SWIM Latham Group, Inc
Latham Group, Inc (SWIM) Institutional Ownership
What the institutions did with SWIM 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.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Pamplona Capital Management, LLC | 51.8M | 47.6% |
| WELLINGTON MANAGEMENT GROUP LLP | 11.4M | 10.4% |
| ACK Asset Management LLC | 5.7M | 5.2% |
| KEYBANK NATIONAL ASSOCIATION/OH | 4.1M | 3.8% |
| DIMENSIONAL FUND ADVISORS LP | 3.8M | 3.5% |
| BlackRock, Inc. | 3.6M | 3.3% |
| FMR LLC | 3.3M | 3.1% |
| WASATCH ADVISORS LP | 2.5M | 2.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.2M | 2.1% |
| FORMULA GROWTH LTD | 1.4M | 1.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.3M | 1.2% |
| CITADEL ADVISORS LLC | 1.3M | 1.2% |
| Onex Canada Asset Management Inc. | 1.2M | 1.1% |
| STATE STREET CORP | 1.1M | 1.0% |
| CAS Investment Partners, LLC | 922.6K | 0.8% |
| CenterBook Partners LP | 878.7K | 0.8% |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 872.5K | 0.8% |
| Roubaix Capital, LLC | 812.6K | 0.7% |
| RICE HALL JAMES & ASSOCIATES, LLC | 747.8K | 0.7% |
| GOLDMAN SACHS GROUP INC | 595.3K | 0.5% |
| Squarepoint Ops LLC | 574.8K | 0.5% |
| Polar Asset Management Partners Inc. | 558.7K | 0.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 529.2K | 0.5% |
| VICTORY CAPITAL MANAGEMENT INC | 506.8K | 0.5% |
| RENAISSANCE TECHNOLOGIES LLC | 452.9K | 0.4% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | Increased | 9.2M | 11.4M | +2.2M |
| EMERALD ADVISERS, LLC | Reduced | 1.0M | 83.6K | -923.2K |
| Polar Asset Management Partners Inc. | New | 0 | 558.7K | +558.7K |
| ACK Asset Management LLC | Increased | 5.2M | 5.7M | +500.0K |
| CITADEL ADVISORS LLC | Increased | 828.5K | 1.3M | +475.2K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold Out | 431.2K | 0 | -431.2K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 3.4M | 3.8M | +421.7K |
| Voss Capital, LP | Sold Out | 373.0K | 0 | -373.0K |
| Ewing Morris & Co. Investment Partners Ltd. | Reduced | 579.7K | 211.5K | -368.2K |
| BlackRock, Inc. | Increased | 3.3M | 3.6M | +368.2K |
| FMR LLC | Reduced | 3.7M | 3.3M | -329.5K |
| Kennondale Capital Management LLC | New | 0 | 322.2K | +322.2K |
| EMERALD MUTUAL FUND ADVISERS TRUST | Reduced | 642.6K | 351.7K | -290.9K |
| Squarepoint Ops LLC | Increased | 340.7K | 574.8K | +234.1K |
| RICE HALL JAMES & ASSOCIATES, LLC | Increased | 522.7K | 747.8K | +225.2K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.2M | 1.3M | +175.2K |
| Round Rock Advisors LLC | Sold Out | 164.6K | 0 | -164.6K |
| Roubaix Capital, LLC | Increased | 661.0K | 812.6K | +151.6K |
| Man Group plc | Sold Out | 144.8K | 0 | -144.8K |
| D. E. Shaw & Co., Inc. | Reduced | 356.8K | 212.6K | -144.2K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | 439.1K | 297.7K | -141.4K |
| VICTORY CAPITAL MANAGEMENT INC | Increased | 365.8K | 506.8K | +141.0K |
| BloombergSen Inc. | Increased | 192.6K | 329.2K | +136.6K |
| MORGAN STANLEY | Reduced | 199.1K | 62.9K | -136.2K |
| FORMULA GROWTH LTD | Increased | 1.3M | 1.4M | +120.0K |
| STATE STREET CORP | Increased | 948.2K | 1.1M | +118.0K |
| AYAL Capital Advisors Ltd | New | 0 | 112.2K | +112.2K |
| VARCOV Co. | Sold Out | 96.0K | 0 | -96.0K |
| JPMORGAN CHASE & CO | Reduced | 118.1K | 22.2K | -96.0K |
| UBS Group AG | Increased | 146.1K | 227.0K | +80.9K |
| Magnetar Financial LLC | Sold Out | 77.5K | 0 | -77.5K |
| JANE STREET GROUP, LLC | Sold Out | 75.9K | 0 | -75.9K |
| Numerai GP LLC | Sold Out | 60.1K | 0 | -60.1K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 2.3M | 2.2M | -58.8K |
| FOX RUN MANAGEMENT, L.L.C. | New | 0 | 58.3K | +58.3K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Increased | 362.4K | 419.1K | +56.7K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 473.8K | 529.2K | +55.4K |
| Quantbot Technologies LP | New | 0 | 54.9K | +54.9K |
| MIRABELLA FINANCIAL SERVICES LLP | Sold Out | 50.9K | 0 | -50.9K |
| Onex Canada Asset Management Inc. | Increased | 1.1M | 1.2M | +47.5K |
| WASATCH ADVISORS LP | Reduced | 2.6M | 2.5M | -47.1K |
| CenterBook Partners LP | Increased | 832.7K | 878.7K | +45.9K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 45.1K | 0 | -45.1K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 497.5K | 452.9K | -44.6K |
| Cornerstone Investment Partners, LLC | New | 0 | 44.2K | +44.2K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Reduced | 915.1K | 872.5K | -42.6K |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | Increased | 44.3K | 83.8K | +39.5K |
| CITIGROUP INC | Reduced | 69.3K | 29.8K | -39.4K |
| Nuveen, LLC | Increased | 84.8K | 123.6K | +38.8K |
| Walleye Capital LLC | Reduced | 59.5K | 26.8K | -32.7K |
| NORTHERN TRUST CORP | Increased | 404.6K | 436.1K | +31.5K |
| Bank of New York Mellon Corp | Increased | 113.2K | 144.7K | +31.5K |
| AXQ CAPITAL, LP | Sold Out | 29.6K | 0 | -29.6K |
| VANGUARD FIDUCIARY TRUST CO | Reduced | 342.7K | 316.6K | -26.0K |
| WELLS FARGO & COMPANY/MN | Increased | 18.2K | 43.4K | +25.2K |
| COMMONWEALTH EQUITY SERVICES, LLC | Reduced | 116.9K | 91.9K | -25.0K |
| BANK OF AMERICA CORP /DE/ | Reduced | 60.3K | 35.3K | -25.0K |
| Invesco Ltd. | Reduced | 120.6K | 97.7K | -22.9K |
| Plancorp, LLC | New | 0 | 21.8K | +21.8K |
| ELCO Management Co., LLC | Increased | 58.1K | 78.3K | +20.2K |
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.