Onto Innovation

ONTO • NYSE

Onto Innovation is a semiconductors company in the technology sector on NYSE, led by Michael P. Plisinski, with a market cap of $7.9B. As of Q3 2025, 97% of shares are held by 464 institutional investors, with VANGUARD GROUP INC as the largest holder at 11.57%.

Chief Executive OfficerMichael P. Plisinski

Market Cap$7.9B

Semiconductors

Technology

Employees1.5K

Websiteontoinnovation.com

Country

United States of America

Overview

Overview of institutional ownership in ONTO as of Q3 2025 with a market cap of $6.3B

All Institutions

Institutions: 464
Value Held: $6.1B
Shares Held: 47.4M
Avg Position: $13.2M
Median Position: $922.2K

Hedge Funds

Hedge Funds: 60
Value Held: $757.6M
Shares Held: 5.9M
Avg Position: $12.6M
Median Position: $5.1M

Ownership Breakdown

Institutional (non-HF)

84.71%

$5.4B

Hedge Funds

11.96%

$757.6M

Retail & Other

3.33%

$210.7M

Based on market cap of $6.3B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in ONTO as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
VANGUARD GROUP INC Institution	Salim Ramji CEO	$732.3M 0.01% of portfolio	11.57% 5.7M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
B BlackRock, Inc. Institution	-	$673.7M 0.01% of portfolio	10.64% 5.2M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	Brent Walker Gledhill CEO	$256.1M 0.66% of portfolio	4.04% 2.0M shares	Q1 2025 Held for 8 months	$38.7B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$190.6M 0.01% of portfolio	3.01% 1.5M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
WELLINGTON MANAGEMENT CO LLP Long Only Manager	Edmund Wellington Iii President	$180.8M 0.03% of portfolio	2.85% 1.4M shares	Q4 2022 Held for 2y 11m	$571.21B
FRANKLIN RESOURCES INC Institution	Gregory E. Johnson CEO	$144.0M 0.04% of portfolio	2.27% 1.1M shares	Q3 2013 Held for 12y 2m	$395.56B
PARADIGM CAPITAL MANAGEMENT INC/NY Long Only Manager	Candace King Weir CEO	$143.8M 6.23% of portfolio	2.27% 1.1M shares	Q4 2019 Held for 5y 11m	$2.3B
GENEVA CAPITAL MANAGEMENT LTD/WI Long Only Manager	Jose Manuel Munoz Quiroga Managing Partner	$140.1M 2.40% of portfolio	2.21% 1.1M shares	Q1 2021 Held for 4y 8m	$5.8B
D D. E. Shaw & Co., Inc. Institution	-	$129.6M 0.11% of portfolio	2.05% 1.0M shares	Q2 2022 Held for 3y 5m	$115.81B
ING INVESTMENT MANAGEMENT LLC Insurance Manager	Robert Jay Presser Director	$112.0M 0.13% of portfolio	1.77% 868.6K shares	Q4 2016 Held for 8y 11m	$88.4B

Net Capital Flow

Institutional buying and selling activity for ONTO in Q3 2025

Net Flow: −$452.8M
Buyers: 189
Sellers: 205
Total Bought: +$1.1B
Total Sold: −$1.6B
Avg Position: $12.4M

Biggest Buyers

Institution	Net Bought	Current Position
WELLINGTON MANAGEMENT CO LLP Long Only Manager	+$167.1M +1.3M shares	$180.8M 1.4M shares
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Long Only Manager	+$114.1M +882.9K shares	$256.1M 2.0M shares
ING INVESTMENT MANAGEMENT LLC Insurance Manager	+$109.5M +849.7K shares	$112.0M 868.6K shares
FRANKLIN RESOURCES INC Institution	+$56.9M +440.0K shares	$144.0M 1.1M shares
MORGAN STANLEY RIA/Wealth	+$43.8M +338.6K shares	$102.1M 790.4K shares
VANGUARD GROUP INC Institution	+$38.0M +294.4K shares	$732.3M 5.7M shares
A Assenagon Asset Management S.A. Institution	+$37.5M +290.4K shares	$55.3M 428.0K shares
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	+$36.1M +279.6K shares	$36.9M 285.2K shares
SEGALL BRYANT & HAMILL Long Only Manager	+$33.2M +257.2K shares	$39.4M 305.2K shares
PRICE T ROWE ASSOCIATES INC /MD/ Long Only Manager	+$33.2M +256.9K shares	$100.3M 776.1K shares

