COMFORT SYSTEMS USA INC (FIX)

Data as of Aug 27, 2026, from SEC Form 4 filings.

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Latest FIX insider trades

Brian E. Lane - Officer
Open-market sale$25.77M
Aug 26, 2026
William George III - Officer
Open-market sale$4.75M
Aug 17, 2026

About COMFORT SYSTEMS USA INC (FIX)

COMFORT SYSTEMS USA INC is an SEC registrant, filing under CIK 0001035983, classified as electrical work. We track it alongside the rest of the Industrials sector.

Sector: Industrials

SEC filings for FIX on EDGAR

FIX Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Open-market sale	4	26,078	$43.21M

FIX insider transactions (Form 4)

92 Form 4 filings on record, the earliest from Oct 29, 2024, newest first. Filing history page 1 of 3.

Date	Insider	Transaction	Security	Shares	Price	Value
Aug 26, 2026	Brian E. Lane - Officer	Open-market sale	Common Stock	16,024	$1,608.21^{footnote F1}	$25.77M
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
Aug 17, 2026	William George III - Officer	Open-market sale	Common Stock	2,554	$1,859.65^{footnote F1}	$4.75M
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
Aug 10, 2026	Franklin Myers - Director	Open-market sale	Common Stock	3,500	$1,690.47^{footnote F1}	$5.92M
Aug 11, 2026	Franklin Myers - Director	Open-market sale	Common Stock	4,000	$1,693.92^{footnote F1}	$6.78M
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
Jun 24, 2026	Franklin Myers	Open-market sale	Common Stock	6,700	$1,954.47^{footnote F1}	$13.09M
Footnote F1 (price): The Reporting Person contributed FIX common stock to an exchange fund in exchange for shares of the exchange fund. The FIX common stock was valued at $1,954.47 per share for the purpose of determining the number of shares of the exchange fund issuable to the Reporting Person.
May 27, 2026	Rhoman J. Hardy	Open-market sale	Common Stock	342	$1,900.08^{footnote F1}	$650K
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
May 21, 2026	Franklin Myers	Gift	Common Stock	273	$0.00	-
May 18, 2026	Darcy Anderson	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	Franklin Myers	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	Herman E. Bulls	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	Rhoman J. Hardy	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	Gaurav Kapoor	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	Pablo G. Mercado,	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	William J. Sandbrook	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	Constance Ellen Skidmore	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 18, 2026	Cindy L. Wallis-Lage	Grant or award	Common Stock	105	$0.00^{footnote F1}	-
Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR
May 8, 2026	William George III - Officer	Open-market sale	Common Stock	4,000	$1,948.17^{footnote F1}	$7.79M
May 11, 2026	William George III - Officer	Open-market sale	Common Stock	1,000	$2,020.97^{footnote F1}	$2.02M
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
May 11, 2026	Julie Shaeff - Officer	Open-market sale	Common Stock	1,123	$2,000.37^{footnote F1}	$2.25M
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
May 7, 2026	Franklin Myers	Gift	Common Stock	51	$0.00	-
May 7, 2026	Franklin Myers	Gift	Common Stock	205	$0.00	-
May 7, 2026	Franklin Myers	Gift	Common Stock	256	$0.00	-
May 7, 2026	Franklin Myers	Open-market sale	Common Stock	4,500	$1,902.57^{footnote F2}	$8.56M
Footnote F2 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
May 5, 2026	Brian E. Lane - Officer	Open-market sale	Common Stock	11,113	$1,969.84^{footnote F1}	$21.89M
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
Apr 30, 2026	Pablo G. Mercado,	Open-market sale	Common Stock	500	$1,779.78^{footnote F1}	$890K
Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.
Apr 1, 2026	Rachel R. Eslicker - Officer	Tax withholding / forfeiture	Common Stock	31^{footnote F2}	$1,429.60^{footnote F3}	$44K
Apr 1, 2026	Rachel R. Eslicker - Officer	Tax withholding / forfeiture	Common Stock	25^{footnote F4}	$1,429.60^{footnote F3}	$36K
Apr 1, 2026	Rachel R. Eslicker - Officer	Tax withholding / forfeiture	Common Stock	43^{footnote F5}	$1,429.60^{footnote F3}	$61K
Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025. Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026. Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024. Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.
Apr 1, 2026	Julie Shaeff - Officer	Tax withholding / forfeiture	Common Stock	87^{footnote F2}	$1,429.60^{footnote F3}	$124K
Apr 1, 2026	Julie Shaeff - Officer	Tax withholding / forfeiture	Common Stock	87^{footnote F4}	$1,429.60^{footnote F3}	$124K
Apr 1, 2026	Julie Shaeff - Officer	Tax withholding / forfeiture	Common Stock	145^{footnote F5}	$1,429.60^{footnote F3}	$207K
Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025. Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026. Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024. Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.
Apr 1, 2026	Terrence Reed - Officer	Tax withholding / forfeiture	Common Stock	98^{footnote F2}	$1,429.60^{footnote F3}	$140K
