Latham Group, Inc.: which funds bought and sold

Institutions that bought and sold Latham Group shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 74 institutions that filed 13F reports for both quarters added to or opened positions in Latham Group, and 65 cut or closed them. Together they added a net 2.5M shares, +2.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 1.3M shares (+6.3%); index fund managers were net buyers of 727K shares (+7.8%). 20 opened a new position and 25 sold out entirely.

Bought, Q2 2026 74 institutions, 20 of them new holders Sold, Q2 2026 65 institutions, 25 of them sold out

Net change, all compared +2.5M shares (+2.4%)

Net change, active managers +1.3M shares (+6.3%), 12 bought, 18 sold

Buyers versus sellers

institutions compared, 158

74 bought 19 65 sold

Active managers and hedge funds 12 bought · 18 sold · +1.3M

Index fund managers 7 bought · 2 sold · +727K

Other institutions 55 bought · 45 sold · +478K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Wellington Management Group LLP Active manager	+2.2M +24.0%	11.4M	$73.5M
Polar Asset Management Partners Inc.	+559K New position	559K	$3.6M
Ack Asset Management LLC	+500K +9.7%	5.7M	$36.6M
Citadel Advisors LLC Hedge fund	+475K +57.4%	1.3M	$8.4M
Dimensional Fund Advisors LP	+422K +12.5%	3.8M	$24.5M
Blackrock, Inc. Index funds	+368K +11.3%	3.6M	$23.5M
Kennondale Capital Management LLC	+322K New position	322K	$2.1M
Squarepoint Ops LLC Hedge fund	+234K +68.7%	575K	$3.7M
Rice Hall James & Associates, LLC	+225K +43.1%	748K	$4.8M
Geode Capital Management, LLC Index funds	+175K +15.1%	1.3M	$8.7M
Roubaix Capital, LLC	+152K +22.9%	813K	$5.3M
Victory Capital Management Inc Active manager	+141K +38.6%	507K	$3.3M
Bloombergsen Inc.	+137K +70.9%	329K	$2.1M
Formula Growth Ltd	+120K +9.6%	1.4M	$8.9M
State Street Corp Index funds	+118K +12.4%	1.1M	$6.9M
Ayal Capital Advisors Ltd	+112K New position	112K	$725,856
UBS Group AG	+81K +55.4%	227K	$1.5M
Fox Run Management, L.L.C.	+58K New position	58K	$377,136
Charles Schwab Investment Management Inc Index funds	+57K +15.7%	419K	$2.7M
Vanguard Portfolio Management LLC Index funds	+55K +11.7%	529K	$3.4M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Wellington Management Group LLP Active manager	+2.2M +24.0%	11.4M	$73.5M
Citadel Advisors LLC Hedge fund	+475K +57.4%	1.3M	$8.4M
Squarepoint Ops LLC Hedge fund	+234K +68.7%	575K	$3.7M
Victory Capital Management Inc Active manager	+141K +38.6%	507K	$3.3M
Quantbot Technologies LP Hedge fund	+55K New position	55K	$355,229
Centerbook Partners LP Hedge fund	+46K +5.5%	879K	$5.7M
Schonfeld Strategic Advisors LLC Hedge fund	+17K +131.3%	31K	$198,724
Alliancebernstein L.P. Active manager	+16K +30.6%	70K	$376,244
Centiva Capital, LP Hedge fund	+12K New position	12K	$77,983
Winton Group Ltd Hedge fund	+11K New position	11K	$71,817

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Emerald Advisers, LLC	−923K −91.7%	84K	$540,776
Arrowstreet Capital, Limited Partnership Hedge fund	−431K Sold out	0	—
Voss Capital, LP Hedge fund	−373K Sold out	0	—
Ewing Morris & Co. Investment Partners Ltd.	−368K −63.5%	211K	$1.4M
FMR LLC Active manager	−329K −9.0%	3.3M	$21.6M
Emerald Mutual Fund Advisers Trust	−291K −45.3%	352K	$2.3M
Round Rock Advisors LLC	−165K Sold out	0	—
Man Group PLC Hedge fund	−145K Sold out	0	—
D. E. Shaw & Co., Inc. Hedge fund	−144K −40.4%	213K	$1.4M
Jacobs Levy Equity Management, Inc Active manager	−141K −32.2%	298K	$1.9M
Morgan Stanley	−136K −68.4%	63K	$406,654
Varcov Co.	−96K Sold out	0	—
Jpmorgan Chase & Co	−96K −81.2%	22K	$141,635
Magnetar Financial LLC Hedge fund	−78K Sold out	0	—
Jane Street Group, LLC	−76K Sold out	0	—
Numerai Gp LLC	−60K Sold out	0	—
Vanguard Capital Management LLC Index funds	−59K −2.6%	2.2M	$14.5M
Mirabella Financial Services LLP	−51K Sold out	0	—
Wasatch Advisors LP Active manager	−47K −1.8%	2.5M	$16.3M
Millennium Management LLC Hedge fund	−45K Sold out	0	—

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Arrowstreet Capital, Limited Partnership Hedge fund	−431K Sold out	0	—
Voss Capital, LP Hedge fund	−373K Sold out	0	—
FMR LLC Active manager	−329K −9.0%	3.3M	$21.6M
Man Group PLC Hedge fund	−145K Sold out	0	—
D. E. Shaw & Co., Inc. Hedge fund	−144K −40.4%	213K	$1.4M
Jacobs Levy Equity Management, Inc Active manager	−141K −32.2%	298K	$1.9M
Magnetar Financial LLC Hedge fund	−78K Sold out	0	—
Wasatch Advisors LP Active manager	−47K −1.8%	2.5M	$16.3M
Millennium Management LLC Hedge fund	−45K Sold out	0	—
Renaissance Technologies LLC Hedge fund	−45K −9.0%	453K	$2.9M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Polar Asset Management Partners Inc.	559K	$3.6M
Kennondale Capital Management LLC	322K	$2.1M
Ayal Capital Advisors Ltd	112K	$725,856
Fox Run Management, L.L.C.	58K	$377,136
Quantbot Technologies LPHedge fund	55K	$355,229
Cornerstone Investment Partners, LLC	44K	$286,194
Plancorp, LLC	22K	$129,139
Mqs Management LLC	19K	$123,687
Brookwood Investment Group LLC	16K	$103,520
Centiva Capital, LPHedge fund	12K	$77,983

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Arrowstreet Capital, Limited PartnershipHedge fund	431K	$2.3M
Voss Capital, LPHedge fund	373K	$2M
Round Rock Advisors LLC	165K	$883,676
Man Group PLCHedge fund	145K	$777,549
Varcov Co.	96K	$515,456
Magnetar Financial LLCHedge fund	78K	$416,255
Jane Street Group, LLC	76K	$407,400
Numerai Gp LLC	60K	$322,624
Mirabella Financial Services LLP	51K	$273,193
Millennium Management LLCHedge fund	45K	$242,429

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 135
Ten largest holders: 82.5%
Index fund managers: 9.2%
Active managers and hedge funds: 20.4%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	12	18	3	9	+1.3M	+6.3%
Index fund managers	7	2	0	0	+727K	+7.8%
Other institutions	55	45	17	16	+478K	+0.6%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Latham Group.

Only managers that filed a holdings report for both quarters are compared (158 here). 5 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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