Who owns ADMA (ADMA)
Which tracked institutional funds hold ADMA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ADMA company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
58 tracked funds added or opened ADMA while 159 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
ADMA’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes ADMA more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ADMA divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 358 tracked filers holding ADMA, 204 increased or opened the position and 182 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in ADMA between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 31
- VANGUARD CAPITAL MANAGEMENT LLC$93M
- VANGUARD PORTFOLIO MANAGEMENT LLC$80M
- Qube Research & Technologies Ltd$16M
- Rubric Capital Management LP$16M
- VANGUARD FIDUCIARY TRUST CO$15M
- HRT FINANCIAL LP$11M
Full exits 29
- VANGUARD GROUP INC$374M
- Sachem Head Capital Management LP$207M
- WESTFIELD CAPITAL MANAGEMENT CO LP$128M
- AWM Investment Company, Inc.$40M
- PFM Health Sciences, LP$23M
- Aberdeen Group plc$18M
Largest adds
- CITADEL ADVISORS LLC$25M
- Point72 Asset Management, L.P.$22M
- JANE STREET GROUP, LLC$19M
- MILLENNIUM MANAGEMENT LLC$19M
- FEDERATED HERMES, INC.$12M
- TWO SIGMA INVESTMENTS, LP$10M
Largest trims
- BlackRock, Inc.$425M
- Invesco Ltd.$189M
- STATE STREET CORP$121M
- JANUS HENDERSON GROUP PLC$71M
- Thrivent Financial for Lutherans$68M
- UBS Group AG$64M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 26,377,879 | $238M | 8.3% | 2026-Q1 |
| STATE STREET CORP added | 14,084,205 | $127M | 4.4% | 2026-Q1 |
| Capital Research Global Investors added | 11,191,116 | $101M | 3.5% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 10,306,871 | $93M | 3.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 8,868,657 | $80M | 2.8% | 2026-Q1 |
| Nuveen, LLC added | 6,098,225 | $55M | 1.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 5,824,116 | $52M | 1.8% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 5,810,642 | $52M | 1.8% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 5,005,481 | $45M | 1.6% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 4,789,011 | $43M | 1.5% | 2026-Q1 |
| Caligan Partners LP added | 4,756,511 | $43M | 1.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 3,997,675 | $36M | 1.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 3,434,449 | $31M | 1.1% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 3,288,757 | $30M | 1.0% | 2026-Q1 |
| B Group, Inc. added | 3,207,542 | $29M | 1.0% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 3,051,943 | $27M | 1.0% | 2026-Q1 |
| Invesco Ltd. trimmed | 2,927,060 | $26M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 2,803,530 | $25M | 0.9% | 2026-Q1 |
| MORGAN STANLEY added | 2,434,379 | $22M | 0.8% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 2,344,899 | $21M | 0.7% | 2026-Q1 |
| Ranger Investment Management, L.P. trimmed | 2,283,810 | $21M | 0.7% | 2026-Q1 |
| NORTHERN TRUST CORP added | 2,277,312 | $21M | 0.7% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 2,216,285 | $20M | 0.7% | 2026-Q1 |
| UBS Group AG trimmed | 2,150,276 | $19M | 0.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 2,095,772 | $19M | 0.7% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 2,092,133 | $19M | 0.7% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 1,905,472 | $17M | 0.6% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 1,829,670 | $16M | 0.6% | 2026-Q1 |
| Rubric Capital Management LP new | 1,809,408 | $16M | 0.6% | 2026-Q1 |
| MetLife Investment Management, LLC added | 1,738,062 | $16M | 0.5% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 1,701,315 | $15M | 0.5% | 2026-Q1 |
| Fundsmith LLP trimmed | 1,649,493 | $15M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,637,559 | $15M | 0.5% | 2026-Q1 |
| Duquesne Family Office LLC added | 1,545,610 | $14M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 1,390,313 | $13M | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 1,355,443 | $12M | 0.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 1,262,634 | $11M | 0.4% | 2026-Q1 |
| HRT FINANCIAL LP added | 1,195,051 | $11M | 0.4% | 2026-Q1 |
| Trexquant Investment LP added | 1,144,841 | $10M | 0.4% | 2026-Q1 |
