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Security record · archived quarter

FIX

Comfort Systems USA, Inc. · Industrials · Engineering & Construction

1,715.7 +0.5% mkt cap $60.38B quote delayed (FMP) · as of Oct 11 03:53 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
21Tracked holders
0Δ holders
16.24MShares held
$8.71BReported value
+1New positions
−1Exits
Stable Conviction score 45/100 3 quarters of rising tracked shares ●●●○○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth 0.0% · share flow -1.5% · net new positions 0.0% — formula

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 179 +6 25.21M $49.87B +9 −2
Q1 2026 175 +5 24.43M $33.47B +7 −3
Q4 2025 169 +1 27.03M $25.24B +2 —
Q3 2025 25 +2 18.02M $14.86B +2 −1
Q2 2025 21 0 16.24M $8.71B +1 −1
Q1 2025 18 0 7.27M $2.34B — —
Q4 2024 18 +1 6.29M $2.67B +1 —
Q3 2024 16 -1 5.63M $2.20B — −1
Q2 2024 17 — 5.97M $1.82B — —
Holder count
Who holds it · Q2 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 BlackRock ✦ (passive) 3.88M — $2.08B 0.0% n/c 1 SEC ↗ ×19
2 The Vanguard Group ✦ (passive) 3.77M — $2.02B 0.0% n/c 1 SEC ↗ ×6
3 Capital World Investors ✦ 2.23M -3.9% $1.19B 0.2% ▼ Trim 5 SEC ↗
4 Fidelity (FMR) ✦ 1.57M — $842.11M 0.0% n/c 1 SEC ↗ ×6
5 State Street Global Advisors ✦ (passive) 1.07M -3.4% $575.77M 0.0% ▼ Trim 3 SEC ↗
6 Geode Capital Management ✦ (passive) 821.90K +0.4% $440.76M 0.0% ▲ Add 5 SEC ↗ ×2
7 AQR Capital Management ✦ 782.43K +47.5% $419.05M 0.3% ▲ Add 5 SEC ↗ ×6
8 Norges Bank ✦ (passive) 479.29K -0.6% $257.00M 0.0% ▼ Trim 5 SEC ↗
9 Baillie Gifford ✦ 432.54K -3.0% $231.93M 0.2% ▼ Trim 5 SEC ↗ ×4
10 D. E. Shaw & Co. ✦ 195.00K +15.5% $104.56M 0.1% ▲ Add 5 SEC ↗ ×2
11 T. Rowe Price ✦ 189.99K +30.9% $101.88M 0.0% ▲ Add 5 SEC ↗ ×2
12 Third Point ✦ 185.00K New $99.20M 1.3% New 1 SEC ↗
13 Millennium Management ✦ 155.55K -51.1% $83.41M 0.1% ▼ Trim 5 SEC ↗
14 Arrowstreet Capital ✦ 149.61K -1.1% $80.22M 0.1% ▼ Trim 5 SEC ↗
15 Renaissance Technologies ✦ 130.30K -0.7% $69.87M 0.1% ▼ Trim 5 SEC ↗
16 Citadel Advisors ✦ 64.32K -66.8% $34.49M 0.0% ▼ Trim 5 SEC ↗ ×2
17 Wellington Management ✦ 55.42K -0.5% $29.72M 0.0% ▼ Trim 5 SEC ↗ ×4
18 Gotham Asset Management ✦ 30.20K +34.5% $16.19M 0.1% ▲ Add 5 SEC ↗
19 Two Sigma Investments ✦ 17.92K -90.2% $9.61M 0.0% ▼ Trim 5 SEC ↗
20 Markel Group ✦ 13.00K 0.0% $6.97M 0.1% Held 5 SEC ↗
21 Bridgewater Associates ✦ 12.25K -90.4% $6.57M 0.0% ▼ Trim 5 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Third Point $99.20M 1.3%

Exited

Marshall Wace $16.52M was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,187 holders, 31.59M shares, $41.94B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Aug 26 Lane Brian E.

Officer, Director · 16.02K sh · $25.77M

Aug 17 GEORGE WILLIAM III

Officer · 2.55K sh · $4.75M

Aug 11 MYERS FRANKLIN

Director · 4.00K sh · $6.78M

Aug 10 MYERS FRANKLIN

Director · 3.50K sh · $5.92M

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q2 2025 · Methodology · Get this via the API