Bares Capital Management’s Onto Innovation ONTO Stock Holding History

Bares 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
2025 Q3	$9.75M	Buy	+75,450	New	+$8.08M	0.9%	12
2024 Q3	–	Sell	-40,000	Closed	-$8.78M	–	26
2024 Q2	$8.78M	Sell	40,000 -39,000	-49%	-$8.06M	0.42%	27
2024 Q1	$14.3M	Sell	79,000 -33,000	-29%	-$5.57M	0.57%	22
2023 Q4	$17.1M	Hold	112,000	–	–	0.67%	20
2023 Q3	$14.3M	Sell	112,000 -25,000	-18%	-$2.97M	0.61%	24
2023 Q2	$16M	Sell	137,000 -75,000	-35%	-$7.16M	0.55%	22
2023 Q1	$18.6M	Buy	212,000 +9,300	+5%	+$754K	0.66%	18
2022 Q4	$13.8M	Sell	202,700 -25,000	-11%	-$1.8M	0.53%	24
2022 Q3	$14.6M	Buy	227,700 +25,000	+12%	+$1.84M	0.57%	23
2022 Q2	$14.1M	Buy	202,700 +25,000	+14%	+$1.85M	0.52%	28
2022 Q1	$15.4M	Buy	177,700 +17,500	+11%	+$1.56M	0.36%	28
2021 Q4	$16.2M	Buy	160,200 +7,499	+5%	+$647K	0.32%	27
2021 Q3	$11M	Buy	+152,701	New	+$11M	0.2%	30

Other funds holding ONTO

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return

PCMI

Paradigm Capital Management Inc Albany, New York $2.61B AUM 78.58% 1-Year Est. Return

GCM

Geneva Capital Management Milwaukee, Wisconsin $4.71B AUM 6.32% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return

Bares Capital Management's ONTO Position: Q3 2025 in Review

Bares Capital Management opened a new position in Onto Innovation (ONTO) in Q3 2025: 75,450 shares worth $9.75M. The stake represents 0.9% of the portfolio and ranks #12 among its holdings. This is a return to the name: Bares Capital Management previously reported a position in ONTO as recently as Q2 2024.

Bares Capital Management first reported a position in ONTO in Q3 2021 and has held it in 13 quarters since. The position peaked at $18.6M in Q1 2023. 476 funds tracked by Wall St. Rank hold ONTO as of Q3 2025.

Bares Capital Management held 75,450 shares of Onto Innovation worth $9.75M as of Q3 2025.
Onto Innovation was a new Bares Capital Management position in Q3 2025.
Onto Innovation made up 0.9% of Bares Capital Management's portfolio in Q3 2025, its #12 holding.
Bares Capital Management first reported a position in Onto Innovation in Q3 2021 and has held it in 13 quarters since.
Bares Capital Management's Onto Innovation position peaked at $18.6M in Q1 2023.
476 funds tracked by Wall St. Rank held Onto Innovation as of Q3 2025.

Based on Bares Capital Management's 13F filing for Q3 2025, filed 14 Nov 2025.