ONTO INNOVATION INC

Ticker: ONTO CUSIP: 683344105 Class: EQTY

DRIEHAUS CAPITAL MANAGEMENT LLC's Holding History (CIK: 0000938206)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 349,014 Value ($000) $55,095 Avg Close $142.02 Range $118.97 - $171.32

Q3 2025

Shares 100,470 Value ($000) $12,983 Avg Close $107.03 Range $89.40 - $142.77

Q3 2024

Shares 97,311 Value ($000) $20,198 Avg Close $201.83 Range $145.15 - $238.93

Q2 2024

Shares 535,769 Value ($000) $117,633 Avg Close $206.70 Range $166.65 - $238.13

Q1 2024

Shares 525,441 Value ($000) $95,147 Avg Close $168.90 Range $134.11 - $199.72

Q4 2023

Shares 569,911 Value ($000) $87,139 Avg Close $134.52 Range $108.98 - $158.50

Q3 2023

Shares 379,245 Value ($000) $48,361 Avg Close $118.86 Range $103.94 - $142.26

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	349,014	$55,095	$142.02	$118.97 - $171.32
Q3 2025	100,470	$12,983	$107.03	$89.40 - $142.77
Q3 2024	97,311	$20,198	$201.83	$145.15 - $238.93
Q2 2024	535,769	$117,633	$206.70	$166.65 - $238.13
Q1 2024	525,441	$95,147	$168.90	$134.11 - $199.72
Q4 2023	569,911	$87,139	$134.52	$108.98 - $158.50
Q3 2023	379,245	$48,361	$118.86	$103.94 - $142.26