Who owns WAT (WAT)
Which tracked institutional funds hold WAT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See WAT 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
378 tracked funds added or opened WAT while 191 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
WAT’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 0.0pp gap the other way — the median holder sizes WAT more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in WAT 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 1166 tracked filers holding WAT, 1023 increased or opened the position and 210 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 WAT 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 137
- VANGUARD CAPITAL MANAGEMENT LLC$1.9B
- VANGUARD PORTFOLIO MANAGEMENT LLC$1.4B
- First Eagle Investment Management, LLC$469M
- VIKING GLOBAL INVESTORS LP$374M
- VANGUARD FIDUCIARY TRUST CO$166M
- Clearbridge Investments, LLC$142M
Full exits 41
- VANGUARD GROUP INC$2.8B
- Iron Triangle Partners LP$40M
- HRT FINANCIAL LP$26M
- LOGAN CAPITAL MANAGEMENT INC$14M
- TUDOR INVESTMENT CORP ET AL$10M
- Portolan Capital Management, LLC$9M
Largest adds
- T. Rowe Price Investment Management, Inc.$1.3B
- MASSACHUSETTS FINANCIAL SERVICES CO /MA/$1.1B
- JPMORGAN CHASE & CO$414M
- STATE STREET CORP$280M
- Invesco Ltd.$193M
- FRANKLIN RESOURCES INC$188M
Largest trims
- Fundsmith LLP$395M
- GUARDCAP ASSET MANAGEMENT Ltd$198M
- BlackRock, Inc.$173M
- MARSHALL WACE, LLP$153M
- MILLENNIUM MANAGEMENT LLC$149M
- Veritas Asset Management LLP$114M
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 |
|---|---|---|---|---|
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 4,630,118 | $2.1B | 7.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 6,378,775 | $1.9B | 6.5% | 2026-Q1 |
| BlackRock, Inc. added | 6,348,780 | $1.9B | 6.4% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 4,754,185 | $1.4B | 4.8% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 4,663,879 | $1.4B | 4.7% | 2026-Q1 |
| STATE STREET CORP added | 4,362,010 | $1.3B | 4.4% | 2026-Q1 |
| Fundsmith LLP trimmed | 3,212,075 | $957M | 3.3% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 2,116,737 | $804M | 2.7% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,646,458 | $785M | 2.7% | 2026-Q1 |
| Invesco Ltd. added | 2,137,453 | $637M | 2.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 1,973,648 | $579M | 2.0% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC added | 1,638,772 | $488M | 1.7% | 2026-Q1 |
| First Eagle Investment Management, LLC new | 1,575,187 | $469M | 1.6% | 2026-Q1 |
| Mawer Investment Management Ltd. added | 1,403,627 | $418M | 1.4% | 2026-Q1 |
| VIKING GLOBAL INVESTORS LP new | 1,256,462 | $374M | 1.3% | 2026-Q1 |
| MORGAN STANLEY added | 1,221,914 | $364M | 1.2% | 2026-Q1 |
| Veritas Asset Management LLP trimmed | 1,200,813 | $358M | 1.2% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 1,124,028 | $335M | 1.1% | 2026-Q1 |
| FUNDSMITH INVESTMENT SERVICES LTD. trimmed | 1,096,855 | $327M | 1.1% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,042,394 | $310M | 1.1% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 1,025,240 | $305M | 1.0% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 1,019,289 | $304M | 1.0% | 2026-Q1 |
| NORGES BANK added | 817,956 | $301M | 1.0% | 2026-Q1 |
| Holocene Advisors, LP added | 917,066 | $273M | 0.9% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 843,636 | $251M | 0.9% | 2026-Q1 |
| AKO CAPITAL LLP added | 816,929 | $243M | 0.8% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 814,716 | $243M | 0.8% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 810,385 | $241M | 0.8% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 794,589 | $237M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 772,524 | $230M | 0.8% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 709,538 | $211M | 0.7% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC added | 695,644 | $207M | 0.7% | 2026-Q1 |
| Legal & General Group Plc added | 684,813 | $204M | 0.7% | 2026-Q1 |
| UBS Group AG added | 640,339 | $191M | 0.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 563,060 | $168M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 556,148 | $166M | 0.6% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 535,684 | $160M | 0.5% | 2026-Q1 |
| Artisan Partners Limited Partnership added | 534,576 | $159M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp added | 528,908 | $158M | 0.5% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 525,246 | $156M | 0.5% | 2026-Q1 |
