Who owns FIX?
Institutional ownership of Comfort Systems USA Inc. from Form 13F, Q2 2026
1,348 institutional managers reported holding Comfort Systems USA Inc. (FIX) in Form 13F filings for Q2 2026, with 32,630,795 shares worth $64.5B. The largest reported holder was BlackRock, Inc. Managers that filed both quarters added a net 148,808 shares (+0.5%). 230 opened new positions and 80 sold out.
- Funds holding
- 1,348
- Value held
- $64.5B
- New / sold out
- 230 / 80
- Net shares, same filers
- +0.5%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of FIX
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| BlackRock, Inc. | $6.7B | 10.4% | 3,397,683 | Trimmed |
| Vanguard Capital Management LLC | $4.6B | 7.0% | 2,297,509 | Added |
| Vanguard Portfolio Management LLC | $3.7B | 5.7% | 1,866,170 | Trimmed |
| FMR LLC | $3.3B | 5.1% | 1,659,799 | Added |
| State Street Corp | $3.0B | 4.7% | 1,537,139 | Added |
| Geode Capital Management, LLC | $2.3B | 3.5% | 1,151,350 | Trimmed |
| AQR Capital Management LLC | $2.1B | 3.2% | 1,059,017 | Trimmed |
| JPMorgan Chase & Co | $1.6B | 2.6% | 838,417 | Trimmed |
| Capital World Investors | $1.4B | 2.2% | 720,244 | Trimmed |
| Invesco Ltd. | $1.3B | 2.0% | 658,314 | Added |
| Norges Bank | $935M | 1.4% | 471,564 | New |
| Morgan Stanley | $852M | 1.3% | 430,085 | Trimmed |
| First Trust Advisors LP | $743M | 1.1% | 375,090 | Trimmed |
| Westfield Capital Management Co LP | $704M | 1.1% | 355,433 | Trimmed |
| Federated Hermes, Inc. | $677M | 1.0% | 341,485 | Added |
| Northern Trust Corp | $676M | 1.0% | 340,992 | Added |
| Price T Rowe Associates Inc | $643M | 1.0% | 324,671 | Added |
| Charles Schwab Investment Management Inc | $590M | 0.9% | 297,845 | Added |
| Amundi | $581M | 0.9% | 292,904 | Added |
| Dimensional Fund Advisors LP | $566M | 0.9% | 285,445 | Added |
| Goldman Sachs Group Inc | $532M | 0.8% | 268,240 | Added |
| Value Aligned Research Advisors, LLC | $483M | 0.7% | 243,607 | Added |
| Deutsche Bank Ag\ | $444M | 0.7% | 223,896 | Trimmed |
| Franklin Resources Inc | $442M | 0.7% | 222,969 | Added |
| Massachusetts Financial Services Co | $440M | 0.7% | 220,776 | Added |
Share of 13F holdings is each fund's shares as a share of the 32,630,795 FIX shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Norges Bank New+$935M
- Massachusetts Financial Services Co Added+$440M
- FMR LLC Added+$417M
- Price T Rowe Associates Inc Added+$324M
- Amundi Added+$309M
- DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main Added+$244M
- American Century Companies Inc Added+$221M
- Arax Advisory Partners Added+$181M
- Wellington Management Group LLP Added+$170M
- Federated Hermes, Inc. Added+$148M
Biggest sellers in Q2 2026
- Westfield Capital Management Co LP Trimmed-$526M
- Capital International Investors Trimmed-$496M
- Hood River Capital Management LLC Sold out-$344M
- Capital World Investors Trimmed-$288M
- SG Americas Securities, LLC Trimmed-$245M
- BlackRock, Inc. Trimmed-$228M
- Fuller & Thaler Asset Management, Inc. Trimmed-$221M
- Castle Hook Partners LP Trimmed-$219M
- Clearbridge Investments, LLC Trimmed-$187M
- Geode Capital Management, LLC Trimmed-$173M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $7.1B and sold $6.5B; 488 added and 476 trimmed.
Schedule 13D and 13G filings on FIX
Owners of more than 5% must file within days, so these can be newer than the 13F data.
- 2025-11-05FMR LLC SCHEDULE 13G filed by Comfort Systems USA Inc.Schedule 13G
Questions about FIX ownership
- Who owns FIX stock?
- 1,348 institutional investment managers reported FIX positions in their Form 13F filings for Q2 2026, holding 32,630,795 shares worth $64.5B in total. BlackRock, Inc. reported the largest position.
- Are funds buying or selling FIX?
- In Q2 2026, 230 managers opened new FIX positions, 488 added, 476 trimmed and 80 sold out. Managers that filed in both quarters added a net 148,808 shares.
- How current is this FIX institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to FIX by CUSIP. Options are left out. FIX news and filings · FIX insider trades · Top funds