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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
30 Sep 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 31 Oct 2025
Managers listing it
22
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q2 2025 and Q3 2025; 19 listed it in both
Shares listed
7,966,403
combined, among listed positions
Reported value
$6.6bn
combined, at the quarter end

Among the 95 comparable managers: 10 buyers (opened or added shares) and 11 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 Q3 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

22 of 22 holders

ActionFiling
Fidelity (FMR LLC)1,892,021$1.6bn0.08%Added+321,53113 Nov 2025 (the filing on sec.gov)
Capital World Investors1,799,310$1.5bn0.20%Trimmed-427,84313 Nov 2025 (the filing on sec.gov)
Invesco Ltd1,064,560$878m0.14%Added+73,72713 Nov 2025 (the filing on sec.gov)
AQR Capital Management LLC835,560$678m0.43%Added+53,12514 Nov 2025 (the filing on sec.gov)
Baillie Gifford & Co412,784$341m0.25%Trimmed-19,75831 Oct 2025 (the filing on sec.gov)
Millennium Management LLC358,685$296m0.13%Addedn.a.14 Nov 2025 (the filing on sec.gov)
Artisan Partners LP234,223$193m0.27%Added+20,59212 Nov 2025 (the filing on sec.gov)
AllianceBernstein LP211,153$174m0.05%Trimmed-60,23014 Nov 2025 (the filing on sec.gov)
Third Point LLC200,000$165m1.84%Added+15,00014 Nov 2025 (the filing on sec.gov)
Arrowstreet Capital LP190,203$157m0.10%Added+40,59613 Nov 2025 (the filing on sec.gov)
D. E. Shaw & Co.187,594$155m0.09%Trimmed-7,40814 Nov 2025 (the filing on sec.gov)
Capital Research Global Investors152,607$126munder 0.1%Trimmed-23,05313 Nov 2025 (the filing on sec.gov)
Janus Henderson Group Ltd86,181$71munder 0.1%Trimmed-17,30614 Nov 2025 (the filing on sec.gov)
Neuberger Berman Group LLC64,796$53munder 0.1%Trimmedn.a.27 Oct 2026 (the filing on sec.gov)
Freestone Grove Partners LP52,304$43m0.32%Trimmed-50,96514 Nov 2025 (the filing on sec.gov)
Bridgewater Associates LP52,083$43m0.17%Added+39,83713 Nov 2025 (the filing on sec.gov)
Renaissance Technologies LLC50,400$42m0.05%Trimmed-79,90013 Nov 2025 (the filing on sec.gov)
Brevan Howard Capital Management LP48,062$40m0.18%Added+31,50314 Nov 2025 (the filing on sec.gov)
Point72 Asset Management LP34,884$29munder 0.1%Newnew14 Nov 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC20,475$17m0.10%Trimmed-61,02214 Nov 2025 (the filing on sec.gov)
Markel Group Inc13,000$11m0.09%Held031 Oct 2025 (the filing on sec.gov)
PDT Partners LLC5,518$4.6m0.29%Trimmed-4,60717 Nov 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2025 to Q3 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 →