ONTO INNOVATION INC (ONTO) Stock Institutional Trading Activity


ONTO INNOVATION INC (ONTO) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q3 2025), investors with some of the largest reported share count changes include Bares Capital Management, First Eagle U.S. Value, Sequoia Financial Advisors, and Renaissance Technologies LLC. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q3 2025Bares Capital ManagementBuy35,45075,450$9,749,649
Q3 2025First Eagle U.S. ValueSell-2,6032,500$323,050
Q3 2025Sequoia Financial AdvisorsBuy1,67117,698$2,286,936
Q2 2025Sequoia Financial AdvisorsBuy1,08916,027$1,617,606
Q2 2025Renaissance Technologies LLCBuy73,17476,774$7,748,800
Q1 2025Sequoia Financial AdvisorsBuy91814,938$1,812,577
Q4 2024Renaissance Technologies LLCSell-14,3743,600$600,012
Q4 2024First Eagle U.S. ValueBuy2505,103$850,517
Q4 2024Sequoia Financial AdvisorsSell-6,09314,020$2,336,714
Q3 2024First Eagle U.S. ValueSell-16,2414,853$1,007,289
Q3 2024Renaissance Technologies LLCSell-8,80017,974$3,730,683
Q3 2024Sequoia Financial AdvisorsBuy48020,113$4,174,654
Q2 2024Bares Capital ManagementSell-39,00040,000$8,782,400
Q2 2024Sequoia Financial AdvisorsBuy52419,633$4,310,622
Q2 2024First Eagle U.S. ValueSell-23,51421,094$4,631,399
Q2 2024Renaissance Technologies LLCBuy18,90026,774$5,878,499
Q1 2024Bares Capital ManagementSell-33,00079,000$14,305,320
Q1 2024Sequoia Financial AdvisorsSell-72119,109$3,460,258
Q1 2024First Eagle U.S. ValueBuy3,21044,608$8,077,617
Q4 2023Sequoia Financial AdvisorsBuy17,56419,830$3,032,007
Q4 2023First Eagle U.S. ValueSell-38,84741,398$6,329,755
Q3 2023Bares Capital ManagementSell-25,000112,000$14,282,240
Q3 2023Renaissance Technologies LLCBuy4657,874$1,004
Q3 2023Sequoia Financial AdvisorsBuy1542,266$288,961
Q3 2023First Eagle U.S. ValueSell-9,60680,245$10,232,842
Q2 2023Bares Capital ManagementSell-75,000137,000$15,956,390
Q2 2023Sequoia Financial AdvisorsBuy2,1122,112$245,985
Q2 2023First Eagle U.S. ValueBuy6,41089,851$10,464,946
Q1 2023Bares Capital ManagementBuy9,300212,000$18,630,560
Q1 2023First Eagle U.S. ValueBuy7,65883,441$7,332,795

Frequently asked questions about ONTO activity

  • Which institutional owners are buying ONTO?

    Institutional owners buying ONTO include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ONTO activity?

    "Buy" means an investor increased their reported position in ONTO compared to the prior reporting period. This reflects growing exposure to ONTO INNOVATION INC (ONTO) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ONTO increasing?

    Institutional interest in ONTO can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.