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Ken Griffin's Onto Innovation Inc. (ONTO) position

Yes: as of Q1 2026, Ken Griffin holds 297K shares of ONTO worth $61M (0.0% of the disclosed portfolio). Last quarter the position was increased by 113.7%. First disclosed Q2 2021.
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Current value
$61M
Shares held
297K
% of portfolio
0.0%
Est. average buy price (i)
$159.01
est. since Q2 2025
Quarter-end price
$205.07

Estimated trade prices

Average price in quarters with purchases
$149.27
Average prices in quarters with sales
  • Q4 2025: $141.98 (253K shares sold)
  • Q1 2025: $168.38 (21K shares sold)
  • Q3 2024: $201.83 (143K shares sold)
  • Q1 2024: $168.90 (12K shares sold)
  • Q4 2022: $71.84 (77K shares sold)

ONTO price vs Griffin's position

1Y 3Y 5Y MAX
Dates
$60$200$40020222023202420252026New position of 34K shares · Q1 2022. Average closing price $88.92 · Price range $73.98–$105.9634KsharespurchasedAdded 8K shares (22.8%) · Q2 2022. Average closing price $74.00 · Price range $67.28–$84.848KsharespurchasedAdded 60K shares (146.2%) · Q3 2022. Average closing price $73.47 · Price range $61.19–$89.4360KsharespurchasedSold 77K shares (75.5%) · Q4 2022. Average closing price $71.84 · Price range $59.04–$84.7077KsharessoldNew position of 59K shares · Q2 2023. Average closing price $95.43 · Price range $78.50–$116.4759KsharespurchasedNew position of 32K shares · Q4 2023. Average closing price $134.52 · Price range $111.16–$156.7032KsharespurchasedSold 12K shares (38.0%) · Q1 2024. Average closing price $168.90 · Price range $136.19–$196.6112KsharessoldAdded 127K shares (638.2%) · Q2 2024. Average closing price $206.70 · Price range $169.39–$233.63127KsharespurchasedSold 143K shares (96.9%) · Q3 2024. Average closing price $201.83 · Price range $158.45–$238.04143KsharessoldAdded 19K shares (427.9%) · Q4 2024. Average closing price $182.71 · Price range $158.54–$224.9419KsharespurchasedSold 21K shares (86.9%) · Q1 2025. Average closing price $168.38 · Price range $121.34–$224.5021KsharessoldAdded 102K shares (35.4%) · Q3 2025. Average closing price $107.19 · Price range $90.00–$136.73102KsharespurchasedSold 253K shares (64.5%) · Q4 2025. Average closing price $141.98 · Price range $121.34–$168.53253KsharessoldAdded 158K shares (113.7%) · Q1 2026. Average closing price $204.79 · Price range $165.87–$225.33158Ksharespurchased← Earlier —1 purchase
Average closing price · filing quarter
$204.79
Price range · filing quarter
$165.87 – $225.33
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Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 Added +158K +$32M +113.7% 297K May 15, 2026
Q4 2025 Reduced −253K −$36M −64.5% 139K Feb 17, 2026
Q3 2025 Added +102K +$11M +35.4% 391K Nov 14, 2025
Q2 2025 First covered – – – 289K Aug 14, 2025
Q1 2025 Reduced −21K −$3.5M −86.9% 3K May 15, 2025
Q4 2024 Added +19K +$3.5M +427.9% 24K Feb 14, 2025
Q3 2024 Reduced −143K −$29M −96.9% 5K Nov 14, 2024
Q2 2024 Added +127K +$26M +638.2% 147K Aug 14, 2024
Q1 2024 Reduced −12K −$2.1M −38.0% 20K May 15, 2024
Q4 2023 New +32K +$4.3M – 32K Feb 14, 2024
Q2 2023 New +59K +$5.6M – 59K Aug 14, 2023
Q4 2022 Reduced −77K −$5.5M −75.5% 25K Feb 14, 2023
Q3 2022 Added +60K +$4.4M +146.2% 102K Nov 14, 2022
Q2 2022 Added +8K +$567K +22.8% 41K Aug 15, 2022
Q1 2022 New +34K +$3.0M – 34K May 16, 2022
Q2 2021 New +20K +$1.4M – 20K Aug 16, 2021
Data through Q1 2026 · filed May 15, 2026
16 grouped rows from 16 quarters

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Common questions

Does Ken Griffin own ONTO?

Yes. As of Q1 2026, Ken Griffin disclosed 297K shares of ONTO, worth $61M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Ken Griffin buy ONTO?

Ken Griffin first disclosed a ONTO position in Q2 2021; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Ken Griffin sell ONTO?

The quarter-by-quarter table above shows each sale and reduction Ken Griffin disclosed in ONTO. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of ONTO does Ken Griffin own?

Ken Griffin disclosed 297K shares of ONTO as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Ken Griffin pay for ONTO?

Ken Griffin began building the ONTO position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.