| Quadrature Capital Ltd 0.02% of their portfolio | 204.5k $1.8m | New |
| Neo Ivy Capital Management 0.47% of their portfolio | 199.7k $1.8m | Added +130.5k |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 0.00% of their portfolio | 198.9k $1.8m | Reduced -1.4m |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 195.8k $1.8m | Reduced -10.4k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 189.1k $1.7m | Reduced -7.9k |
| Future Fund LLC 0.58% of their portfolio | 184.0k $1.7m | Added +86.6k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 179.5k $1.6m | Reduced -231.7k |
| BESSEMER GROUP INC 0.00% of their portfolio | 177.5k $1.6m | Reduced -1.1k |
| Cetera Investment Advisers 0.00% of their portfolio | 176.3k $1.6m | Reduced -7.1k |
| State of Alaska, Department of Revenue 0.02% of their portfolio | 176.0k $1.6m | Added +2.2k |
| LPL Financial LLC 0.00% of their portfolio | 175.2k $1.6m | Reduced -121.0k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 165.4k $1.5m | Added +4.3k |