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Comfort Systems
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Overview Fund Activity

625 hedge funds and large institutions have $10.7B invested in Comfort Systems in 2025 Q1 according to their latest regulatory filings, with 99 funds opening new positions, 272 increasing their positions, 198 reducing their positions, and 121 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
625
Holders Change
-35
Holders Change %
-5.3%
% of All Funds
8.49%
Holding in Top 10
4
Holding in Top 10 Change
-6
Holding in Top 10 Change %
-60%
% of All Funds
0.05%
New
99
Increased
272
Reduced
198
Closed
121
Calls
$59.5M
Puts
$54.9M
Net Calls
+$4.64M
Net Calls Change
+$15.7M

Top Buyers

1
AQR Capital Management
AQR Capital Management
Connecticut
$165M
2
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
$103M
3
Capital World Investors
Capital World Investors
California
$747M
4
Citadel Advisors
Citadel Advisors
Florida
$62.4M
5
Millennium Management
Millennium Management
New York
$102M

Top Sellers

1
BlackRock
BlackRock
New York
$1.27B
2
VNIM
Vaughan Nelson Investment Management
Texas
$0
3
Invesco
Invesco
Georgia
$324M
4
Goldman Sachs
Goldman Sachs
New York
$107M
5
Fidelity Investments
Fidelity Investments
Massachusetts
$459M
Name Holding Trade Value Shares
Change 		Shares
Change %
RS
51
Robeco Schweiz
Switzerland
$41.7M +$34.2M +106,152 +460%
BA
52
Bridgewater Associates
Connecticut
$41.1M +$8.56M +26,546 +26%
EWM
53
Evercore Wealth Management
New York
$40.8M +$40.8M +126,533 New
Russell Investments Group
54
Russell Investments Group
United Kingdom
$40.1M +$23.2M +72,061 +137%
Handelsbanken Fonder
55
Handelsbanken Fonder
Sweden
$37.4M +$34.5M +107,000 +1,171%
CI Investments Inc
56
CI Investments Inc
Ontario, Canada
$36.4M -$1.21M -3,758 -3%
PAM
57
Panagora Asset Management
Massachusetts
$36M +$21.6M +67,058 +150%
CAM
58
Congress Asset Management
Massachusetts
$34.7M +$2.61M +8,111 +8%
Janus Henderson Group
59
Janus Henderson Group
United Kingdom
$32.9M -$10.6M -32,804 -24%
BGC
60
Blue Grotto Capital
Georgia
$32.2M +$14.3M +44,400 +80%
RhumbLine Advisers
61
RhumbLine Advisers
Massachusetts
$32.2M -$309K -959 -1%
Two Sigma Advisers
62
Two Sigma Advisers
New York
$31.5M +$19.1M +59,400 +155%
SFI
63
Susquehanna Fundamental Investments
Pennsylvania
$31.1M – – –
Lazard Asset Management
64
Lazard Asset Management
New York
$30.9M +$18.2M +56,582 +144%
Lord, Abbett & Co
65
Lord, Abbett & Co
New Jersey
$30.4M -$21.4M -66,258 -41%
SFM
66
Systematic Financial Management
New Jersey
$30.4M -$7.66M -23,771 -20%
UBS Group
67
UBS Group
Switzerland
$30.3M +$11.7M +36,153 +62%
Schroder Investment Management Group
68
Schroder Investment Management Group
United Kingdom
$30.2M +$1.51M +4,686 +5%
Allianz Asset Management
69
Allianz Asset Management
Germany
$29.5M +$12.6M +38,940 +74%
Man Group
70
Man Group
United Kingdom
$29.1M -$14.8M -46,042 -34%
Raymond James Financial
71
Raymond James Financial
Florida
$28.8M -$868K -2,692 -3%
American Century Companies
72
American Century Companies
Missouri
$27.4M +$1.94M +6,015 +8%
RG
73
Renaissance Group
Kentucky
$26.3M -$4.32M -13,389 -14%
JG
74
Jain Global
New York
$25.6M +$25M +77,620 +4,579%
TCM
75
TimesSquare Capital Management
New York
$25.3M -$3.06M -9,482 -11%
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