Who owns ALMS (ALMS)
Which tracked institutional funds hold ALMS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ALMS 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
The tracked-fund tape on ALMS is one-sided between 2025-Q4 and 2026-Q1: 112 added or opened and 9 trimmed or exited — on balance accumulating.
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
ALMS’s largest tracked holder by dollar value, BlackRock, 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 ALMS more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ALMS 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 196 tracked filers holding ALMS, 150 increased or opened the position and 61 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 ALMS 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 46
- Deep Track Capital, LP$149M
- VANGUARD CAPITAL MANAGEMENT LLC$89M
- JANUS HENDERSON GROUP PLC$46M
- Ikarian Capital, LLC$27M
- Weiss Asset Management LP$24M
- PRINCIPAL FINANCIAL GROUP INC$23M
Full exits 7
- AyurMaya Capital Management Company, LP$148M
- VANGUARD GROUP INC$36M
- Siren, L.L.C.$5M
- JANE STREET GROUP, LLC$2M
- Verition Fund Management LLC$781K
- LOS ANGELES CAPITAL MANAGEMENT LLC$760K
Largest adds
- BlackRock, Inc.$113M
- SAMSARA BIOCAPITAL, LLC$84M
- Foresite Capital Management V, LLC$74M
- PRICE T ROWE ASSOCIATES INC /MD/$72M
- UBS Group AG$66M
- venBio Partners LLC$55M
Largest trims
- Trium Capital LLP$5M
- Omega Fund Management, LLC$1M
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. added | 7,170,868 | $158M | 6.7% | 2026-Q1 |
| Deep Track Capital, LP new | 6,772,595 | $149M | 6.3% | 2026-Q1 |
| SAMSARA BIOCAPITAL, LLC added | 6,345,219 | $140M | 5.9% | 2026-Q1 |
| Foresite Capital Management V, LLC added | 5,896,995 | $130M | 5.5% | 2026-Q1 |
| venBio Partners LLC trimmed | 4,528,408 | $100M | 4.2% | 2026-Q1 |
| Foresite Capital Management VI LLC | 4,247,670 | $94M | 3.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 4,032,266 | $89M | 3.7% | 2026-Q1 |
| Cormorant Asset Management, LP added | 3,949,241 | $87M | 3.7% | 2026-Q1 |
| Nextech Invest, Ltd. added | 3,540,998 | $78M | 3.3% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 3,286,753 | $72M | 3.0% | 2026-Q1 |
| Saturn V Capital Management LP added | 3,202,075 | $71M | 3.0% | 2026-Q1 |
| UBS Group AG added | 3,054,865 | $67M | 2.8% | 2026-Q1 |
| Octagon Capital Advisors LP added | 2,830,700 | $62M | 2.6% | 2026-Q1 |
| MPM BIOIMPACT LLC trimmed | 2,386,529 | $53M | 2.2% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC new | 2,095,408 | $46M | 1.9% | 2026-Q1 |
| BAKER BROS. ADVISORS LP added | 2,012,500 | $44M | 1.9% | 2026-Q1 |
| SR One Capital Management, LP | 1,959,896 | $43M | 1.8% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,918,415 | $42M | 1.8% | 2026-Q1 |
| STATE STREET CORP added | 1,801,812 | $40M | 1.7% | 2026-Q1 |
| Invesco Ltd. added | 1,461,624 | $32M | 1.4% | 2026-Q1 |
| Ikarian Capital, LLC new | 1,213,548 | $27M | 1.1% | 2026-Q1 |
| MARSHALL WACE, LLP added | 1,172,749 | $26M | 1.1% | 2026-Q1 |
| Weiss Asset Management LP added | 1,097,417 | $24M | 1.0% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC new | 1,058,051 | $23M | 1.0% | 2026-Q1 |
| FMR LLC added | 973,712 | $21M | 0.9% | 2026-Q1 |
| GREAT POINT PARTNERS LLC new | 856,061 | $19M | 0.8% | 2026-Q1 |
| Integral Health Asset Management, LLC new | 800,000 | $18M | 0.7% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 861,575 | $17M | 0.7% | 2026-Q1 |
| Yu Fan trimmed | 776,845 | $17M | 0.7% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC new | 749,099 | $17M | 0.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 718,040 | $16M | 0.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 712,608 | $16M | 0.7% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 658,115 | $14M | 0.6% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 635,389 | $14M | 0.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 606,284 | $13M | 0.6% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 572,129 | $13M | 0.5% | 2026-Q1 |
| NORTHERN TRUST CORP added | 563,522 | $12M | 0.5% | 2026-Q1 |
| Opaleye Management Inc. added | 550,000 | $12M | 0.5% | 2026-Q1 |
