| $247M | ||
| $203M | ||
| $40M | ||
| $21M | ||
| $18M | ||
| $18M |
Buys | $0 | 0 | 0 |
Sells | $158,574,527 | 37 | 100 |
| Hardy Rhoman J | director | 0 | $0 | 1 | $649,827 | $-649,827 |
| Howell Laura Finley | SVP & GENERAL COUNSEL | 0 | $0 | 1 | $996,163 | $-996,163 |
| Skidmore Constance Ellen | director | 0 | $0 | 1 | $1.43M | $-1.43M |
| Reed Terrence | SVP & CHRO | 0 | $0 | 2 | $2.54M | $-2.54M |
| Trent T McKenna | EVP & CHIEF OPERATING OFFICER | 0 | $0 | 1 | $3.15M | $-3.15M |
| Mercado, Pablo G. | director | 0 | $0 | 4 | $4.86M | $-4.86M |
| BULLS HERMAN E | director | 0 | $0 | 3 | $5.41M | $-5.41M |
| Shaeff Julie | CHIEF ACCOUNTING OFFICER | 0 | $0 | 3 | $6.37M | $-6.37M |
| SANDBROOK WILLIAM J | director | 0 | $0 | 5 | $7.77M | $-7.77M |
| ANDERSON DARCY | director | 0 | $0 | 3 | $14.05M | $-14.05M |
| MYERS FRANKLIN | CHAIRMAN OF THE BOARD | 0 | $0 | 4 | $29.39M | $-29.39M |
| GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | 0 | $0 | 5 | $32.76M | $-32.76M |
| Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF. | 0 | $0 | 4 | $49.2M | $-49.2M |
Comfort Systems USA, Inc., together with its subsidiaries, provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services for the mechanical and electrical services industry in the United States. It operates through two segments: Mechanical and Electrical. The company offers heating, ventilation, and air conditioning systems, as well as plumbing, electrical, piping and controls, off-site construction, monitoring, and fire protection. It also involved in the design, engineering, integration, installation, and start-up of mechanical, electrical, and plumbing (MEP) and related systems in new buildings; and renovation, expansion, maintenance, monitoring, repair, and replacement of MEP systems in existing buildings. In addition, the company provides remote monitoring of power usage, temperature, pressure, humidity and air flow for MEP and other building systems. It serves building owners and developers, general contractors, architects, consulting engineers, and property managers in the commercial, industrial, and institutional MEP markets. Comfort Systems USA, Inc. was founded in 1917 and is headquartered in Houston, Texas.
Over the last 12 months, insiders at Comfort Systems USA, Inc. have bought $0 and sold $158.57M worth of Comfort Systems USA, Inc. stock.
On average, over the past 5 years, insiders at Comfort Systems USA, Inc. have bought $75,275 and sold $54.32M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 784 shares for transaction amount of $149,978 was made by Hardy Rhoman J (director) on 2023‑12‑06.
