Somnigroup International Inc.
Ownership
Ownership Structure
Who owns Somnigroup International Inc. (SGI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 81.4% of the shares are freely tradable; institutional investors hold 103.1%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 11.43 | 26,326,268 | -5.5 | 06/30/2026 |
| BlackRock Inc | 8.35 | 19,229,644 | -4.5 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.98 | 9,156,443 | +0.9 | 06/30/2026 |
| Select Equity Group LP | 3.86 | 8,892,691 | -4.1 | 06/30/2026 |
| WINDACRE PARTNERSHIP LLC | 3.66 | 8,420,300 | +2.4 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 3.57 | 8,221,101 | -2.6 | 06/30/2026 |
| State Street Corp | 3.16 | 7,280,308 | +5.7 | 06/30/2026 |
| Linonia Partnership LP | 2.88 | 6,624,644 | -24.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Mid-Cap ETF | 3.56 | 8,201,167 | +0.0 | 09/30/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.02 | 6,961,982 | +0.1 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Thompson Scott L | CEO & PRESIDENT | 4,123,634 | 262,263,122 $ | Aug 27, 2026 | direct |
| Glassman Karl G | CEO - Leggett & Platt | 118,179 | 7,516,184 $ | Aug 26, 2026 | both |
| Hagale James Tyson | President - Leggett & Platt | 8,978 | 571,001 $ | Aug 26, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 27, 2026 | Thompson Scott L | CEO & PRESIDENT | Buy | 30,000 | 62.84 | 1,885,314 |
| Aug 26, 2026 | Hagale James Tyson | President - Leggett & Platt | Other | 8,978 | – | – |
| Aug 26, 2026 | Glassman Karl G | CEO - Leggett & Platt | Other | 4,239 | – | – |
| Aug 26, 2026 | Glassman Karl G | CEO - Leggett & Platt | Other | 74,835 | – | – |
| Aug 26, 2026 | Glassman Karl G | CEO - Leggett & Platt | Other | 39,105 | – | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.