FIX at a glance
Comfort Systems USA (FIX, SEC CIK 1035983) filed its latest 10-K annual report on February 19, 2026, a 10-Q quarterly report on July 23, 2026, an 8-K current report on August 3, 2026 and Form 4 insider filings as recently as August 27, 2026. SignalX summarizes each filing with AI and tracks the company's insider trades and institutional holders.
- For the fiscal year ended December 31, 2025 (FY2025), Comfort Systems USA (FIX) reported revenue of $9.1 billion (up 29.5% from FY2024) and net income of $1.0 billion. Diluted EPS was $28.88.
- As of June 30, 2026, 40 institutional investment managers tracked by SignalX reported holding Comfort Systems USA (FIX) shares worth $32.4 billion in 13F-HR filings.
- The most recent insider open-market sale reported on Form 4 was by Lane Brian E. on August 26, 2026 of 16,024 shares at $1608.21 per share.
- In the last 90 days, FIX insiders reported 0 open-market purchases ($0) and 4 open-market sales ($43.2M) on Form 4, a net sale of $43.2M.
Source: SEC EDGAR (XBRL financial data, 13F-HR and Form 4 filings).
- Revenue · FY2025
- $9.1B
- +29.5% vs prior year
- Insiders · 90 days
- 0 buys · 4 sells
- Net −$43.2M
- 13F holders
- 40 funds
- $32.4B · +0 vs prior quarter
- Latest 8-K
- Aug 3, 2026
- Item 7.01
AI 10-K Annual Report Analysis
Latest 10-K, fiscal year ended Dec 31, 2025
Risk Factors
- Legal risk: Compliance with Securities Exchange Act Rule 10b5-1 for share repurchases, limiting timing and method of stock buybacks
- Macroeconomic risk: Revenue dependence on one customer representing 12.8% of consolidated revenue in 2025 in mechanical segment
- Operational risk: Incomplete internal control integration for recent acquisitions comprising 7.0% of assets and 2.2% of revenues as of 2025 year-end
- Competitive risk: Mechanical segment faces ongoing demand for service and maintenance vs electrical segment mainly new installations with different skill sets
- Financial risk: Large stock repurchases, $217.9 million in 2025 at average $489.40 per share, increasing leverage and cash outflows
Management Discussion & Analysis
- Share repurchases 0.4M shares for $217.9M at $489.40/share average in 2025; total 10.9M shares repurchased at $50.15 average price
- Revolving credit facility borrowing capacity increased to $1.1B; $100M borrowings outstanding, $921M credit available as of Dec 31, 2025
- Interest expense $9.0M in 2025 vs $6.6M in 2024; includes $3.1M on notes to former owners and $3.8M on borrowings
- Notes to former owners $44.6M outstanding; principal payments $6.1M (2026), $24.2M (2027), $14.3M (2028)
- Management expects sufficient liquidity with positive net free cash flow for 27 years and significant borrowing capacity; potential risk from bonding capacity constraints impacting near-term revenue and profits
Business Overview
- Core business model not described in this year's filing text provided
- No new products, services, or segments introduced or emphasized in filing excerpt
- No strategic shifts or changes in competitive positioning mentioned
- No quantitative metrics such as employee count or R&D spend disclosed in text
- Filing defers key business and governance information to amendment or proxy statement by May 1, 2026
AI summary of the FIX 10-K filed . Generated from the filing text; verify against the original.View on SEC EDGARHow to read a 10-K
AI 10-Q Quarterly Report Analysis
Latest 10-Q, quarter ended Jun 30, 2026
Management Discussion & Analysis
- Revenue $3.27B, up 50.3% YoY from $2.17B
- Operating margin 17.1% vs 13.8%; gross margin 25.9% vs 23.5%
- Electrical segment strongest: revenue $969.0M, up 81.2% YoY
- Mechanical segment largest: revenue $2.30B, up 40.2% YoY
- Backlog $14.06B, up 73.1% YoY; demand expected high in 2026, with cost pressures and supply-chain delays persisting
Risk Factors