| 2026-05-27 | Sale | Hardy Rhoman J | director | 342 0.001% | $1,900.08 | $649,827 | -2.77% | |
| 2026-05-11 | Sale | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | 1,000 0.0028% | $2,020.96 | $2.02M | -8.07% | |
| 2026-05-11 | Sale | Shaeff Julie | CHIEF ACCOUNTING OFFICER | 1,123 0.0031% | $2,000.37 | $2.25M | -8.07% | |
| 2026-05-08 | Sale | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | 4,000 0.0113% | $1,948.17 | $7.79M | -4.17% | |
| 2026-05-07 | Sale | MYERS FRANKLIN | director | 4,500 0.0125% | $1,902.57 | $8.56M | -3.05% | |
| 2026-05-05 | Sale | Lane Brian E. | CHIEF EXECUTIVE OFF. | 11,113 0.0316% | $1,969.84 | $21.89M | -3.61% | |
| 2026-04-30 | Sale | Mercado, Pablo G. | director | 500 0.0015% | $1,779.78 | $889,890 | +2.95% | |
| 2026-04-29 | Sale | SANDBROOK WILLIAM J | director | 1,500 0.0043% | $1,732.67 | $2.6M | +9.81% | |
| 2026-03-03 | Sale | ANDERSON DARCY | director | 4,500 0.0122% | $1,369.74 | $6.16M | +20.62% | |
| 2026-03-03 | Sale | Shaeff Julie | CHIEF ACCOUNTING OFFICER | 2,287 0.0062% | $1,382.15 | $3.16M | +20.62% | |
| 2026-03-03 | Sale | Reed Terrence | SVP & CHRO | 1,116 0.0031% | $1,397.33 | $1.56M | +20.62% | |
| 2026-02-25 | Sale | Lane Brian E. | PRESIDENT/CHIEF EXECUTIVE OFF. | 9,365 0.0266% | $1,453.12 | $13.61M | +13.84% | |
| 2026-02-25 | Sale | MYERS FRANKLIN | director | 8,636 0.0249% | $1,472.56 | $12.72M | +13.84% | |
| 2026-02-24 | Sale | Skidmore Constance Ellen | director | 1,000 0.0029% | $1,425.00 | $1.43M | +12.44% | |
| 2026-02-24 | Sale | SANDBROOK WILLIAM J | director | 2,500 0.007% | $1,443.32 | $3.61M | +12.44% | |
| 2026-02-24 | Sale | Reed Terrence | SVP & CHRO | 671 0.0019% | $1,457.17 | $977,761 | +12.44% | |
| 2026-02-23 | Sale | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | 9,000 0.0259% | $1,434.97 | $12.91M | +16.77% | |
| 2026-02-23 | Sale | Mercado, Pablo G. | director | 500 0.0014% | $1,405.00 | $702,500 | +16.77% | |
| 2025-12-04 | Sale | Howell Laura Finley | SVP & GENERAL COUNSEL | 1,000 0.0028% | $996.16 | $996,163 | +38.47% | |
| 2025-12-01 | Sale | GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | 4,370 0.0124% | $958.88 | $4.19M | +43.78% |
| Lane Brian E. | CHIEF EXECUTIVE OFF. | 161089 0.4576% | $297.04M | 0 | 29 | |
| MYERS FRANKLIN | director | 68983 0.196% | $127.2M | 53 | 11 | +11.4% |
| GEORGE WILLIAM III | CHIEF FINANCIAL OFFICER | 32804 0.0932% | $60.49M | 3 | 34 | +9.18% |
| BULLS HERMAN E | director | 30574 0.0869% | $56.38M | 5 | 15 | +10.99% |
| Trent T McKenna | EVP & CHIEF OPERATING OFFICER | 21639 0.0615% | $39.9M | 0 | 16 | |
| ANDERSON DARCY | director | 18035 0.0512% | $33.26M | 0 | 11 | |
| Shaeff Julie | CHIEF ACCOUNTING OFFICER | 12624 0.0359% | $23.28M | 0 | 20 | |
| Skidmore Constance Ellen | director | 12627 0.0359% | $23.28M | 0 | 13 | |
| Howell Laura Finley | SVP & GENERAL COUNSEL | 7938 0.0225% | $14.64M | 1 | 3 | +4.83% |
