Company · Ownership research

ONTO INNOVATION INC. ONTO

CIK 0000704532 · CUSIP 683344105

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 683344105 (ONTO), not CUSIP 683344905 (ONTO), CUSIP 683344955 (ONTO), and does not merge CUSIPs.

This page lists the top 20 of 477 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	$752.01M 6,197,550 shares	0.02%	+157.79K(+2.60%)Added	SEC filing ↗ May 2, 2025	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$626.15M 5,160,256 shares	0.01%	-5.88K(-0.10%)Reduced	SEC filing ↗ May 9, 2025	▾
03	JPMORGAN CHASE & CO CIK 19617 · View history	$295.00M 2,431,179 shares	0.02%	+238.94K(+10.90%)Added	SEC filing ↗ May 12, 2025	▾
04	STATE STREET CORP CIK 93751 · View history	$184.31M 1,518,988 shares	0.01%	-6.04K(-0.40%)Reduced	SEC filing ↗ May 15, 2025	▾
05	Invesco Ltd. CIK 914208 · View history	$159.26M 1,312,495 shares	0.03%	-93.54K(-6.70%)Reduced	SEC filing ↗ May 12, 2025	▾
06	MASSACHUSETTS FINANCIAL SERVICES CO /MA/ CIK 912938 · View history	$156.70M 1,291,415 shares	0.05%	+421.17K(+48.40%)Added	SEC filing ↗ May 2, 2025	▾
07	FRANKLIN RESOURCES INC CIK 38777 · View history	$146.54M 1,207,648 shares	0.04%	-345.62K(-22.30%)Reduced	SEC filing ↗ May 13, 2025	▾
08	PARADIGM CAPITAL MANAGEMENT INC/NY CIK 1037792 · View history	$134.07M 1,104,939 shares	7.45%	0(0.00%)Unchanged	SEC filing ↗ May 15, 2025	▾
09	FMR LLC CIK 315066 · Amended · View history	$124.46M 1,025,718 shares	0.01%	+282.49K(+38.00%)Added	SEC filing ↗ Nov 5, 2026	▾
10	GENEVA CAPITAL MANAGEMENT LLC CIK 1009232 · View history	$123.20M 1,015,323 shares	2.30%	+4.63K(+0.50%)Added	SEC filing ↗ May 9, 2025	▾
11	MACQUARIE GROUP LTD CIK 1418333 · Amended · View history	$121.44M 1,000,817 shares	0.15%	+464.26K(+86.50%)Added	SEC filing ↗ Aug 14, 2025	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$106.74M 879,428 shares	0.01%	+44.23K(+5.30%)Added	SEC filing ↗ May 13, 2025	▾
13	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$83.93M 691,732 shares	0.02%	+130.19K(+23.20%)Added	SEC filing ↗ May 13, 2025	▾
14	NORGES BANK CIK 1374170 · Amended · View history	$73.07M 602,224 shares	0.01%	+74.31K(+14.10%)Added	SEC filing ↗ May 13, 2025	▾
15	Situational Awareness LP CIK 2045724 · View history	$71.19M 586,717 shares	13.04%	+586.72KNew	SEC filing ↗ May 14, 2025	▾
16	Fisher Asset Management, LLC CIK 850529 · View history	$70.80M 583,452 shares	0.03%	-111.29K(-16.00%)Reduced	SEC filing ↗ May 14, 2025	▾
17	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$62.51M 515,169 shares	0.01%	-8.51K(-1.60%)Reduced	SEC filing ↗ May 14, 2025	▾
18	WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history	$59.39M 489,413 shares	0.01%	+54.61K(+12.60%)Added	SEC filing ↗ May 13, 2025	▾
19	GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history	$58.52M 482,256 shares	0.01%	+208.91K(+76.40%)Added	SEC filing ↗ May 16, 2025	▾
20	NORTHERN TRUST CORP CIK 73124 · View history	$57.22M 471,540 shares	0.01%	-7.94K(-1.70%)Reduced	SEC filing ↗ May 13, 2025	▾

Showing 20 / 477 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

477

Cancelled or null records excluded

Disclosed shares

47,036,909

Not deduplicated across managers

Disclosed value

$5.70B

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.

ONTO INNOVATION INC. · Q1 2025

Explore all 477 reporting institutions.

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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.