Who owns IDYA (IDYA)
Which tracked institutional funds hold IDYA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See IDYA 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
46 tracked funds added or opened IDYA while 71 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
IDYA’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 conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in IDYA 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 255 tracked filers holding IDYA, 133 increased or opened the position and 111 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 IDYA 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
- VANGUARD CAPITAL MANAGEMENT LLC$124M
- VANGUARD PORTFOLIO MANAGEMENT LLC$25M
- VANGUARD FIDUCIARY TRUST CO$19M
- JENNISON ASSOCIATES LLC$9M
- SummitTX Capital, L.P.$5M
- Tidal Investments LLC$4M
Full exits 13
- VANGUARD GROUP INC$151M
- Iron Triangle Partners LP$16M
- EVENTIDE ASSET MANAGEMENT, LLC$10M
- STEMPOINT CAPITAL LP$6M
- Sio Capital Management, LLC$3M
- NEOS Investment Management LLC$2M
Largest adds
- MORGAN STANLEY$19M
- BNP PARIBAS ASSET MANAGEMENT Holding S.A.$13M
- DIMENSIONAL FUND ADVISORS LP$12M
- GEODE CAPITAL MANAGEMENT, LLC$12M
- Sofinnova Investments, Inc.$7M
- Logos Global Management LP$7M
Largest trims
- Point72 Asset Management, L.P.$53M
- DEERFIELD MANAGEMENT COMPANY, L.P.$23M
- FEDERATED HERMES, INC.$18M
- STATE STREET CORP$17M
- FMR LLC$16M
- BALYASNY ASSET MANAGEMENT L.P.$14M
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 | 13,172,008 | $439M | 13.1% | 2026-Q1 |
| BlackRock, Inc. added | 8,442,133 | $281M | 8.4% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC added | 7,265,253 | $242M | 7.2% | 2026-Q1 |
| Capital Research Global Investors trimmed | 5,163,543 | $172M | 5.1% | 2026-Q1 |
| BAKER BROS. ADVISORS LP added | 3,946,515 | $131M | 3.9% | 2026-Q1 |
| STATE STREET CORP trimmed | 3,781,167 | $126M | 3.8% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,732,422 | $124M | 3.7% | 2026-Q1 |
| Logos Global Management LP added | 3,450,000 | $115M | 3.4% | 2026-Q1 |
| FEDERATED HERMES, INC. trimmed | 2,987,107 | $100M | 3.0% | 2026-Q1 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 2,823,500 | $94M | 2.8% | 2026-Q1 |
| Fiera Capital Corp added | 2,527,076 | $84M | 2.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,500,724 | $83M | 2.5% | 2026-Q1 |
| MORGAN STANLEY added | 1,860,453 | $62M | 1.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 1,655,617 | $55M | 1.6% | 2026-Q1 |
| DEERFIELD MANAGEMENT COMPANY, L.P. trimmed | 1,530,008 | $51M | 1.5% | 2026-Q1 |
| GSK plc | 1,333,333 | $44M | 1.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,333,478 | $44M | 1.3% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 1,315,869 | $44M | 1.3% | 2026-Q1 |
| Sofinnova Investments, Inc. added | 1,131,786 | $38M | 1.1% | 2026-Q1 |
| Candriam S.C.A. added | 1,107,708 | $37M | 1.1% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 1,101,145 | $37M | 1.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 942,091 | $31M | 0.9% | 2026-Q1 |
| Ensign Peak Advisors, Inc trimmed | 899,504 | $30M | 0.9% | 2026-Q1 |
| Fisher Asset Management, LLC trimmed | 882,699 | $29M | 0.9% | 2026-Q1 |
| First Turn Management, LLC added | 873,838 | $29M | 0.9% | 2026-Q1 |
| UBS Group AG trimmed | 762,548 | $25M | 0.8% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 745,593 | $25M | 0.7% | 2026-Q1 |
| NORTHERN TRUST CORP added | 734,121 | $24M | 0.7% | 2026-Q1 |
| Pictet Asset Management Holding SA trimmed | 715,906 | $24M | 0.7% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 715,527 | $24M | 0.7% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 679,400 | $23M | 0.7% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 584,033 | $19M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 561,563 | $19M | 0.6% | 2026-Q1 |
| Aberdeen Group plc trimmed | 545,631 | $18M | 0.5% | 2026-Q1 |
| Redmile Group, LLC trimmed | 521,117 | $17M | 0.5% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 515,445 | $17M | 0.5% | 2026-Q1 |
| DAFNA Capital Management LLC trimmed | 476,740 | $16M | 0.5% | 2026-Q1 |
| TANG CAPITAL MANAGEMENT LLC | 450,000 | $15M | 0.4% | 2026-Q1 |
| Nuveen, LLC added | 448,273 | $15M | 0.4% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 378,442 | $13M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. trimmed | 327,901 | $11M | 0.3% | 2026-Q1 |
