Form4insider filings, from the source

Company · CIK 0001035983 · SIC 1731 — Electrical Work · NYSE

COMFORT SYSTEMS USA INC · FIX

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $43.2M · 3net −$43.2M
$10k$10k$1M$1M$100M$100MbuyssalesJun 28Jul 13Jul 28Aug 13Aug 28Sep 13Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 26, 2026 SForm 4 →Aug 27, 4:30 pm EDTBrian E. LaneCHIEF EXECUTIVE OFF., Director16,024$1,608.21$25,769,923145,065−9.95%
Aug 17, 2026 SForm 4 →Aug 18, 6:00 pm EDTWilliam George IIICHIEF FINANCIAL OFFICER2,554$1,859.65$4,749,54930,250−7.79%
Aug 10, 2026 SForm 4 →Aug 12, 4:30 pm EDTFranklin MyersDirector7,500$1,692.31$12,692,3388,495−46.9%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.