- No risk-factors section provided; supplied text covers equity repurchases and exhibits only
- Share repurchase authorization: 0.9 million shares remaining as of June 30, 2026
- Repurchase activity: 3,171 shares purchased during the quarter at $1,792.38 average price
- Securities compliance: no directors or officers adopted or terminated Rule 10b5-1 arrangements during the quarter
AI summary of the FIX 10-Q filed . Generated from the filing text; verify against the original.View on SEC EDGAR10-K vs 10-Q vs 8-K
AI 8-K Current Report Analysis
The most recent material events, by 8-K item
Item 7.01: Regulation FD Disclosure
- Investor presentation furnished as Exhibit 99.1 under Regulation FD
- Presentation contains forward-looking statements subject to material execution and business risks
Item EX-99.1: Item EX-99.1
- Q2 2026 revenue $3.27B, up from $2.17B; net income $441.6M, nearly doubling year over year
- Six-month revenue $6.13B and net income $812.0M, indicating substantial earnings momentum
Item 2.02: Results of Operations and Financial Condition
- Q2 2026 financial results reported for Comfort Systems USA
- Press release dated July 23, 2026 incorporated as Exhibit 99.1
Item 8.01: Other Events
- Quarterly dividend declared for Comfort Systems USA common stock
- Record date: August 13, 2026
Item EX-99.1: Item EX-99.1
- Q2 revenue $3.27B, up from $2.17B; net income $441.6M, or $12.53 diluted EPS
- Operating margin 17.1% versus 13.8%; gross margin 25.9% versus 23.5%, indicating stronger project profitability
Item 7.01: Regulation FD Disclosure
- Boilerplate Regulation FD disclaimer limiting liability under Exchange Act Section 18
- Disclosure not incorporated into other SEC filings unless expressly referenced
Item 5.02: Departure/Appointment of Directors or Principal Officers
- Craig Sasser promoted to Chief Operating Officer effective July 1, 2026
- Annual base salary set at $600,000 with target bonus opportunity of 90%
Item EX-99.1: Item EX-99.1
- Craig Sasser appointed Chief Operating Officer effective July 1, 2026, expanding executive oversight from regional operations
- Trent T. McKenna remains President, indicating continuity in the company’s top leadership structure
AI summaries of FIX 8-K current reports filed with the SEC. What 8-K item codes mean
SignalX for FIX
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Recent Insider Transactions (Form 4)
Latest reported trades by officers, directors and 10% owners
| Insider | Type | Date | Shares | Price |
|---|---|---|---|---|
| Lane Brian E. | Sell | Aug 26, 2026 | 16,024 | $1608.21 |
| GEORGE WILLIAM III | Sell | Aug 17, 2026 | 2,554 | $1859.65 |
| MYERS FRANKLIN | Sell | Aug 11, 2026 | 4,000 | $1693.92 |
| MYERS FRANKLIN | Sell | Aug 10, 2026 | 3,500 | $1690.47 |
| MYERS FRANKLIN | Sell | Jun 24, 2026 | 6,700 | $1954.47 |
| Hardy Rhoman J | Sell | May 27, 2026 | 342 | $1900.08 |
| MYERS FRANKLIN | G | May 21, 2026 | 273 | - |
| MYERS FRANKLIN | A | May 18, 2026 | 105 | - |
Financial SummaryXBRL
| Metric | FY2023 | FY2024 | FY2025 |
|---|---|---|---|
| Profitability | |||
| Revenue | - | $7.0B | $9.1B |
| Gross Profit | - | $1.5B | $2.2B |
| Operating Income | - | $749.4M | $1.3B |
| Net Income | - | $522.4M | $1.0B |
| Gross Margin | - | 21.0% | 24.1% |
| Op. Margin | - | 10.7% | 14.4% |
| Net Margin | - | 7.4% | 11.2% |
| Balance Sheet | |||
| Total Assets | $3.3B | $4.7B | $6.4B |
| Equity | $1.3B | $1.7B | $2.4B |
| ROE | - | 30.6% | 41.8% |
| Per Share | |||
| EPS | - | $14.60 | $28.88 |
| Cash Flow | |||
| Operating CF | - | $849.1M | $1.2B |
| CapEx | - | $111.1M | $154.9M |
Source: XBRL data in Comfort Systems USA (FIX)'s 10-K filings on SEC EDGAR, in USD. Compare across companies →
13F Fund Holdings: Quarterly Trend
Latest: Q2 2026Aggregate FIX share value held by 13F filers tracked by SignalX, by quarter.
