Latham Group, Inc.
Latham Group, Inc. (SWIM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SWIM · as of Sep 30, 2025
Ownership Breakdown
138
Institutional Holders
▲ 12 vs Q2
$863.47M
Total Inst. Value
▲ $128.78M vs Q2
117.41M
Shares Outstanding
freeFloat 42.48%
113.46M
13F Shares Held
▼ 1.69M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SWIM largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
PAMPLONA CAPITAL MANAGEMENT, LLC plastics products, nec | 51.85M | 44.52% | 44.52% | $394.55B | Nov 14, 2025 | — held |
WYNNCHURCH CAPITAL PARTNERS IV, L.P. plastics products, nec | 5.88M | 5.05% | 5.05% | $44.77B | Nov 12, 2025 | ▼ 5.50M |
CITADEL ADVISORS LLC plastics products, nec | 4.62M | 3.97% | 3.97% | $35.16B | Nov 14, 2025 | ▲ 3.11M |
VOSS CAPITAL, LLC plastics products, nec | 4.35M | 3.73% | 3.73% | $33.10B | Nov 20, 2025 | ▼ 1.95M |
FMR LLC plastics products, nec | 4.22M | 3.62% | 3.62% | $32.08B | Nov 13, 2025 | ▼ 213.5K |
KEYBANK NATIONAL ASSOCIATION/OH plastics products, nec | 4.09M | 3.51% | 3.51% | $31.15B | Nov 4, 2025 | — held |
VANGUARD GROUP INC plastics products, nec | 3.26M | 2.80% | 2.80% | $24.79B | Nov 7, 2025 | ▲ 873.9K |
BLACKROCK, INC. plastics products, nec | 3.19M | 2.74% | 2.74% | $24.29B | Nov 12, 2025 | ▲ 77.4K |
WASATCH ADVISORS LP plastics products, nec | 3.07M | 2.63% | 2.63% | $23.33B | Nov 14, 2025 | ▼ 50.8K |
DIMENSIONAL FUND ADVISORS LP plastics products, nec | 2.74M | 2.35% | 2.35% | $20.86B | Nov 12, 2025 | ▲ 118.5K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
24
Increased
+8.47M shares5
New Positions
first time holders17
Decreased
−10.02M shares0
Sold Out
fully exitedNet shares change (top 50)
1.55M
+8.47M / −10.02M
Net new holders
+12
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SWIM insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
1
Sell transactions
8.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Gloe Oliver C. CHIEF FINANCIAL OFFICER | May 20, 2026 | Purchase | 15,050 | $4.90 | $73.7K | 540.8K | Form 4 ↗ |
Maczko Nikki Vaughan Chief Human Resources Officer | May 20, 2026 | Tax Withhold | 3,356 | $4.89 | $16.4K | 118.2K | Form 4 ↗ |
Cline James E director | May 19, 2026 | Purchase | 50,000 | $4.84 | $242.0K | 100.0K | Form 4 ↗ |
DELLAQUILA FRANK J director | May 1, 2026 | Award | 17,677 | — | — | 39.5K | Form 4 ↗ |
Laven Mark Phillip director | May 1, 2026 | Award | 17,677 | — | — | 1.04M | Form 4 ↗ |
Jackson DeLu director | May 1, 2026 | Award | 17,677 | — | — | 102.4K | Form 4 ↗ |
Morno-Wade Suzan director | May 1, 2026 | Award | 17,677 | — | — | 130.7K | Form 4 ↗ |
Jackson Jeffrey T director | May 1, 2026 | Award | 17,677 | — | — | 17.7K | Form 4 ↗ |
Cline James E director | May 1, 2026 | Award | 22,727 | — | — | 212.0K | Form 4 ↗ |
Bahl Sanjeev CHIEF OPERATING OFFICER | Mar 15, 2026 | Tax Withhold | 9,970 | $6.02 | $60.0K | 428.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Latham Group, Inc. (SWIM) is primarily owned by institutional investors, who hold approximately 96.6% of total shares outstanding. Company insiders own approximately 57.52%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Latham Group, Inc. is PAMPLONA CAPITAL MANAGEMENT, LLC, holding approximately 51.85 million shares — equal to 44.52% of outstanding shares — as of September 30, 2025.
A total of 138 institutional investors currently hold SWIM stock, with a combined institutional value of approximately $863,469,636 as of the most recent 13F filing period.
Frequently asked questions
SWIM ownershipLatham Group, Inc. (SWIM) is primarily owned by institutional investors, who hold approximately 96.6% of shares. The largest shareholder is PAMPLONA CAPITAL MANAGEMENT, LLC with a 44.52% stake. Company insiders hold 57.52%. Data sourced from SEC Form 13F as of September 30, 2025.