William Blair & Company
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William Blair & Company’s Onto Innovation ONTO Stock Holding History

William Blair & Company’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
Q2 		$330K Buy
+873
New +$247K ﹤0.01% 1381

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PCMI
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Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

William Blair & Company's ONTO Position: Q2 2026 in Review

William Blair & Company opened a new position in Onto Innovation (ONTO) in Q2 2026: 873 shares worth $330K. The stake represents ﹤0.01% of the portfolio and ranks #1381 among its holdings.

688 funds tracked by Wall St. Rank hold ONTO as of Q2 2026.

  • William Blair & Company held 873 shares of Onto Innovation worth $330K as of Q2 2026.
  • Onto Innovation was a new William Blair & Company position in Q2 2026.
  • Onto Innovation made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1381 holding.
  • 688 funds tracked by Wall St. Rank held Onto Innovation as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.