Who owns Pentair plc (PNR)
Which tracked institutional funds hold PNR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See PNR company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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
The tracked-fund tape on PNR is one-sided between 2025-Q4 and 2026-Q1: 82 added or opened and 298 trimmed or exited — on balance reducing.
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
PNR’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 PNR more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in PNR 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 736 tracked filers holding PNR, 310 increased or opened the position and 423 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 PNR 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 39
- VANGUARD CAPITAL MANAGEMENT LLC$925M
- VANGUARD PORTFOLIO MANAGEMENT LLC$664M
- VANGUARD FIDUCIARY TRUST CO$80M
- D. E. Shaw & Co., Inc.$52M
- Schonfeld Strategic Advisors LLC$35M
- Eurizon Capital SGR S.p.A.$34M
Full exits 38
- VANGUARD GROUP INC$2.0B
- 140 Summer Partners LP$63M
- Clark Capital Management Group, Inc.$30M
- CIBC Private Wealth Group LLC$18M
- Northwest & Ethical Investments L.P.$15M
- Janney Montgomery Scott LLC$13M
Largest adds
- PRICE T ROWE ASSOCIATES INC /MD/$206M
- HSBC HOLDINGS PLC$102M
- BALYASNY ASSET MANAGEMENT L.P.$42M
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$36M
- Woodline Partners LP$33M
- CITADEL ADVISORS LLC$29M
Largest trims
- BlackRock, Inc.$559M
- Impax Asset Management Group plc$195M
- STATE STREET CORP$135M
- BESSEMER GROUP INC$127M
- PANAGORA ASSET MANAGEMENT INC$109M
- FMR LLC$107M
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 | 11,808,848 | $1.0B | 7.3% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 11,250,774 | $980M | 6.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 10,620,323 | $925M | 6.6% | 2026-Q1 |
| STATE STREET CORP added | 8,756,121 | $763M | 5.4% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 7,620,191 | $664M | 4.7% | 2026-Q1 |
| FMR LLC trimmed | 5,978,683 | $521M | 3.7% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 4,420,085 | $384M | 2.7% | 2026-Q1 |
| Amundi added | 4,237,659 | $369M | 2.6% | 2026-Q1 |
| Pictet Asset Management Holding SA trimmed | 3,906,622 | $340M | 2.4% | 2026-Q1 |
| Invesco Ltd. added | 3,891,861 | $339M | 2.4% | 2026-Q1 |
| NORDEA INVESTMENT MANAGEMENT AB added | 3,924,161 | $336M | 2.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 3,071,770 | $268M | 1.9% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 2,731,239 | $238M | 1.7% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 2,692,235 | $235M | 1.7% | 2026-Q1 |
| MORGAN STANLEY trimmed | 2,273,095 | $198M | 1.4% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,245,987 | $196M | 1.4% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 2,042,735 | $178M | 1.3% | 2026-Q1 |
| Impax Asset Management Group plc trimmed | 1,715,163 | $149M | 1.1% | 2026-Q1 |
| ProShare Advisors LLC added | 1,581,089 | $138M | 1.0% | 2026-Q1 |
| DEUTSCHE BANK AG\ trimmed | 1,535,673 | $134M | 0.9% | 2026-Q1 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC trimmed | 1,514,739 | $132M | 0.9% | 2026-Q1 |
| DekaBank Deutsche Girozentrale | 1,489,715 | $130M | 0.9% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,482,111 | $129M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,377,196 | $120M | 0.9% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 1,304,807 | $114M | 0.8% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 1,270,578 | $111M | 0.8% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 1,261,928 | $110M | 0.8% | 2026-Q1 |
| UBS Group AG trimmed | 1,226,389 | $107M | 0.8% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 1,215,064 | $106M | 0.8% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 1,010,810 | $105M | 0.7% | 2026-Q1 |
| Legal & General Group Plc trimmed | 1,118,437 | $97M | 0.7% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT CO LTD added | 1,083,947 | $94M | 0.7% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 920,674 | $80M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 917,477 | $80M | 0.6% | 2026-Q1 |
| Gates Capital Management, Inc. | 902,606 | $79M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 904,723 | $76M | 0.5% | 2026-Q1 |
| Woodline Partners LP added | 774,780 | $67M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 612,594 | $53M | 0.4% | 2026-Q1 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 603,472 | $53M | 0.4% | 2026-Q1 |