Apr 1, 2026	Terrence Reed - Officer	Tax withholding / forfeiture	Common Stock	82^{footnote F4}	$1,429.60^{footnote F3}	$117K
Apr 1, 2026	Terrence Reed - Officer	Tax withholding / forfeiture	Common Stock	93^{footnote F5}	$1,429.60^{footnote F3}	$133K
Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025. Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026. Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024. Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.
Apr 1, 2026	William George III - Officer	Tax withholding / forfeiture	Common Stock	284^{footnote F2}	$1,429.60^{footnote F3}	$406K
Apr 1, 2026	William George III - Officer	Tax withholding / forfeiture	Common Stock	297^{footnote F4}	$1,429.60^{footnote F3}	$425K
Apr 1, 2026	William George III - Officer	Tax withholding / forfeiture	Common Stock	500^{footnote F5}	$1,429.60^{footnote F3}	$715K
Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025. Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026. Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024. Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.
Apr 1, 2026	T. McKenna Trent - Officer	Tax withholding / forfeiture	Common Stock	266^{footnote F2}	$1,429.60^{footnote F3}	$380K
Apr 1, 2026	T. McKenna Trent - Officer	Tax withholding / forfeiture	Common Stock	210^{footnote F4}	$1,429.60^{footnote F3}	$300K
Apr 1, 2026	T. McKenna Trent - Officer	Tax withholding / forfeiture	Common Stock	341^{footnote F5}	$1,429.60^{footnote F3}	$487K
Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025. Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026. Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024. Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.
Apr 1, 2026	Brian E. Lane - Officer	Tax withholding / forfeiture	Common Stock	1,146^{footnote F2}	$1,429.60^{footnote F3}	$1.64M
Apr 1, 2026	Brian E. Lane - Officer	Tax withholding / forfeiture	Common Stock	941^{footnote F4}	$1,429.60^{footnote F3}	$1.35M
Apr 1, 2026	Brian E. Lane - Officer	Tax withholding / forfeiture	Common Stock	1,512^{footnote F5}	$1,429.60^{footnote F3}	$2.16M
Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025. Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026. Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024. Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.
Mar 23, 2026	Julie Shaeff - Officer	Grant or award	Common Stock	194^{footnote F1}	$0.00	-
Mar 23, 2026	Julie Shaeff - Officer	Grant or award	Common Stock	220^{footnote F2}	$0.00	-
Mar 23, 2026	Julie Shaeff - Officer	Tax withholding / forfeiture	Common Stock	84^{footnote F3}	$1,408.25	$118K
Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule. Footnote F2 (shares): Reflects dollar-denominated performance restricted stock units granted on March 21, 2023 that vested on March 23, 2026. These units vested as a result of the Company's 2023-2025 relative Total Shareholder Return and 2023-2025 Company average EPS, which are the applicable… Full note on SEC EDGAR Footnote F3 (shares): Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 23, 2026 and were priced based on the closing price of the Company common stock on March 23, 2026.
Mar 23, 2026	William George III - Officer	Grant or award	Common Stock	597^{footnote F1}	$0.00	-
Mar 23, 2026	William George III - Officer	Grant or award	Common Stock	764^{footnote F2}	$0.00	-
Mar 23, 2026	William George III - Officer	Tax withholding / forfeiture	Common Stock	300^{footnote F3}	$1,408.25	$422K
Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule. Footnote F2 (shares): Reflects dollar-denominated performance restricted stock units granted on March 21, 2023 that vested on March 23, 2026. These units vested as a result of the Company's 2023-2025 relative Total Shareholder Return and 2023-2025 Company average EPS, which are the applicable… Full note on SEC EDGAR Footnote F3 (shares): Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 23, 2026 and were priced based on the closing price of the Company common stock on March 23, 2026.
Mar 23, 2026	Terrence Reed - Officer	Grant or award	Common Stock	275^{footnote F1}	$0.00	-
Mar 23, 2026	Terrence Reed - Officer	Grant or award	Common Stock	188^{footnote F2}	$0.00	-
Mar 23, 2026	Terrence Reed - Officer	Tax withholding / forfeiture	Common Stock	56^{footnote F3}	$1,408.25	$79K
Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule. Footnote F2 (shares): Reflects dollar-denominated performance restricted stock units granted on March 21, 2023 that vested on March 23, 2026. These units vested as a result of the Company's 2023-2025 relative Total Shareholder Return and 2023-2025 Company average EPS, which are the applicable… Full note on SEC EDGAR Footnote F3 (shares): Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 23, 2026 and were priced based on the closing price of the Company common stock on March 23, 2026.
Mar 23, 2026	Rachel R. Eslicker - Officer	Grant or award	Common Stock	217^{footnote F1}	$0.00	-
Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule.

