Transactions
24
Insider / SOMNIGROUP INTERNATIONAL INC.
MONTGOMERY DAVID
EVP Global Business Strategy at SOMNIGROUP INTERNATIONAL INC.
- Ticker
- SGI
- First filing on record
- November 14, 2025
- Latest trade on record
- February 26, 2026
- SEC filings
- EDGAR ↗
MONTGOMERY DAVID, EVP Global Business Strategy at SOMNIGROUP INTERNATIONAL INC., has disclosed 24 transactions in SGI since November 14, 2025: 0 purchases (0 open-market buys) and 7 sales, worth about $1.2M at the reported prices. The latest was filed March 2, 2026, 4 days after the trade.
Open-market buys
0
Sales
7
Avg. disclosure lag
3.9d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months MONTGOMERY DAVID made no purchases and 7 sales worth $1.2M, plus 17 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
MONTGOMERY DAVID has traded 1 stock on record; the largest by dollars is SGI.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 3 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 14 | 55,604 | — |
| F | Shares withheld for tax | 7 | 13,071 | $1.2M |
| A | Grant or award | 2 | 14,650 | — |
| G | Gift | 1 | 40,000 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 23 | 0 | 7 · $1.2M |
| 2025 | 1 | 0 | 0 |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| SGI | Other A | February 26, 2026 | March 2, 2026 | 4d | 9,015 | — | — | derivative | Form 4 ↗ | |
| SGI | Other A | January 2, 2026 | January 6, 2026 | 4d | 5,635 | — | — | derivative | Form 4 ↗ | |
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 4,198 | — | — | derivative | Form 4 ↗ | |
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 9,619 | — | — | derivative | Form 4 ↗ | |
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,961 | — | — | derivative | Form 4 ↗ | |
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,243 | — | — | derivative | Form 4 ↗ | |
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,609 | — | — | derivative | Form 4 ↗ | |
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 3,579 | — | — | derivative | Form 4 ↗ | |
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,593 | — | — | derivative | Form 4 ↗ | |
| SGI | Sell F | January 2, 2026 | January 6, 2026 | 4d | 1,974 | $89 | $175K | Form 4 ↗ | ||
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 4,198 | — | — | Form 4 ↗ | ||
| SGI | Sell F | January 2, 2026 | January 6, 2026 | 4d | 4,521 | $89 | $401K | Form 4 ↗ | ||
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 9,619 | — | — | Form 4 ↗ | ||
| SGI | Sell F | January 2, 2026 | January 6, 2026 | 4d | 1,392 | $89 | $124K | Form 4 ↗ | ||
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,961 | — | — | Form 4 ↗ | ||
| SGI | Sell F | January 2, 2026 | January 6, 2026 | 4d | 1,055 | $89 | $94K | Form 4 ↗ | ||
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,243 | — | — | Form 4 ↗ | ||
| SGI | Sell F | January 2, 2026 | January 6, 2026 | 4d | 1,227 | $89 | $109K | Form 4 ↗ | ||
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,609 | — | — | Form 4 ↗ | ||
| SGI | Sell F | January 2, 2026 | January 6, 2026 | 4d | 1,683 | $89 | $149K | Form 4 ↗ | ||
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 3,579 | — | — | Form 4 ↗ | ||
| SGI | Sell F | January 2, 2026 | January 6, 2026 | 4d | 1,219 | $89 | $108K | Form 4 ↗ | ||
| SGI | Option / conversion M | January 2, 2026 | January 6, 2026 | 4d | 2,593 | — | — | Form 4 ↗ | ||
| SGI | Other G | November 13, 2025 | November 14, 2025 | 1d | 40,000 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| March 2, 2026 | Form 4 | 0001272798-26-000004 | 1 | published | EDGAR ↗ |
| January 6, 2026 | Form 4 | 0001272798-26-000002 | 22 | published | EDGAR ↗ |
| November 14, 2025 | Form 4 | 0001272798-25-000005 | 1 | published | EDGAR ↗ |
Other insiders at SOMNIGROUP INTERNATIONAL INC.
- Rusing Steven H President & CEO Mattress Firm 28 rows
- BUSTER H CLIFFORD III CEO of Tempur Sealy 24 rows
- Rao Bhaskar EVP & Chief Financial Officer 23 rows
- GLASSMAN KARL G CEO - Leggett & Platt 14 rows
- THOMPSON SCOTT L CEO & PRESIDENT 11 rows
- HAGALE JAMES TYSON President - Leggett & Platt 10 rows
- Dyer Simon Director 6 rows
- Cook Christopher Thomas Director 2 rows
- Dilsaver Evelyn S Director 2 rows
- Gates Cathy R. Director 2 rows
Everyone on file, with contracts and lobbying under the company's name: SOMNIGROUP INTERNATIONAL INC..
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 3 | 24 | November 14, 2025 | March 2, 2026 | Form 4 list on EDGAR |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.