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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
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 1 May 2026
Managers listing it
42
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 24 listed it in both
Shares listed
6,226,313
combined, among listed positions
Reported value
$8.5bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 22 buyers (opened or added shares) and 20 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -951,341.

Managers listing FIX in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

42 of 42 holders

ActionFiling
Fidelity (FMR LLC)1,449,517$2.0bn0.11%Trimmed-221,19415 May 2026 (the filing on sec.gov)
AQR Capital Management LLC1,116,230$1.5bn0.68%Added+96,30815 May 2026 (the filing on sec.gov)
Capital World Investors865,780$1.2bn0.16%Trimmed-774,75213 May 2026 (the filing on sec.gov)
Invesco Ltd606,580$836m0.08%Trimmed-46,39912 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP252,979$349m0.19%Added+28,71214 May 2026 (the filing on sec.gov)
Baillie Gifford & Co225,118$310m0.32%Trimmed-49,6248 May 2026 (the filing on sec.gov)
Point72 Asset Management LP219,232$302m0.39%Added+72,37815 May 2026 (the filing on sec.gov)
Artisan Partners LP208,177$287m0.46%Trimmed-8,03413 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc161,169$222munder 0.1%Trimmed-16,44715 May 2026 (the filing on sec.gov)
Capital Research Global Investors153,639$212munder 0.1%Added+37,05213 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd115,378$159m0.08%Added+16,45118 May 2026 (the filing on sec.gov)
Millennium Management LLC103,313$142m0.06%Added+40,96915 May 2026 (the filing on sec.gov)
AllianceBernstein LP148,961$139munder 0.1%Trimmed-33,84615 May 2026 (the filing on sec.gov)
Bridgewater Associates LP86,462$119m0.53%Added+18,26315 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.67,779$93m0.06%Trimmed-16,72215 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC66,716$92m0.11%Added+14715 May 2026 (the filing on sec.gov)
Man Group PLC57,847$80m0.14%Added+24,52315 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC56,660$78m0.12%Added+2,68014 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC40,338$56munder 0.1%Trimmed-12,38827 Oct 2026 (the filing on sec.gov)
Acadian Asset Management LLC34,958$48m0.07%Added+26,49313 May 2026 (the filing on sec.gov)
Holocene Advisors LP26,679$37m0.09%Added+19,66715 May 2026 (the filing on sec.gov)
Citadel Advisors LLC24,295$34munder 0.1%Added+15,15615 May 2026 (the filing on sec.gov)
Wellington Management Group LLP19,174$26munder 0.1%Trimmed-2,42815 May 2026 (the filing on sec.gov)
Freestone Grove Partners LP17,281$24m0.17%Trimmed-48,42715 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC16,593$23m0.16%Trimmed-14,62415 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, 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 (5)

Exited (1)

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 →