| GENERAL AMERICAN INVESTORS CO INC | 280,261 | $9M | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 292,106 | $9M | 0.3% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 256,318 | $9M | 0.3% | 2026-Q1 |
| JENNISON ASSOCIATES LLC trimmed | 255,764 | $9M | 0.3% | 2026-Q1 |
| Rhenman & Partners Asset Management AB added | 255,500 | $9M | 0.3% | 2026-Q1 |
| Bank of New York Mellon Corp added | 250,325 | $8M | 0.2% | 2026-Q1 |
| Nicholas Investment Partners, LP added | 248,202 | $8M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 243,328 | $8M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 241,508 | $8M | 0.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 230,268 | $8M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 228,980 | $8M | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 208,345 | $7M | 0.2% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC | 202,434 | $7M | 0.2% | 2026-Q1 |
| Woodline Partners LP | 201,667 | $7M | 0.2% | 2026-Q1 |
| Alyeska Investment Group, L.P. | 192,308 | $6M | 0.2% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 177,272 | $6M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 175,151 | $6M | 0.2% | 2026-Q1 |
| Man Group plc added | 171,846 | $6M | 0.2% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC trimmed | 181,593 | $6M | 0.2% | 2026-Q1 |
| SummitTX Capital, L.P. trimmed | 162,733 | $5M | 0.2% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 161,837 | $5M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 157,270 | $5M | 0.2% | 2026-Q1 |
| Swiss National Bank | 155,600 | $5M | 0.2% | 2026-Q1 |
| Creative Planning added | 145,028 | $5M | 0.1% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC trimmed | 141,048 | $5M | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 134,932 | $4M | 0.1% | 2026-Q1 |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. added | 122,064 | $4M | 0.1% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 120,603 | $4M | 0.1% | 2026-Q1 |
| Atle Fund Management AB trimmed | 31,133 | $4M | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 119,116 | $4M | 0.1% | 2026-Q1 |
| Tema ETFs LLC added | 112,309 | $4M | 0.1% | 2026-Q1 |
| Tidal Investments LLC new | 112,309 | $4M | 0.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 111,112 | $4M | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 107,383 | $4M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 100,786 | $3M | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 99,278 | $3M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 96,655 | $3M | 0.1% | 2026-Q1 |
| PLATINUM INVESTMENT MANAGEMENT LTD trimmed | 91,637 | $3M | 0.1% | 2026-Q1 |
| CITIGROUP INC trimmed | 88,880 | $3M | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC trimmed | 88,133 | $3M | 0.1% | 2026-Q1 |
| Rafferty Asset Management, LLC trimmed | 86,684 | $3M | 0.1% | 2026-Q1 |
| Seven Fleet Capital Management LP new | 86,283 | $3M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 4,356,260 | $151M | 4.5% | 2025-Q4 stale |
| RA CAPITAL MANAGEMENT, L.P. | 1,347,252 | $22M | 0.7% | 2025-Q1 stale |
| Iron Triangle Partners LP added | 467,484 | $16M | 0.5% | 2025-Q4 stale |
| SAMLYN CAPITAL, LLC trimmed | 791,266 | $13M | 0.4% | 2025-Q1 stale |
| EVENTIDE ASSET MANAGEMENT, LLC trimmed | 284,069 | $10M | 0.3% | 2025-Q4 stale |
| Rosalind Advisors, Inc. trimmed | 350,000 | $10M | 0.3% | 2025-Q3 stale |
| AXA Investment Managers S.A. new | 325,513 | $9M | 0.3% | 2025-Q3 stale |
| Avidity Partners Management LP trimmed | 445,000 | $7M | 0.2% | 2025-Q1 stale |
| MPM BIOIMPACT LLC added | 430,161 | $7M | 0.2% | 2025-Q1 stale |
| AXA S.A. added | 324,543 | $7M | 0.2% | 2025-Q2 stale |
| Schonfeld Strategic Advisors LLC added | 225,733 | $6M | 0.2% | 2025-Q3 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 283,811 | $6M | 0.2% | 2025-Q2 stale |
| RENAISSANCE TECHNOLOGIES LLC added | 357,600 | $6M | 0.2% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP trimmed | 266,600 | $6M | 0.2% | 2025-Q2 stale |
| STEMPOINT CAPITAL LP trimmed | 161,659 | $6M | 0.2% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 190,421 | $3M | 0.1% | 2025-Q1 stale |
| Foresite Capital Management VI LLC new | 144,468 | $3M | 0.1% | 2025-Q2 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.