Picton Mahoney Asset Management’s Onto Innovation ONTO Stock Holding History

Picton Mahoney Asset 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 Q1	$4.55M	Buy	+22,180	New	+$4.54M	0.03%	380
2025 Q2	–	Sell	-324	Closed	-$39K	–	1118
2025 Q1	$39K	Sell	324 -49,731	-99%	-$8.37M	﹤0.01%	471
2024 Q4	$8.34M	Buy	50,055 +4,639	+10%	+$848K	0.17%	140
2024 Q3	$9.43M	Buy	45,416 +5,714	+14%	+$1.15M	0.31%	105
2024 Q2	$8.72M	Sell	39,702 -302	-0.8%	-$62.4K	0.34%	110
2024 Q1	$7.25M	Sell	40,004 -11,408	-22%	-$1.93M	0.22%	121
2023 Q4	$7.86M	Buy	51,412 +24,902	+94%	+$3.35M	0.21%	103
2023 Q3	$3.38M	Buy	+26,510	New	+$3.15M	0.1%	166

Other funds holding ONTO

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

PCMI

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

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

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

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Picton Mahoney Asset Management's ONTO Position: Q1 2026 in Review

Picton Mahoney Asset Management opened a new position in Onto Innovation (ONTO) in Q1 2026: 22,180 shares worth $4.55M. The stake represents 0.03% of the portfolio and ranks #380 among its holdings. This is a return to the name: Picton Mahoney Asset Management previously reported a position in ONTO as recently as Q1 2025.

Picton Mahoney Asset Management first reported a position in ONTO in Q3 2023 and has held it in 8 quarters since. The position peaked at $9.43M in Q3 2024. 578 funds tracked by Wall St. Rank hold ONTO as of Q1 2026.

Picton Mahoney Asset Management held 22,180 shares of Onto Innovation worth $4.55M as of Q1 2026.
Onto Innovation was a new Picton Mahoney Asset Management position in Q1 2026.
Onto Innovation made up 0.03% of Picton Mahoney Asset Management's portfolio in Q1 2026, its #380 holding.
Picton Mahoney Asset Management first reported a position in Onto Innovation in Q3 2023 and has held it in 8 quarters since.
Picton Mahoney Asset Management's Onto Innovation position peaked at $9.43M in Q3 2024.
578 funds tracked by Wall St. Rank held Onto Innovation as of Q1 2026.

Based on Picton Mahoney Asset Management's 13F filing for Q1 2026, filed 13 May 2026.