Recent FIX Form 8-K filings

Read FIX company news

Aug 3, 2026Item 7.01, 9.01

Read the filing on SEC EDGAR

Jul 23, 2026Item 2.02, 8.01, 9.01

Read the filing on SEC EDGAR

Jun 22, 2026Item 5.02, 7.01, 9.01

Read the filing on SEC EDGAR

May 21, 2026Item 5.07

Recent FIX Form 144 notices of proposed sale

An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.

Filed	Filer	Relationship	Shares	Market value	Notice
Aug 26, 2026	BRIAN E LANE	Officer, Director	16,024	$25.77M	View on EDGAR
Aug 17, 2026	GEORGE WILLIAM III	Officer	2,554

Congress trades in FIX

All congress trades

Stock trades in FIX disclosed by members of the U.S. House in the last 12 months, newest first. Values are the ranges as filed.

Member	Type	Traded	Disclosed	Value range	Owner	Days to disclose	Filing
Byron DonaldsRepublican, FL-19	Purchase

FIX insider trading FAQ

What is the latest insider trade for FIX?

COMFORT SYSTEMS USA INC (FIX) had 3 insider filings in the last 90 days, with the most recent on 2026-08-27. The full record for FIX runs to 92 Form 4 filings, the earliest from 2024-10-29. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying FIX stock?

No insider purchases of FIX were filed in the last 90 days.

How many insiders are selling FIX stock?

4 insider sales of FIX were filed in the last 90 days, totaling $43.21M.

Where can I see FIX SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects FIX Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Industrials companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Aug 27, 2026 - Brian E. Lane view on EDGAR
Aug 18, 2026 - William George III view on EDGAR
Aug 12, 2026 - Franklin Myers view on EDGAR
Jun 26, 2026 - Franklin Myers view on EDGAR
May 28, 2026 - Rhoman J. Hardy view on EDGAR
May 22, 2026 - Franklin Myers view on EDGAR
May 19, 2026 - Darcy Anderson view on EDGAR
May 19, 2026 - Franklin Myers view on EDGAR
May 19, 2026 - Herman E. Bulls view on EDGAR

Related companies with recent insider activity

Learn more

Insider selling: signal or noise?: Why most insider sales are routine, and the few patterns worth a second look.
Form 144 vs Form 4: A Form 144 announces a planned sale; the Form 4 reports it after it happens.
Insider activity in Industrials: Where FIX's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Form 4 transaction type

Transactions

Total value

Open-market sale

26,078

$43.21M

Date

Insider

Transaction

Security

Price

Value

Aug 26, 2026

Brian E. Lane - Officer

Open-market sale

Common Stock

16,024

$1,608.21^{footnote F1}

$25.77M

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

Aug 17, 2026

William George III - Officer

Open-market sale

Common Stock

2,554

$1,859.65^{footnote F1}

$4.75M

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

Aug 10, 2026

Franklin Myers - Director

Open-market sale

Common Stock

3,500

$1,690.47^{footnote F1}

$5.92M

Aug 11, 2026

Franklin Myers - Director

Open-market sale

Common Stock

4,000

$1,693.92^{footnote F1}

$6.78M

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

Jun 24, 2026

Franklin Myers

Open-market sale

Common Stock

6,700

$1,954.47^{footnote F1}

$13.09M

Footnote F1 (price): The Reporting Person contributed FIX common stock to an exchange fund in exchange for shares of the exchange fund. The FIX common stock was valued at $1,954.47 per share for the purpose of determining the number of shares of the exchange fund issuable to the Reporting Person.