| ORBIMED ADVISORS LLC trimmed | 548,163 | $12M | 0.5% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC new | 538,733 | $12M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 527,305 | $12M | 0.5% | 2026-Q1 |
| ROYCE & ASSOCIATES LP new | 476,392 | $10M | 0.4% | 2026-Q1 |
| Spruce Street Capital LP new | 392,574 | $9M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. new | 362,985 | $8M | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 351,507 | $8M | 0.3% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC new | 346,131 | $8M | 0.3% | 2026-Q1 |
| Artia Global Partners LP new | 325,046 | $7M | 0.3% | 2026-Q1 |
| Nuveen, LLC added | 319,188 | $7M | 0.3% | 2026-Q1 |
| Exome Asset Management LLC trimmed | 279,176 | $6M | 0.3% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 266,243 | $6M | 0.2% | 2026-Q1 |
| Omega Fund Management, LLC trimmed | 241,255 | $5M | 0.2% | 2026-Q1 |
| STEMPOINT CAPITAL LP new | 229,566 | $5M | 0.2% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 229,094 | $5M | 0.2% | 2026-Q1 |
| MORGAN STANLEY trimmed | 225,072 | $5M | 0.2% | 2026-Q1 |
| BARCLAYS PLC added | 222,658 | $5M | 0.2% | 2026-Q1 |
| TOWERVIEW LLC trimmed | 222,294 | $5M | 0.2% | 2026-Q1 |
| STIFEL FINANCIAL CORP | 209,729 | $5M | 0.2% | 2026-Q1 |
| Bank of New York Mellon Corp added | 206,729 | $5M | 0.2% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 194,355 | $4M | 0.2% | 2026-Q1 |
| Hudson Bay Capital Management LP added | 193,395 | $4M | 0.2% | 2026-Q1 |
| Trium Capital LLP trimmed | 191,391 | $4M | 0.2% | 2026-Q1 |
| TD Asset Management Inc new | 191,202 | $4M | 0.2% | 2026-Q1 |
| ACT CAPITAL MANAGEMENT, LLC new | 174,250 | $4M | 0.2% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC | 172,779 | $4M | 0.2% | 2026-Q1 |
| Ensign Peak Advisors, Inc new | 169,497 | $4M | 0.2% | 2026-Q1 |
| Ally Bridge Group (NY) LLC trimmed | 166,959 | $4M | 0.2% | 2026-Q1 |
| Burkehill Global Management, LP new | 165,000 | $4M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 162,180 | $4M | 0.2% | 2026-Q1 |
| ALGERT GLOBAL LLC new | 157,826 | $3M | 0.1% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 154,634 | $3M | 0.1% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 139,193 | $3M | 0.1% | 2026-Q1 |
| Elmind Capital, LP new | 130,000 | $3M | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 127,812 | $3M | 0.1% | 2026-Q1 |
| Swiss National Bank new | 127,800 | $3M | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP trimmed | 127,095 | $3M | 0.1% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP new | 137,347 | $3M | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC added | 114,198 | $3M | 0.1% | 2026-Q1 |
| HighVista Strategies LLC new | 112,929 | $2M | 0.1% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL new | 106,376 | $2M | 0.1% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 102,456 | $2M | 0.1% | 2026-Q1 |
| Ghisallo Capital Management LLC new | 100,000 | $2M | 0.1% | 2026-Q1 |
| Harvest Investment Services, LLC new | 99,850 | $2M | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 98,924 | $2M | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 86,718 | $2M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 84,292 | $2M | 0.1% | 2026-Q1 |
| Informed Momentum Co LLC new | 83,187 | $2M | 0.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC new | 82,654 | $2M | 0.1% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 82,074 | $2M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 80,845 | $2M | 0.1% | 2026-Q1 |
| AyurMaya Capital Management Company, LP | 15,139,706 | $148M | 6.2% | 2025-Q4 stale |
| VANGUARD GROUP INC trimmed | 3,678,645 | $36M | 1.5% | 2025-Q4 stale |
| Woodline Partners LP added | 1,751,150 | $7M | 0.3% | 2025-Q3 stale |
| TYBOURNE CAPITAL MANAGEMENT (HK) LTD | 1,399,250 | $6M | 0.2% | 2025-Q3 stale |
| GENERAL ATLANTIC, L.P. | 1,297,530 | $5M | 0.2% | 2025-Q3 stale |
| Siren, L.L.C. new | 500,000 | $5M | 0.2% | 2025-Q4 stale |
| BML Capital Management, LLC | 1,210,415 | $5M | 0.2% | 2025-Q3 stale |
| TANG CAPITAL MANAGEMENT LLC trimmed | 1,167,009 | $5M | 0.2% | 2025-Q3 stale |
| Velan Capital Investment Management LP trimmed | 946,683 | $4M | 0.2% | 2025-Q3 stale |
| NORGES BANK added | 226,308 | $2M | 0.1% | 2025-Q3 stale |
| JANE STREET GROUP, LLC added | 173,833 | $2M | 0.1% | 2025-Q4 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.