Who owns Avalo Therapeutics, Inc. (AVTX)
Which tracked institutional funds hold AVTX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AVTX 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
40 tracked funds added or opened AVTX while 43 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
AVTX’s largest tracked holder by dollar value, FMR LLC, 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 AVTX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in AVTX 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 97 tracked filers holding AVTX, 63 increased or opened the position and 40 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 AVTX 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 19
- T. Rowe Price Investment Management, Inc.$32M
- Avoro Capital Advisors LLC$21M
- FARALLON CAPITAL MANAGEMENT LLC$14M
- RTW INVESTMENTS, LP$13M
- VANGUARD CAPITAL MANAGEMENT LLC$11M
- KENNEDY CAPITAL MANAGEMENT LLC$6M
Full exits 15
- VANGUARD GROUP INC$15M
- SILVERARC CAPITAL MANAGEMENT, LLC$10M
- Patient Square Capital LP$6M
- Jain Global LLC$4M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$4M
- SummitTX Capital, L.P.$4M
Largest adds
- FMR LLC$37M
- Caligan Partners LP$8M
- UBS Group AG$8M
- Seven Fleet Capital Management LP$7M
- Caption Management, LLC$6M
- BALYASNY ASSET MANAGEMENT L.P.$3M
Largest trims
- ORBIMED ADVISORS LLC$14M
- MARSHALL WACE, LLP$7M
- CITADEL ADVISORS LLC$5M
- Nantahala Capital Management, LLC$4M
- MORGAN STANLEY$2M
- RA CAPITAL MANAGEMENT, L.P.$2M
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 |
|---|---|---|---|---|
| FMR LLC added | 2,758,540 | $41M | 7.9% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. new | 2,162,684 | $32M | 6.2% | 2026-Q1 |
| Caligan Partners LP added | 1,635,023 | $24M | 4.7% | 2026-Q1 |
| BVF INC/IL added | 1,632,845 | $24M | 4.7% | 2026-Q1 |
| Avoro Capital Advisors LLC new | 1,410,000 | $21M | 4.0% | 2026-Q1 |
| Affinity Asset Advisors, LLC added | 1,340,840 | $20M | 3.8% | 2026-Q1 |
| Nantahala Capital Management, LLC | 1,235,000 | $18M | 3.5% | 2026-Q1 |
| UBS Group AG added | 1,141,980 | $17M | 3.3% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 916,142 | $14M | 2.6% | 2026-Q1 |
| FARALLON CAPITAL MANAGEMENT LLC new | 916,000 | $14M | 2.6% | 2026-Q1 |
| RTW INVESTMENTS, LP new | 856,962 | $13M | 2.4% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 854,000 | $13M | 2.4% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 835,484 | $12M | 2.4% | 2026-Q1 |
| TCG Crossover Management, LLC added | 738,383 | $11M | 2.1% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 731,586 | $11M | 2.1% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 719,694 | $11M | 2.1% | 2026-Q1 |
| RA CAPITAL MANAGEMENT, L.P. | 662,968 | $10M | 1.9% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 643,000 | $10M | 1.8% | 2026-Q1 |
| Commodore Capital LP | 483,000 | $7M | 1.4% | 2026-Q1 |
| ORBIMED ADVISORS LLC trimmed | 475,165 | $7M | 1.4% | 2026-Q1 |
| JENNISON ASSOCIATES LLC trimmed | 470,775 | $7M | 1.3% | 2026-Q1 |
| Caption Management, LLC added | 455,000 | $7M | 1.3% | 2026-Q1 |
| Soleus Capital Management, L.P. | 441,978 | $7M | 1.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 422,781 | $6M | 1.2% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC new | 387,982 | $6M | 1.1% | 2026-Q1 |
| DV Trading LLC new | 360,064 | $5M | 1.0% | 2026-Q1 |
| BlackRock, Inc. added | 327,082 | $5M | 0.9% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 324,258 | $5M | 0.9% | 2026-Q1 |
| Logos Global Management LP trimmed | 300,000 | $4M | 0.9% | 2026-Q1 |
| Boxer Capital Management, LLC added | 300,000 | $4M | 0.9% | 2026-Q1 |
| Pivotal bioVenture Partners Investment Advisor LLC new | 295,933 | $4M | 0.8% | 2026-Q1 |
| Seven Fleet Capital Management LP added | 213,819 | $3M | 0.6% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 193,735 | $3M | 0.6% | 2026-Q1 |
| NAN FUNG TRINITY (HK) LTD | 189,000 | $3M | 0.5% | 2026-Q1 |
| Velan Capital Investment Management LP trimmed | 185,122 | $3M | 0.5% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 194,391 | $3M | 0.5% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 174,506 | $3M | 0.5% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 173,320 | $3M | 0.5% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 172,149 | $3M | 0.5% | 2026-Q1 |