| FMR LLC added | 498,573 | $148M | 0.5% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC added | 488,854 | $147M | 0.5% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 486,579 | $145M | 0.5% | 2026-Q1 |
| Clearbridge Investments, LLC added | 478,271 | $142M | 0.5% | 2026-Q1 |
| Focus Partners Wealth added | 474,862 | $141M | 0.5% | 2026-Q1 |
| Findlay Park Partners LLP added | 467,245 | $139M | 0.5% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 465,000 | $138M | 0.5% | 2026-Q1 |
| BECK MACK & OLIVER LLC added | 432,206 | $129M | 0.4% | 2026-Q1 |
| Amundi added | 432,146 | $129M | 0.4% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 382,948 | $114M | 0.4% | 2026-Q1 |
| LONDON CO OF VIRGINIA trimmed | 355,310 | $106M | 0.4% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 354,375 | $106M | 0.4% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 316,203 | $94M | 0.3% | 2026-Q1 |
| Impax Asset Management Group plc added | 314,584 | $94M | 0.3% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 303,112 | $90M | 0.3% | 2026-Q1 |
| HARRIS ASSOCIATES L P new | 288,712 | $86M | 0.3% | 2026-Q1 |
| Swiss National Bank added | 288,614 | $86M | 0.3% | 2026-Q1 |
| Champlain Investment Partners, LLC trimmed | 279,840 | $83M | 0.3% | 2026-Q1 |
| Nuveen, LLC added | 277,703 | $83M | 0.3% | 2026-Q1 |
| Madison Asset Management, LLC trimmed | 272,649 | $81M | 0.3% | 2026-Q1 |
| COOKE & BIELER LP new | 268,853 | $80M | 0.3% | 2026-Q1 |
| First Pacific Advisors, LP new | 267,472 | $80M | 0.3% | 2026-Q1 |
| TD Asset Management Inc added | 266,536 | $79M | 0.3% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB added | 266,828 | $79M | 0.3% | 2026-Q1 |
| NATIXIS ADVISORS, LLC added | 257,380 | $77M | 0.3% | 2026-Q1 |
| LPL Financial LLC added | 253,713 | $76M | 0.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 235,371 | $70M | 0.2% | 2026-Q1 |
| JONES FINANCIAL COMPANIES LLLP added | 236,792 | $68M | 0.2% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 228,857 | $68M | 0.2% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 226,886 | $68M | 0.2% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 224,646 | $67M | 0.2% | 2026-Q1 |
| Epoch Investment Partners, Inc. added | 224,431 | $67M | 0.2% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. added | 223,324 | $67M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 214,292 | $64M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 208,503 | $62M | 0.2% | 2026-Q1 |
| Meridiem Capital Partners LP added | 207,814 | $62M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 207,364 | $62M | 0.2% | 2026-Q1 |
| BRISTOL JOHN W & CO INC /NY/ added | 199,532 | $59M | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 197,565 | $59M | 0.2% | 2026-Q1 |
| STATE FARM MUTUAL AUTOMOBILE INSURANCE CO added | 189,881 | $57M | 0.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 185,168 | $55M | 0.2% | 2026-Q1 |
| Newport Trust Company, LLC added | 183,921 | $55M | 0.2% | 2026-Q1 |
| BARCLAYS PLC added | 180,779 | $54M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 178,037 | $53M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 169,723 | $51M | 0.2% | 2026-Q1 |
| National Pension Service added | 167,373 | $50M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 154,059 | $46M | 0.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 148,660 | $44M | 0.2% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP added | 145,950 | $43M | 0.1% | 2026-Q1 |
| Robeco Schweiz AG added | 144,872 | $43M | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 144,202 | $43M | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 142,167 | $42M | 0.1% | 2026-Q1 |
| California Public Employees Retirement System added | 138,423 | $41M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 7,442,157 | $2.8B | 9.6% | 2025-Q4 stale |
| GENERATION INVESTMENT MANAGEMENT LLP trimmed | 755,325 | $278M | 0.9% | 2025-Q1 stale |
| JUPITER ASSET MANAGEMENT LTD added | 287,316 | $100M | 0.3% | 2025-Q2 stale |
| Fenimore Asset Management Inc added | 243,780 | $85M | 0.3% | 2025-Q2 stale |
| Kovitz Investment Group Partners, LLC added | 266,223 | $80M | 0.3% | 2025-Q3 stale |
| Qube Research & Technologies Ltd added | 258,489 | $77M | 0.3% | 2025-Q3 stale |
| Iron Triangle Partners LP trimmed | 105,167 | $40M | 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.