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Comfort Systems USA

XNYS · ELECTRICAL WORK

10 articles20 insider tx0 holders0 supply chain10 selling intent filings1 new insider

Research articles

Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.

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Recent insider activity

Insider net $ (monthly)open-market Form 4 only - grants, exercises, tax withholding excluded$50.0M$25.0M$0-$25.0M-$50.0M2024-10 -$5.7M2024-11 -$12.2M2024-12 $02025-01 $02025-02 $02025-03 $02025-04 $02025-05 -$15.1M2025-06 -$5.3M2025-07 -$3.2M2025-08 -$20.2M2025-09 -$1.1M2025-10 -$13.4M2025-11 -$6.8M2025-12 -$5.2M2026-01 $02026-02 -$46.0M2026-03 -$10.9M2026-04 -$3.5M2026-05 -$43.2M2026-06 -$13.1M2026-07 $02026-08 -$43.2M2026-09 $0Oct 24Dec 24Feb 25Apr 25Jun 25Aug 25Oct 25Dec 25Feb 26Apr 26Jun 26Aug 26~ derived from SEC-reported shares x price. Hatched: excluded (implausible price) or unpriced.

open-market Form 4 only - grants, exercises, tax withholding excluded

0 buyers - 3 unique sellers · Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.

Date Insider Title Type Shares Price Value
August 26, 2026 Lane Brian E. CHIEF EXECUTIVE OFF. SELL -16,024 $1,608 ~$25.8M
August 17, 2026 George William Iii CHIEF FINANCIAL OFFICER SELL -2,554 $1,860 ~$4.7M
August 11, 2026 Myers Franklin — SELL -4,000 $1,694 ~$6.8M
August 10, 2026 Myers Franklin — SELL -3,500 $1,690 ~$5.9M
June 24, 2026 Myers Franklin — SELL -6,700 $1,954 ~$13.1M
May 27, 2026 Hardy Rhoman J — SELL -342 $1,900 ~$0.6M
May 21, 2026 Myers Franklin — GIFT -273 — —
May 18, 2026 Myers Franklin — GRANT 105 — —
May 18, 2026 Bulls Herman E — GRANT 105 — —
May 18, 2026 Hardy Rhoman J — GRANT 105 — —
May 18, 2026 Kapoor Gaurav — GRANT 105 — —
May 18, 2026 Mercado, Pablo G. — GRANT 105 — —
May 18, 2026 Sandbrook William J — GRANT 105 — —
May 18, 2026 Skidmore Constance Ellen — GRANT 105 — —
May 18, 2026 Wallis-Lage Cindy L. — GRANT 105 — —
May 18, 2026 Anderson Darcy — GRANT 105 — —
May 11, 2026 Shaeff Julie CHIEF ACCOUNTING OFFICER SELL -1,123 $2,000 ~$2.2M
May 11, 2026 George William Iii CHIEF FINANCIAL OFFICER SELL -1,000 $2,021 ~$2.0M
May 8, 2026 George William Iii CHIEF FINANCIAL OFFICER SELL -4,000 $1,948 ~$7.8M
May 7, 2026 Myers Franklin — GIFT -51 — —

Insider Selling Intent (Form 144)

Date Filer Relationship Est. shares Filing
August 26, 2026 Brian E Lane — 16,024 SEC
August 17, 2026 George William Iii — 2,554 SEC
August 11, 2026 Franklin Myers — 4,000 SEC
August 10, 2026 Myers Franklin — 3,500 SEC
May 22, 2026 Hardy Rhoman J — 342 SEC
May 11, 2026 Shaeff Julie — 1,123 SEC
May 11, 2026 George William Iii — 1,000 SEC
May 8, 2026 George William Iii — 4,000 SEC
May 7, 2026 Myers Franklin — 4,500 SEC
May 5, 2026 Brian E Lane — 11,113 SEC

New Insiders (Form 3)

Date Insider Title Relationship Shares Filing
July 9, 2026 — — — — SEC
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