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Trent T McKenna

Disclosed activity across 1 company

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53945
SEC CIK
0001373205

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
COMFORT SYSTEMS USA INCFIX · Entity 3020PRESIDENT/CHIEF OPERATING OFF.April 01, 2026April 03, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

COMFORT SYSTEMS USA INC

Report date April 01, 2026 · Filed April 03, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect22,346 Ending reported balance After 2026-04-01 transaction · row 3
3 source rows · reconciled sequence

Row 1 · 2026-04-01 · Tax withholding · Disposed 266 · Balance 22,897

F1: Forfeited shares are related to restricted stock units that vested on April 1, 2026 and were priced based on the average of the high and low stock price on April 1, 2026.

F2: Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.

F3: Price is based on the average of the high and low stock price on April 1, 2026.

Row 2 · 2026-04-01 · Tax withholding · Disposed 210 · Balance 22,687

F1: Forfeited shares are related to restricted stock units that vested on April 1, 2026 and were priced based on the average of the high and low stock price on April 1, 2026.

F4: Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.

F3: Price is based on the average of the high and low stock price on April 1, 2026.

Row 3 · 2026-04-01 · Tax withholding · Disposed 341 · Balance 22,346

F1: Forfeited shares are related to restricted stock units that vested on April 1, 2026 and were priced based on the average of the high and low stock price on April 1, 2026.

F5: Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

F3: Price is based on the average of the high and low stock price on April 1, 2026.

Filing footnotes · ownership attribution and instrument terms

F1: Forfeited shares are related to restricted stock units that vested on April 1, 2026 and were priced based on the average of the high and low stock price on April 1, 2026.

F2: Reflects forfeited shares related to the first vesting of restricted stock units granted on March 19, 2025.

F3: Price is based on the average of the high and low stock price on April 1, 2026.

F4: Reflects forfeited shares related to the second vesting of restricted stock units granted on March 20, 2024.

F5: Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 21, 2023.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 29, 2021 Filed Nov 2, 2021 15:18 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 4,000 $30.36 $121,440.00
Disclosure

SEC source: 0001179110-21-009747 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,017

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 24, 2021 Filed May 25, 2021 16:51 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 3,000 $0.00 Strike: $42.50 $0.00
Disclosure

SEC source: 0001179110-21-005856 · edgar.xml · derivative · entry 7

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,310

Underlying: Common Stock · 3,000 shares

Expires 2028-03-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Stock options were granted on 03/07/2018, vested equally over a three-year period, and were fully vested on 04/01/2021.

Read SEC document
May 24, 2021 Filed May 25, 2021 16:51 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 3,000 $0.00 Strike: $36.25 $0.00
Disclosure

SEC source: 0001179110-21-005856 · edgar.xml · derivative · entry 6

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,076

Underlying: Common Stock · 3,000 shares

Expires 2027-03-08

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Stock options were granted on 03/08/2017, vested equally over a three-year period, and were fully vested on 04/01/2020.

Read SEC document
May 24, 2021 Filed May 25, 2021 16:51 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 3,000 $0.00 Strike: $30.36 $0.00
Disclosure

SEC source: 0001179110-21-005856 · edgar.xml · derivative · entry 5

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,939

Underlying: Common Stock · 3,000 shares

Expires 2026-03-23

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Stock options were granted on 03/23/2016, vested equally over a three-year period, and were fully vested on 04/01/2019.

Read SEC document
May 24, 2021 Filed May 25, 2021 16:51 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 SaleCommon Stock 9,000 $80.70 $726,256.80
Disclosure

SEC source: 0001179110-21-005856 · edgar.xml · nonDerivative · entry 4

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,017

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.

Read SEC document
May 24, 2021 Filed May 25, 2021 16:51 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 3,000 $42.50 $127,500.00
Disclosure

SEC source: 0001179110-21-005856 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,017

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 24, 2021 Filed May 25, 2021 16:51 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 3,000 $36.25 $108,750.00
Disclosure

SEC source: 0001179110-21-005856 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,017

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 24, 2021 Filed May 25, 2021 16:51 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 3,000 $30.36 $91,080.00
Disclosure

SEC source: 0001179110-21-005856 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,017

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 01, 2021 Filed Apr 5, 2021 20:48 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 309 $75.56 $23,348.04
Disclosure

SEC source: 0001179110-21-004197 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,017

F1 · date: Forfeited shares are related to restricted stock units that vested on April 1, 2021 and were priced based on the average of the high and low stock price on April 1, 2021.