| Allianz Asset Management GmbH trimmed | 600,253 | $52M | 0.4% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 596,786 | $52M | 0.4% | 2026-Q1 |
| Nuveen, LLC added | 567,211 | $49M | 0.4% | 2026-Q1 |
| Clean Energy Transition LLP added | 565,871 | $49M | 0.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 555,810 | $48M | 0.3% | 2026-Q1 |
| PARNASSUS INVESTMENTS, LLC added | 547,303 | $48M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 540,205 | $46M | 0.3% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 520,152 | $45M | 0.3% | 2026-Q1 |
| California Public Employees Retirement System added | 503,272 | $44M | 0.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 483,406 | $42M | 0.3% | 2026-Q1 |
| Vest Financial, LLC added | 483,288 | $42M | 0.3% | 2026-Q1 |
| Swiss National Bank added | 480,287 | $42M | 0.3% | 2026-Q1 |
| BARCLAYS PLC trimmed | 460,840 | $40M | 0.3% | 2026-Q1 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO added | 455,496 | $40M | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 440,911 | $38M | 0.3% | 2026-Q1 |
| Man Group plc trimmed | 427,693 | $37M | 0.3% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 406,601 | $35M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 407,233 | $35M | 0.2% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC added | 399,311 | $35M | 0.2% | 2026-Q1 |
| Eurizon Capital SGR S.p.A. new | 396,530 | $34M | 0.2% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 386,793 | $34M | 0.2% | 2026-Q1 |
| KBC Group NV trimmed | 385,640 | $34M | 0.2% | 2026-Q1 |
| Treasurer of the State of North Carolina added | 359,461 | $31M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 357,523 | $31M | 0.2% | 2026-Q1 |
| DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC trimmed | 352,494 | $31M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 333,891 | $29M | 0.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 329,664 | $29M | 0.2% | 2026-Q1 |
| NORGES BANK trimmed | 309,855 | $27M | 0.2% | 2026-Q1 |
| Assenagon Asset Management S.A. trimmed | 304,840 | $27M | 0.2% | 2026-Q1 |
| Robeco Schweiz AG trimmed | 293,136 | $26M | 0.2% | 2026-Q1 |
| AVIVA PLC added | 291,704 | $25M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 291,609 | $25M | 0.2% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 287,555 | $25M | 0.2% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 281,726 | $25M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 263,424 | $23M | 0.2% | 2026-Q1 |
| EVENTIDE ASSET MANAGEMENT, LLC trimmed | 259,595 | $23M | 0.2% | 2026-Q1 |
| Vontobel Holding Ltd. added | 256,972 | $22M | 0.2% | 2026-Q1 |
| STOREBRAND ASSET MANAGEMENT AS trimmed | 256,621 | $22M | 0.2% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. trimmed | 251,956 | $22M | 0.2% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) trimmed | 246,166 | $21M | 0.2% | 2026-Q1 |
| Caisse de depot et placement du Quebec trimmed | 242,189 | $21M | 0.1% | 2026-Q1 |
| SG Americas Securities, LLC trimmed | 241,649 | $21M | 0.1% | 2026-Q1 |
| Zuckerman Investment Group, LLC added | 236,413 | $21M | 0.1% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 232,644 | $20M | 0.1% | 2026-Q1 |
| SCOPUS ASSET MANAGEMENT, L.P. added | 231,118 | $20M | 0.1% | 2026-Q1 |
| Aberdeen Group plc trimmed | 229,592 | $20M | 0.1% | 2026-Q1 |
| MIROVA added | 228,918 | $20M | 0.1% | 2026-Q1 |
| BROWN ADVISORY INC added | 225,851 | $20M | 0.1% | 2026-Q1 |
| Swedbank AB trimmed | 224,146 | $20M | 0.1% | 2026-Q1 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO trimmed | 219,687 | $19M | 0.1% | 2026-Q1 |
| FIL Ltd trimmed | 214,980 | $19M | 0.1% | 2026-Q1 |
| CITIGROUP INC added | 214,518 | $19M | 0.1% | 2026-Q1 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 213,673 | $19M | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 208,651 | $18M | 0.1% | 2026-Q1 |
| CIBC Bancorp USA Inc. added | 206,378 | $18M | 0.1% | 2026-Q1 |
| Zimmer Partners, LP added | 200,000 | $17M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 19,642,737 | $2.0B | 14.5% | 2025-Q4 stale |
| 140 Summer Partners LP added | 607,112 | $63M | 0.4% | 2025-Q4 stale |
| Clark Capital Management Group, Inc. added | 287,504 | $30M | 0.2% | 2025-Q4 stale |
| Point72 Asset Management, L.P. trimmed | 215,648 | $22M | 0.2% | 2025-Q2 stale |
| CIBC Private Wealth Group LLC trimmed | 172,288 | $18M | 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.