Biggest Sellers

Institution	Net Sold	Current Position
B BlackRock, Inc. Institution	−$164.4M −1.3M shares	$673.7M 5.2M shares
Q Qube Research & Technologies Ltd Institution	−$100.2M −775.5K shares	$16.2M 125.7K shares
T T. Rowe Price Investment Management, Inc. Insurance Manager	−$99.4M −984.5K shares	Sold Off 0 shares
BARCLAYS PLC Institution	−$78.8M −609.5K shares	$12.0M 93.1K shares
FMR LLC Institution	−$72.8M −563.4K shares	$107.3M 830.2K shares
R Rafferty Asset Management, LLC Institution	−$64.6M −639.6K shares	Sold Off 0 shares
BANK OF AMERICA CORP /DE/ Institution	−$54.6M −422.7K shares	$17.6M 136.0K shares
C Cubist Systematic Strategies, LLC Institution	−$51.0M −505.7K shares	Sold Off 0 shares
B BNP PARIBAS ARBITRAGE, SA Institution	−$45.4M −351.5K shares	$27.7M 214.6K shares
UBS Group AG Institution	−$45.3M −350.9K shares	$81.8M 632.9K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited ONTO in Q3 2025

New Positions: 42
New Value: $242.6M
Exited Positions: 68
Exited Value: $376.6M

New Positions

Institution	Position Value
Junto Capital Management LP Hedge Fund•Long/Short	$39.9M 308.4K shares
G GLENVIEW CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	$35.0M 270.6K shares
BRILLIANCE ASSET MANAGEMENT Ltd Hedge Fund•Value	$28.2M 218.6K shares
S SIRIOS CAPITAL MANAGEMENT L P Hedge Fund•Long/Short	$21.1M 163.2K shares
Channing Capital Management, LLC Long Only Manager	$16.8M 130.0K shares
Alta Park Capital, LP Hedge Fund•Long/Short	$16.3M 126.1K shares
A Andar Capital Management HK Ltd Institution	$14.2M 110.0K shares
M Monolith Management Ltd Institution	$12.0M 93.0K shares
T Tairen Capital Ltd Institution	$11.2M 86.3K shares
Granite Investment Partners, LLC Long Only Manager	$10.9M 84.1K shares

Exited Positions

Institution	Previous Position
T T. Rowe Price Investment Management, Inc. Insurance Manager	$99.4M 984.5K shares
R Rafferty Asset Management, LLC Institution	$64.6M 639.6K shares
C Cubist Systematic Strategies, LLC Institution	$51.0M 505.7K shares
VOLORIDGE INVESTMENT MANAGEMENT, LLC Hedge Fund•Multi-Strategy	$32.2M 318.7K shares
Stephens Investment Management Group LLC Long Only Manager	$18.4M 182.3K shares
P Port Capital LLC Hedge Fund•Value	$15.8M 156.6K shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$15.3M 151.3K shares
Quantbot Technologies LLC Hedge Fund•Quant	$14.4M 143.0K shares
Trexquant Investment LP Hedge Fund•Quant	$12.5M 123.6K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	$7.7M 76.8K shares

Options Activity

Institutions with the largest Call and Put options positions in ONTO as of Q3 2025

