Who owns FLEX (FLEX)
Which tracked institutional funds hold FLEX, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See FLEX 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
292 tracked funds added or opened FLEX while 137 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
FLEX’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 0.1% of theirs — a 0.1pp gap the other way — the median holder sizes FLEX more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in FLEX 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 869 tracked filers holding FLEX, 456 increased or opened the position and 391 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 FLEX 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 55
- VANGUARD PORTFOLIO MANAGEMENT LLC$1.3B
- VANGUARD CAPITAL MANAGEMENT LLC$1.1B
- VANGUARD FIDUCIARY TRUST CO$151M
- VANGUARD ASSET MANAGEMENT, Ltd$42M
- Clearbridge Investments, LLC$19M
- Holocene Advisors, LP$15M
Full exits 45
- VANGUARD GROUP INC$2.3B
- Capital International Investors$52M
- Alyeska Investment Group, L.P.$30M
- LOGAN CAPITAL MANAGEMENT INC$27M
- Brandywine Global Investment Management, LLC$24M
- Simcoe Capital Management, LLC$17M
Largest adds
- WELLINGTON MANAGEMENT GROUP LLP$259M
- BNP PARIBAS ASSET MANAGEMENT Holding S.A.$156M
- Boston Partners$119M
- KBC Group NV$110M
- STATE STREET CORP$88M
- GEODE CAPITAL MANAGEMENT, LLC$85M
Largest trims
- BlackRock, Inc.$855M
- NORGES BANK$122M
- LSV ASSET MANAGEMENT$94M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$58M
- Junto Capital Management LP$52M
- Artisan Partners Limited Partnership$50M
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 | 32,985,339 | $2.2B | 12.9% | 2026-Q1 |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 25,383,448 | $1.7B | 10.0% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC added | 20,619,740 | $1.3B | 8.1% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 20,238,286 | $1.3B | 7.9% | 2026-Q1 |
| STATE STREET CORP added | 14,272,824 | $934M | 5.6% | 2026-Q1 |
| Boston Partners added | 12,993,140 | $852M | 5.1% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 8,308,577 | $543M | 3.3% | 2026-Q1 |
| LYRICAL ASSET MANAGEMENT LP trimmed | 6,960,981 | $456M | 2.7% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 5,923,097 | $388M | 2.3% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 5,419,282 | $355M | 2.1% | 2026-Q1 |
| Polar Capital Holdings Plc trimmed | 3,610,561 | $236M | 1.4% | 2026-Q1 |
| NORGES BANK added | 5,984,086 | $198M | 1.2% | 2026-Q1 |
| EARNEST PARTNERS LLC trimmed | 2,629,096 | $172M | 1.0% | 2026-Q1 |
| MORGAN STANLEY added | 2,620,834 | $172M | 1.0% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 2,613,339 | $171M | 1.0% | 2026-Q1 |
| SEI INVESTMENTS CO added | 2,230,622 | $146M | 0.9% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 2,223,180 | $146M | 0.9% | 2026-Q1 |
| KBC Group NV added | 1,965,811 | $129M | 0.8% | 2026-Q1 |
| Amundi added | 1,494,418 | $98M | 0.6% | 2026-Q1 |
| Pacer Advisors, Inc. added | 1,351,801 | $87M | 0.5% | 2026-Q1 |
| Allianz Asset Management GmbH trimmed | 1,286,224 | $84M | 0.5% | 2026-Q1 |
| COOKSON PEIRCE & CO INC trimmed | 1,185,136 | $78M | 0.5% | 2026-Q1 |
| Swiss National Bank added | 1,085,250 | $71M | 0.4% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 1,078,891 | $71M | 0.4% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 1,057,889 | $69M | 0.4% | 2026-Q1 |
| DekaBank Deutsche Girozentrale added | 1,067,652 | $68M | 0.4% | 2026-Q1 |
| Squarepoint Ops LLC added | 1,017,160 | $67M | 0.4% | 2026-Q1 |
| Man Group plc added | 1,000,378 | $65M | 0.4% | 2026-Q1 |
| Park West Asset Management LLC added | 991,497 | $65M | 0.4% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 935,032 | $61M | 0.4% | 2026-Q1 |
| SOUND SHORE MANAGEMENT INC /CT/ trimmed | 924,882 | $61M | 0.4% | 2026-Q1 |
| National Pension Service added | 917,792 | $60M | 0.4% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 828,398 | $54M | 0.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 820,557 | $54M | 0.3% | 2026-Q1 |
| Clear Harbor Asset Management, LLC trimmed | 820,449 | $54M | 0.3% | 2026-Q1 |
| California Public Employees Retirement System added | 817,340 | $54M | 0.3% | 2026-Q1 |
| Electron Capital Partners, LLC trimmed | 798,774 | $52M | 0.3% | 2026-Q1 |
| STOREBRAND ASSET MANAGEMENT AS added | 771,217 | $50M | 0.3% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 769,008 | $50M | 0.3% | 2026-Q1 |