F5 · shares: Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 7, 2018.

F3 · price: Price is based on the average of the high and low stock price on April 1, 2021.

Read SEC document
April 01, 2021 Filed Apr 5, 2021 20:48 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 471 $75.56 $35,588.76
Disclosure

SEC source: 0001179110-21-004197 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,326

F1 · date: Forfeited shares are related to restricted stock units that vested on April 1, 2021 and were priced based on the average of the high and low stock price on April 1, 2021.

F4 · shares: Reflects forfeited shares related to the second vesting of restricted stock units granted on March 6, 2019.

F3 · price: Price is based on the average of the high and low stock price on April 1, 2021.

Read SEC document
April 01, 2021 Filed Apr 5, 2021 20:48 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 605 $75.56 $45,713.80
Disclosure

SEC source: 0001179110-21-004197 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,797

F1 · date: Forfeited shares are related to restricted stock units that vested on April 1, 2021 and were priced based on the average of the high and low stock price on April 1, 2021.

F2 · shares: Reflects forfeited shares related to the first vesting of restricted stock units granted on March 5, 2020.

F3 · price: Price is based on the average of the high and low stock price on April 1, 2021.

Read SEC document
March 10, 2021 Filed Mar 12, 2021 21:49 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 1,166 $74.70 $87,100.20
Disclosure

SEC source: 0001179110-21-003351 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,402

F3 · shares: Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 10, 2021 and were priced based on the closing price of the Company's common stock on March 10, 2021.

Read SEC document
March 10, 2021 Filed Mar 12, 2021 21:49 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 GrantCommon Stock 3,094 $0.00 $0.00
Disclosure

SEC source: 0001179110-21-003351 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,568

F2 · shares: Reflects dollar-denominated performance restricted stock units granted on March 7, 2018 that vested on March 10, 2021. These units vested as a result of the Company's 2018-2020 relative Total Shareholder Return and 2018-2020 Company average EPS - the applicable performance metrics.

Read SEC document
March 10, 2021 Filed Mar 12, 2021 21:49 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 GrantCommon Stock 3,078 $0.00 $0.00
Disclosure

SEC source: 0001179110-21-003351 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,474

F1 · shares: Each restricted stock unit granted on March 10, 2021 represents a right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule.

Read SEC document
November 05, 2018 Filed Nov 5, 2018 21:07 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 5,000 $0.00 Strike: $16.15 $0.00
Disclosure

SEC source: 0001179110-18-012539 · edgar.xml · derivative · entry 7

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2024-03-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Stock options were granted on 3/19/2014, vested equally over a three-year period, and were fully vested on 4/1/2017.

Read SEC document
November 05, 2018 Filed Nov 5, 2018 21:07 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 5,000 $0.00 Strike: $13.86 $0.00
Disclosure

SEC source: 0001179110-18-012539 · edgar.xml · derivative · entry 6

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2023-03-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Stock options were granted on 3/20/2013, vested equally over a three-year period, and were fully vested on 4/1/2016.

Read SEC document
November 05, 2018 Filed Nov 5, 2018 21:07 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 5,000 $0.00 Strike: $11.21 $0.00
Disclosure

SEC source: 0001179110-18-012539 · edgar.xml · derivative · entry 5

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,000

Underlying: Common Stock · 5,000 shares

Expires 2022-03-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Stock options were granted on 3/26/2012, vested equally over a three-year period, and were fully vested on 4/1/2015.

Read SEC document
November 05, 2018 Filed Nov 5, 2018 21:07 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 SaleCommon Stock 15,000 $54.79 $821,850.00
Disclosure

SEC source: 0001179110-18-012539 · edgar.xml · nonDerivative · entry 4

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,341

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.