| SANDBROOK WILLIAM J | director | 7666 0.0218% | $14.14M | 2 | 7 | +12.27% |
| Mercado, Pablo G. | director | 3000 0.0085% | $5.53M | 2 | 10 | +29.09% |
| Reed Terrence | SVP & CHRO | 2834 0.0081% | $5.23M | 0 | 2 | |
| Hardy Rhoman J | director | 1890 0.0054% | $3.48M | 1 | 1 | +69.69% |
| TANNER THOMAS N | Senior Regional Vice President | 88910 0.2526% | $163.94M | 0 | 10 | |
| CHAMBERS NORMAN C | President | 87900 0.2497% | $162.08M | 2 | 0 | +55.76% |
| SCHULTZ JAMES H | director | 73393 0.2085% | $135.33M | 2 | 7 | +6.72% |
| HARTER STEVEN S | director | 55000 0.1562% | $101.42M | 0 | 16 | |
| WAGNER ROBERT D | director | 35000 0.0994% | $64.54M | 6 | 8 | <0.0001% |
| GIARDENELLI ALFRED J JR | director | 23516 0.0668% | $43.36M | 0 | 27 | |
| Krusi Alan | 16828 0.0478% | $31.03M | 1 | 25 | <0.0001% | |
| Murdy William F | director | 16222 0.0461% | $29.91M | 2 | 69 | +6.07% |
| Tang Vance W | director | 4998 0.0142% | $9.22M | 2 | 17 | +33.57% |
| Wallis-Lage Cindy L. | director | 3812 0.0108% | $7.03M | 1 | 0 | +22.86% |
$146,360,297 | 83 | 18.54% | $14.36B | |
Comfort Systems USA, Inc. (FIX) | $12,423,097 | 82 | 12.17% | $64.91B |
$5,568,930 | 52 | 20.88% | $6.61B | |
$5,380,723 | 42 | 11.83% | $6.64B | |
$6,293,100 | 35 | 8.49% | $6.18B | |
$6,149,287 | 33 | 16.96% | $14.47B | |
$5,768,238 | 28 | 9.68% | $9.74B | |
$6,916,464 | 26 | 5.35% | $14B | |
$2,310,211 | 21 | 25.25% | $104.31B | |
$3,369,084 | 20 | 26.12% | $27.08B | |
$679,543 | 18 | 14.89% | $36.4B | |
$28,280,941 | 16 | 80.64% | $28.75B | |
$5,371,437 | 13 | 40.99% | $6.25B | |
$762,123 | 11 | 27.28% | $6.94B | |
$4,524,998 | 9 | 27.77% | $18.19B | |
$10,775,365 | 8 | 25.16% | $9.14B | |
$688,964 | 8 | -1.96% | $7.24B | |
$499,380 | 3 | 11.43% | $11.31B | |
$83 | 2 | -17.27% | $8.43B |
| Increased Positions | 614 | +65.11% | 5M | +14.39% |
| Decreased Positions | 425 | -45.07% | 5M | -15.97% |
| New Positions | 257 | New | 868,455 | New |
| Sold Out Positions | 83 | Sold Out | 546,941 | Sold Out |
| Total Postitions | 1,132 | +20.04% | 33M | -1.59% |
| Blackrock, Inc. | $3.99M | 11.37% | 3.98M | +96,388 | +2.48% | 2025-09-30 |
| Vanguard Group Inc | $3.7M | 10.53% | 3.68M | -87,859 | -2.33% | 2025-09-30 |
| Fmr Llc | $1.9M | 5.41% | 1.89M | +321,531 | +20.47% | 2025-09-30 |
| Capital World Investors | $1.81M | 5.14% | 1.8M | -427,843 | -19.21% | 2025-09-30 |
| Invesco Ltd. | $1.07M | 3.04% | 1.06M | +73,727 | +7.44% | 2025-09-30 |
| State Street Corp | $1.06M | 3.01% | 1.05M | -20,221 | -1.88% | 2025-09-30 |
| Geode Capital Management, Llc | $856,575.00 | 2.44% | 853,468 | +31,571 | +3.84% | 2025-09-30 |
| Aqr Capital Management Llc | $838,601.00 | 2.39% | 835,560 | +53,125 | +6.79% | 2025-09-30 |
| Westfield Capital Management Co Lp | $836,228.00 | 2.38% | 833,195 | -103,217 | -11.02% | 2025-09-30 |
| Jpmorgan Chase & Co | $737,193.00 | 2.1% | 734,519 | +197,613 | +36.81% | 2025-09-30 |