Somnigroup International Inc. (SGI) insider trading
Recent insider transactions reported to the SEC on Form 4 — directors and officers buying or selling their own company’s stock. Sourced directly from public SEC filings, latest filed Aug 28, 2026.
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- Filings shown
- 8
- Open-market buys
- 1
- Open-market sells
- 2
- Buys, 10b5-1 box not checked
- 1 of 1
Counts cover the 8 most recent Form 4 filings Tradune holds for SGI (filed May 15 – Aug 28, 2026); the score below covers only the trailing 90 days (1 buy, 0 sells). No completed check of SGI's Form 4 list on SEC EDGAR is on record yet; the latest SGI filing Tradune holds was filed Aug 28, 2026. This is not guaranteed to be the complete record — see SGI's full Form 4 filing history on SEC EDGAR.
Open-market activity, last 90 days
Purchases (Form 4 code P) and sales (code S) on the 3 filings Tradune holds for SGI filed Aug 27 – Aug 28, 2026. Grants, exercises, tax withholding and the other Form 4 transaction codes are left out.
| Insider | Buys | Sells | Shares bought | Shares sold | Value |
|---|---|---|---|---|---|
| Scott L. ThompsonCEO & PRESIDENT | 1 | 0 | 30,000 | — | +$1,885,314 |
Value = shares × the price reported on each Form 4 (+ purchases, − sales); every open-market line in this window disclosed a price.
Summarises ~90 days of public SEC Form 4 activity — more distinct buyers, officer involvement and net buying score higher. A description of filing activity, not a rating or buy signal. How this score is computed →
How to read this: an open-market purchase (Form 4 code P) is a buy at the market price with the insider’s own money, as opposed to a grant, award or option exercise; an open-market sale is code S. When two or more distinct insiders report open-market purchases in the same 90-day window, this site labels that a cluster — a definition, not a forecast; see insider cluster buying. “Held after” is Form 4 Table I column 5; “Change” = shares ÷ holdings before the trade (held after − shares for an acquisition, held after + shares for a disposition).
Insider Buying at SGI
Insiders reported 1 open-market purchase of SGI between May 15, 2026 and Aug 28, 2026, across 1 distinct buyer. The most recent purchase was reported by Scott L. Thompson (CEO & PRESIDENT) on Aug 27, 2026. Grants, option exercises, and tax-withholding transactions are excluded from these counts.
Recent Form 4 filings
Source: SEC EDGAR Form 4 · transaction codes explained
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award Restricted Stock Units | 4,992 | — | — | — | Aug 26, 2026 |
| Grant / award Cash Settled Restricted Stock Units | 4,992 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 1,109 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 10,825 | — | — | — | Aug 26, 2026 |
| Grant / award Cash Settled Restricted Stock Units | 10,825 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 4,811 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 9,222 | — | — | — | Aug 26, 2026 |
| Grant / award Cash Settled Restricted Stock Units | 9,221 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 6,148 | — | — | — | Aug 26, 2026 |
| Grant / award | 8,978 | — | 8,978 | — | Aug 26, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 39,105 | — | 39,105 | — | Aug 26, 2026 |
| Grant / award | 74,835 | — | 74,835 (indirect) | — | Aug 26, 2026 |
| Grant / award | 4,239 | — | 4,239 (indirect) | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 48,369 | — | — | — | Aug 26, 2026 |
| Grant / award Cash Settled Restricted Stock Units | 48,369 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 10,749 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 65,556 | — | — | — | Aug 26, 2026 |
| Grant / award Cash Settled Restricted Stock Units | 65,556 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 29,136 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 55,923 | — | — | — | Aug 26, 2026 |
| Grant / award Cash Settled Restricted Stock Units | 55,923 | — | — | — | Aug 26, 2026 |
| Grant / award Restricted Stock Units | 37,282 | — | — | — | Aug 26, 2026 |
| Grant / award Stock Option (right to buy) | 8,009 | — | — | — | Aug 26, 2026 |
| Grant / award Stock Option (right to buy) | 5,953 | — | — | — | Aug 26, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Open-market purchase 10b5-1 box not checked | 30,000 | $62.84 | 4,123,634 | +0.7% | Aug 27, 2026 |
† change in this filer’s own reported holding line (Form 4 Table I, col. 5), not of total company ownership; small prior holdings produce large percentages, so under 100 shares the prior holding is shown instead.
“10b5-1 box checked” = the filer checked the Form 4 box stating that a transaction on the filing was made under a plan intended to satisfy Rule 10b5-1(c); “10b5-1 box not checked” = the box was left blank, which does not prove that no plan exists. The box applies to Form 4s filed from April 1, 2023; older filings, and boxes we could not read, carry no tag. What the 10b5-1 box means.
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Option exercise | 10,448 | $15.61 | 306,317 | +3.5% | May 22, 2026 |
| Open-market sale 10b5-1 box not checked | 5,357 | $66.79 | 300,960 | −1.7% | May 22, 2026 |
| Open-market sale 10b5-1 box not checked | 1,300 | $67.49 | 299,660 | −0.4% | May 22, 2026 |
| Option exercise Stock Options (right to buy) | 10,448 | — | — | — | May 22, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 2,657 | — | 41,232 | +6.9% | May 13, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 2,657 | — | 17,780 | +18% | May 13, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 2,657 | — | 156,574 | +1.7% | May 13, 2026 |
| Transaction | Shares | Price | Held after | Change† | Date |
|---|---|---|---|---|---|
| Grant / award | 2,657 | — | 173,812 | +1.6% | May 13, 2026 |
Insider filings reported around the same time
Other companies whose most recent Form 4 was filed closest to SGI's (Aug 28, 2026).
Frequently asked about SGI insider activity
How many insiders bought SGI stock in these Form 4 filings?
1 distinct insider at Somnigroup International Inc. reported 1 open-market purchase (Form 4 code P) of SGI shares between May 15, 2026 and Aug 28, 2026, the most recent filed by Scott L. Thompson (CEO & PRESIDENT) on Aug 27, 2026. Grants, option exercises, and tax-withholding transactions are excluded from these counts.
Who filed the most recent Form 4 for SGI?
The most recent Form 4 on this page was filed by Karl G. Glassman (CEO - Leggett & Platt) on Aug 28, 2026, reporting 14 transactions. The original document is linked from the filing list above on SEC EDGAR. Amended filings (Form 4/A) may later revise reported figures.
What was the largest open-market SGI insider purchase shown?
The largest open-market purchase among the filings shown was 30,000 SGI shares at $62.84 (about $1,885,314) by Scott L. Thompson (CEO & PRESIDENT) on Aug 27, 2026. Value is shares × the price reported on the Form 4; its Rule 10b5-1 box is not checked.
Do the recent SGI insider purchases have the Form 4 10b5-1 box checked?
No. The one SGI open-market purchase shown was reported with the Rule 10b5-1 box not checked. A blank box records what the filer disclosed; it does not prove that no plan exists. Latest: Scott L. Thompson (CEO & PRESIDENT) on Aug 27, 2026, 30,000 shares.
New to Form 4s? The transaction codes, the 90-day window and the 0–100 score are defined on the insider-activity score methodology page.
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Track SGI insider filings free →This score summarizes SEC Form 4 filing activity over the trailing 90 days. It is descriptive, not predictive — not a rating, recommendation, or investment advice. Data: SEC EDGAR (public domain), as filed; amendments may revise figures. Tradune is not a registered investment adviser.
Data as filed; amended filings (Form 4/A) may revise figures. Sales may occur under prearranged Rule 10b5-1 trading plans.