Read SEC document
November 05, 2018 Filed Nov 5, 2018 21:07 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 5,000 $16.15 $80,750.00
Disclosure

SEC source: 0001179110-18-012539 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,341

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 05, 2018 Filed Nov 5, 2018 21:07 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 5,000 $13.86 $69,300.00
Disclosure

SEC source: 0001179110-18-012539 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,341

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 05, 2018 Filed Nov 5, 2018 21:07 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 5,000 $11.21 $56,050.00
Disclosure

SEC source: 0001179110-18-012539 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,341

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 2,717 $0.00 Strike: $19.67 $0.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · derivative · entry 16

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 2,717 shares

Expires 2025-03-25

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: Stock options were granted on 3/25/2015, vested equally over a three-year period, and were fully vested on 4/1/2018.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 5,147 $0.00 Strike: $16.15 $0.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · derivative · entry 15

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 5,147 shares

Expires 2024-03-19

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: Stock options were granted on 3/19/2014, vested equally over a three-year period, and were fully vested on 4/1/2017.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 136 $0.00 Strike: $13.86 $0.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · derivative · entry 14

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 136 shares

Expires 2023-03-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Stock options were granted on 3/20/2013, vested equally over a three-year period, and were fully vested on 4/1/2016.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 SaleCommon Stock 2,500 $46.04 $115,100.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 10

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,341

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.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 SaleCommon Stock 8,000 $46.01 $368,080.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 9

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,841

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.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 2,717 $19.67 $53,443.39
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 8

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,841

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 5,147 $16.15 $83,124.05
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 7

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,124

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 25, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 136 $13.86 $1,884.96
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 6

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,977

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 1,765 $0.00 Strike: $13.86 $0.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · derivative · entry 13

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,136

Underlying: Common Stock · 1,765 shares

Expires 2023-03-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Stock options were granted on 3/20/2013, vested equally over a three-year period, and were fully vested on 4/1/2016.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 5,614 $0.00 Strike: $11.21 $0.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · derivative · entry 12

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,000

Underlying: Common Stock · 5,614 shares

Expires 2022-03-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Stock options were granted on 3/26/2012, vested equally over a three-year period, and were fully vested on 4/1/2015.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 754 $0.00 Strike: $13.87 $0.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · derivative · entry 11

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,000

Underlying: Common Stock · 754 shares

Expires 2021-03-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: Stock options were granted on 3/24/2011, vested equally over a three-year period, and were fully vested on 4/1/2014.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 SaleCommon Stock 2,500 $46.38 $115,950.00
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 5

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,841

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.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 SaleCommon Stock 8,133 $45.79 $372,410.07
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 4

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,341

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.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 1,765 $13.86 $24,462.90
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,474

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 5,614 $11.21 $62,932.94
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,709

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 24, 2018 Filed May 25, 2018 18:53 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 754 $13.87 $10,457.98
Disclosure

SEC source: 0001179110-18-007545 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,095

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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April 02, 2018 Filed Apr 4, 2018 20:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 602 $40.68 $24,489.36
Disclosure

SEC source: 0001179110-18-005392 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,341

F1 · date: Forfeited shares are related to restricted stock units that vested on April 1, 2018 and were priced based on the average of the high and low stock price on April 2, 2018.

F5 · shares: Reflects forfeited shares related to the third and final vesting of restricted stock units granted on March 25, 2015.

F3 · price: Price is based on the average of the high and low stock price on April 2, 2018.

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April 02, 2018 Filed Apr 4, 2018 20:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 396 $40.68 $16,109.28
Disclosure

SEC source: 0001179110-18-005392 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,943

F1 · date: Forfeited shares are related to restricted stock units that vested on April 1, 2018 and were priced based on the average of the high and low stock price on April 2, 2018.

F4 · shares: Reflects forfeited shares related to the second vesting of restricted stock units granted on March 23, 2016.

F3 · price: Price is based on the average of the high and low stock price on April 2, 2018.

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April 02, 2018 Filed Apr 4, 2018 20:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 337 $40.68 $13,709.16
Disclosure

SEC source: 0001179110-18-005392 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,339

F1 · date: Forfeited shares are related to restricted stock units that vested on April 1, 2018 and were priced based on the average of the high and low stock price on April 2, 2018.

