Who owns Mueller Water Products (MWA)
Which tracked institutional funds hold MWA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See MWA company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 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
54 tracked funds added or opened MWA while 121 trimmed or exited it between 2026-Q1 and 2026-Q2 — 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
MWA’s largest tracked holder by dollar value, BlackRock, 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 MWA more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in MWA 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 2026-Q1 and 2026-Q2, across 394 tracked filers holding MWA, 210 increased or opened the position and 212 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
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 MWA between the 2026-Q1 and 2026-Q2 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 11
- Jupiter Topco LLC$57M
- ExodusPoint Capital Management, LP$10M
- Grandeur Peak Global Advisors, LLC$5M
- Y-Intercept (Hong Kong) Ltd$3M
- Paralel Advisors LLC$2M
- New Age Alpha Advisors, LLC$1M
Full exits 35
- Amundi$62M
- JANUS HENDERSON GROUP PLC$53M
- BESSEMER GROUP INC$16M
- GW&K Investment Management, LLC$16M
- JANE STREET GROUP, LLC$10M
- Thrivent Financial for Lutherans$10M
Largest adds
- BlackRock, Inc.$202M
- FIDUCIARY MANAGEMENT INC /WI/$38M
- FRANKLIN RESOURCES INC$30M
- Nuveen, LLC$11M
- Qube Research & Technologies Ltd$9M
- UBS Group AG$7M
Largest trims
- BALYASNY ASSET MANAGEMENT L.P.$30M
- AMERIPRISE FINANCIAL INC$17M
- FULLER & THALER ASSET MANAGEMENT, INC.$15M
- MILLENNIUM MANAGEMENT LLC$15M
- TWO SIGMA INVESTMENTS, LP$13M
- VANGUARD PORTFOLIO MANAGEMENT LLC$13M
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. added | 25,686,966 | $663M | 15.5% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 11,572,350 | $299M | 7.0% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 7,033,404 | $182M | 4.2% | 2026-Q2 |
| STATE STREET CORP added | 6,330,173 | $164M | 3.8% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 6,103,655 | $158M | 3.7% | 2026-Q2 |
| FIDUCIARY MANAGEMENT INC /WI/ added | 5,902,018 | $152M | 3.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 5,029,693 | $130M | 3.0% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 4,905,739 | $127M | 3.0% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 4,771,990 | $123M | 2.9% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 3,749,755 | $97M | 2.3% | 2026-Q2 |
| Impax Asset Management Group plc added | 2,967,471 | $77M | 1.8% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 2,701,300 | $70M | 1.6% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 2,662,926 | $69M | 1.6% | 2026-Q2 |
| GAMCO INVESTORS, INC. ET AL trimmed | 2,538,072 | $66M | 1.5% | 2026-Q2 |
| Nuveen, LLC added | 2,348,904 | $61M | 1.4% | 2026-Q2 |
| MORGAN STANLEY added | 2,273,797 | $59M | 1.4% | 2026-Q2 |
| Jupiter Topco LLC new | 2,205,138 | $57M | 1.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,874,750 | $48M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 1,693,743 | $44M | 1.0% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 1,671,887 | $43M | 1.0% | 2026-Q2 |
| Invesco Ltd. trimmed | 1,657,446 | $43M | 1.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 1,631,597 | $42M | 1.0% | 2026-Q2 |
| Allianz Asset Management GmbH | 1,167,258 | $32M | 0.7% | 2026-Q2 |
| UBS Group AG added | 1,241,898 | $32M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 1,126,719 | $29M | 0.7% | 2026-Q2 |
| Legal & General Group Plc added | 1,125,631 | $29M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp added | 1,103,205 | $28M | 0.7% | 2026-Q2 |
| Triodos Investment Management BV added | 1,043,000 | $27M | 0.6% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 1,008,521 | $26M | 0.6% | 2026-Q2 |
| FMR LLC added | 920,144 | $24M | 0.6% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 772,712 | $20M | 0.5% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 781,877 | $20M | 0.5% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 747,596 | $19M | 0.5% | 2026-Q2 |
| Aberdeen Group plc added | 726,576 | $19M | 0.4% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 696,780 | $18M | 0.4% | 2026-Q2 |
| GABELLI FUNDS LLC added | 695,551 | $18M | 0.4% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 604,038 | $16M | 0.4% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 537,615 | $14M | 0.3% | 2026-Q2 |
| Lightrock Netherlands B.V. added | 509,933 | $13M | 0.3% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 490,319 | $13M | 0.3% | 2026-Q2 |