| Aberdeen Group plc added | 171,679 | $3M | 0.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 169,889 | $3M | 0.5% | 2026-Q1 |
| MORGAN STANLEY trimmed | 161,392 | $2M | 0.5% | 2026-Q1 |
| Hudson Bay Capital Management LP added | 161,087 | $2M | 0.5% | 2026-Q1 |
| Exome Asset Management LLC added | 159,341 | $2M | 0.5% | 2026-Q1 |
| Moody Aldrich Partners LLC added | 159,324 | $2M | 0.5% | 2026-Q1 |
| DEUTSCHE BANK AG\ | 150,000 | $2M | 0.4% | 2026-Q1 |
| PERCEPTIVE ADVISORS LLC | 139,667 | $2M | 0.4% | 2026-Q1 |
| STEMPOINT CAPITAL LP trimmed | 134,742 | $2M | 0.4% | 2026-Q1 |
| XTX Topco Ltd added | 126,732 | $2M | 0.4% | 2026-Q1 |
| Quadrature Capital Ltd added | 125,195 | $2M | 0.4% | 2026-Q1 |
| GREAT POINT PARTNERS LLC | 124,666 | $2M | 0.4% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 123,690 | $2M | 0.4% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 120,114 | $2M | 0.3% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 86,434 | $1M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC added | 81,285 | $1M | 0.2% | 2026-Q1 |
| Rosalind Advisors, Inc. new | 75,000 | $1M | 0.2% | 2026-Q1 |
| STATE STREET CORP trimmed | 71,654 | $1M | 0.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 64,425 | $962K | 0.2% | 2026-Q1 |
| ACUTA CAPITAL PARTNERS, LLC new | 60,808 | $908K | 0.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 60,106 | $897K | 0.2% | 2026-Q1 |
| HighVista Strategies LLC trimmed | 58,622 | $875K | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO new | 56,854 | $849K | 0.2% | 2026-Q1 |
| 683 Capital Management, LLC | 56,850 | $849K | 0.2% | 2026-Q1 |
| TD Asset Management Inc new | 51,408 | $768K | 0.1% | 2026-Q1 |
| HRT FINANCIAL LP added | 48,105 | $718K | 0.1% | 2026-Q1 |
| Man Group plc new | 46,553 | $695K | 0.1% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 40,821 | $607K | 0.1% | 2026-Q1 |
| PRELUDE CAPITAL MANAGEMENT, LLC added | 35,096 | $524K | 0.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 30,556 | $456K | 0.1% | 2026-Q1 |
| EntryPoint Capital, LLC new | 30,041 | $449K | 0.1% | 2026-Q1 |
| Aquatic Capital Management LLC new | 29,712 | $444K | 0.1% | 2026-Q1 |
| Artia Global Partners LP trimmed | 28,970 | $433K | 0.1% | 2026-Q1 |
| GLENMEDE TRUST CO NA added | 25,730 | $384K | 0.1% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 19,996 | $299K | 0.1% | 2026-Q1 |
| Brevan Howard Capital Management LP new | 19,321 | $288K | 0.1% | 2026-Q1 |
| ExodusPoint Capital Management, LP trimmed | 17,751 | $265K | 0.1% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC new | 17,227 | $257K | 0.0% | 2026-Q1 |
| VANGUARD GROUP INC added | 804,084 | $15M | 2.8% | 2025-Q4 stale |
| SILVERARC CAPITAL MANAGEMENT, LLC trimmed | 524,436 | $10M | 1.8% | 2025-Q4 stale |
| Patient Square Capital LP added | 311,966 | $6M | 1.1% | 2025-Q4 stale |
| Jain Global LLC new | 217,292 | $4M | 0.8% | 2025-Q4 stale |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 210,994 | $4M | 0.7% | 2025-Q4 stale |
| SummitTX Capital, L.P. new | 195,873 | $4M | 0.7% | 2025-Q4 stale |
| SUPERSTRING CAPITAL MANAGEMENT LP trimmed | 153,313 | $3M | 0.5% | 2025-Q4 stale |
| Squadron Capital Management LLC new | 130,000 | $2M | 0.5% | 2025-Q4 stale |
| Ally Bridge Group (NY) LLC new | 178,100 | $2M | 0.4% | 2025-Q3 stale |
| Deep Track Capital, LP trimmed | 144,600 | $2M | 0.4% | 2025-Q3 stale |
| FRED ALGER MANAGEMENT, LLC new | 80,092 | $1M | 0.3% | 2025-Q4 stale |
| Sio Capital Management, LLC | 72,173 | $1M | 0.3% | 2025-Q4 stale |
| RWA WEALTH PARTNERS, LLC trimmed | 86,516 | $1M | 0.2% | 2025-Q3 stale |
| CANTOR FITZGERALD, L. P. new | 85,247 | $1M | 0.2% | 2025-Q3 stale |
| DLD Asset Management, LP new | 75,000 | $953K | 0.2% | 2025-Q3 stale |
| Woodline Partners LP new | 52,041 | $945K | 0.2% | 2025-Q4 stale |
| Atom Investors LP added | 51,194 | $930K | 0.2% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP trimmed | 49,400 | $897K | 0.2% | 2025-Q4 stale |
| Walleye Capital LLC trimmed | 41,693 | $757K | 0.1% | 2025-Q4 stale |
| Ikarian Capital, LLC trimmed | 31,106 | $565K | 0.1% | 2025-Q4 stale |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. new | 33,337 | $424K | 0.1% | 2025-Q3 stale |
| ADAR1 Capital Management, LLC trimmed | 32,393 | $412K | 0.1% | 2025-Q3 stale |
| Birchview Capital, LP new | 31,000 | $394K | 0.1% | 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.