Question 1

How many shares of ONTO does STATE OF WISCONSIN INVESTMENT BOARD own?

Accepted Answer

As of 2026-Q2, STATE OF WISCONSIN INVESTMENT BOARD holds 55,298 shares of ONTO (ONTO INNOVATION INC).

Question 2

What is STATE OF WISCONSIN INVESTMENT BOARD's ONTO position worth?

Accepted Answer

As of 2026-Q2, STATE OF WISCONSIN INVESTMENT BOARD's ONTO position is worth $20.9M.

Question 3

Is STATE OF WISCONSIN INVESTMENT BOARD buying or selling ONTO?

Accepted Answer

In 2026-Q2, STATE OF WISCONSIN INVESTMENT BOARD decreased their ONTO position (-12.7% change in shares).

Question 4

When did STATE OF WISCONSIN INVESTMENT BOARD first buy ONTO?

Accepted Answer

Based on available 13F filings, STATE OF WISCONSIN INVESTMENT BOARD first reported a position in ONTO in 2024-Q3. They have held the position across 27 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	55,298	-12.7%	$20.9M	0.0%	$378.45	0
2026-Q1	Decreased	63,331	-5.4%	$13M	0.0%	$207.50	0
2025-Q4	Increased	66,916	+9.3%	$10.6M	0.0%	$160.01	30
2025-Q3	Decreased	61,235	-0.1%	$7.9M	0.0%	$130.40	0
2025-Q2	Decreased	61,275	-6.4%	$6.2M	0.0%	$98.88	0
2025-Q1	Increased	65,445	+9.5%	$7.9M	0.0%	$122.07	30
2024-Q4	Increased	59,778	+13.4%	$10M	0.0%	$167.80	31
2024-Q3	Decreased	52,700	-2.7%	$10.9M	0.0%	$215.37	0