13F reference period
Q2 2026
Security Snapshot
COMFORT SYSTEMS USA INC - COMMON STOCK (FIX) Institutional Ownership
CUSIP: 199908104
13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026
Institutions Reporting
1,355
Shares (Excl. Options)
32.66M
Full value: 32,661,651 · shares · 30 Jun 2026Price
$1981.95
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / COMMON STOCK
- Symbol
- FIX on NYSE
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 32,661,651
- Total 13F value
- $64,622,796,639
- Portfolio coverage rank
- 0.04%
- Share change
- +161,329
- Value change
- +$634,855,528
- Number of holders
- 1,355
- Shares outstanding
- 35,354,100
- SEC-reported price per share
- $1654.09
- Insider filing price
- $1654.09
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- FIX - COMFORT SYSTEMS USA INC - COMMON STOCK is tracked under CUSIP 199908104.
- 1355 institutions reported positions in Q2 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 1,204 to 1,355 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$44.65B
Full value: $44,653,184,722 · USD · 31 Mar 2026.$64.62B
Full value: $64,622,796,639 · USD · 30 Jun 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 1355 institutions filings for Q2 2026.
Security key
199908104
13F reference period
Q2 2026
13F holders
1,355
13D/G owners
5
CIK / CUSIP context first
Open Q2 2026 holders
FIX full holder history
COMFORT SYSTEMS USA INC SEC filings
COMFORT SYSTEMS USA INC company facts
COMFORT SYSTEMS USA INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 199908104:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
FIX
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 8.3% | -23% | $2,722,408,972 | -$827,736,455 | 2,917,000 | -23% | BlackRock, Inc. | 31 Dec 2025 |
| VANGUARD CAPITAL MANAGEMENT LLC | 7.5% | $3,633,102,750 | 2,634,611 | Vanguard Capital Management | 31 Mar 2026 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4% | $2,607,913,170 | 1,891,176 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| Capital World Investors | 4.7% | -8% | $1,693,537,589 | -$163,908,117 | 1,640,532 | -8.8% | Capital World Investors | 31 Dec 2025 |
| FMR LLC | 4.1% | -26% | $2,054,242,542 | -$627,110,827 | 1,449,518 | -23% | FMR LLC | 31 Mar 2026 |
As of 30 Jun 2026,
1,355
institutional investors reported holding
shares of
COMFORT SYSTEMS USA INC - COMMON STOCK (FIX).
This represents
92%
of the company’s total
outstanding shares.
32.66M
Full value: 32,661,651 · shares · 30 Jun 202635.35M
Full value: 35,354,100 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
56%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9.6% | 3,397,683 | -3.3% | 0.1% | $6,734,036,999 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.5% | 2,297,509 | +0.51% | 0.1% | $4,553,547,963 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.3% | 1,866,170 | -0.8% | 0.17% | $3,698,655,631 |
| FMR LLC | 4.7% | 1,659,799 | +15% | 0.14% | $3,289,636,511 |
| STATE STREET CORP | 4.3% | 1,537,139 | +4.4% | 0.09% | $3,046,532,641 |
| GEODE CAPITAL MANAGEMENT, LLC | 3.3% | 1,151,350 | -7% | 0.12% | $2,285,380,443 |
| AQR CAPITAL MANAGEMENT LLC | 3% | 1,059,017 | -5.1% | 0.73% | $2,084,632,305 |
| JPMORGAN CHASE & CO | 2.4% | 838,417 | -5.8% | 0.1% | $1,633,817,208 |
