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Comfort Systems USA Inc. 13F holders

Of the 44 funds followed here, 13 reported a position in Comfort Systems USA Inc. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 1.7 million shares worth $3.29 billion, 0.1% of its reported book. New this quarter: Coatue Management.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC1,659,799$3.29 billion0.1%+210,282added30 June 202613F
Geode Capital Management1,151,350$2.29 billion0.1%-87,269trimmed30 June 202613F
Norges Bank471,564$934.6 million0.1%held30 June 202613F
Citadel Advisors268,159$531.5 million0.1%-32,736trimmed30 June 202613F
Baillie Gifford212,655$421.5 million0.4%-12,463trimmed30 June 202613F
Point72 Asset Management188,327$373.3 million0.4%-73,205trimmed30 June 202613F
Capital Research Global Investors95,976$190.2 million0.0%-57,663trimmed30 June 202613F
Renaissance Technologies76,160$150.9 million0.2%+19,500added30 June 202613F
Millennium Management51,043$101.2 million0.0%-59,670trimmed30 June 202613F
Bridgewater Associates48,506$96.1 million0.4%-37,956trimmed30 June 202613F
Coatue Management17,793$35.3 million0.1%+17,793new30 June 202613F
Two Sigma Investments10,740$21.3 million0.0%-1,654trimmed30 June 202613F
Alyeska293$580,7110.0%-11,526trimmed30 June 202613F

Value is what the fund reported. Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
6 May 202613G/AFmr Llc and 3 others1.4 million4.1%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Portfolio Management and 1 other1.9 million5.4%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Capital Management and 1 other2.6 million7.5%31 March 2026passive, institutional (13d-1(b))EDGAR
26 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
13 February 202613G/ACapital World Investors and 1 other1.6 million4.7%31 December 2025passive, institutional (13d-1(b))EDGAR
30 January 202613G/AThe Vanguard Group and 1 other4.3 million12.2%31 December 2025passive, institutional (13d-1(b))EDGAR
21 January 202613G/ABlackRock, Inc. and 1 other2.9 million8.3%31 December 2025passive, institutional (13d-1(b))EDGAR
4 December 202513G/ABlackRock, Inc. and 1 other3.8 million10.8%30 November 2025passive, institutional (13d-1(b))EDGAR
13 November 202513G/ACapital World Investors and 1 other1.8 million5.1%30 September 2025passive, institutional (13d-1(b))EDGAR
5 November 202513GFmr Llc and 3 others1.9 million5.4%30 September 2025passive, institutional (13d-1(b))EDGAR

A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder. Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.

Fails to deliver

Settlement dateShares failedPriceFile
17 August 20267$1,774.06SEC
13 August 2026121$1,738.82SEC

Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period. Largest in the window: 121 on 13 August 2026. A fail is an operational fact about settlement, not a position.

Source

Each fund's 13F-HR on EDGAR, linked per row; positions matched to FIX by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.

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