L3VLUP
ProSign in

FIX in the 13F filings

Comfort Sys USA Inc · CUSIP 199908104

Sector · IndustrialsTheme · Energy and power infrastructure· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2025
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 2 May 2025
Managers listing it
23
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q4 2024 and Q1 2025; 17 listed it in both
Shares listed
7,729,900
combined, among listed positions
Reported value
$2.5bn
combined, at the quarter end

Among the 95 comparable managers: 12 buyers (opened or added shares) and 10 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing FIX in Q1 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

23 of 23 holders

ActionFiling
Capital World Investors2,317,433$747m0.12%Added+170,34812 May 2025 (the filing on sec.gov)
Fidelity (FMR LLC)1,424,242$459munder 0.1%Trimmed-272,7935 Nov 2026 (the filing on sec.gov)
Invesco Ltd1,004,133$324m0.06%Trimmed-398,91512 May 2025 (the filing on sec.gov)
AQR Capital Management LLC530,428$165m0.17%Added+273,45315 May 2025 (the filing on sec.gov)
Baillie Gifford & Co445,915$144m0.13%Trimmed-159,4447 May 2025 (the filing on sec.gov)
Millennium Management LLC317,852$102m0.05%Addedn.a.15 May 2025 (the filing on sec.gov)
AllianceBernstein LP295,744$95munder 0.1%Trimmed-10,00015 May 2025 (the filing on sec.gov)
Two Sigma Investments LP183,051$59m0.13%Addedn.a.15 May 2025 (the filing on sec.gov)
Capital Research Global Investors175,660$57munder 0.1%Trimmed-76,41112 May 2025 (the filing on sec.gov)
D. E. Shaw & Co.168,785$54munder 0.1%Addedn.a.15 May 2025 (the filing on sec.gov)
Arrowstreet Capital LP151,234$49munder 0.1%Trimmed-18,99314 May 2025 (the filing on sec.gov)
Renaissance Technologies LLC131,200$42m0.06%Addedn.a.14 May 2025 (the filing on sec.gov)
Bridgewater Associates LP127,479$41m0.19%Added+26,54614 May 2025 (the filing on sec.gov)
Janus Henderson Group Ltd101,593$33munder 0.1%Trimmed-32,80415 May 2025 (the filing on sec.gov)
Two Sigma Advisers LP97,800$32m0.07%Added+59,40015 May 2025 (the filing on sec.gov)
Man Group PLC90,385$29m0.07%Trimmed-46,04215 May 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC71,034$23m0.14%Added+45,64415 May 2025 (the filing on sec.gov)
Tudor Investment Corp42,769$14munder 0.1%Addedn.a.15 May 2025 (the filing on sec.gov)
Freestone Grove Partners LP17,985$5.8m0.06%Trimmed-29,48315 May 2025 (the filing on sec.gov)
Markel Group Inc13,000$4.2munder 0.1%Held02 May 2025 (the filing on sec.gov)
Brevan Howard Capital Management LP11,878$3.8munder 0.1%Trimmed-1,13715 May 2025 (the filing on sec.gov)
PDT Partners LLC9,134$2.9m0.21%Added+3,70015 May 2025 (the filing on sec.gov)
Polen Capital Management LLC1,166$376kunder 0.1%Newnew12 May 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2024 to Q1 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (1)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
17 in Q3 2024 to 31 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
FIX by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20132$65mn.a.n.a.
Q3 20132$64mn.a.n.a.
Q4 20135$44mn.a.n.a.
Q1 20142$19mn.a.n.a.
Q2 20141$19mn.a.n.a.
Q3 20141$18mn.a.n.a.
Q4 20141$20mn.a.n.a.
Q1 20151$15mn.a.n.a.
Q2 20152$14mn.a.n.a.
Q3 20153$42mn.a.n.a.
Q4 20153$49mn.a.n.a.
Q1 20162$51mn.a.n.a.
Q2 20161$44mn.a.n.a.
Q3 20162$11mn.a.n.a.
Q4 20162$1.4mn.a.n.a.
Q1 20171$903kn.a.n.a.
Q3 20171$735kn.a.n.a.
Q4 20172$6.6mn.a.n.a.
Q1 20181$682kn.a.n.a.
Q3 20184$28mn.a.n.a.
Q4 20186$31mn.a.n.a.
Q1 20192$14mn.a.n.a.
Q2 20192$3.6mn.a.n.a.
Q3 20194$9.0mn.a.n.a.
Q4 20194$30mn.a.n.a.
Q1 20203$10.0mn.a.n.a.
Q2 20201$3.2mn.a.n.a.
Q4 20202$3.0mn.a.n.a.
Q1 20212$97mn.a.n.a.
Q2 20214$152mn.a.n.a.
Q3 20213$138mn.a.n.a.
Q4 20214$281mn.a.n.a.
Q1 20223$305mn.a.n.a.
Q2 20223$283mn.a.n.a.
Q3 20223$314mn.a.n.a.
Q4 20225$326mn.a.n.a.
Q1 20236$554mn.a.n.a.
Q2 20237$740mn.a.n.a.
Q3 20236$940mn.a.n.a.
Q4 20238$1.1bn26
Q1 202414$2.6bn95
Q2 202419$2.7bn134
Q3 202417$3.0bn69
Q4 202420$3.1bn117
Q1 202523$2.5bn1210
Q2 202521$4.2bn119
Q3 202522$6.6bn1011
Q4 202525$6.3bn1722
Q1 202629$8.4bn2220
Q2 202631$12.3bn1726

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

FIX and GEV →FIX and XOM →FIX and CVX →Choose a stock to compare with FIX →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own FIX, latest filings →Back to the 13F Explorer →