Somnigroup International Inc
Somnigroup International Inc (SGI) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SGI · as of Mar 31, 2025
Ownership Breakdown
450
Institutional Holders
▲ 450 vs Q4
$13.11B
Total Inst. Value
▲ $13.11B vs Q4
210.34M
Shares Outstanding
freeFloat 89.12%
218.91M
13F Shares Held
▲ 218.91M vs Q4
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
SGI largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC household furniture | 20.53M | 10.53% | 10.53% | $1.23T | May 12, 2025 | ▲ 11.46M |
VANGUARD GROUP INC household furniture | 18.77M | 9.63% | 9.63% | $1.12T | May 9, 2025 | ▲ 2.50M |
BLACKROCK, INC. household furniture | 16.99M | 8.72% | 8.72% | $1.02T | May 2, 2025 | ▲ 1.10M |
SELECT EQUITY GROUP, L.P. household furniture | 15.12M | 7.76% | 7.76% | $905.58B | May 15, 2025 | ▼ 3.65M |
WINDACRE PARTNERSHIP LLC household furniture | 10.40M | 5.34% | 5.34% | $622.96B | May 15, 2025 | NEW |
BROWNING WEST LP household furniture | 10.28M | 5.27% | 5.27% | $615.41B | May 15, 2025 | — held |
LINONIA PARTNERSHIP LP household furniture | 7.59M | 3.89% | 3.89% | $454.55B | May 14, 2025 | ▲ 2.77M |
DARSANA CAPITAL PARTNERS LP household furniture | 7.00M | 3.59% | 3.59% | $419.16B | May 15, 2025 | — held |
STATE STREET CORP household furniture | 6.44M | 3.30% | 3.30% | $385.39B | May 15, 2025 | ▲ 1.15M |
ABRAMS CAPITAL MANAGEMENT, L.P. household furniture | 5.85M | 3.00% | 3.00% | $350.01B | May 9, 2025 | ▲ 2.25M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
29
Increased
+36.02M shares8
New Positions
first time holders11
Decreased
−6.38M shares0
Sold Out
fully exitedNet shares change (top 50)
+29.64M
+36.02M / −6.38M
Net new holders
+26
8 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
SGI insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
8
Buy transactions
2
Sell transactions
4.00
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 |
|---|---|---|---|---|---|---|---|
Rusing Steven H President & CEO Mattress Firm | May 22, 2026 | Sale | 5,357 | $66.79 | $357.8K | 301.0K | Form 4 ↗ |
Rusing Steven H President & CEO Mattress Firm | May 22, 2026 | Sale | 1,300 | $67.48 | $87.7K | 299.7K | Form 4 ↗ |
NEU RICHARD W director | May 13, 2026 | Award | 2,657 | — | — | 173.8K | Form 4 ↗ |
Madden Meredith Siegfried director | May 13, 2026 | Award | 2,657 | — | — | 17.8K | Form 4 ↗ |
Gates Cathy R. director | May 13, 2026 | Award | 2,657 | — | — | 41.2K | Form 4 ↗ |
Dilsaver Evelyn S director | May 13, 2026 | Award | 2,657 | — | — | 156.6K | Form 4 ↗ |
Cook Christopher Thomas director | May 13, 2026 | Award | 2,657 | — | — | 124.1K | Form 4 ↗ |
Sachse Peter R director | May 13, 2026 | Award | 2,657 | — | — | 65.9K | Form 4 ↗ |
Dyer Simon director | May 14, 2026 | Tax Withhold | 702 | $64.49 | $45.3K | 10.9K | Form 4 ↗ |
Dyer Simon director | May 13, 2026 | Award | 2,657 | — | — | 2.7K | 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
Somnigroup International Inc (SGI) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 10.88%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Somnigroup International Inc is FMR LLC, holding approximately 20.53 million shares — equal to 10.53% of outstanding shares — as of March 31, 2025.
A total of 450 institutional investors currently hold SGI stock, with a combined institutional value of approximately $13.11 billion as of the most recent 13F filing period.
Frequently asked questions
SGI ownershipSomnigroup International Inc (SGI) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is FMR LLC with a 10.53% stake. Company insiders hold 10.88%. Data sourced from SEC Form 13F as of March 31, 2025.