Who owns WEAV (WEAV)
Which tracked institutional funds hold WEAV, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See WEAV 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
23 tracked funds added or opened WEAV while 59 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
WEAV’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 WEAV more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in WEAV 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 181 tracked filers holding WEAV, 103 increased or opened the position and 96 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 WEAV 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 13
- Newtyn Management, LLC$32M
- VANGUARD CAPITAL MANAGEMENT LLC$13M
- VANGUARD PORTFOLIO MANAGEMENT LLC$11M
- Pale Fire Capital SE$7M
- Engine Capital Management, LP$5M
- MARSHALL WACE, LLP$4M
Full exits 12
- VANGUARD GROUP INC$40M
- Capitolis Liquid Global Markets LLC$3M
- Granahan Investment Management, LLC$2M
- Irenic Capital Management LP$2M
- COMERICA BANK$2M
- Verition Fund Management LLC$2M
Largest adds
- Divisar Capital Management LLC$4M
- FEDERATED HERMES, INC.$3M
- AQR CAPITAL MANAGEMENT LLC$2M
- TWO SIGMA INVESTMENTS, LP$2M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$1M
- BARCLAYS PLC$611K
Largest trims
- FMR LLC$55M
- BlackRock, Inc.$15M
- FRONTIER CAPITAL MANAGEMENT CO LLC$12M
- WASATCH ADVISORS LP$10M
- Gumshoe Capital Management LLC$9M
- CROSSLINK CAPITAL INC$8M
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 |
|---|---|---|---|---|
| Newtyn Management, LLC new | 7,000,000 | $32M | 7.4% | 2026-Q1 |
| BlackRock, Inc. trimmed | 4,721,153 | $22M | 5.0% | 2026-Q1 |
| CROSSLINK CAPITAL INC added | 4,246,858 | $20M | 4.5% | 2026-Q1 |
| Gumshoe Capital Management LLC added | 3,068,938 | $14M | 3.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 2,760,746 | $13M | 2.9% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 2,429,236 | $11M | 2.6% | 2026-Q1 |
| DISCIPLINED GROWTH INVESTORS INC /MN trimmed | 2,276,381 | $11M | 2.4% | 2026-Q1 |
| STATE STREET CORP added | 2,192,445 | $10M | 2.3% | 2026-Q1 |
| FRONTIER CAPITAL MANAGEMENT CO LLC trimmed | 2,099,389 | $10M | 2.2% | 2026-Q1 |
| Divisar Capital Management LLC added | 1,840,100 | $9M | 1.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,594,746 | $7M | 1.7% | 2026-Q1 |
| Pale Fire Capital SE new | 1,492,806 | $7M | 1.6% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 1,487,900 | $7M | 1.6% | 2026-Q1 |
| Huber Capital Management LLC added | 1,358,682 | $6M | 1.4% | 2026-Q1 |
| ArrowMark Colorado Holdings LLC added | 1,238,974 | $6M | 1.3% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. trimmed | 1,226,646 | $6M | 1.3% | 2026-Q1 |
| CenterBook Partners LP added | 1,167,427 | $5M | 1.2% | 2026-Q1 |
| Engine Capital Management, LP new | 1,051,525 | $5M | 1.1% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,051,494 | $5M | 1.1% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 929,483 | $4M | 1.0% | 2026-Q1 |
| MARSHALL WACE, LLP added | 872,205 | $4M | 0.9% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 861,078 | $4M | 0.9% | 2026-Q1 |
| Lane Generational LLC added | 826,201 | $4M | 0.9% | 2026-Q1 |
| Bank of New York Mellon Corp added | 805,788 | $4M | 0.8% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 776,123 | $4M | 0.8% | 2026-Q1 |
| Meros Investment Management, LP added | 755,404 | $3M | 0.8% | 2026-Q1 |
| Harber Asset Management LLC new | 735,795 | $3M | 0.8% | 2026-Q1 |
| WASATCH ADVISORS LP trimmed | 661,702 | $3M | 0.7% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 642,501 | $3M | 0.7% | 2026-Q1 |
| Nuveen, LLC added | 620,212 | $3M | 0.7% | 2026-Q1 |
| Potrero Capital Research LLC trimmed | 619,392 | $3M | 0.7% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 565,729 | $3M | 0.6% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 544,278 | $3M | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP added | 530,365 | $2M | 0.6% | 2026-Q1 |
| Western Standard LLC new | 514,093 | $2M | 0.5% | 2026-Q1 |
| CITIGROUP INC added | 494,892 | $2M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 458,922 | $2M | 0.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 388,999 | $2M | 0.4% | 2026-Q1 |
| Y-Intercept (Hong Kong) Ltd added | 369,969 | $2M | 0.4% | 2026-Q1 |
