FIX
COMFORT SYSTEMS USA INC · Construction · Market cap $56.7B
Insiders sold $43.2M net in the last 90 days ·3 sellers, 0 buyers· latest Form 4 filed Aug 27, 2026
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$173.2M
reported sales (SEC code S)
Unique Insiders
12
in the rolling window
Latest filing
Aug 27, 2026
Lane Brian E.
COMFORT SYSTEMS USA INC (FIX) has 51 SEC Form 4 filings (84 transaction rows) in the rolling window, disclosed by 12 distinct insiders. Most recent filing: Aug 27, 2026.
Inside the rolling window, 12 insiders at COMFORT SYSTEMS USA INC reported no open-market purchases and 31 open-market sales totaling $173.2M. The most active filer is CHIEF FINANCIAL OFFICER GEORGE WILLIAM III with 5 filings. Insiders have net sold $101.7M over the trailing 6 months. The most recent open-market filing is a sale of 16,024 shares by CHIEF EXECUTIVE OFF. Lane Brian E., dated Aug 26, 2026, worth $25.8M.
- Industry:Engineering & Construction
- CEO:Brian E. Lane
- Employees:22,700
- HQ:Houston, TX, US
- IPO:1997-06-27
| Source | |||||||
|---|---|---|---|---|---|---|---|
Lane Brian E.First in 4 months | CHIEF EXECUTIVE OFF. | Sale | 16,024 | $25.8M | Aug 27 | -0.3% | SEC ↗ |
GEORGE WILLIAM IIIFirst in 3 months | CHIEF FINANCIAL OFFICER | Sale | 2,554 | $4.7M | Aug 18 | -7.4% | SEC ↗ |
| Director | Sale | 3,500 | $5.9M | Aug 12 | -7.4% | SEC ↗ | |
| Director | Sale | 4,000 | $6.8M | Aug 12 | -7.4% | SEC ↗ | |
Hardy Rhoman JFirst filing | Director | Sale | 342 | $650K | May 28 | -13.2% | SEC ↗ |
| CHIEF FINANCIAL OFFICER | Sale | 4,000 | $7.8M | May 12 | -20.1% | SEC ↗ | |
| CHIEF FINANCIAL OFFICER | Sale | 1,000 | $2.0M | May 12 | -20.1% | SEC ↗ | |
| CHIEF ACCOUNTING OFFICER | Sale | 1,123 | $2.2M | May 11 | -20.8% | SEC ↗ | |
| Director | Sale | 4,500 | $8.6M | May 8 | -17.5% | SEC ↗ | |
| CHIEF EXECUTIVE OFF. | Sale | 11,113 | $21.9M | May 6 | -19.9% | SEC ↗ | |
| Director | Sale | 500 | $890K | May 1 | — | SEC ↗ | |
| Director | Sale | 1,500 | $2.6M | Apr 30 | — | SEC ↗ | |
Reed TerrenceFirst filing | SVP & CHRO | Sale | 671 | $978K | Mar 5 | — | SEC ↗ |
Reed TerrenceFirst filing | SVP & CHRO | Sale | 1,116 | $1.6M | Mar 5 | — | SEC ↗ |
ANDERSON DARCYFirst in 4 months | Director | Sale | 4,500 | $6.2M | Mar 5 | — | SEC ↗ |
Shaeff JulieFirst filing | CHIEF ACCOUNTING OFFICER | Sale | 2,287 | $3.2M | Mar 4 | — | SEC ↗ |
MYERS FRANKLINFirst in 4 months | Director | Sale | 8,636 | $12.7M | Feb 27 | — | SEC ↗ |
Lane Brian E.First in 3 months | PRESIDENT/CHIEF EXECUTIVE OFF. | Sale | 9,365 | $13.6M | Feb 26 | — | SEC ↗ |
SANDBROOK WILLIAM JFirst in 6 months | Director | Sale | 2,500 | $3.6M | Feb 26 | — | SEC ↗ |
| CHIEF FINANCIAL OFFICER | Sale | 9,000 | $12.9M | Feb 24 | — | SEC ↗ | |
Skidmore Constance EllenFirst filing | Director | Sale | 1,000 | $1.4M | Feb 24 | — | SEC ↗ |
Mercado, Pablo G.First in 4 months | Director | Sale | 500 | $703K | Feb 24 | — | SEC ↗ |
Howell Laura FinleyFirst filing | SVP & GENERAL COUNSEL | Sale | 1,000 | $996K | Dec 5 | — | SEC ↗ |
GEORGE WILLIAM IIIFirst filing | CHIEF FINANCIAL OFFICER | Sale | 4,370 | $4.2M | Dec 3 | — | SEC ↗ |
Lane Brian E.First filing | PRESIDENT/CHIEF EXECUTIVE OFF. | Sale | 7,158 | $6.8M | Nov 25 | — | SEC ↗ |
Earnings: last 7 quarters
Congress trading FIX 4 all-time
- RRep. Byron DonaldsPurchase$1,001 - $15,0002025-12-04
- RRep. Byron DonaldsPurchase$1,001 - $15,0002025-12-04
- RRep. Robert P. BresnahanSale$1,001 - $15,0002025-01-13
- DRep. Kurt SchraderPurchase$1,001 - $15,0002022-01-20
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does FIX have?
COMFORT SYSTEMS USA INC (FIX) has 51 SEC Form 4 filings (84 transaction rows) in the rolling 365-day window, disclosed by 12 distinct insiders. Most recent filing: Aug 27, 2026.
When was the most recent SEC Form 4 filing for FIX?
The most recent Form 4 filing for FIX on Tracefour is dated Aug 27, 2026.
Who is the most active insider at FIX?
The most active SEC Form 4 filer at FIX in the rolling window is CHIEF FINANCIAL OFFICER GEORGE WILLIAM III, with 5 filings.
What is the net insider flow at FIX over the last 6 months?
Over the trailing 180 days, insiders at FIX have net sold $101.7M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at FIX in the current window?
Inside the rolling window, insiders at FIX bought $0 and sold $173.2M based on SEC Form 4 filings.
Can I get alerts for FIX insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at COMFORT SYSTEMS USA INC (FIX). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
COMFORT SYSTEMS USA INC is in the Construction sector.