Somnigroup International Inc. (SGI) Insider Trading

Last 12 months

Insiders bought $4.87M and sold $446k on the open market.

None of the selling was scheduled in advance under a 10b5-1 plan.

Net open-market

+$4.43M

2 buys · 1 sale

Under a 10b5-1 plan

of the value sold

Insiders who bought / sold

2 / 1

executives and directors

Last open-market buy

Aug 2026

Aug 27, 2026

Get an email when SGI's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Aug 27	Scott L Thompson CEO & PRESIDENT	Bought	30,000	$62.84	$1.89M	0.7%	Form 4
May 22	Steven H Rusing President & CEO Mattress Firm	SoldNo plan 2 parts	6,657	$66.93 average	$446k	2.0%	Form 4
Dec 2, 2025	Simon Dyer Director	Bought 2 parts	32,000	$93.40 average	$2.99M	228%	Form 4
Sep 5, 2025	Cathy R. Gates Director	SoldNo plan	6,016	$86.85	$522k	13%	Form 4
Aug 19, 2025	H Clifford Buster III CEO of Tempur Sealy	SoldNo plan	70,134	$81.20	$5.69M	12%	Form 4
Aug 13, 2025	Bhaskar Rao EVP & Chief Financial Officer	SoldNo plan 3 parts	95,891	$78.50 average	$7.53M	22%	Form 4
Jun 11, 2025	H Clifford Buster III CEO, North America	SoldNo plan	22,092	$65.80	$1.45M	3.7%	Form 4
Jun 11, 2025	David Montgomery EVP Global Business Strategy	SoldNo plan 2 parts	76,008	$65.68 average	$4.99M	7.9%	Form 4
Mar 6, 2025	Evelyn S Dilsaver Director	SoldNo plan	1,748	$60.18	$105k	1.1%	Form 4
Mar 3, 2025	David Montgomery EVP Global Business Strategy	SoldNo plan	32,785	$62.88	$2.06M	3.6%	Form 4

Aug 27
Scott L Thompson
CEO & PRESIDENT · bought 30,000 at $62.84
$1.89M
0.7% of stake
May 22No plan
Steven H Rusing
President & CEO Mattress Firm · sold 6,657 at avg $66.93
$446k
2.0% of stake
Dec 2, 2025
Simon Dyer
Director · bought 32,000 at avg $93.40
$2.99M
228% of stake
Sep 5, 2025No plan
Cathy R. Gates
Director · sold 6,016 at $86.85
$522k
13% of stake
Aug 19, 2025No plan
H Clifford Buster III
CEO of Tempur Sealy · sold 70,134 at $81.20
$5.69M
12% of stake
Aug 13, 2025No plan
Bhaskar Rao
EVP & Chief Financial Officer · sold 95,891 at avg $78.50
$7.53M
22% of stake
Jun 11, 2025No plan
H Clifford Buster III
CEO, North America · sold 22,092 at $65.80
$1.45M
3.7% of stake
Jun 11, 2025No plan
David Montgomery
EVP Global Business Strategy · sold 76,008 at avg $65.68
$4.99M
7.9% of stake
Mar 6, 2025No plan
Evelyn S Dilsaver
Director · sold 1,748 at $60.18
$105k
1.1% of stake
Mar 3, 2025No plan
David Montgomery
EVP Global Business Strategy · sold 32,785 at $62.88
$2.06M
3.6% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch SGI, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Spot a number that looks wrong? Check it in SGI's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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