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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 Mar 2025
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 2 May 2025
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q4 2024 and Q1 2025; 20 listed it in both
Shares listed
235,300,621
combined, among listed positions
Reported value
$15.4bn
combined, at the quarter end

Among the 95 comparable managers: 15 buyers (opened or added shares) and 13 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 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.

24 of 24 holders

ActionFiling
Fidelity (FMR LLC)104,940,369$6.9bn0.44%Added+689,7945 Nov 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc42,108,425$2.8bn0.34%Trimmed-16,803,38814 May 2025 (the filing on sec.gov)
MFS Investment Management20,676,055$1.4bn0.45%Trimmed-1,460,4592 May 2025 (the filing on sec.gov)
Wellington Management Group LLP12,168,971$798m0.15%Added+5,154,86013 May 2025 (the filing on sec.gov)
Janus Henderson Group Ltd10,268,334$684m0.37%Added+3,012,04415 May 2025 (the filing on sec.gov)
Invesco Ltd9,198,997$603m0.11%Added+141,06912 May 2025 (the filing on sec.gov)
AllianceBernstein LP8,739,553$573m0.21%Added+92,45015 May 2025 (the filing on sec.gov)
Neuberger Berman Group LLC7,112,553$467m0.39%Trimmed-1,088,31427 Oct 2026 (the filing on sec.gov)
Capital Research Global Investors5,805,553$381m0.08%Added+1,563,46312 May 2025 (the filing on sec.gov)
AQR Capital Management LLC3,275,831$213m0.22%Added+2,529,31915 May 2025 (the filing on sec.gov)
Man Group PLC2,107,130$138m0.35%Trimmed-235,17715 May 2025 (the filing on sec.gov)
Arrowstreet Capital LP1,976,930$130m0.11%Trimmed-711,30314 May 2025 (the filing on sec.gov)
Egerton Capital UK LLP1,762,623$116m1.33%Newnew6 May 2025 (the filing on sec.gov)
Holocene Advisors LP1,283,806$84m0.25%Added+645,39915 May 2025 (the filing on sec.gov)
Voloridge Investment Management LLC1,175,594$77m0.29%Added+620,55315 May 2025 (the filing on sec.gov)
D. E. Shaw & Co.1,099,721$72m0.06%Addedn.a.15 May 2025 (the filing on sec.gov)
Balyasny Asset Management LLC593,730$39m0.06%Trimmed-2,664,74315 May 2025 (the filing on sec.gov)
Woodline Partners LP457,723$30m0.20%Addedn.a.15 May 2025 (the filing on sec.gov)
Freestone Grove Partners LP218,674$14m0.15%Trimmed-242,81615 May 2025 (the filing on sec.gov)
Acadian Asset Management LLC129,213$8.5munder 0.1%Trimmed-167,06821 May 2025 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC108,220$7.1munder 0.1%Trimmed-1,053,27015 May 2025 (the filing on sec.gov)
PDT Partners LLC49,719$3.3m0.23%Added+35,31915 May 2025 (the filing on sec.gov)
Winton Group Ltd31,505$2.1m0.13%Newnew15 May 2025 (the filing on sec.gov)
Rokos Capital Management LLP11,392$747kunder 0.1%Added+1,83815 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 (2)

Exited (4)

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 →