| CAPITOLIS LIQUID GLOBAL MARKETS LLC new | 364,262 | $2M | 0.4% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 364,240 | $2M | 0.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 330,418 | $2M | 0.3% | 2026-Q1 |
| BARCLAYS PLC added | 308,318 | $1M | 0.3% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 260,420 | $1M | 0.3% | 2026-Q1 |
| NORGES BANK | 103,200 | $1M | 0.3% | 2026-Q1 |
| Trexquant Investment LP added | 239,167 | $1M | 0.3% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 223,431 | $1M | 0.2% | 2026-Q1 |
| ACADIAN ASSET MANAGEMENT LLC added | 181,802 | $838K | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 179,348 | $829K | 0.2% | 2026-Q1 |
| UBS Group AG trimmed | 171,623 | $793K | 0.2% | 2026-Q1 |
| Man Group plc added | 168,408 | $778K | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 170,293 | $751K | 0.2% | 2026-Q1 |
| FMR LLC trimmed | 161,212 | $745K | 0.2% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 158,151 | $731K | 0.2% | 2026-Q1 |
| FNY Investment Advisers, LLC added | 154,476 | $713K | 0.2% | 2026-Q1 |
| FIFTH THIRD BANCORP new | 134,733 | $622K | 0.1% | 2026-Q1 |
| Creative Planning added | 123,785 | $572K | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 120,464 | $557K | 0.1% | 2026-Q1 |
| Inspire Investing, LLC added | 112,672 | $521K | 0.1% | 2026-Q1 |
| SCALAR GAUGE MANAGEMENT, LLC trimmed | 104,188 | $481K | 0.1% | 2026-Q1 |
| Crescent Grove Advisors, LLC | 103,101 | $476K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 92,959 | $429K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 5,301,464 | $40M | 9.2% | 2025-Q4 stale |
| PELION, INC. | 3,498,709 | $23M | 5.3% | 2025-Q3 stale |
| AXA S.A. | 1,294,281 | $11M | 2.5% | 2025-Q2 stale |
| EVENTIDE ASSET MANAGEMENT, LLC trimmed | 928,642 | $10M | 2.4% | 2025-Q1 stale |
| Driehaus Capital Management LLC trimmed | 852,351 | $9M | 2.2% | 2025-Q1 stale |
| AXA Investment Managers S.A. new | 1,226,646 | $8M | 1.9% | 2025-Q3 stale |
| Thrivent Financial for Lutherans added | 1,133,532 | $8M | 1.7% | 2025-Q3 stale |
| OSTERWEIS CAPITAL MANAGEMENT INC trimmed | 345,610 | $4M | 0.9% | 2025-Q1 stale |
| LORD, ABBETT & CO. LLC trimmed | 452,146 | $4M | 0.9% | 2025-Q2 stale |
| Capitolis Liquid Global Markets LLC | 372,562 | $3M | 0.6% | 2025-Q4 stale |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 392,123 | $3M | 0.6% | 2025-Q3 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 264,256 | $2M | 0.5% | 2025-Q2 stale |
| Granahan Investment Management, LLC added | 280,610 | $2M | 0.5% | 2025-Q4 stale |
| NEXT CENTURY GROWTH INVESTORS LLC trimmed | 229,306 | $2M | 0.4% | 2025-Q2 stale |
| ZACKS INVESTMENT MANAGEMENT added | 159,184 | $2M | 0.4% | 2025-Q1 stale |
| Irenic Capital Management LP new | 226,731 | $2M | 0.4% | 2025-Q4 stale |
| ALGERT GLOBAL LLC trimmed | 256,467 | $2M | 0.4% | 2025-Q3 stale |
| Qube Research & Technologies Ltd trimmed | 254,498 | $2M | 0.4% | 2025-Q3 stale |
| D. E. Shaw & Co., Inc. trimmed | 195,056 | $2M | 0.4% | 2025-Q2 stale |
| COMERICA BANK trimmed | 212,150 | $2M | 0.4% | 2025-Q4 stale |
| Verition Fund Management LLC trimmed | 199,685 | $2M | 0.3% | 2025-Q4 stale |
| BALYASNY ASSET MANAGEMENT L.P. added | 111,024 | $1M | 0.3% | 2025-Q1 stale |
| Archon Capital Management LLC new | 142,340 | $1M | 0.3% | 2025-Q2 stale |
| Knights of Columbus Asset Advisors LLC added | 100,192 | $1M | 0.3% | 2025-Q1 stale |
| Squarepoint Ops LLC | 137,000 | $1M | 0.2% | 2025-Q4 stale |
| Swiss National Bank added | 121,500 | $922K | 0.2% | 2025-Q4 stale |
| Legacy Advisors, LLC new | 872 | $799K | 0.2% | 2025-Q1 stale |
| TWO SIGMA ADVISERS, LP trimmed | 91,000 | $691K | 0.2% | 2025-Q4 stale |
| XTX Topco Ltd added | 85,442 | $649K | 0.1% | 2025-Q4 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | 76,800 | $583K | 0.1% | 2025-Q4 stale |
| Brevan Howard Capital Management LP added | 75,332 | $572K | 0.1% | 2025-Q4 stale |
| AMERIPRISE FINANCIAL INC trimmed | 63,377 | $527K | 0.1% | 2025-Q2 stale |
| Cubist Systematic Strategies, LLC trimmed | 69,421 | $464K | 0.1% | 2025-Q3 stale |
| Petrus Trust Company, LTA | 55,269 | $460K | 0.1% | 2025-Q2 stale |
| B. Metzler seel. Sohn & Co. AG added | 66,715 | $446K | 0.1% | 2025-Q3 stale |
| Nebula Research & Development LLC added | 52,011 | $433K | 0.1% | 2025-Q2 stale |
| FIRST TRUST ADVISORS LP new | 51,327 | $427K | 0.1% | 2025-Q2 stale |
| CIBC Private Wealth Group LLC added | 54,137 | $411K | 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.