Filing Flows › Comfort Systems USA (FIX) › Who owns the stock
Who owns Comfort Systems USA (FIX) stock
1,229 funds reported Comfort Systems USA (FIX) shares in their latest 13F filings, worth $64.2B in all. The largest holder is BlackRock ($6.7B). Last quarter 669 funds added to their stakes and 516 cut them. Members of Congress and other officials disclosed 3 trades (3 buys, 0 sales).
Largest holders (13F)
| Fund | Shares | Value | Change | Quarter |
|---|---|---|---|---|
| BlackRock | 3,397,683 | $6.7B | decrease | 2026-06-30 |
| Vanguard Capital Management LLC | 2,297,509 | $4.6B | increase | 2026-06-30 |
| Vanguard Group | 4,310,126 | $4.0B | increase | 2025-12-31 |
| Vanguard Portfolio Management LLC | 1,866,170 | $3.7B | decrease | 2026-06-30 |
| FMR LLC | 1,659,799 | $3.3B | increase | 2026-06-30 |
| State Street | 1,537,139 | $3.0B | increase | 2026-06-30 |
| Geode Capital Management, LLC | 1,151,350 | $2.3B | decrease | 2026-06-30 |
| AQR Capital Management LLC | 1,059,017 | $2.1B | decrease | 2026-06-30 |
| Capital World Investors | 720,244 | $1.4B | decrease | 2026-06-30 |
| Invesco | 658,314 | $1.3B | increase | 2026-06-30 |
| Morgan Stanley | 430,085 | $852M | decrease | 2026-06-30 |
| First Trust Advisors LP | 375,090 | $743M | decrease | 2026-06-30 |
| Westfield Capital Management Co LP | 355,433 | $704M | decrease | 2026-06-30 |
| Federated Hermes | 341,485 | $677M | increase | 2026-06-30 |
| Northern Trust | 340,992 | $676M | increase | 2026-06-30 |
Trades by Congress and other officials
| Date | Who | Trade | Amount |
|---|---|---|---|
| 2026-03-27 | Alan Armstrong | purchase | $1K–$15K |
| 2025-12-04 | Byron Donalds | purchase | $1K–$15K |
| 2025-12-04 | Byron Donalds | purchase | $1K–$15K |
Comfort Systems USA's latest quarter
Comfort Systems USA, Q3 2026: revenue $3.8B (+54% year over year), operating margin 16.6%, net earnings $489M, operating cash flow $1.0B. The chart follows the revenue to costs, profit and cash.
Questions
Who owns the most FIX stock?
By the latest 13F filings: BlackRock ($6.7B); Vanguard Capital Management LLC ($4.6B); Vanguard Group ($4.0B); Vanguard Portfolio Management LLC ($3.7B); FMR LLC ($3.3B).
Has Congress traded FIX stock?
Officials disclosed 3 trades on file: 3 buys and 0 sales. The latest: Alan Armstrong, purchase on 2026-03-27.
What is the short interest in FIX?
757,613 shares were sold short at the 2026-10-15 settlement, -10.87% of the float.
Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.