COMFORT SYSTEMS USA INC
Total Trades
80
Buys
1
Sells
73
Largest Trade
$1M+
Insiders
15
Institutional Funds
897
Inst. Value
$1M+
Activist Filings
16
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Skidmore Constance Ellen | Director | SELL | $500K+ | 3K | $187.66 | Sep 11, 2023 |
| Howell Laura Finley | SVP & GENERAL COUN… | SELL | $100K–$500K | 1K | $187.59 | Sep 8, 2023 |
| MYERS FRANKLIN | Director | SELL | $1M+ | 30K | $184.85 | Sep 1, 2023 |
| Lane Brian E. | PRESIDENT/CHIEF EX… | SELL | $1M+ | 40K | $182.85 | Aug 30, 2023 |
| Shaeff Julie | CHIEF ACCOUNTING O… | SELL | $500K+ | 5K | $180.79 | Aug 10, 2023 |
| Tang Vance W | Director | SELL | $100K–$500K | 2K | $182.00 | Aug 8, 2023 |
| Skidmore Constance Ellen | Director | SELL | $100K–$500K | 3K | $159.94 | Jun 13, 2023 |
| Skidmore Constance Ellen | Director | SELL | $100K–$500K | 3K | $143.03 | Mar 13, 2023 |
| Tang Vance W | Director | SELL | $100K–$500K | 3K | $147.00 | Feb 27, 2023 |
| Wallis-Lage Cindy L. | Director | BUY | <$1K | 4 | $127.69 | Feb 17, 2023 |
| Skidmore Constance Ellen | Director | SELL | $100K–$500K | 3K | $120.27 | Dec 13, 2022 |
| GEORGE WILLIAM III | CHIEF FINANCIAL OF… | SELL | $500K+ | 8K | $125.37 | Nov 15, 2022 |
| MYERS FRANKLIN | Director | SELL | $1M+ | 25K | $122.83 | Nov 15, 2022 |
| BULLS HERMAN E | Director | SELL | $1M+ | 9K | $123.00 | Nov 14, 2022 |
| Trent T McKenna | EVP & CHIEF OPERAT… | EXERCISE | $100K–$500K | 4K | $32.70 | Nov 3, 2022 |
| Trent T McKenna | EVP & CHIEF OPERAT… | SELL | $500K+ | 4K | $122.17 | Nov 3, 2022 |
| ANDERSON DARCY | Director | SELL | $1M+ | 10K | $121.70 | Nov 1, 2022 |
| Mercado, Pablo G. | Director | SELL | $100K–$500K | 825 | $121.83 | Nov 1, 2022 |
| Skidmore Constance Ellen | Director | SELL | $100K–$500K | 3K | $103.39 | Sep 13, 2022 |
| MYERS FRANKLIN | Director | SELL | $1M+ | 22K | $106.68 | Aug 19, 2022 |
| Lane Brian E. | PRESIDENT/CHIEF EX… | SELL | $1M+ | 10K | $106.99 | Aug 18, 2022 |
| BULLS HERMAN E | Director | SELL | $500K+ | 8K | $103.44 | Aug 15, 2022 |
| Shaeff Julie | CHIEF ACCOUNTING O… | SELL | $1M+ | 13K | $104.09 | Aug 2, 2022 |
| Shaeff Julie | CHIEF ACCOUNTING O… | EXERCISE | $100K–$500K | 13K | $34.09 | Aug 2, 2022 |
| GEORGE WILLIAM III | CHIEF FINANCIAL OF… | SELL | $1M+ | 16K | $104.23 | Aug 2, 2022 |
| GEORGE WILLIAM III | CHIEF FINANCIAL OF… | EXERCISE | $100K–$500K | 16K | $30.36 | Aug 2, 2022 |
| Mercado, Pablo G. | Director | SELL | $100K–$500K | 2K | $101.43 | Aug 1, 2022 |
| Krusi Alan | Director | SELL | $1M+ | 18K | $83.87 | Jun 17, 2022 |
| Skidmore Constance Ellen | Director | SELL | $100K–$500K | 3K | $89.67 | Jun 10, 2022 |
| Skidmore Constance Ellen | Director | SELL | $100K–$500K | 3K | $89.06 | Mar 11, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 897 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Capital World Investors | 1.6M | $1M+ | SH |
| STATE STREET CORP | 1.4M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1M | $1M+ | SH |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 669K | $1M+ | SH |
| NORGES BANK | 503K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 482K | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 289K | $1M+ | SH |
| FULLER & THALER ASSET MANAGEMENT, INC. | 289K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 286K | $1M+ | SH |
| AMF Tjanstepension AB | 272K | $1M+ | SH |
| LORD, ABBETT & CO. LLC | 269K | $1M+ | SH |
| JACOBS LEVY EQUITY MANAGEMENT, INC | 268K | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 224K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 221K | $1M+ | SH |
| Clearbridge Investments, LLC | 201K | $1M+ | SH |
| ROYAL LONDON ASSET MANAGEMENT LTD | 195K | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 183K | $1M+ | SH |
| Value Aligned Research Advisors, LLC | 147K | $1M+ | SH |
| Point72 Asset Management, L.P. | 147K | $1M+ | SH |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 144K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 13, 2026
4.7%
1.6M shares
SC 13G/A · Jan 30, 2026
12.2%
4.3M shares
SC 13G/A · Jan 21, 2026
8.3%
2.9M shares
SC 13G/A · Dec 4, 2025
10.8%
3.8M shares
SC 13G/A · Nov 14, 2025
5.1%
1.8M shares
SC 13G · Nov 5, 2025
5.4%
1.9M shares
SC 13G/A · Apr 24, 2025
9.4%
3.3M shares
Capital World Investors 95-1411037
SC 13G · Nov 13, 2024
6.4%
2.3M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.0%
3.9M shares
Capital World Investors 95-1411037
SC 13G/A · Feb 9, 2024
4.8%
1.7M shares
SC 13G/A · Jan 23, 2024
13.5%
4.8M shares
Capital World Investors 95-1411037
SC 13G · Feb 13, 2023
5.7%
2.0M shares
SC 13G/A · Jan 26, 2023
16.4%
5.9M shares
SC 13G · Jan 20, 2023
16.4%
5.9M shares
SC 13G/A · Jan 27, 2022
15.2%
5.5M shares
SC 13G/A · Jan 25, 2022
15.2%
5.5M shares