Comfort Systems Usa Inc (FIX) Institutional Ownership

Ownership Summary

Comfort Systems Usa Inc (NYSE:FIX) currently has 398 active institutional owners and shareholders as of today (December 2025), that have filed 13F forms with the Securities Exchange Commission (SEC).

• The collective stake of institutional investors in Comfort Systems Usa moved to 20.2% in December 2025, a shift down from the 94.1% reported for September 2025.
• The company experienced a 16.21% quarterly change in institutional shares held, alongside a decrease of 39.24% in total owners annually.
• Of these 398 institutional investors, 206 increased their holdings in Comfort Systems Usa, while 144 of them reduced positions, and 48 investors maintained their exposure.
• The total number of shares held by institutions in Comfort Systems Usa increased to 7.18Mn as of December 2025, a net change of up by 1.00Mn shares quarter on quarter, and down 26.82Mn shares year over year.
• As of December 31, 2025, VANGUARD GROUP INC held Comfort Systems Usa's largest shareholding position with over 4.31Mn shares, representing 12.15% of total outstanding shares.
• Among the most significant buyers of Comfort Systems Usa during December 2025 were VANGUARD GROUP INC (625.57K), NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (309.22K), SG Americas Securities, LLC (120.40K), KBC Group NV (90.75K), Robeco Institutional Asset Management B.V. (82.30K).
• Leading sellers of Comfort Systems Usa stock in December 2025 included COMERICA BANK (153.75K), BAILLIE GIFFORD & CO (138.04K), Retirement Systems of Alabama (67.46K), JENNISON ASSOCIATES LLC (61.44K), PRINCIPAL FINANCIAL GROUP INC (56.61K).
• The top 10 institutional holders of Comfort Systems Usa for the quarter ending December 2025 included VANGUARD GROUP INC (4.31Mn), NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (310.03K), BAILLIE GIFFORD & CO (274.74K), UBS Group AG (153.73K), Zurcher Kantonalbank (Zurich Cantonalbank) (143.60K), SG Americas Securities, LLC (122.47K), PRINCIPAL FINANCIAL GROUP INC (104.09K), KBC Group NV (91.73K), Robeco Institutional Asset Management B.V. (84.73K), CONGRESS ASSET MANAGEMENT CO (82.34K).