Stocks › FIX
COMFORT SYSTEMS USA INC
FIX·NYSE·
United States·USD
United States·USD$1817.96
+104.89 (+6.12%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
FIX
COMFORT SYSTEMS USA INC · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
FIXS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of FIX by members of U.S. Congress · 64 on record · 3 in the last 12 months
Whale Activity
Position changes in FIX reported for 2026-06-30 by 34 tracked institutional filers
- Increased3
- New0
- Held0
- Decreased7
- Closed0
- No prior filing24
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 3.4M | $6.73B | decreased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.3M | $4.55B | increased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 1.9M | $3.70B | decreased |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 355.4K | $704.5M | — |
| FEDERATED HERMES, INC. | 341.5K | $676.8M | — |
| Value Aligned Research Advisors, LLC | 243.6K | $482.8M | — |
| Artisan Partners Limited Partnership | 202.1K | $400.6M | — |
| Allianz Asset Management GmbH | 188.0K | $372.5M | — |
| Point72 Asset Management, L.P. | 179.7K | $356.2M | decreased |
| ROYAL LONDON ASSET MANAGEMENT LTD | 141.0K | $279.5M | — |
| FULLER & THALER ASSET MANAGEMENT, INC. | 130.8K | $259.3M | — |
| AMF Tjanstepension AB | 109.6K | $217.2M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by FIX insiders, by quarter · Form 4
Recent Insider Transactions
1,417 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Lane Brian E.CHIEF EXECUTIVE OFF. · Director | Sale | −16.0K | $1608.21 | $25.8M | Aug 26, 2026 | Form 4 ↗ |
| GEORGE WILLIAM IIICHIEF FINANCIAL OFFICER | Sale | −2,554 | $1859.65 | $4.7M | Aug 17, 2026 | Form 4 ↗ |
| MYERS FRANKLINDirector · Director | Sale | −4,000 | $1693.92 | $6.8M | Aug 11, 2026 | Form 4 ↗ |
| MYERS FRANKLINDirector · Director | Sale | −3,500 | $1690.47 | $5.9M | Aug 10, 2026 | Form 4 ↗ |
| MYERS FRANKLINDirector | Sale | −6,700 | $1954.47 | $13.1M | Jun 24, 2026 | Form 4 ↗ |
| Hardy Rhoman JDirector | Sale | −342 | $1900.08 | $650K | May 27, 2026 | Form 4 ↗ |
| MYERS FRANKLINDirector | Gift | −273 | $0.00 | $0 | May 21, 2026 | Form 4 ↗ |
| Hardy Rhoman JDirector | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| Wallis-Lage Cindy L.Director | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| Kapoor GauravDirector | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| Skidmore Constance EllenDirector | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| Mercado, Pablo G.Director | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| SANDBROOK WILLIAM JDirector | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| MYERS FRANKLINDirector | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| BULLS HERMAN EDirector | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| ANDERSON DARCYDirector | Grant / award | +105 | $0.00 | $0 | May 18, 2026 | Form 4 ↗ |
| GEORGE WILLIAM IIICHIEF FINANCIAL OFFICER | Sale | −1,000 | $2020.97 | $2.0M | May 11, 2026 | Form 4 ↗ |
| Shaeff JulieCHIEF ACCOUNTING OFFICER | Sale | −1,123 | $2000.37 | $2.2M | May 11, 2026 | Form 4 ↗ |
| GEORGE WILLIAM IIICHIEF FINANCIAL OFFICER | Sale | −4,000 | $1948.17 | $7.8M | May 8, 2026 | Form 4 ↗ |
| MYERS FRANKLINDirector | Sale | −4,500 | $1902.57 | $8.6M | May 7, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding FIX · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.1M | $2.21B | 0.10% | Jun 30, 2026 |
| VANGUARD 500 INDEX FUND VANGUARD INDEX FUNDS | 912.3K | $1.81B | 0.11% | Jun 30, 2026 |
| VANGUARD MID-CAP INDEX FUND VANGUARD INDEX FUNDS | 762.7K | $1.51B | 0.67% | Jun 30, 2026 |
| iShares Core S&P 500 ETF iShares Trust | 482.8K | $957.0M | 0.11% | Jun 30, 2026 |
| SMALLCAP World Fund Inc | 445.7K | $883.3M | 0.93% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | 425.7K | $843.7M | 0.11% | Jun 30, 2026 |
| Fidelity 500 Index Fund Fidelity Concord Street Trust | 450.4K | $823.4M | 0.10% | May 31, 2026 |
| VANGUARD GROWTH INDEX FUND VANGUARD INDEX FUNDS | 400.5K | $793.9M | 0.21% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 405.5K | $559.2M | 0.34% | Mar 31, 2026 |
| VANGUARD MID-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 269.6K | $534.3M | 1.53% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list FIX's shares (CUSIP 199908104), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming COMFORT SYSTEMS USA INC as client
No lobbying filings found naming COMFORT SYSTEMS USA INC as the client.
Government Contracts
Federal awards to COMFORT SYSTEMS USA INC · USAspending
No federal contract awards found for COMFORT SYSTEMS USA INC.
U.S. Patents
Recent USPTO applications naming COMFORT SYSTEMS USA INC
No USPTO patent applications found for COMFORT SYSTEMS USA INC.
Annual Financials
From FIX's 10-K filings · XBRL
No annual XBRL figures on record for FIX. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in FIX's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 7.01, 9.01Reg FD disclosureAug 3, 2026
EDGAR ↗ - 8-K · Items 2.02, 8.01, 9.01Results of operations · Other eventsJul 23, 2026
EDGAR ↗ - 8-K · Items 5.02, 7.01, 9.01Officer / director change · Reg FD disclosureJun 22, 2026
EDGAR ↗ - 8-K · Items 5.07Shareholder voteMay 21, 2026
EDGAR ↗ - 8-K · Items 7.01, 9.01Reg FD disclosureMay 1, 2026
EDGAR ↗
About COMFORT SYSTEMS USA INC
From SEC EDGAR company records
Industry (SIC 1731)Electrical Work
SectorIndustrials
HeadquartersHOUSTON, TX
SEC CIK0001035983 ↗
Former namesCOMFORT SYSTEMS USA INC