Driehaus Capital Management’s Onto Innovation ONTO Stock Holding History

Driehaus Capital Management’s Portfolio ONTO Stock Details ONTO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$134M	Buy	354,650 +34,116	+11%	+$9.65M	0.78%	25
2026 Q1	$65.7M	Sell	320,534 -28,480	-8%	-$5.83M	0.48%	60
2025 Q4	$55.1M	Buy	349,014 +248,544	+247%	+$35.3M	0.37%	88
2025 Q3	$13M	Buy	+100,470	New	+$10.8M	0.09%	247
2024 Q4	–	Sell	-97,311	Closed	-$20.2M	–	436
2024 Q3	$20.2M	Sell	97,311 -438,458	-82%	-$88.5M	0.17%	169
2024 Q2	$118M	Buy	535,769 +10,328	+2%	+$2.13M	1.14%	14
2024 Q1	$95.1M	Sell	525,441 -44,470	-8%	-$7.51M	0.95%	18
2023 Q4	$87.1M	Buy	569,911 +190,666	+50%	+$25.6M	1.05%	14
2023 Q3	$48.4M	Buy	+379,245	New	+$45.1M	0.63%	36

Other funds holding ONTO

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

PCMI

Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Driehaus Capital Management's ONTO Position: Q2 2026 in Review

Driehaus Capital Management increased its Onto Innovation (ONTO) stake by 11% in Q2 2026, buying an estimated $9.65M and bringing the position to 354,650 shares worth $134M. The position accounts for 0.78% of the portfolio, ranked #25.

Driehaus Capital Management first reported a position in ONTO in Q3 2023 and has held it in 9 quarters since. 690 funds tracked by Wall St. Rank hold ONTO as of Q2 2026.

Driehaus Capital Management held 354,650 shares of Onto Innovation worth $134M as of Q2 2026.
Driehaus Capital Management bought 34,116 Onto Innovation shares in Q2 2026, an estimated $9.65M.
Onto Innovation made up 0.78% of Driehaus Capital Management's portfolio in Q2 2026, its #25 holding.
Driehaus Capital Management first reported a position in Onto Innovation in Q3 2023 and has held it in 9 quarters since.
690 funds tracked by Wall St. Rank held Onto Innovation as of Q2 2026.

Based on Driehaus Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.