F2 · shares: Reflects forfeited shares related to the first vesting of restricted stock units granted on March 8, 2017.

F3 · price: Price is based on the average of the high and low stock price on April 2, 2018.

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March 07, 2018 Filed Mar 9, 2018 19:50 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 GrantEmployee Stock Option (Right to Buy) · Derivative 8,310 $0.00 Strike: $42.50 $0.00
Disclosure

SEC source: 0001179110-18-003943 · edgar.xml · derivative · entry 4

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,310

Underlying: Common Stock · 8,310 shares

Expires 2028-03-07

F4 · derivative.exercise_date: Stock options vest in equal installments over a three-year vesting schedule.

F5 · derivative.expiration_date: Stock options will expire at the earlier of ten years from the date of grant or three months following termination of employment.

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March 07, 2018 Filed Mar 9, 2018 19:50 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Tax withholdingCommon Stock 2,108 $42.50 $89,590.00
Disclosure

SEC source: 0001179110-18-003943 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,676

F3 · shares: Forfeited shares are related to dollar-denominated performance restricted stock units that vested on March 7, 2018 and were priced based on the closing price of the Company's common stock on March 7, 2018.

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March 07, 2018 Filed Mar 9, 2018 19:50 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 GrantCommon Stock 5,573 $0.00 $0.00
Disclosure

SEC source: 0001179110-18-003943 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,784

F2 · shares: Reflects dollar-denominated performance restricted stock units granted on March 25, 2015 that vested on March 7, 2018. These units vested as a result of the Company's 2015-2017 relative Total Shareholder Return and 2015-2017 Company average EPS - the applicable performance metrics.

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March 07, 2018 Filed Mar 9, 2018 19:50 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 GrantCommon Stock 2,551 $0.00 $0.00
Disclosure

SEC source: 0001179110-18-003943 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,211

F1 · shares: Each restricted stock unit granted on March 7, 2018 represents the right to receive one share of common stock and will vest in equal installments over a three-year vesting schedule.

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November 27, 2017 Filed Nov 27, 2017 22:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 5,000 $0.00 Strike: $13.86 $0.00
Disclosure

SEC source: 0001179110-17-014631 · edgar.xml · derivative · entry 6

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,901

Underlying: Common Stock · 5,000 shares

Expires 2023-03-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: Stock options were granted on 03/20/2013, vested equally over a three-year period, and were fully vested on 04/01/2016.

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November 27, 2017 Filed Nov 27, 2017 22:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionOption to Buy · Derivative 5,000 $0.00 Strike: $11.21 $0.00
Disclosure

SEC source: 0001179110-17-014631 · edgar.xml · derivative · entry 5

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,614

Underlying: Common Stock · 5,000 shares

Expires 2022-03-26

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: Stock options were granted on 03/26/2012, vested equally over a three-year period, and were fully vested on 04/01/2015.

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November 27, 2017 Filed Nov 27, 2017 22:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 SaleCommon Stock 15,179 $41.85 $635,241.15
Disclosure

SEC source: 0001179110-17-014631 · edgar.xml · nonDerivative · entry 4

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,660

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.

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November 27, 2017 Filed Nov 27, 2017 22:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 5,000 $13.86 $69,300.00
Disclosure

SEC source: 0001179110-17-014631 · edgar.xml · nonDerivative · entry 3

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,839

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 27, 2017 Filed Nov 27, 2017 22:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 Exercise / conversionCommon Stock 5,000 $11.21 $56,050.00
Disclosure

SEC source: 0001179110-17-014631 · edgar.xml · nonDerivative · entry 2

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,839

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 09, 2017 Filed Nov 27, 2017 22:20 UTC COMFORT SYSTEMS USA INC FIX · Entity 3020 GiftCommon Stock 75 $0.00 $0.00
Disclosure

SEC source: 0001179110-17-014631 · edgar.xml · nonDerivative · entry 1

Trent T McKenna · CIK 0001373205 · SrVP, General Counsel and Secy

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,839

F1 · kind: This transaction represents a charitable donation.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.