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 273 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	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$338.23M 1,098,556 shares	0.02%	-335.16K(-23.40%)Reduced	SEC filing ↗ Nov 6, 2026	▾
02	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC CIK 1644956 · View history	$200.76M 652,188 shares	0.65%	-13.19K(-2.00%)Reduced	SEC filing ↗ Nov 6, 2026	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$179.74M 583,932 shares	0.03%	-5.42K(-0.90%)Reduced	SEC filing ↗ Nov 4, 2026	▾
04	Thrivent Financial for Lutherans CIK 314984 · View history	$174.29M 566,200 shares	0.29%	-20.52K(-3.50%)Reduced	SEC filing ↗ Nov 5, 2026	▾
05	Pictet Asset Management Holding SA CIK 1993888 · View history	$157.46M 511,652 shares	0.15%	-204.56K(-28.60%)Reduced	SEC filing ↗ Nov 3, 2026	▾
06	Allspring Global Investments Holdings, LLC CIK 1890906 · View history	$135.09M 429,026 shares	0.21%	-6.33K(-1.50%)Reduced	SEC filing ↗ Nov 4, 2026	▾
07	Bank of New York Mellon Corp CIK 1390777 · View history	$121.84M 395,822 shares	0.02%	-32.38K(-7.60%)Reduced	SEC filing ↗ Nov 5, 2026	▾
08	Fisher Asset Management, LLC CIK 850529 · View history	$121.12M 393,466 shares	0.03%	-98.37K(-20.00%)Reduced	SEC filing ↗ Nov 6, 2026	▾
09	TimesSquare Capital Management, LLC CIK 1313816 · View history	$86.68M 281,597 shares	1.42%	+64.48K(+29.70%)Added	SEC filing ↗ Nov 3, 2026	▾
10	Artemis Investment Management LLP CIK 1535385 · View history	$75.80M 246,262 shares	0.66%	+60.65K(+32.70%)Added	SEC filing ↗ Oct 8, 2026	▾
11	BARCLAYS PLC CIK 312069 · View history	$69.62M 226,162 shares	0.02%	+165.35K(+271.90%)Added	SEC filing ↗ Nov 6, 2026	▾
12	GF FUND MANAGEMENT CO. LTD. CIK 2057060 · View history	$56.33M 183,000 shares	0.73%	-45.00K(-19.70%)Reduced	SEC filing ↗ Oct 26, 2026	▾
13	PRINCIPAL FINANCIAL GROUP INC CIK 1126328 · View history	$44.78M 145,469 shares	0.02%	-22.15K(-13.20%)Reduced	SEC filing ↗ Nov 2, 2026	▾
14	FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ CIK 1009016 · View history	$41.74M 135,605 shares	0.21%	+8.31K(+6.50%)Added	SEC filing ↗ Oct 15, 2026	▾
15	BRAUN STACEY ASSOCIATES INC CIK 872080 · View history	$37.86M 122,987 shares	1.09%	+122.99KNew	SEC filing ↗ Oct 19, 2026	▾
16	Robeco Schweiz AG CIK 1418427 · View history	$37.76M 122,670 shares	0.68%	-24.53K(-16.70%)Reduced	SEC filing ↗ Oct 23, 2026	▾
17	Retirement Systems of Alabama CIK 1593051 · View history	$31.80M 103,294 shares	0.09%	+34.86K(+50.90%)Added	SEC filing ↗ Nov 4, 2026	▾
18	Russell Investments Group, Ltd. CIK 1692234 · View history	$29.98M 97,385 shares	0.02%	+7.09K(+7.90%)Added	SEC filing ↗ Nov 6, 2026	▾
19	Blue Grotto Capital, LLC CIK 1764725 · View history	$29.24M 95,000 shares	2.01%	+95.00KNew	SEC filing ↗ Nov 4, 2026	▾
20	Amundi CIK 1330387 · View history	$24.72M 80,295 shares	0.00%	+61.07K(+317.70%)Added	SEC filing ↗ Nov 6, 2026	▾

Showing 20 / 273 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

273

Cancelled or null records excluded

Disclosed shares

8,060,318

Not deduplicated across managers

Disclosed value

$2.46B

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. · Q3 2026

Explore all 273 reporting institutions.

This page includes 20 of 273 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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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.