COMFORT SYSTEMS USA INC Insider Trading Activity
Every SEC Form 4 insider transaction reported for COMFORT SYSTEMS USA INC (FIX), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are FIX insiders buying or selling?
In the last 12 months, COMFORT SYSTEMS USA INC insiders reported 0 open-market purchases ($0) and 27 sales ($185.2M) — net selling of $185.2M. Since February 2018, Trabud has recorded 167 Form 4 filings for FIX: 26 buys ($3.8M) and 141 sells ($351.9M).
Source: SEC EDGAR Form 4
What stands out
- No COMFORT SYSTEMS USA INC insider made an open-market purchase in the last 12 months; the 27 reported open-market sales totaled $185.2M.
Key Statistics (February 2018 – Aug 27, 2026)
Total Form 4 filings
167
SEC EDGAR
Insider filers
16
Insider buys (26)
$3.8M
Insider sells (141)
$351.9M
Insider sentiment
Net sellingNet insider flow of $348.1M in net selling since February 2018, and $185.2M in net selling over the last 12 months.
Recent FIX insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 27, 2026 | Brian E. Lane | CHIEF EXECUTIVE OFF. | Sale | 16.0K | $1608.21 | $25.8M | SEC ↗ |
| Aug 18, 2026 | William George III | CHIEF FINANCIAL OFFICER | Sale | 2.6K | $1859.65 | $4.7M | SEC ↗ |
| Aug 12, 2026 | Franklin Myers | Director | Sale | 7.5K | $1692.31 | $12.7M | SEC ↗ |
| Jun 26, 2026 | Franklin Myers | Director | Sale | 6.7K | $1954.47 | $13.1M | SEC ↗ |
| May 28, 2026 | Rhoman J Hardy | Director | Sale | 342 | $1900.08 | $649.8K | SEC ↗ |
| May 12, 2026 | William George III | CHIEF FINANCIAL OFFICER | Sale | 5.0K | $1962.73 | $9.8M | SEC ↗ |
| May 11, 2026 | Julie Shaeff | CHIEF ACCOUNTING OFFICER | Sale | 1.1K | $2000.37 | $2.2M | SEC ↗ |
| May 8, 2026 | Franklin Myers | Director | Sale | 4.5K | $1902.57 | $8.6M | SEC ↗ |
| May 6, 2026 | Brian E. Lane | CHIEF EXECUTIVE OFF. | Sale | 11.1K | $1969.84 | $21.9M | SEC ↗ |
| May 1, 2026 | Pablo G. Mercado, | Director | Sale | 500 | $1779.78 | $889.9K | SEC ↗ |
| Apr 30, 2026 | SANDBROOK WILLIAM J | Director | Sale | 1.5K | $1732.67 | $2.6M | SEC ↗ |
| Mar 5, 2026 | Terrence Reed | SVP & CHRO | Sale | 1.8K | $1419.80 | $2.5M | SEC ↗ |
| Mar 5, 2026 | Darcy Anderson | Director | Sale | 4.5K | $1369.74 | $6.2M | SEC ↗ |
| Mar 4, 2026 | Julie Shaeff | CHIEF ACCOUNTING OFFICER | Sale | 2.3K | $1382.15 | $3.2M | SEC ↗ |
| Feb 27, 2026 | Franklin Myers | Director | Sale | 8.6K | $1472.56 | $12.7M | SEC ↗ |
| Feb 26, 2026 | Brian E. Lane | PRESIDENT/CHIEF EXECUTIVE OFF. | Sale | 9.4K | $1453.12 | $13.6M | SEC ↗ |
| Feb 26, 2026 | SANDBROOK WILLIAM J | Director | Sale | 2.5K | $1443.32 | $3.6M | SEC ↗ |
| Feb 24, 2026 | Pablo G. Mercado, | Director | Sale | 500 | $1405.00 | $702.5K | SEC ↗ |
| Feb 24, 2026 | Constance Ellen Skidmore | Director | Sale | 1.0K | $1425.00 | $1.4M | SEC ↗ |
| Feb 24, 2026 | William George III | CHIEF FINANCIAL OFFICER | Sale | 9.0K | $1434.97 | $12.9M | SEC ↗ |
| Dec 5, 2025 | Laura Finley Howell | SVP & GENERAL COUNSEL | Sale | 1.0K | $996.16 | $996.2K | SEC ↗ |
| Dec 3, 2025 | William George III | CHIEF FINANCIAL OFFICER | Sale | 4.4K | $958.88 | $4.2M | SEC ↗ |
| Nov 25, 2025 | Brian E. Lane | PRESIDENT/CHIEF EXECUTIVE OFF. | Sale | 7.2K | $947.98 | $6.8M | SEC ↗ |
| Nov 3, 2025 | Darcy Anderson | Director | Sale | 4.0K | $958.72 | $3.8M | SEC ↗ |
| Oct 31, 2025 | Herman E Bulls | Director | Sale | 2.0K | $1013.62 | $2.0M | SEC ↗ |
Showing the 25 most recent of 167 Form 4 filings for COMFORT SYSTEMS USA INC.
Most active FIX insiders
- Franklin Myers26 filings
- Brian E. Lane23 filings
- William George III20 filings
- Vance W Tang15 filings
- Alan Krusi13 filings
Ask anything about FIX insider activity
Use Trabud's AI agent to query COMFORT SYSTEMS USA INC's Form 4 history in plain English — "Show me FIX CEO purchases this year" or compare it against any other ticker.
Open the AI agentFIX insider trading FAQ
Are COMFORT SYSTEMS USA INC insiders buying or selling?
In the last 12 months, COMFORT SYSTEMS USA INC insiders reported 0 open-market purchases ($0) and 27 sales ($185.2M) — net selling of $185.2M. Since February 2018, Trabud has recorded 167 Form 4 filings for FIX: 26 buys ($3.8M) and 141 sells ($351.9M). Over the full record that is net selling of $348.1M.
How many insiders trade FIX stock?
16 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for COMFORT SYSTEMS USA INC. The most recent filing was accepted on Aug 27, 2026.
Where does Trabud get FIX insider trading data?
All FIX insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.