May 27, 2026

Rhoman J. Hardy

Open-market sale

Common Stock

342

$1,900.08^{footnote F1}

$650K

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

May 21, 2026

Franklin Myers

Gift

Common Stock

273

$0.00

May 18, 2026

Darcy Anderson

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

Franklin Myers

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

Herman E. Bulls

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

Rhoman J. Hardy

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

Gaurav Kapoor

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

Pablo G. Mercado,

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

William J. Sandbrook

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

Constance Ellen Skidmore

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 18, 2026

Cindy L. Wallis-Lage

Grant or award

Common Stock

105

$0.00^{footnote F1}

Footnote F1 (price): Shares granted pursuant to the 2017 Omnibus Incentive Plan as approved by stockholders on May 23, 2017. Non-employee directors are given an annual grant of Comfort Systems USA Common Stock following election or reelection at the Company's annual stockholders' meeting. This… Full note on SEC EDGAR

May 8, 2026

William George III - Officer

Open-market sale

Common Stock

4,000

$1,948.17^{footnote F1}

$7.79M

May 11, 2026

William George III - Officer

Open-market sale

Common Stock

1,000

$2,020.97^{footnote F1}

$2.02M

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

May 11, 2026

Julie Shaeff - Officer

Open-market sale

Common Stock

1,123

$2,000.37^{footnote F1}

$2.25M

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

May 7, 2026

Franklin Myers

Gift

Common Stock

$0.00

May 7, 2026

Franklin Myers

Gift

Common Stock

205

$0.00

May 7, 2026

Franklin Myers

Gift

Common Stock

256

$0.00

May 7, 2026

Franklin Myers

Open-market sale

Common Stock

4,500

$1,902.57^{footnote F2}

$8.56M

Footnote F2 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

May 5, 2026

Brian E. Lane - Officer

Open-market sale

Common Stock

11,113

$1,969.84^{footnote F1}

$21.89M

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

Apr 30, 2026

Pablo G. Mercado,

Open-market sale

Common Stock

500

$1,779.78^{footnote F1}

$890K

Footnote F1 (price): Represents the average price of shares sold; full information regarding the number of shares sold and specific prices will be made available upon request to the Company's Office of the General Counsel.

Apr 1, 2026

Rachel R. Eslicker - Officer

Tax withholding / forfeiture

Common Stock

31^{footnote F2}

$1,429.60^{footnote F3}

$44K

Apr 1, 2026

Rachel R. Eslicker - Officer

Tax withholding / forfeiture

Common Stock

25^{footnote F4}

$1,429.60^{footnote F3}

$36K

Apr 1, 2026

Rachel R. Eslicker - Officer

Tax withholding / forfeiture

Common Stock

43^{footnote F5}

$1,429.60^{footnote F3}

$61K

Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.
Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026.
Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.
Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

Apr 1, 2026

Julie Shaeff - Officer

Tax withholding / forfeiture

Common Stock

87^{footnote F2}

$1,429.60^{footnote F3}

$124K

Apr 1, 2026

Julie Shaeff - Officer

Tax withholding / forfeiture

Common Stock

87^{footnote F4}

$1,429.60^{footnote F3}

$124K

Apr 1, 2026

Julie Shaeff - Officer

Tax withholding / forfeiture

Common Stock

145^{footnote F5}

$1,429.60^{footnote F3}

$207K

Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.
Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026.
Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.
Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

Apr 1, 2026

Terrence Reed - Officer

Tax withholding / forfeiture

Common Stock

98^{footnote F2}

$1,429.60^{footnote F3}

$140K

Apr 1, 2026

Terrence Reed - Officer

Tax withholding / forfeiture

Common Stock

82^{footnote F4}

$1,429.60^{footnote F3}

$117K

Apr 1, 2026

Terrence Reed - Officer

Tax withholding / forfeiture

Common Stock

93^{footnote F5}

$1,429.60^{footnote F3}

$133K

Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.
Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026.
Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.
Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

Apr 1, 2026

William George III - Officer

Tax withholding / forfeiture

Common Stock

284^{footnote F2}

$1,429.60^{footnote F3}

$406K

Apr 1, 2026

William George III - Officer

Tax withholding / forfeiture

Common Stock

297^{footnote F4}

$1,429.60^{footnote F3}

$425K

Apr 1, 2026

William George III - Officer

Tax withholding / forfeiture

Common Stock

500^{footnote F5}

$1,429.60^{footnote F3}

$715K

Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.
Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026.
Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.
Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

