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Monolith Management’s Onto Innovation ONTO Stock Holding History

Monolith 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 		– Sell
-2,200
Closed -$347K – 38
2025
Q4 		$347K Sell
2,200
-90,805
-98% -$12.9M 0.13% 20
2025
Q3 		$12M Buy
+93,005
New +$9.95M 5.3% 7

Other funds holding ONTO

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Point72 Asset Management
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
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
VOYA Investment Management
VOYA Investment Management Atlanta, Georgia $96.1B AUM 40.06% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Monolith Management's ONTO Position: Q1 2026 in Review

Monolith Management sold out of Onto Innovation (ONTO) in Q1 2026, closing a stake of 2,200 shares — an estimated $347K sold.

Monolith Management first reported a position in ONTO in Q3 2025 and held it in 2 quarters. The position peaked at $12M in Q3 2025. 574 funds tracked by Wall St. Rank hold ONTO as of Q1 2026.

  • Monolith Management reported no remaining Onto Innovation position as of Q1 2026 after selling out during the quarter.
  • Monolith Management sold 2,200 Onto Innovation shares in Q1 2026, an estimated $347K.
  • Monolith Management first reported a position in Onto Innovation in Q3 2025 and held it in 2 quarters.
  • Monolith Management's Onto Innovation position peaked at $12M in Q3 2025.
  • 574 funds tracked by Wall St. Rank held Onto Innovation as of Q1 2026.

Based on Monolith Management's 13F filing for Q1 2026, filed 14 May 2026.