Company · Ownership research

AMPHENOL CORP /DE/ APH

CIK 0000820313 · CUSIP 032095101

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 032095101 (APH), not CUSIP 032095901 (APH), CUSIP 032095951 (APH), and does not merge CUSIPs.

This page lists the top 20 of 2,060 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	VANGUARD GROUP INC CIK 102909 · View history	$17.10B 126,553,498 shares	0.25%	+1.32M(+1.10%)Added	SEC filing ↗ Jan 29, 2026	▾
02	BlackRock, Inc. CIK 2012383 · View history	$14.34B 106,137,606 shares	0.24%	+5.29M(+5.20%)Added	SEC filing ↗ Feb 12, 2026	▾
03	FMR LLC CIK 315066 · View history	$11.68B 86,420,795 shares	0.60%	-13.40M(-13.40%)Reduced	SEC filing ↗ Feb 17, 2026	▾
04	STATE STREET CORP CIK 93751 · View history	$7.71B 56,913,598 shares	0.26%	+888.53K(+1.60%)Added	SEC filing ↗ Feb 13, 2026	▾
05	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$5.12B 37,923,065 shares	0.55%	-6.15M(-14.00%)Reduced	SEC filing ↗ Feb 17, 2026	▾
06	JPMORGAN CHASE & CO CIK 19617 · View history	$4.64B 34,325,148 shares	0.31%	+17.39M(+102.70%)Added	SEC filing ↗ Feb 11, 2026	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$4.09B 30,318,652 shares	0.25%	+748.81K(+2.50%)Added	SEC filing ↗ Feb 9, 2026	▾
08	Capital International Investors CIK 1562230 · View history	$3.20B 23,680,749 shares	0.50%	+5.67M(+31.50%)Added	SEC filing ↗ Feb 11, 2026	▾
09	NORGES BANK CIK 1374170 · View history	$3.05B 22,585,063 shares	0.33%	+22.59MNew	SEC filing ↗ Feb 10, 2026	▾
10	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$2.97B 21,957,452 shares	0.22%	-688.72K(-3.00%)Reduced	SEC filing ↗ Feb 17, 2026	▾
11	MORGAN STANLEY CIK 895421 · Amended · View history	$2.46B 18,185,947 shares	0.15%	+64.65K(+0.40%)Added	SEC filing ↗ May 27, 2026	▾
12	Bank of New York Mellon Corp CIK 1390777 · View history	$2.39B 17,710,133 shares	0.42%	-6.29M(-26.20%)Reduced	SEC filing ↗ Feb 10, 2026	▾
13	Capital Research Global Investors CIK 1422848 · View history	$2.22B 16,456,876 shares	0.41%	+933.79K(+6.00%)Added	SEC filing ↗ Feb 11, 2026	▾
14	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$2.15B 15,913,076 shares	0.69%	-2.62M(-14.20%)Reduced	SEC filing ↗ Jan 22, 2026	▾
15	NORTHERN TRUST CORP CIK 73124 · View history	$1.83B 13,510,266 shares	0.23%	+592.87K(+4.60%)Added	SEC filing ↗ Feb 17, 2026	▾
16	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$1.68B 12,420,002 shares	0.29%	+3.58M(+40.40%)Added	SEC filing ↗ Feb 17, 2026	▾
17	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$1.60B 11,858,355 shares	0.94%	+4.58M(+62.90%)Added	SEC filing ↗ Feb 13, 2026	▾
18	FRANKLIN RESOURCES INC CIK 38777 · View history	$1.55B 11,462,227 shares	0.38%	-1.39M(-10.80%)Reduced	SEC filing ↗ Feb 11, 2026	▾
19	ROYAL BANK OF CANADA CIK 1000275 · View history	$1.44B 10,637,754 shares	0.25%	-905.05K(-7.80%)Reduced	SEC filing ↗ Feb 17, 2026	▾
20	JENNISON ASSOCIATES LLC CIK 53417 · View history	$1.39B 10,257,379 shares	0.83%	+7.93M(+340.80%)Added	SEC filing ↗ Jan 30, 2026	▾

Showing 20 / 2,060 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

2,060

Cancelled or null records excluded

Disclosed shares

1,236,126,012

Not deduplicated across managers

Disclosed value

$156.77B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

AMPHENOL CORP /DE/ · Q4 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.