Comfort Systems USA filings document regulatory disclosures for a Delaware company providing commercial, industrial and institutional HVAC and electrical contracting services. Form 8-K reports cover quarterly and annual operating results, dividend declarations on common stock, Regulation FD investor presentations, non-GAAP financial measures, and officer appointment or transition matters.
Proxy materials describe annual meeting governance, director and executive compensation matters, and shareholder voting items. The company’s disclosure record also ties business performance to service categories such as mechanical, electrical, plumbing, piping and controls contracting.
BlackRock, Inc. has filed an amended ownership report showing that it beneficially owns 2,917,000 shares of Comfort Systems USA, Inc. common stock, representing 8.3% of the outstanding class as of the event date 12/31/2025.
BlackRock reports sole power to vote 2,749,346 shares and sole power to dispose of 2,917,000 shares, with no shared voting or dispositive power. The filing aggregates holdings of certain BlackRock business units and excludes other units that report separately.
The shares are held on behalf of various clients, and no single underlying holder has more than five percent of Comfort Systems’ outstanding common stock. BlackRock certifies that the position is held in the ordinary course of business and not for the purpose of changing or influencing control of the company.
Comfort Systems USA, Inc. disclosed the equity holdings of an officer, its SVP & General Counsel, in a beneficial ownership report dated 12/31/2025. The filing shows that this individual beneficially owns 490 shares of the company’s common stock in direct form. An explanation notes that this total includes 489 shares of common stock issued pursuant to restricted stock unit grants that are still subject to tenure-based vesting conditions.
Comfort Systems USA, Inc. disclosed leadership changes affecting its senior management team. Trent T. McKenna, currently Executive Vice President and Chief Operating Officer, will become President and Chief Operating Officer effective January 1, 2026. In this new role, he will receive an annual base salary of $850,000 and a target bonus equal to 115% of his base salary.
Mr. McKenna will also be granted a long-term incentive award made up of time-vesting and performance-vesting restricted stock units with a grant date value equal to 400% of his base salary, and he will continue to participate in the company’s Executive Severance Policy. The company also reported that Laura F. Howell plans to retire as Senior Vice President, General Counsel and Secretary effective December 31, 2025. A press release describing these leadership transitions was furnished as an exhibit.
Comfort Systems USA, Inc. reported an insider stock sale by its Senior Vice President and General Counsel. On 12/04/2025, the executive sold 1,000 shares of common stock in a single reported transaction at an average price of $ 996.1634 per share, coded as a sale. After this transaction, the executive directly beneficially owns 7,938 shares of Comfort Systems USA common stock.
The company notes that the sale price shown reflects an average, and that detailed information on the number of shares sold at each specific price level is available upon request from the Company’s Office of the General Counsel.
Comfort Systems USA (FIX) filed a notice of proposed sale of common stock under Rule 144.
The filing covers the planned sale of 1,000 shares of common stock through broker Stifel Nicolaus & Company Inc. on the NYSE, with an aggregate market value of 996000.00. The filing lists total common shares outstanding as 35,271,950, which is a baseline figure, not the amount being sold.
The seller acquired these shares as company stock compensation, including 879 shares on 04/09/2024 and 121 shares on 03/27/2024, both from the issuer. The person for whose account the securities are to be sold represents that they are not aware of any undisclosed material adverse information about the issuer’s current or prospective operations.
BlackRock, Inc. has filed an amended Schedule 13G reporting its beneficial ownership of common stock of Comfort Systems USA, Inc. as of 11/30/2025. BlackRock reports beneficial ownership of 3,803,901 shares of common stock, representing 10.8% of the outstanding class. It has sole power to vote 3,606,513 shares and sole power to dispose of 3,803,901 shares, with no shared voting or dispositive power.
The filing notes that these securities are held by certain BlackRock business units in the ordinary course of business and are not held for the purpose of changing or influencing control of Comfort Systems USA. Various underlying clients have rights to dividends or sale proceeds, but no single client holds more than five percent of the company’s outstanding common shares.
Comfort Systems USA, Inc. director reported a small change in ownership of company stock. On 12/03/2025, the reporting person made a transaction in Common Stock coded as "G," which the footnotes explain is a charitable donation of 270 shares at a stated price of $0.
After this donation, the director beneficially owns 82,631 shares of Comfort Systems USA stock directly and 12,495 shares indirectly through a partnership interest. The indirect transfer details for the 12,495 shares are referenced as being described in a prior filing dated 10/31/2025.
Comfort Systems USA, Inc. reported insider stock activity by its Chief Financial Officer on a Form 4. On December 1, 2025, the CFO had 3,279 shares of common stock forfeited in connection with the second vesting of restricted stock units granted on November 14, 2023, based on an average price of $955.725. The same day, the CFO sold 4,370 shares of common stock at an average price of $958.8785, with full trade details available from the company’s Office of the General Counsel on request. The filing also reports a 2,000‑share charitable donation of common stock. After these transactions, the CFO beneficially owned 37,824 shares of Comfort Systems USA common stock, held directly.
Comfort Systems USA, Inc. (FIX) disclosed an insider stock sale by its President and Chief Executive Officer, who is also a director. On 11/24/2025, the reporting person sold 7,158 shares of common stock in an open market transaction coded as a sale. The filing reports an average sale price of $947.9806 per share, with a note that detailed trade prices and share breakdown are available upon request from the company’s Office of the General Counsel.
After this transaction, the insider beneficially owns 180,888 shares of Comfort Systems USA common stock in direct form. The filing is made on Form 4, which is used to report changes in the ownership of company securities by officers, directors, and other insiders.
FIX filed a Form 144 notice for a planned sale of 7,158 common shares. The shares are to be sold on the NYSE through Morgan Stanley Smith Barney LLC Executive Financial Services, with an indicated aggregate market value of $6,785,645.13 and with 35,271,950 shares of the class shown as outstanding. The approximate sale date is 11/24/2025.
The securities were acquired on 04/03/2017 from the issuer as compensation for past services, with payment also dated 04/03/2017 and described as compensation. By signing, the selling person represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.