MSEX Middlesex Water Company
Middlesex Water Company (MSEX) Institutional Ownership
What the institutions did with MSEX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 3.1M | 20.0% |
| T. Rowe Price Investment Management, Inc. | 1.7M | 11.1% |
| NEUBERGER BERMAN GROUP LLC | 1.6M | 10.2% |
| MORGAN STANLEY | 1.1M | 7.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 802.3K | 5.1% |
| STATE STREET CORP | 798.2K | 5.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 513.8K | 3.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 500.6K | 3.2% |
| Legal & General Group Plc | 437.5K | 2.8% |
| DIMENSIONAL FUND ADVISORS LP | 348.4K | 2.2% |
| Invesco Ltd. | 280.2K | 1.8% |
| Ledgewood Wealth Advisors, LLC | 254.0K | 1.6% |
| NORTHERN TRUST CORP | 222.7K | 1.4% |
| TSP Capital Management Group, LLC | 211.0K | 1.3% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 193.7K | 1.2% |
| Bank of New York Mellon Corp | 179.0K | 1.1% |
| Zimmer Partners, LP | 176.9K | 1.1% |
| TWO SIGMA INVESTMENTS, LP | 163.0K | 1.0% |
| MIROVA | 159.1K | 1.0% |
| FIRST MANHATTAN CO. LLC. | 141.6K | 0.9% |
| ProShare Advisors LLC | 131.1K | 0.8% |
| Jupiter Topco LLC | 129.3K | 0.8% |
| VANGUARD FIDUCIARY TRUST CO | 123.1K | 0.8% |
| RENAISSANCE TECHNOLOGIES LLC | 110.8K | 0.7% |
| CRAMER ROSENTHAL MCGLYNN LLC | 108.2K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| BlackRock, Inc. | Increased | 3.0M | 3.1M | +117.9K |
| TWO SIGMA INVESTMENTS, LP | Increased | 65.5K | 163.0K | +97.5K |
| JANE STREET GROUP, LLC | Reduced | 86.7K | 4.6K | -82.2K |
| HRT FINANCIAL LP | Sold Out | 67.5K | 0 | -67.5K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 16.9K | 83.6K | +66.7K |
| DEAN INVESTMENT ASSOCIATES, LLC | New | 0 | 60.0K | +60.0K |
| STATE STREET CORP | Increased | 744.1K | 798.2K | +54.2K |
| NEUBERGER BERMAN GROUP LLC | Increased | 1.5M | 1.6M | +54.2K |
| GOLDMAN SACHS GROUP INC | Reduced | 129.8K | 84.7K | -45.1K |
| Dean Capital Management | New | 0 | 43.5K | +43.5K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 40.8K | 0 | -40.8K |
| NFJ INVESTMENT GROUP, LLC | Sold Out | 38.2K | 0 | -38.2K |
| MIROVA | Reduced | 196.0K | 159.1K | -36.9K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 147.0K | 110.8K | -36.2K |
| Legal & General Group Plc | Increased | 405.8K | 437.5K | +31.7K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 469.9K | 500.6K | +30.6K |
| BANK OF AMERICA CORP /DE/ | Reduced | 69.3K | 40.4K | -28.9K |
| NUANCE INVESTMENTS, LLC | Increased | 57.2K | 85.8K | +28.6K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 488.1K | 513.8K | +25.7K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 828.0K | 802.3K | -25.6K |
| NORTHERN TRUST CORP | Increased | 198.1K | 222.7K | +24.7K |
| Legato Capital Management LLC | New | 0 | 22.7K | +22.7K |
| Squarepoint Ops LLC | Sold Out | 21.6K | 0 | -21.6K |
| Nuveen, LLC | Increased | 39.2K | 57.1K | +17.9K |
| AMERICAN CENTURY COMPANIES INC | New | 0 | 15.7K | +15.7K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.