| BRANDES INVESTMENT PARTNERS, LP trimmed | 757,115 | $50M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 704,098 | $46M | 0.3% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 689,426 | $45M | 0.3% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 683,821 | $45M | 0.3% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 620,871 | $41M | 0.2% | 2026-Q1 |
| BECKER CAPITAL MANAGEMENT INC trimmed | 558,598 | $37M | 0.2% | 2026-Q1 |
| Artisan Partners Limited Partnership trimmed | 548,306 | $36M | 0.2% | 2026-Q1 |
| SG Americas Securities, LLC added | 532,373 | $35M | 0.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,170,795 | $35M | 0.2% | 2026-Q1 |
| Treasurer of the State of North Carolina added | 523,361 | $34M | 0.2% | 2026-Q1 |
| WORLDQUANT MILLENNIUM ADVISORS LLC added | 463,373 | $30M | 0.2% | 2026-Q1 |
| Retirement Systems of Alabama added | 450,748 | $30M | 0.2% | 2026-Q1 |
| HANCOCK WHITNEY CORP added | 322,509 | $30M | 0.2% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 447,985 | $29M | 0.2% | 2026-Q1 |
| PFA Pension, Forsikringsaktieselskab added | 443,564 | $29M | 0.2% | 2026-Q1 |
| Portolan Capital Management, LLC trimmed | 443,128 | $29M | 0.2% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 422,761 | $28M | 0.2% | 2026-Q1 |
| Blue Door Asset Management, LLC added | 420,350 | $28M | 0.2% | 2026-Q1 |
| Junto Capital Management LP trimmed | 415,149 | $27M | 0.2% | 2026-Q1 |
| Oribel Capital Management, LP added | 414,200 | $27M | 0.2% | 2026-Q1 |
| J. Safra Sarasin Holding AG added | 401,094 | $26M | 0.2% | 2026-Q1 |
| GENDELL JEFFREY L trimmed | 400,000 | $26M | 0.2% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 399,056 | $26M | 0.2% | 2026-Q1 |
| Robeco Institutional Asset Management B.V. added | 380,636 | $25M | 0.1% | 2026-Q1 |
| FRONTIER CAPITAL MANAGEMENT CO LLC added | 361,586 | $24M | 0.1% | 2026-Q1 |
| Aberdeen Group plc added | 354,608 | $23M | 0.1% | 2026-Q1 |
| COZAD ASSET MANAGEMENT INC trimmed | 351,590 | $23M | 0.1% | 2026-Q1 |
| Capital World Investors added | 350,788 | $23M | 0.1% | 2026-Q1 |
| Crossmark Global Holdings, Inc. added | 346,216 | $23M | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 728,525 | $22M | 0.1% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 314,624 | $21M | 0.1% | 2026-Q1 |
| Vinva Investment Management Ltd added | 337,980 | $20M | 0.1% | 2026-Q1 |
| Shannon River Fund Management LLC trimmed | 311,223 | $20M | 0.1% | 2026-Q1 |
| BROWN ADVISORY INC added | 310,085 | $20M | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 294,787 | $19M | 0.1% | 2026-Q1 |
| Clearbridge Investments, LLC new | 289,423 | $19M | 0.1% | 2026-Q1 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM added | 274,516 | $18M | 0.1% | 2026-Q1 |
| TOCQUEVILLE ASSET MANAGEMENT L.P. trimmed | 259,437 | $17M | 0.1% | 2026-Q1 |
| Alight Capital Management LP added | 257,469 | $17M | 0.1% | 2026-Q1 |
| UBS Group AG added | 565,375 | $17M | 0.1% | 2026-Q1 |
| KADENSA CAPITAL Ltd trimmed | 249,984 | $16M | 0.1% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 357,295 | $16M | 0.1% | 2026-Q1 |
| Korea Investment CORP added | 233,483 | $15M | 0.1% | 2026-Q1 |
| SORA INVESTORS LLC added | 233,197 | $15M | 0.1% | 2026-Q1 |
| Trexquant Investment LP trimmed | 231,041 | $15M | 0.1% | 2026-Q1 |
| Holocene Advisors, LP trimmed | 228,683 | $15M | 0.1% | 2026-Q1 |
| Jefferies Financial Group Inc. added | 226,635 | $15M | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 225,563 | $15M | 0.1% | 2026-Q1 |
| Gradient Investments LLC added | 220,241 | $14M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 38,387,165 | $2.3B | 13.9% | 2025-Q4 stale |
| WESTFIELD CAPITAL MANAGEMENT CO LP trimmed | 2,873,012 | $95M | 0.6% | 2025-Q1 stale |
| Capital International Investors | 864,808 | $52M | 0.3% | 2025-Q4 stale |
| Cartenna Capital, LP trimmed | 700,000 | $35M | 0.2% | 2025-Q2 stale |
| Alyeska Investment Group, L.P. trimmed | 495,550 | $30M | 0.2% | 2025-Q4 stale |
| LOGAN CAPITAL MANAGEMENT INC added | 444,176 | $27M | 0.2% | 2025-Q4 stale |
| Brandywine Global Investment Management, LLC trimmed | 390,663 | $24M | 0.1% | 2025-Q4 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 430,165 | $21M | 0.1% | 2025-Q2 stale |
| VAN ECK ASSOCIATES CORP added | 304,602 | $18M | 0.1% | 2025-Q3 stale |
| Simcoe Capital Management, LLC trimmed | 281,295 | $17M | 0.1% | 2025-Q4 stale |
| D. SCOTT NEAL, INC. added | 267,835 | $16M | 0.1% | 2025-Q3 stale |
| Merewether Investment Management, LP trimmed | 456,036 | $15M | 0.1% | 2025-Q1 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.