| CREDIT AGRICOLE S A added | 475,443 | $12M | 0.3% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 469,792 | $12M | 0.3% | 2026-Q2 |
| DUFF & PHELPS INVESTMENT MANAGEMENT CO trimmed | 468,312 | $12M | 0.3% | 2026-Q2 |
| Perpetual Ltd added | 459,373 | $12M | 0.3% | 2026-Q2 |
| Assenagon Asset Management S.A. trimmed | 455,817 | $12M | 0.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 445,723 | $12M | 0.3% | 2026-Q2 |
| Swiss Life Asset Management Ltd added | 437,704 | $11M | 0.3% | 2026-Q2 |
| ZACKS INVESTMENT MANAGEMENT added | 408,701 | $11M | 0.2% | 2026-Q2 |
| CRAWFORD INVESTMENT COUNSEL INC trimmed | 403,786 | $10M | 0.2% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 384,201 | $10M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 378,787 | $10M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 377,152 | $10M | 0.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 374,297 | $10M | 0.2% | 2026-Q2 |
| SPEECE THORSON CAPITAL GROUP INC trimmed | 367,282 | $9M | 0.2% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 358,163 | $9M | 0.2% | 2026-Q2 |
| Robeco Schweiz AG | 348,669 | $9M | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 342,803 | $9M | 0.2% | 2026-Q2 |
| NORGES BANK added | 338,100 | $9M | 0.2% | 2026-Q2 |
| PDT Partners, LLC added | 315,786 | $8M | 0.2% | 2026-Q2 |
| Swiss National Bank trimmed | 306,000 | $8M | 0.2% | 2026-Q2 |
| ProShare Advisors LLC added | 282,618 | $7M | 0.2% | 2026-Q2 |
| TEACHER RETIREMENT SYSTEM OF TEXAS trimmed | 274,625 | $7M | 0.2% | 2026-Q2 |
| Zurcher Kantonalbank (Zurich Cantonalbank) trimmed | 265,331 | $7M | 0.2% | 2026-Q2 |
| Palisades Investment Partners, LLC added | 262,991 | $7M | 0.2% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 255,588 | $7M | 0.2% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 247,263 | $6M | 0.1% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 243,584 | $6M | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 238,008 | $6M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 227,110 | $6M | 0.1% | 2026-Q2 |
| BFSG, LLC trimmed | 223,793 | $6M | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 216,812 | $6M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 201,755 | $6M | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 213,711 | $6M | 0.1% | 2026-Q2 |
| Vest Financial, LLC added | 210,199 | $5M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 206,806 | $5M | 0.1% | 2026-Q2 |
| Edgestream Partners, L.P. trimmed | 202,070 | $5M | 0.1% | 2026-Q2 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 201,289 | $5M | 0.1% | 2026-Q2 |
| GLOBEFLEX CAPITAL L P trimmed | 197,096 | $5M | 0.1% | 2026-Q2 |
| Trexquant Investment LP trimmed | 196,056 | $5M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 195,170 | $5M | 0.1% | 2026-Q2 |
| Candriam S.C.A. added | 193,542 | $5M | 0.1% | 2026-Q2 |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. trimmed | 187,987 | $5M | 0.1% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 184,747 | $5M | 0.1% | 2026-Q2 |
| LAZARD ASSET MANAGEMENT LLC added | 179,295 | $5M | 0.1% | 2026-Q2 |
| VANGUARD GROUP INC trimmed | 19,452,025 | $463M | 10.8% | 2025-Q4 stale (2 quarters behind) |
| Amundi trimmed | 2,261,635 | $62M | 1.5% | 2026-Q1 stale (1 quarter behind) |
| JANUS HENDERSON GROUP PLC added | 1,934,813 | $53M | 1.2% | 2026-Q1 stale (1 quarter behind) |
| WESTFIELD CAPITAL MANAGEMENT CO LP added | 2,166,945 | $52M | 1.2% | 2025-Q2 stale (4 quarters behind) |
| JUPITER ASSET MANAGEMENT LTD added | 930,230 | $24M | 0.6% | 2025-Q3 stale (3 quarters behind) |
| Woodline Partners LP added | 774,613 | $19M | 0.4% | 2025-Q2 stale (4 quarters behind) |
| Cubist Systematic Strategies, LLC trimmed | 682,212 | $17M | 0.4% | 2025-Q3 stale (3 quarters behind) |
| BESSEMER GROUP INC added | 588,830 | $16M | 0.4% | 2026-Q1 stale (1 quarter behind) |
| GW&K Investment Management, LLC trimmed | 583,661 | $16M | 0.4% | 2026-Q1 stale (1 quarter behind) |
| JANE STREET GROUP, LLC trimmed | 353,962 | $10M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Thrivent Financial for Lutherans trimmed | 350,733 | $10M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| Driehaus Capital Management LLC trimmed | 312,183 | $8M | 0.2% | 2025-Q2 stale (4 quarters behind) |
| AXIOM INVESTORS LLC /DE trimmed | 272,043 | $7M | 0.2% | 2025-Q3 stale (3 quarters behind) |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 240,128 | $7M | 0.2% | 2026-Q1 stale (1 quarter behind) |
| RENAISSANCE TECHNOLOGIES LLC added | 263,600 | $6M | 0.1% | 2025-Q4 stale (2 quarters behind) |
| Nicholas Investment Partners, LP trimmed | 203,307 | $5M | 0.1% | 2025-Q2 stale (4 quarters behind) |
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.