Comfort Systems USA, Inc. (FIX) Insider Trading
Over the last 3 months, FIX insiders made 0 open-market buys and 5 sales, a net sale of -$56.3M (SEC Form 4). Over the last 6 months, 941 institutions increased and 899 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
5
Net (3m)
-$56.3M
Insider trades by month Buys Sells
Feb
Mar
Apr
May
Jun
Aug
Context3-month price -15.8%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 27, 2026 | Lane Brian E.director, officer: CHIEF EXECUTIVE OFF. | Sell | 16,024 | $1608.21 |
| Aug 18, 2026 | GEORGE WILLIAM IIIofficer: CHIEF FINANCIAL OFFICER | Sell | 2,554 | $1859.65 |
| Aug 12, 2026 | MYERS FRANKLINdirector | Sell | 3,500 | $1690.47 |
| Aug 12, 2026 | MYERS FRANKLINdirector | Sell | 4,000 | $1693.92 |
| Jun 26, 2026 | MYERS FRANKLINdirector | Sell | 6,700 | $1954.47 |
| May 28, 2026 | Hardy Rhoman Jdirector | Sell | 342 | $1900.08 |
| May 19, 2026 | Wallis-Lage Cindy L.director | Grant | 105 | — |
| May 19, 2026 | Kapoor Gauravdirector | Grant | 105 | — |
| May 19, 2026 | Mercado, Pablo G.director | Grant | 105 | — |
| May 19, 2026 | BULLS HERMAN Edirector | Grant | 105 | — |
| May 19, 2026 | ANDERSON DARCYdirector | Grant | 105 | — |
| May 19, 2026 | Hardy Rhoman Jdirector | Grant | 105 | — |
| May 19, 2026 | MYERS FRANKLINdirector | Grant | 105 | — |
| May 19, 2026 | SANDBROOK WILLIAM Jdirector | Grant | 105 | — |
| May 19, 2026 | Skidmore Constance Ellendirector | Grant | 105 | — |
| May 12, 2026 | GEORGE WILLIAM IIIofficer: CHIEF FINANCIAL OFFICER | Sell | 1,000 | $2020.96 |
| May 12, 2026 | GEORGE WILLIAM IIIofficer: CHIEF FINANCIAL OFFICER | Sell | 4,000 | $1948.17 |
| May 11, 2026 | Shaeff Julieofficer: CHIEF ACCOUNTING OFFICER | Sell | 1,123 | $2000.37 |
| May 8, 2026 | MYERS FRANKLINdirector | Sell | 4,500 | $1902.57 |
| May 6, 2026 | Lane Brian E.director, officer: CHIEF EXECUTIVE OFF. | Sell | 11,113 | $1969.84 |
| May 1, 2026 | Mercado, Pablo G.director | Sell | 500 | $1779.78 |
| Apr 30, 2026 | SANDBROOK WILLIAM Jdirector | Sell | 1,500 | $1732.67 |
| Apr 3, 2026 | Reed Terrenceofficer: SVP & CHRO | Tax | 98 | $1429.60 |
| Apr 3, 2026 | Eslicker Rachel R.officer: SVP & GENERAL COUNSEL | Tax | 43 | $1429.60 |
| Apr 3, 2026 | Shaeff Julieofficer: CHIEF ACCOUNTING OFFICER | Tax | 87 | $1429.60 |
| Apr 3, 2026 | Trent T McKennaofficer: PRESIDENT/CHIEF OPERATING OFF. | Tax | 266 | $1429.60 |
| Apr 3, 2026 | Reed Terrenceofficer: SVP & CHRO | Tax | 93 | $1429.60 |
| Apr 3, 2026 | GEORGE WILLIAM IIIofficer: CHIEF FINANCIAL OFFICER | Tax | 297 | $1429.60 |
| Apr 3, 2026 | Lane Brian E.director, officer: CHIEF EXECUTIVE OFF. | Tax | 941 | $1429.60 |
| Apr 3, 2026 | Lane Brian E.director, officer: CHIEF EXECUTIVE OFF. | Tax | 1,146 | $1429.60 |
Source: FIX SEC Form 4 filings, latest Aug 27, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their FIX positions over the last 6 months (SEC Form 13F).
Increased
941
New positions
496
Reduced
899
Sold out
88
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 3.5M | May 13, 2026 |
| BlackRock, Inc. | Reduced | 3.4M | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 2.3M | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.3M | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 1.9M | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 1.9M | Aug 13, 2026 |
| FMR LLC | Increased | 1.7M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 1.5M | Aug 7, 2026 |
| STATE STREET CORP | Increased | 1.5M | May 15, 2026 |
| FMR LLC | Reduced | 1.4M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 1.2M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 1.2M | Aug 12, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1.1M | May 15, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 1.1M | Aug 14, 2026 |
| JPMORGAN CHASE & CO | Increased | 890K | May 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.