| Capital World Investors | 2% | 720,244 | -17% | 0.17% | $1,427,487,596 |
| Invesco Ltd. | 1.9% | 658,314 | +8.5% | 0.1% | $1,304,744,562 |
| NORGES BANK | 1.3% | 471,564 | 0.09% | $934,616,270 | |
| MORGAN STANLEY | 1.2% | 430,085 | -6.5% | 0.05% | $852,413,430 |
| FIRST TRUST ADVISORS LP | 1.1% | 375,090 | -9.8% | 0.44% | $743,408,316 |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1% | 355,433 | -43% | 2.3% | $704,451,409 |
| FEDERATED HERMES, INC. | 0.97% | 341,485 | +28% | 0.97% | $676,806,196 |
| NORTHERN TRUST CORP | 0.96% | 340,992 | +3.6% | 0.08% | $675,829,093 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 0.92% | 324,671 | +101% | 0.06% | $643,483,000 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.84% | 297,845 | +3.5% | 0.08% | $590,313,898 |
| Amundi | 0.83% | 292,904 | +114% | 0.14% | $580,521,023 |
| DIMENSIONAL FUND ADVISORS LP | 0.81% | 285,445 | +2% | 0.1% | $565,660,742 |
| GOLDMAN SACHS GROUP INC | 0.76% | 268,240 | +9.9% | 0.06% | $531,638,900 |
| Value Aligned Research Advisors, LLC | 0.69% | 243,607 | +14% | 2.9% | $482,816,894 |
| DEUTSCHE BANK AG\ | 0.63% | 223,896 | -7% | 0.13% | $443,750,678 |
| FRANKLIN RESOURCES INC | 0.63% | 222,969 | +9.6% | 0.1% | $441,911,522 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.63% | 221,703 | -12% | 0.19% | $439,404,261 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
51
Headline period
Q2 2026
Rows shown
1-25 of 51
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 1,340,734 | $2,134,443,327 | -$114,191,860 | $1654.09 | 378 |
| 2026 Q2 | 32,661,651 | $64,622,796,639 | +$634,855,528 | $1981.95 | 1,355 |
| 2026 Q1 | 32,536,806 | $44,653,184,722 | -$1,027,349,994 | $1378.99 | 1,204 |
| 2025 Q4 | 33,277,940 | $31,075,453,612 | +$16,437,341 | $933.29 | 1,035 |
| 2025 Q3 | 33,234,396 | $27,409,511,294 | -$274,288,848 | $825.18 | 880 |
| 2025 Q2 | 33,835,735 | $18,142,945,405 | +$370,208,176 | $536.21 | 747 |
| 2025 Q1 | 33,356,089 | $10,753,206,129 | -$315,763,077 | $322.33 | 623 |
| 2024 Q4 | 33,890,447 | $14,373,369,770 | +$136,178,061 | $424.06 | 664 |
| 2024 Q3 | 33,328,804 | $13,016,134,643 | -$457,859,245 | $390.35 | 586 |
| 2024 Q2 | 34,333,364 | $10,442,773,084 | -$56,142,939 | $304.12 | 551 |
| 2024 Q1 | 34,540,299 | $10,972,735,647 | +$63,750,708 | $317.71 | 496 |
| 2023 Q4 | 34,706,835 | $7,137,905,010 | -$35,628,060 | $205.67 | 441 |
| 2023 Q3 | 34,881,070 | $5,945,291,333 | +$130,702,181 | $170.41 | 397 |
| 2023 Q2 | 34,090,706 | $5,597,234,493 | -$30,152,115 | $164.20 | 374 |
| 2023 Q1 | 34,197,001 | $4,990,815,197 | +$64,279,280 | $145.96 | 343 |
| 2022 Q4 | 33,947,753 | $3,907,238,742 | -$22,085,083 | $115.08 | 332 |
| 2022 Q3 | 34,163,132 | $3,325,741,721 | -$22,365,377 | $97.33 | 283 |
| 2022 Q2 | 34,416,663 | $2,861,756,977 | -$10,608,021 | $83.15 | 262 |
| 2022 Q1 | 34,660,608 | $3,088,369,820 | +$39,714,108 | $89.01 | 267 |
| 2021 Q4 | 34,137,473 | $3,374,735,183 | +$42,008,370 | $98.94 | 279 |
| 2021 Q3 | 33,587,925 | $2,396,907,873 | +$3,049,751 | $71.32 | 258 |
| 2021 Q2 | 33,473,221 | $2,636,858,136 | -$41,974,808 | $78.79 | 275 |
| 2021 Q1 | 34,042,263 | $2,545,994,750 | -$2,632,366 | $74.77 | 245 |
| 2020 Q4 | 34,205,978 | $1,801,605,410 | +$20,115,237 | $52.66 | 242 |
| 2020 Q3 | 33,861,305 | $1,744,642,583 | -$41,304,613 | $51.51 | 226 |