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APH in the 13F filings

Amphenol Corp · CUSIP 032095101

Sector · Technology hardware and equipmentTheme · AI infrastructure and semiconductors· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Dec 2024
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 11 Feb 2025
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
94
filed both Q3 2024 and Q4 2024; 24 listed it in both
Shares listed
252,018,055
combined, among listed positions
Reported value
$17.5bn
combined, at the quarter end

Among the 94 comparable managers: 15 buyers (opened or added shares) and 17 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 APH in Q4 2024

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2024, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Fidelity (FMR LLC)104,250,575$7.2bn0.43%Added+2,643,7525 Nov 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc58,911,813$4.1bn0.47%Added+15,837,40714 Feb 2025 (the filing on sec.gov)
MFS Investment Management22,136,514$1.5bn0.49%Trimmed-703,99812 Feb 2025 (the filing on sec.gov)
Invesco Ltd9,057,928$629m0.12%Added+107,48213 Feb 2025 (the filing on sec.gov)
AllianceBernstein LP8,647,103$601m0.20%Trimmed-6,275,78312 Feb 2025 (the filing on sec.gov)
Neuberger Berman Group LLC8,200,867$570m0.45%Trimmed-655,14113 Feb 2025 (the filing on sec.gov)
Janus Henderson Group Ltd7,256,290$504m0.26%Added+3,933,26914 Feb 2025 (the filing on sec.gov)
Wellington Management Group LLP7,014,111$487m0.09%Addedn.a.12 Feb 2025 (the filing on sec.gov)
Citadel Advisors LLC5,365,007$373m0.06%Added+234,36414 Feb 2025 (the filing on sec.gov)
Capital Research Global Investors4,242,090$295m0.06%Added+4,02113 Feb 2025 (the filing on sec.gov)
Balyasny Asset Management LLC3,258,473$226m0.34%Added+293,51614 Feb 2025 (the filing on sec.gov)
Arrowstreet Capital LP2,688,233$187m0.15%Trimmed-623,61412 Feb 2025 (the filing on sec.gov)
Man Group PLC2,342,307$163m0.43%Trimmed-1,691,19314 Feb 2025 (the filing on sec.gov)
Millennium Management LLC1,910,015$133m0.06%Trimmed-980,85314 Feb 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC1,161,490$81m0.47%Added+552,60914 Feb 2025 (the filing on sec.gov)
Point72 Asset Management LP1,150,490$80m0.18%Trimmed-1,060,18214 Feb 2025 (the filing on sec.gov)
AQR Capital Management LLC746,512$52m0.07%Trimmed-40,60714 Feb 2025 (the filing on sec.gov)
Holocene Advisors LP638,407$44m0.14%Added+113,40014 Feb 2025 (the filing on sec.gov)
Walleye Capital LLC558,829$39m0.09%Trimmed-364,82313 Feb 2025 (the filing on sec.gov)
Voloridge Investment Management LLC555,041$39m0.14%Trimmed-487,94114 Feb 2025 (the filing on sec.gov)
Freestone Grove Partners LP461,490$32m0.39%Heldn.a.14 Feb 2025 (the filing on sec.gov)
Two Sigma Investments LP413,108$29m0.06%Trimmed-1,997,20614 Feb 2025 (the filing on sec.gov)
Marshall Wace LLP333,518$23munder 0.1%Addedn.a.13 Feb 2025 (the filing on sec.gov)
Acadian Asset Management LLC296,281$21m0.06%Trimmed-441,01111 Feb 2025 (the filing on sec.gov)
Quantbot Technologies LP149,556$10m0.38%Trimmed-247,42511 Feb 2025 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2024 to Q4 2024, 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 (4)

Exited (3)

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.
31 in Q3 2024 to 34 in Q2 2026

Tracked managers listing it, at least.

010203040split2014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
APH by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201310$2.9bnn.a.n.a.
Q3 201311$2.8bnn.a.n.a.
Q4 20137$3.6bnn.a.n.a.
Q1 20148$3.8bnn.a.n.a.
Q2 201410$4.2bnn.a.n.a.
Q3 201412$4.5bnn.a.n.a.
Q4 201411$4.9bnn.a.n.a.
Q1 201512$5.6bnn.a.n.a.
Q2 201513$5.5bnn.a.n.a.
Q3 201514$5.0bnn.a.n.a.
Q4 201512$5.1bnn.a.n.a.
Q1 201613$5.6bnn.a.n.a.
Q2 201613$5.5bnn.a.n.a.
Q3 201611$6.3bnn.a.n.a.
Q4 201614$6.4bnn.a.n.a.
Q1 201711$6.5bnn.a.n.a.
Q2 201714$7.4bnn.a.n.a.
Q3 201711$8.5bnn.a.n.a.
Q4 201714$8.5bnn.a.n.a.
Q1 201815$8.0bnn.a.n.a.
Q2 201815$7.9bnn.a.n.a.
Q3 201815$8.8bnn.a.n.a.
Q4 201815$7.4bnn.a.n.a.
Q1 201917$8.3bnn.a.n.a.
Q2 201918$7.7bnn.a.n.a.
Q3 201914$7.4bnn.a.n.a.
Q4 201918$8.5bnn.a.n.a.
Q1 202018$5.0bnn.a.n.a.
Q2 202018$5.9bnn.a.n.a.
Q3 202023$6.5bnn.a.n.a.
Q4 202020$7.3bnn.a.n.a.
Q1 202118$7.9bnn.a.n.a.
Q2 202119$7.8bnn.a.n.a.
Q3 202114$9.0bnn.a.n.a.
Q4 202112$10.8bnn.a.n.a.
Q1 202222$9.1bnn.a.n.a.
Q2 202221$7.7bnn.a.n.a.
Q3 202219$7.2bnn.a.n.a.
Q4 202218$8.3bnn.a.n.a.
Q1 202317$9.1bnn.a.n.a.
Q2 202318$9.9bnn.a.n.a.
Q3 202317$9.6bnn.a.n.a.
Q4 202316$12.1bn117
Q1 202418$14.1bn117
Q2 2024 (split)30$17.0bn90
Q3 202431$15.9bn1818
Q4 202431$17.5bn1517
Q1 202524$15.4bn1513
Q2 202532$25.2bn2014
Q3 202534$31.4bn1420
Q4 202532$31.3bn1727
Q1 202631$28.5bn2522
Q2 202634$38.7bn2422

Compare with…

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

APH and NVDA →APH and AVGO →APH and MU →Choose a stock to compare with APH →

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 APH, latest filings →Back to the 13F Explorer →