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 2,338 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	BlackRock, Inc. CIK 2012383 · View history	$17.85B 101,252,038 shares	0.27%	-714.03K(-0.70%)Reduced	SEC filing ↗ Aug 7, 2026	▾
02	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · View history	$14.17B 80,347,208 shares	0.30%	+471.75K(+0.60%)Added	SEC filing ↗ Aug 13, 2026	▾
03	FMR LLC CIK 315066 · View history	$12.44B 70,569,005 shares	0.54%	-8.91M(-11.20%)Reduced	SEC filing ↗ Aug 13, 2026	▾
04	STATE STREET CORP CIK 93751 · View history	$10.50B 59,492,948 shares	0.31%	+2.10M(+3.70%)Added	SEC filing ↗ Aug 7, 2026	▾
05	Capital International Investors CIK 1562230 · View history	$7.59B 43,036,258 shares	1.57%	+7.70M(+21.80%)Added	SEC filing ↗ Aug 12, 2026	▾
06	JPMORGAN CHASE & CO CIK 19617 · View history	$6.52B 39,198,712 shares	0.38%	-10.07M(-20.40%)Reduced	SEC filing ↗ Aug 12, 2026	▾
07	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · View history	$6.29B 35,688,783 shares	0.28%	-161.39K(-0.50%)Reduced	SEC filing ↗ Aug 13, 2026	▾
08	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$5.64B 32,011,336 shares	0.56%	+5.82M(+22.20%)Added	SEC filing ↗ Aug 14, 2026	▾
09	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$5.47B 31,068,834 shares	0.29%	-227.13K(-0.70%)Reduced	SEC filing ↗ Aug 12, 2026	▾
10	Capital Research Global Investors CIK 1422848 · View history	$5.20B 29,487,845 shares	0.73%	+2.86M(+10.70%)Added	SEC filing ↗ Aug 12, 2026	▾
11	MORGAN STANLEY CIK 895421 · View history	$3.63B 20,579,230 shares	0.19%	+3.07M(+17.50%)Added	SEC filing ↗ Aug 13, 2026	▾
12	NORGES BANK CIK 1374170 · View history	$3.38B 19,193,869 shares	0.34%	+19.19MNew	SEC filing ↗ Aug 12, 2026	▾
13	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$2.92B 16,579,919 shares	0.50%	+1.58M(+10.50%)Added	SEC filing ↗ Aug 14, 2026	▾
14	BANK OF AMERICA CORP /DE/ CIK 70858 · View history	$2.86B 16,201,231 shares	0.18%	-4.47M(-21.60%)Reduced	SEC filing ↗ Aug 14, 2026	▾
15	Nuveen, LLC CIK 1871926 · View history	$2.66B 15,066,304 shares	0.63%	+1.94M(+14.80%)Added	SEC filing ↗ Aug 11, 2026	▾
16	Bank of New York Mellon Corp CIK 1390777 · View history	$2.57B 14,572,023 shares	0.42%	-1.74M(-10.70%)Reduced	SEC filing ↗ Aug 6, 2026	▾
17	NORTHERN TRUST CORP CIK 73124 · View history	$2.37B 13,455,160 shares	0.28%	-14.38K(-0.10%)Reduced	SEC filing ↗ Aug 13, 2026	▾
18	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$2.10B 11,886,105 shares	0.93%	+1.58K(0.00%)Added	SEC filing ↗ Aug 13, 2026	▾
19	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$1.93B 10,522,112 shares	0.61%	-3.44M(-24.70%)Reduced	SEC filing ↗ Aug 3, 2026	▾
20	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$1.90B 10,766,878 shares	0.20%	-639.80K(-5.60%)Reduced	SEC filing ↗ Aug 14, 2026	▾

Showing 20 / 2,338 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

2,338

Cancelled or null records excluded

Disclosed shares

1,167,944,713

Not deduplicated across managers

Disclosed value

$205.05B

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/ · Q2 2026

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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.