SWIM

Latham Group Inc Cross-source read
MaterialsCUSIP 51819L107

Among active 13F managers last quarter, 7 opened and 24 added, while 20 reduced; the largest holder to move was ACK Asset Management LLC (+9.7%). Over the last 180 days, 2 insiders bought and none sold, a net +$316K in open-market trades.

Tracked 13F holders
128
43 in Q2 2026 filings
13F value (tracked)
$593.6M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
31 adding · 20 trimming
Insiders · Form 4 open-market, 180d
2 buying · 0 selling · +$316K
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Who owns SWIM?

128 tracked 13F filers · ranked by shares held

128 tracked 13F filers disclose a position in SWIM as of the latest SEC 13F filings, a combined $593.6M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Pamplona Capital Management, LLC51.8M
$335.4M
Held
Q2 2026
2ACK Asset Management LLC5.7M
$36.6M
+9.7%
Added · +500K sh
Q2 2026
3Keybank National Association4.1M
$22.0M
Held
Q1 2026
4FMR LLC3.7M
$19.7M
−11%
Reduced · −443K sh
Q1 2026
5Dimensional Fund Advisors LP3.4M
$18.1M
+16%
Added · +470K sh
Q1 2026
6BlackRock, Inc.3.3M
$17.6M
+1.5%
Added · +48K sh
Q1 2026
7Wasatch Advisors LP2.5M
$16.3M
−1.8%
Reduced · −47K sh
Q2 2026
8Vanguard Capital Management LLC2.3M
$12.4M
New filer
Inherited book · not a new buyer
Q1 2026
9Formula Growth Ltd1.4M
$8.9M
+9.6%
Added · +120K sh
Q2 2026
10Geode Capital Management, LLC1.3M
$8.7M
+15%
Added · +175K sh
Q2 2026
11Citadel Advisors LLC1.3M
$8.4M
+57%
Added · +475K sh
Q2 2026
12Onex Canada Asset Management Inc.1.2M
$7.6M
+4.2%
Added · +48K sh
Q2 2026
13State Street Corp1.1M
$6.9M
+12%
Added · +118K sh
Q2 2026
14CAS Investment Partners, LLC923K
$6.0M
−0.6%
Reduced · −6K sh
Q2 2026
15Silvercrest Asset Management Group LLC915K
$4.9M
+13%
Added · +105K sh
Q1 2026
16CenterBook Partners LP879K
$5.7M
+5.5%
Added · +46K sh
Q2 2026
17Roubaix Capital, LLC813K
$5.3M
+23%
Added · +152K sh
Q2 2026
18Rice Hall James & Associates, LLC748K
$4.8M
+43%
Added · +225K sh
Q2 2026
19Goldman Sachs Group Inc591K
$3.2M
+23%
Added · +111K sh
Q1 2026
20Renaissance Technologies LLC498K
$2.7M
+9.0%
Added · +41K sh
Q1 2026
21Vanguard Portfolio Management LLC474K
$2.5M
New filer
Inherited book · not a new buyer
Q1 2026
22Jacobs Levy Equity Management, Inc439K
$2.4M
18×
Added · +415K sh
Q1 2026
23Arrowstreet Capital, Limited Partnership431K
$2.3M
+293%
Added · +322K sh
Q1 2026
24Northern Trust Corp405K
$2.2M
+10%
Added · +37K sh
Q1 2026
25Victory Capital Management Inc366K
$2.0M
−7.0%
Reduced · −27K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is SWIM being bought or sold by institutions?

Last quarter, 7 funds opened a new position in SWIM and 24 added to an existing one, while 20 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
7
funds took a first position
Added
24
added to an existing position
Reduced
20
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own SWIM also own

CompanyCo-held byTheir position there
Microsoft CorpMSFT64 funds$146.5B
Amazon.com IncAMZN62 funds$103.4B
Meta Platforms Inc-Class AMETA62 funds$59.1B
JPMorgan Chase & CoJPM62 funds$29.2B
Nvidia CorpNVDA61 funds$212.8B
Apple IncAAPL61 funds$157.5B
Eli Lilly & CoLLY61 funds$41.9B
Micron Technology IncMU61 funds$19.7B
Broadcom IncAVGO60 funds$87.3B
Alphabet Inc-CL AGOOGL60 funds$76.1B
Bank Of America CorpBAC60 funds$15.4B
Visa Inc-Class A SharesV59 funds$32.2B

Ranked by how many of SWIM's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in SWIM.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$316K
2 insiders
Net · 180d
$316K
2 open-market transactions
DateInsiderRoleActionSharesValue
May 20, 2026Gloe Oliver C.CHIEF FINANCIAL OFFICERBuy (P)15K$74K
May 19, 2026Cline James EDirectorBuy (P)50K$242K
Aug 22, 2025Dellaquila Frank JDirectorBuy (P)5K$41K
May 15, 2025Gloe Oliver C.CHIEF FINANCIAL OFFICERBuy (P)14K$82K
May 12, 2025Cline James EDirectorSell (S)4K$28K
May 9, 2025Cline James EDirectorSell (S)46K$271K
Mar 14, 2025Wynnchurch Capital Partners IV, L.p.10% OwnerSell (S)3.5M$22.9M
Mar 14, 2025Wc Partners Executive IV, L.p.10% OwnerSell (S)105K$688K
Dec 11, 2024Rajeski Scott MichaelCHIEF EXECUTIVE OFFICER, DirectorSell (S)
3 lots, same day
22K$185K
Nov 11, 2024Gloe Oliver C.CHIEF FINANCIAL OFFICERBuy (P)9K$52K
Nov 11, 2024Bahl SanjeevCHIEF OPERATING OFFICERSell (S)12K$69K
Oct 31, 2024Gloe Oliver C.CHIEF FINANCIAL OFFICERSell (S)10K$66K

One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.

Do institutions, insiders and Congress agree?

Confluence: insiders and funds buying

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
4135
Insiders
Form 4 open-market
20+$316K
US House
STOCK Act trades
00$0
Sector rotation
SWIM is in Materials, which smart money is rotating OUT OF
$2.8B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

43 tracked filers in Q2 2026 filingsstill filing
064128Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $451.2M
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Recent filings

15 most recent

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Connected entities for SWIM

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Ask your agent what changed in SWIM

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/SWIM/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for SWIM.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + the live filing stream, joined for SWIM. Filings are public domain, sourced to SEC EDGAR.