Comfort Systems USA, Inc. (FIX) ownership: insiders 1% · institutions 94% (13F 2026-03-31). Insider activity, 90 days: 5 sales, 0 open-market buys. 5 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Vanguard | 4530880.00 | $6.25B | 12.9% | 2026-03-31 |
| BlackRock | 3512927.00 | $4.84B | 10.0% | 2026-03-31 |
| State Street | 1471879.00 | $2.03B | 4.2% | 2026-03-31 |
| FMR (Fidelity) | 1449517.00 | $2.00B | 4.1% | 2026-03-31 |
| Capital Group | 1411250.00 | $1.95B | 4.0% | 2026-03-31 |
| Geode Capital Management | 1238619.00 | $1.71B | 3.5% | 2026-03-31 |
| AQR Capital Management | 1116230.00 | $1.49B | 3.2% | 2026-03-31 |
| JPMorgan | 889891.00 | $1.13B | 2.5% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-26 | |
| Sell | null | 2026-08-17 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-06-24 | |
| Sell | null | 2026-05-27 | |
| Sell | null | 2026-05-21 | |
| Sell | null | 2026-05-18 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.