InsidersTradesSigma
Comfort Systems USA INC Stock: price and management transactions · United States · SEC (Form 4)
Follow the Comfort Systems USA INC stock price and the full insider trade history of the company, a publicly traded company based in United States. Shares trade on US US, under the supervision of SEC (Form 4). Operating in the Construction sector, Comfort Systems USA INC has published 205 reports. Market capitalisation: €61.3bn. The latest transaction was filed on 26 June 2026 (Cession). Among the most active insiders: GEORGE WILLIAM III. The full history is openly available.
205
Insider Decl.
0
Thresholds
€116,360
2 ops.
Buy Volume
€91m
66 ops.
Sell Volume
49Σ signal
Informational score on this market. Our backtest validates the signal only on 8 EU venues; elsewhere (notably US markets) insider buys historically invert or do not hold. Not a recommendation.
Fundamental score
Ranked 12,797 of 25,514 companies
51.8
score / 100
Value32
Quality72
FCF yld1.7%
Earn yld1.7%
EV/EBITDA41.4x
ROE53%
Gross mgn24%
Net mgn11%
Debt/EBITDA0.3x
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Sigma AI Analysis
Fundamental view, insider signal, bull and bear case, synthesis.
AI-generated analysis. Opinion, not investment advice. Not backtested. Built from public filings and financials. No price target, no buy or sell recommendation.
Last declaration on 26 June 2026
Declarations205 total
6,700 sharesCommon StockSEC:0001207002-26-000011:0
342 shares@ US$1,900.080.0017% mcap82.8% of flowCommon StockSEC:0001936828-26-000004:0
273 shares0Common StockSEC:0001207002-26-000009:0
105 shares0Common StockSEC:0001199361-26-000006:0
342 shares0Common StockSEC:0001415889-25-013757:0
342 shares0Common StockSEC:0001415889-25-013752:0
342 shares0Common StockSEC:0001415889-25-013756:0
342 shares0Common StockSEC:0001415889-25-013758:0
342 shares0Common StockSEC:0001415889-25-013751:0
342 shares0Common StockSEC:0001415889-25-013755:0
342 shares0Common StockSEC:0001415889-25-013753:0
342 shares0Common StockSEC:0001415889-25-013754:0
342 shares0Common StockSEC:0001415889-25-013750:0
1,000 shares0Common StockSEC:0001415889-25-012924:0
12,500 shares@ US$36.253.9% of flowCommon StockSEC:0001415889-25-012851:0
1,000 shares@ US$452.97968.5% of flowCommon StockSEC:0001415889-25-012764:0
15,000 shares@ US$431.658320.7% of flowCommon StockSEC:0001415889-25-012425:0
3,000 shares@ US$431.66320.2% of flowCommon StockSEC:0001415889-25-012422:0
1,800 shares@ US$436.100130.9% of flowCommon StockSEC:0001415889-25-012073:0
500 shares@ US$422.002.9% of flowCommon StockSEC:0001415889-25-011725:0
52 shares@ US$324.5521.6% of flowCommon StockSEC:0001415889-25-009878:0
297 shares@ US$324.550.9% of flowCommon StockSEC:0001415889-25-009875:0
210 shares@ US$324.551.4% of flowCommon StockSEC:0001415889-25-009876:0
941 shares@ US$324.551.0% of flowCommon StockSEC:0001415889-25-009874:0
84 shares@ US$324.551.4% of flowCommon StockSEC:0001415889-25-009879:0
25 of 205 declarations
About Comfort Systems USA INC
Comfort Systems USA Inc. (NYSE: FIX) is a U.S.-based building systems installation and service company headquartered in Houston, Texas, in the United States. For French-speaking investors, it is best understood as a specialist in building technical services, sitting at the intersection of construction, maintenance, retrofit work, and recurring service revenue. The company went public in June 1997 with the stated objective of becoming a nationwide provider of building systems installation and maintenance. Since then, it has expanded into a broad national platform made up of more than 50 operating companies across more than 184 locations in the United States. The business is organized into two core segments: mechanical and electrical. The mechanical segment includes HVAC installation and service, plumbing, process piping, building controls, and related technical systems. The electrical segment covers the installation and servicing of electrical systems for commercial, industrial, and institutional facilities. Comfort Systems USA also emphasizes modular construction, building automation, retrofit projects, and energy-efficiency solutions, which gives the group a mix of project-based revenue and more stable service activity tied to customer facilities and ongoing maintenance needs. From a competitive standpoint, Comfort Systems USA stands out in a highly fragmented industry. Many competitors are regional specialists or focused on a single trade, while Comfort Systems USA offers a national footprint and a multi-discipline platform. Its strategy combines local operating expertise with the scale benefits of a larger public company, allowing it to serve customers ranging from small businesses to Fortune 500 groups. Its end markets include schools, hospitals, office towers, industrial facilities, and other technically complex buildings that require installation, modernization, and continuous upkeep. Recent developments have reinforced the company’s strong operating momentum. In 2025, Comfort Systems USA reported record financial performance, with strong growth in revenue, earnings, and operating cash flow. At the end of the fourth quarter of 2025, backlog reached $11.94 billion, underscoring the strength of demand and project visibility. The company also completed targeted acquisitions in 2025, including electrical businesses in different U.S. regions, supporting both geographic expansion and service-line depth. For investors, FIX offers exposure to U.S. nonresidential building systems spending, energy-efficiency upgrades, and disciplined acquisition-led growth within the NYSE-listed market in the United States.