Quarterly totals table
| Quarter | Funds | Total value |
|---|---|---|
| Q2 2026 | 40 | $32.37B |
| Q1 2026 | 40 | $22.12B |
| Q4 2025 | 39 | $14.95B |
| Q3 2025 | 39 | $14.47B |
| Q2 2025 | 37 | $8.65B |
| Q1 2025 | 31 | $3.91B |
| Q4 2024 | 28 | $4.45B |
| Q3 2024 | 28 | $1.93B |
- FMR LLC (Fidelity)+210.3K (+15%)
- T. Rowe Price Group+163.5K (+101%)
- State Street Corp+65.3K (+4%)
- Invesco Ltd+51.7K (+9%)
- Wells Fargo & Co+44.4K (+76%)
- BlackRock−115.2K (-3%)
- Millennium Management−66.9K (-65%)
- AQR Capital Management−57.2K (-5%)
- JPMorgan Chase & Co−51.5K (-6%)
- Bridgewater Associates LP−38.0K (-44%)
Source: 13F-HR filings on SEC EDGAR (aggregated from 282 fund-quarter rows). Reflects only 13F filers tracked by SignalX, not the full institutional ownership universe. How 13F filings work
FIX filing archive
AI analysis pages for each 10-K, 10-Q and 8-K
10-K annual reports
10-Q quarterly reports
Latest 2026 SEC Filings: 10-K, 10-Q, 8-K & Form 4
| Form | Filing date | Period | Analysis | SEC |
|---|---|---|---|---|
| 4 | Aug 27, 2026 | - | - | - |
| 4 | Aug 18, 2026 | - | - | - |
| 4 | Aug 12, 2026 | - | - | - |
| 8-K | Aug 3, 2026 | - | Analysis | - |
| 10-Q | Jul 23, 2026 | Jun 30, 2026 | Analysis | |
| 8-K | Jul 23, 2026 | - | Analysis | - |
| 4 | Jun 26, 2026 | - | - | - |
| 8-K | Jun 22, 2026 | - | Analysis | - |
| 4 | May 28, 2026 | - | - | |
| 4 | May 22, 2026 | - | - | |
| 8-K | May 21, 2026 | - | Analysis | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 19, 2026 | - | - | |
| 4 | May 12, 2026 | - | - | |
| 4 | May 11, 2026 | - | - | |
| 4 | May 8, 2026 | - | - | |
| 4 | May 6, 2026 | - | - | |
| 8-K | May 1, 2026 | - | Analysis | - |
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FIX SEC filings: frequently asked questions
Are FIX insiders buying or selling?
In the last 90 days, Comfort Systems USA (FIX) officers, directors and 10% owners reported no open-market purchases and 4 open-market sales worth $43.2 million by 3 insiders on Form 4. Many insider sales are pre-planned or for taxes, so purchases usually carry more information.
Which institutions hold FIX stock?
As of June 30, 2026, the largest Comfort Systems USA (FIX) holders among the 13F filers tracked by SignalX were BlackRock ($6.7 billion), Vanguard Capital Management LLC ($4.6 billion), Vanguard Portfolio Management LLC ($3.7 billion), FMR LLC (Fidelity) ($3.3 billion), State Street Corp ($3.0 billion). 13F-HR reports are filed up to 45 days after each quarter ends.
What was FIX's revenue in fiscal year 2025?
For the fiscal year ended December 31, 2025 (FY2025), Comfort Systems USA (FIX) reported revenue of $9.1 billion (up 29.5% from FY2024) and net income of $1.0 billion. Diluted EPS was $28.88. The figures come from the XBRL data in the 10-K.
What are the main risks in FIX's latest 10-K?
In the 10-K filed February 19, 2026, Comfort Systems USA (FIX) flagged: Legal risk: Compliance with Securities Exchange Act Rule 10b5-1 for share repurchases, limiting timing and method of stock buybacks. Macroeconomic risk: Revenue dependence on one customer representing 12.8% of consolidated revenue in 2025 in mechanical segment. (AI summary of the Risk Factors section.)
What did FIX report in its latest 8-K?
Comfort Systems USA (FIX) filed an 8-K on August 3, 2026 reporting Item 7.01 (Regulation FD Disclosure). Investor presentation furnished as Exhibit 99.1 under Regulation FD.
What are the latest FIX SEC filings?
Comfort Systems USA (FIX) filed its latest 10-K annual report on February 19, 2026, a 10-Q quarterly report on July 23, 2026, an 8-K current report on August 3, 2026 and a Form 4 insider filing on August 27, 2026.
What is FIX's SEC CIK number?
Comfort Systems USA (FIX)'s SEC Central Index Key (CIK) is 1035983. EDGAR lists every FIX filing under that number.
Ask anything about FIX
The research agent reads FIX's filings, financials, insider trades and 13F holders, then answers with sources.