| Y-Intercept (Hong Kong) Ltd added | 1,075,422 | $10M | 0.3% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 1,021,604 | $9M | 0.3% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 991,883 | $9M | 0.3% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 930,962 | $8M | 0.3% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 929,326 | $8M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 851,413 | $8M | 0.3% | 2026-Q1 |
| NEXT CENTURY GROWTH INVESTORS LLC trimmed | 774,436 | $7M | 0.2% | 2026-Q1 |
| Stonepine Capital Management, LLC | 740,000 | $7M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 711,693 | $6M | 0.2% | 2026-Q1 |
| JUPITER ASSET MANAGEMENT LTD new | 711,515 | $6M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 708,089 | $6M | 0.2% | 2026-Q1 |
| Caption Management, LLC added | 660,000 | $6M | 0.2% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 650,989 | $6M | 0.2% | 2026-Q1 |
| RENAISSANCE GROUP LLC added | 642,535 | $6M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 627,945 | $6M | 0.2% | 2026-Q1 |
| MARATHON CAPITAL MANAGEMENT added | 627,388 | $6M | 0.2% | 2026-Q1 |
| PEREGRINE CAPITAL MANAGEMENT LLC added | 611,826 | $6M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 297,883 | $5M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 602,707 | $5M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 560,827 | $5M | 0.2% | 2026-Q1 |
| Clearline Capital LP trimmed | 556,054 | $5M | 0.2% | 2026-Q1 |
| XTX Topco Ltd added | 552,793 | $5M | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 512,926 | $5M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 511,262 | $5M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 20,496,224 | $374M | 13.0% | 2025-Q4 stale |
| Sachem Head Capital Management LP added | 11,375,000 | $207M | 7.2% | 2025-Q4 stale |
| WESTFIELD CAPITAL MANAGEMENT CO LP added | 6,992,907 | $128M | 4.4% | 2025-Q4 stale |
| Driehaus Capital Management LLC trimmed | 2,477,013 | $45M | 1.6% | 2025-Q2 stale |
| AWM Investment Company, Inc. | 2,200,000 | $40M | 1.4% | 2025-Q4 stale |
| OBERWEIS ASSET MANAGEMENT INC/ trimmed | 2,712,040 | $40M | 1.4% | 2025-Q3 stale |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. new | 1,800,440 | $33M | 1.1% | 2025-Q2 stale |
| LORD, ABBETT & CO. LLC trimmed | 1,781,524 | $32M | 1.1% | 2025-Q2 stale |
| Perpetual Ltd trimmed | 2,119,291 | $31M | 1.1% | 2025-Q3 stale |
| T. Rowe Price Investment Management, Inc. new | 1,669,191 | $30M | 1.1% | 2025-Q2 stale |
| PFM Health Sciences, LP added | 1,270,894 | $23M | 0.8% | 2025-Q4 stale |
| MACQUARIE GROUP LTD trimmed | 1,395,099 | $20M | 0.7% | 2025-Q3 stale |
| Ophir Asset Management Pty Ltd added | 1,255,235 | $18M | 0.6% | 2025-Q3 stale |
| Aberdeen Group plc trimmed | 963,949 | $18M | 0.6% | 2025-Q4 stale |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC new | 890,861 | $16M | 0.6% | 2025-Q4 stale |
| First Light Asset Management, LLC added | 1,069,233 | $16M | 0.5% | 2025-Q3 stale |
| TANG CAPITAL MANAGEMENT LLC | 1,050,000 | $15M | 0.5% | 2025-Q3 stale |
| BALYASNY ASSET MANAGEMENT L.P. added | 1,018,239 | $15M | 0.5% | 2025-Q3 stale |
| First Turn Management, LLC trimmed | 808,673 | $12M | 0.4% | 2025-Q3 stale |
| Holocene Advisors, LP new | 629,314 | $11M | 0.4% | 2025-Q4 stale |
| Soleus Capital Management, L.P. added | 738,000 | $11M | 0.4% | 2025-Q3 stale |
| Catalio Capital Management, LP trimmed | 564,461 | $10M | 0.4% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 483,797 | $10M | 0.3% | 2025-Q1 stale |
| CASTLEARK MANAGEMENT LLC added | 456,266 | $9M | 0.3% | 2025-Q1 stale |
| Palisades Investment Partners, LLC trimmed | 398,647 | $7M | 0.3% | 2025-Q2 stale |
| Chevy Chase Trust Holdings, LLC trimmed | 383,635 | $7M | 0.2% | 2025-Q4 stale |
| Simplify Asset Management Inc. added | 381,139 | $7M | 0.2% | 2025-Q2 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 360,565 | $7M | 0.2% | 2025-Q2 stale |
| KORNITZER CAPITAL MANAGEMENT INC /KS trimmed | 356,867 | $7M | 0.2% | 2025-Q4 stale |
| Hillsdale Investment Management Inc. trimmed | 322,200 | $6M | 0.2% | 2025-Q1 stale |
| Alberta Investment Management Corp added | 294,250 | $6M | 0.2% | 2025-Q1 stale |
| Empowered Funds, LLC trimmed | 293,227 | $6M | 0.2% | 2025-Q1 stale |
| FINDELL CAPITAL MANAGEMENT LLC new | 300,000 | $5M | 0.2% | 2025-Q4 stale |
| Calamos Advisors LLC added | 292,426 | $5M | 0.2% | 2025-Q4 stale |
| Robeco Institutional Asset Management B.V. added | 258,609 | $5M | 0.2% | 2025-Q1 stale |
| OP Asset Management Ltd added | 271,192 | $5M | 0.2% | 2025-Q4 stale |
| OSTERWEIS CAPITAL MANAGEMENT INC added | 309,031 | $5M | 0.2% | 2025-Q3 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.