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FIX Comfort Systems USA, Inc.
Insider figures are trailing 90 days, open-market Form 4 only. Institutional figures are the latest reported quarter. These windows are not simultaneous.
-$43.2M net selling - trailing 90 days
0 buyers - 3 unique sellers
Historical context: No open-market activity in Sep 2026 — insiders sold in 16 of the last 24 months
Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.
open-market Form 4 only - grants, exercises, tax withholding excluded. ~ derived from SEC-reported shares x price.
Institutional activity: not available - insufficient comparable institutions for the latest complete quarter.
Who is responsible
| Insider | Role | Net activity | Rows |
|---|---|---|---|
| Lane Brian E. | CHIEF EXECUTIVE OFF. | -~$25.8M | 1 |
| MYERS FRANKLIN | — | -~$12.7M | 2 |
| GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | -~$4.7M | 1 |
Transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| August 26, 2026 | Lane Brian E. | CHIEF EXECUTIVE OFF. | S | -16024 | 1608.2079 | ~$25.8M |
| August 17, 2026 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -2554 | 1859.6513 | ~$4.7M |
| August 11, 2026 | MYERS FRANKLIN | — | S | -4000 | 1693.9227 | ~$6.8M |
| August 10, 2026 | MYERS FRANKLIN | — | S | -3500 | 1690.4707 | ~$5.9M |
| June 24, 2026 | MYERS FRANKLIN | — | S | -6700 | 1954.47 | ~$13.1M |
| May 27, 2026 | Hardy Rhoman J | — | S | -342 | 1900.08 | ~$0.6M |
| May 11, 2026 | Shaeff Julie | CHIEF ACCOUNTING OFFICER | S | -1123 | 2000.37 | ~$2.2M |
| May 11, 2026 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -1000 | 2020.965 | ~$2.0M |
| May 8, 2026 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -4000 | 1948.171 | ~$7.8M |
| May 7, 2026 | MYERS FRANKLIN | — | S | -4500 | 1902.572 | ~$8.6M |
| May 5, 2026 | Lane Brian E. | CHIEF EXECUTIVE OFF. | S | -11113 | 1969.838 | ~$21.9M |
| April 30, 2026 | Mercado, Pablo G. | — | S | -500 | 1779.7801 | ~$0.9M |
| April 29, 2026 | SANDBROOK WILLIAM J | — | S | -1500 | 1732.6667 | ~$2.6M |
| March 3, 2026 | Shaeff Julie | CHIEF ACCOUNTING OFFICER | S | -2287 | 1382.1487 | ~$3.2M |
| March 3, 2026 | Reed Terrence | SVP & CHRO | S | -1116 | 1397.331 | ~$1.6M |
| March 3, 2026 | ANDERSON DARCY | — | S | -4500 | 1369.7418 | ~$6.2M |
| February 25, 2026 | MYERS FRANKLIN | — | S | -8636 | 1472.5605 | ~$12.7M |
| February 25, 2026 | Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF. | S | -9365 | 1453.1168 | ~$13.6M |
| February 24, 2026 | Reed Terrence | SVP & CHRO | S | -671 | 1457.17 | ~$1.0M |
| February 24, 2026 | SANDBROOK WILLIAM J | — | S | -2500 | 1443.3177 | ~$3.6M |
| February 24, 2026 | Skidmore Constance Ellen | — | S | -1000 | 1425 | ~$1.4M |
| February 23, 2026 | Mercado, Pablo G. | — | S | -500 | 1405 | ~$0.7M |
| February 23, 2026 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -9000 | 1434.972 | ~$12.9M |
| December 4, 2025 | Howell Laura Finley | SVP & GENERAL COUNSEL | S | -1000 | 996.1634 | ~$1.0M |
| December 1, 2025 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -4370 | 958.8785 | ~$4.2M |
| November 24, 2025 | Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF. | S | -7158 | 947.9806 | ~$6.8M |
| October 31, 2025 | ANDERSON DARCY | — | S | -4000 | 958.7222 | ~$3.8M |
| October 29, 2025 | BULLS HERMAN E | — | S | -2000 | 1013.6236 | ~$2.0M |
| October 29, 2025 | Mercado, Pablo G. | — | S | -2500 | 1005.4062 | ~$2.5M |
| October 29, 2025 | MYERS FRANKLIN | — | S | -5000 | 1006.6821 | ~$5.0M |
| September 10, 2025 | SANDBROOK WILLIAM J | — | S | -800 | 733.5583 | ~$0.6M |
| September 9, 2025 | SANDBROOK WILLIAM J | — | 2 reported sale rows | 700 | — | ~$0.5M |
| September 9, 2025 | SANDBROOK WILLIAM J | — | S | -100 | 706 | ~$71K |
| September 9, 2025 | SANDBROOK WILLIAM J | — | S | -600 | 708.97 | ~$0.4M |
| August 27, 2025 | BULLS HERMAN E | — | S | -3000 | 710 | ~$2.1M |
| August 25, 2025 | SANDBROOK WILLIAM J | — | S | -700 | 689.575 | ~$0.5M |
| August 22, 2025 | Mercado, Pablo G. | — | S | -1078 | 695.88 | ~$0.8M |
| August 12, 2025 | Shaeff Julie | CHIEF ACCOUNTING OFFICER | S | -1369 | 704.5 | ~$1.0M |
| August 8, 2025 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -8436 | 692.6014 | ~$5.8M |
| August 7, 2025 | Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF. | S | -10000 | 691.7439 | ~$6.9M |
| August 6, 2025 | MYERS FRANKLIN | — | S | -4500 | 683.5656 | ~$3.1M |
| July 31, 2025 | Trent T McKenna | EVP & CHIEF OPERATING OFFICER | S | -4400 | 716.6272 | ~$3.2M |
| June 9, 2025 | BULLS HERMAN E | — | S | -2500 | 500.006 | ~$1.3M |
| June 6, 2025 | ANDERSON DARCY | — | S | -8000 | 506.8236 | ~$4.1M |
| May 13, 2025 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -12500 | 470.1138 | ~$5.9M |
| May 12, 2025 | Skidmore Constance Ellen | — | S | -1000 | 452.9796 | ~$0.5M |
| May 7, 2025 | ANDERSON DARCY | — | S | -3000 | 431.663 | ~$1.3M |
| May 7, 2025 | Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF. | S | -15000 | 431.6583 | ~$6.5M |
| May 5, 2025 | Mercado, Pablo G. | — | S | -1800 | 436.1001 | ~$0.8M |
| May 1, 2025 | Tang Vance W | — | S | -500 | 422 | ~$0.2M |
| November 22, 2024 | Trent T McKenna | EVP & CHIEF OPERATING OFFICER | S | -4000 | 484.8138 | ~$1.9M |
| November 13, 2024 | Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF. | S | -15000 | 448.8792 | ~$6.7M |
| November 8, 2024 | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | S | -5436 | 459.725 | ~$2.5M |
| November 5, 2024 | Mercado, Pablo G. | — | S | -2500 | 409.4599 | ~$1.0M |
| October 30, 2024 | MYERS FRANKLIN | — | S | -12000 | 390.1789 | ~$4.7M |
| October 28, 2024 | Tang Vance W | — | S | -2700 | 390 | ~$1.1M |