Call Positions: 14
Call Value: $79.4M
Put Positions: 14
Put Value: $36.5M

Call Positions

Institution	Position Value
CloudAlpha Capital Management Limited/Hong Kong Institution	$32.3M 2.5K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$11.6M 901.0 contracts
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds	$8.7M 672.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$8.4M 650.0 contracts
J JANE STREET GROUP, LLC Institution	$6.9M 533.0 contracts
T Twin Tree Management, LP Hedge Fund•Vol Arbitrage	$4.0M 310.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$2.5M 192.0 contracts
P PEAK6 LLC Institution	$2.4M 189.0 contracts
W WOLVERINE TRADING, LLC Institution	$1.5M 115.0 contracts
Walleye Trading LLC RIA/Wealth	$452.3K 35.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$11.3M 877.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$10.3M 794.0 contracts
J JANE STREET GROUP, LLC Institution	$4.8M 372.0 contracts
W WOLVERINE TRADING, LLC Institution	$4.1M 316.0 contracts
CAPITAL FUND MANAGEMENT S.A. Hedge Fund•Quant Macro	$1.8M 143.0 contracts
D D. E. Shaw & Co., Inc. Institution	$1.4M 111.0 contracts
Walleye Trading LLC RIA/Wealth	$1.2M 91.0 contracts
S Squarepoint Ops LLC Hedge Fund•Quant	$400.6K 31.0 contracts
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	$400.6K 31.0 contracts
P PEAK6 LLC Institution	$387.7K 30.0 contracts

Most Committed Institutions

Institutions with ONTO as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
BRILLIANCE ASSET MANAGEMENT Ltd Hedge Fund•Value	Choi Kyong Chul CEO	15.07% $28.2M	0.45% 218.6K shares	Q3 2025 Held for 2 months	$187.5M
A Andar Capital Management HK Ltd Institution	-	14.38% $14.2M	0.22% 110.0K shares	Q3 2025 Held for 2 months	$98.9M
AI-Squared Management Ltd Private Equity	-	8.11% $7.8M	0.12% 60.3K shares	Q3 2025 Held for 2 months	$96.0M
TT International Asset Management LTD Hedge Fund•Multi-Strategy	Eric Gunn Mackay Managing Partner	7.80% $38.9M	0.61% 300.7K shares	Q3 2025 Held for 2 months	$498.0M
PARADIGM CAPITAL MANAGEMENT INC/NY Long Only Manager	Candace King Weir CEO	6.23% $143.8M	2.27% 1.1M shares	Q4 2019 Held for 5y 11m	$2.3B
D Divisar Capital Management LLC Hedge Fund•Long/Short	Steven Richard Baughman CEO	6.16% $22.6M	0.36% 175.1K shares	Q2 2022 Held for 3y 5m	$367.6M
M Monolith Management Ltd Institution	-	5.30% $12.0M	0.19% 93.0K shares	Q3 2025 Held for 2 months	$226.8M
4D Advisors, LLC Hedge Fund•Long/Short	Kurt F Graeber Managing Partner	4.82% $9.0M	0.14% 70.0K shares	Q4 2024 Held for 11 months	$187.8M
SG Capital Management LLC Hedge Fund•Event Driven	Glen Schneider President	3.51% $35.0M	0.55% 270.8K shares	Q3 2025 Held for 2 months	$998.2M
V VALUE HOLDINGS MANAGEMENT CO. LLC Hedge Fund•Value	Timothy Joseph Curro Managing Partner	3.16% $19.7M	0.31% 152.4K shares	Q4 2016 Held for 8y 11m	$623.8M

Hedge Fund Spotlight

Discover hedge funds investing in ONTO

Polymer Capital Management LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerEric Jay Kemnitz

Portfolio Value: $755.2M
Positions: 704
Last Reported: Q3 2025

Sector Allocation

Position in Onto Innovation

Market Value: $5.0M
Shares Held: 38.6K
Portfolio Weight: 0.66%
Owned Since: 2025-Q2

Top Holding	Sector	Market Value	Weight
1 Lumentum Holdings Inc. LITE	Communication Equipment Technology	$19.6M	2.59%
2 Nvidia NVDA	Semiconductors Technology	$18.8M	2.49%
3 Tesla, Inc. TSLA	Auto - Manufacturers Consumer Cyclical	$17.6M	2.33%