Apr 1, 2026

T. McKenna Trent - Officer

Tax withholding / forfeiture

Common Stock

266^{footnote F2}

$1,429.60^{footnote F3}

$380K

Apr 1, 2026

T. McKenna Trent - Officer

Tax withholding / forfeiture

Common Stock

210^{footnote F4}

$1,429.60^{footnote F3}

$300K

Apr 1, 2026

T. McKenna Trent - Officer

Tax withholding / forfeiture

Common Stock

341^{footnote F5}

$1,429.60^{footnote F3}

$487K

Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.
Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026.
Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.
Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

Apr 1, 2026

Brian E. Lane - Officer

Tax withholding / forfeiture

Common Stock

1,146^{footnote F2}

$1,429.60^{footnote F3}

$1.64M

Apr 1, 2026

Brian E. Lane - Officer

Tax withholding / forfeiture

Common Stock

941^{footnote F4}

$1,429.60^{footnote F3}

$1.35M

Apr 1, 2026

Brian E. Lane - Officer

Tax withholding / forfeiture

Common Stock

1,512^{footnote F5}

$1,429.60^{footnote F3}

$2.16M

Footnote F2 (shares): Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.
Footnote F3 (price): Price is based on the average of the high and low stock price on April 1, 2026.
Footnote F4 (shares): Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.
Footnote F5 (shares): Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

Mar 23, 2026

Julie Shaeff - Officer

Grant or award

Common Stock

194^{footnote F1}

$0.00

Mar 23, 2026

Julie Shaeff - Officer

Grant or award

Common Stock

220^{footnote F2}

$0.00

Mar 23, 2026

Julie Shaeff - Officer

Tax withholding / forfeiture

Common Stock

84^{footnote F3}

$1,408.25

$118K

Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule.
Footnote F2 (shares): Reflects dollar-denominated performance restricted stock units granted on March 21, 2023 that vested on March 23, 2026. These units vested as a result of the Company's 2023-2025 relative Total Shareholder Return and 2023-2025 Company average EPS, which are the applicable… Full note on SEC EDGAR
Footnote F3 (shares): Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 23, 2026 and were priced based on the closing price of the Company common stock on March 23, 2026.

Mar 23, 2026

William George III - Officer

Grant or award

Common Stock

597^{footnote F1}

$0.00

Mar 23, 2026

William George III - Officer

Grant or award

Common Stock

764^{footnote F2}

$0.00

Mar 23, 2026

William George III - Officer

Tax withholding / forfeiture

Common Stock

300^{footnote F3}

$1,408.25

$422K

Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule.
Footnote F2 (shares): Reflects dollar-denominated performance restricted stock units granted on March 21, 2023 that vested on March 23, 2026. These units vested as a result of the Company's 2023-2025 relative Total Shareholder Return and 2023-2025 Company average EPS, which are the applicable… Full note on SEC EDGAR
Footnote F3 (shares): Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 23, 2026 and were priced based on the closing price of the Company common stock on March 23, 2026.

Mar 23, 2026

Terrence Reed - Officer

Grant or award

Common Stock

275^{footnote F1}

$0.00

Mar 23, 2026

Terrence Reed - Officer

Grant or award

Common Stock

188^{footnote F2}

$0.00

Mar 23, 2026

Terrence Reed - Officer

Tax withholding / forfeiture

Common Stock

56^{footnote F3}

$1,408.25

$79K

Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule.
Footnote F2 (shares): Reflects dollar-denominated performance restricted stock units granted on March 21, 2023 that vested on March 23, 2026. These units vested as a result of the Company's 2023-2025 relative Total Shareholder Return and 2023-2025 Company average EPS, which are the applicable… Full note on SEC EDGAR
Footnote F3 (shares): Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 23, 2026 and were priced based on the closing price of the Company common stock on March 23, 2026.

Mar 23, 2026

Rachel R. Eslicker - Officer

Grant or award

Common Stock

217^{footnote F1}

$0.00

Footnote F1 (shares): Each restricted stock unit granted on March 23, 2026 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule.

Filed

Filer

Relationship

Market value

Notice

Aug 26, 2026

BRIAN E LANE

Officer, Director

16,024

$25.77M

View on EDGAR

Aug 17, 2026

GEORGE WILLIAM III

Officer

2,554

Member	Type	Traded	Disclosed	Value range	Owner	Days to disclose	Filing
Byron DonaldsRepublican, FL-19	Purchase

Member

Type

Traded

Disclosed

Value range

Owner

Days to disclose

Filing

Byron DonaldsRepublican, FL-19

Purchase