Ticker · CUSIP 683344105

ONTO

ONTO INNOVATION INC
Technology·Semiconductor Equipment & Materials
···Share
Holders (tracked)
16
Combined shares
6,113,145
Combined value
$857.74M
Last close
$267.15
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
16122024Q12025Q4
Price is +90.4% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

29 events
  1. Ken Griffin (Citadel Advisors) trimmed2026-02-17
    −252,516 shares · 2025Q4
    13F
  2. Two Sigma Investments trimmed2026-02-17
    −312,791 shares · 2025Q4
    13F
  3. Wellington Management trimmed2026-02-17
    −180,447 shares · 2025Q4
    13F
  4. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +45,826 shares · 2025Q4
    13F
  5. Larry Robbins (Glenview Capital) added2026-02-17
    +144,207 shares · 2025Q4
    13F
  6. AQR Capital Management added2026-02-17
    +467,587 shares · 2025Q4
    13F
  7. D.E. Shaw & Co. trimmed2026-02-17
    −485,621 shares · 2025Q4
    13F
  8. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −104,737 shares · 2025Q4
    13F
  9. Steve Cohen (Point72) added2026-02-17
    +99,555 shares · 2025Q4
    13F
  10. T. Rowe Price trimmed2026-02-17
    −95,797 shares · 2025Q4
    13F
  11. Ray Dalio (Bridgewater Associates) added2026-02-13
    +29,115 shares · 2025Q4
    13F
  12. Norges Bank (Norway SWF) opened position2026-02-10
    +664,755 shares · 2025Q4
    13F
  13. Ken Fisher (Fisher Asset Mgmt) added2026-02-09
    +45,997 shares · 2025Q4
    13F
  14. First Eagle Investment Management added2026-02-04
    +4,175 shares · 2025Q4
    13F
  15. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −151,273 shares · 2025Q3
    13F
  16. AQR Capital Management trimmed2025-11-14
    −185,896 shares · 2025Q3
    13F
  17. Izzy Englander (Millennium Mgmt) trimmed2025-11-14
    −122,141 shares · 2025Q3
    13F
  18. Steve Cohen (Point72) added2025-11-14
    +279,642 shares · 2025Q3
    13F
  19. Two Sigma Investments trimmed2025-11-14
    −207,892 shares · 2025Q3
    13F
  20. D.E. Shaw & Co. added2025-11-14
    +8,808 shares · 2025Q3
    13F
  21. T. Rowe Price added2025-11-14
    +256,933 shares · 2025Q3
    13F
  22. Wellington Management added2025-11-14
    +1,292,772 shares · 2025Q3
    13F
  23. Larry Robbins (Glenview Capital) opened position2025-11-14
    +270,605 shares · 2025Q3
    13F
  24. Norges Bank (Norway SWF) exited2025-11-13
    −712,979 shares · 2025Q3
    13F
  25. Renaissance Technologies exited2025-11-13
    −76,774 shares · 2025Q3
    13F
  26. Ray Dalio (Bridgewater Associates) trimmed2025-11-13
    −126,593 shares · 2025Q3
    13F
  27. Ken Fisher (Fisher Asset Mgmt) added2025-11-12
    +118,642 shares · 2025Q3
    13F
  28. Norges Bank (Norway SWF) trimmed2025-11-12
    −1,310 shares · 2024Q3
    13F
  29. First Eagle Investment Management opened position2025-11-12
    +2,500 shares · 2025Q3
    13F

Insider activity

No insider transactions in the last 30 days.
View full insider history for ONTO →
Follow-the-investor returns
If you'd copied each holder of ONTO…
Cost basis inferred from 13F share-delta history. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
T. Rowe Price2019Q4$16.15+1554.5%$181.7M
Ken Fisher (Fisher Asset Mgmt)2019Q4$62.75+325.8%$187.5M
Two Sigma Investments2019Q4$101.32+163.7%$23.1M
Izzy Englander (Millennium Mgmt)2019Q4$117.54+127.3%$132.2M
First Eagle Investment Management2021Q2$126.19+111.7%$1.8M
Wellington Management2019Q4$126.42+111.3%$325.5M
Steve Cohen (Point72)2024Q4$137.17+94.8%$102.8M
Larry Robbins (Glenview Capital)2025Q3$139.18+92.0%$110.8M
Ray Dalio (Bridgewater Associates)2024Q2$144.45+84.9%$24.9M
AQR Capital Management2019Q4$145.43+83.7%$164.5M
Paul Tudor Jones (Tudor Investment)2020Q4$148.78+79.6%$12.2M
Ken Griffin (Citadel Advisors)2019Q4$152.37+75.3%$6.9M
Ken Griffin (Citadel Advisors)2019Q4$152.37+75.3%$6.9M
Ken Griffin (Citadel Advisors)2019Q4$152.37+75.3%$6.9M
D.E. Shaw & Co.2019Q4$156.66+70.5%$138.2M
Norges Bank (Norway SWF)2020Q4$5780.28-95.4%$177.6M

Who moved on this name in 2025Q4

13F transactions reported for the latest quarter, grouped by direction.
New positions2
Added to6
Trimmed6
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
10
$11.27B
2022Q2
12
$14.03B
2022Q3
12
$30.7M
2022Q4
13
$604.8M
2023Q1
11
$892.3M
2023Q2
13
$1.24B
2023Q3
12
$1.25B
2023Q4
11
$1.21B
2024Q1
12
$1.56B
2024Q2
16
$1.71B
2024Q3
15
$449.8M
2024Q4
15
$316.8M
2025Q1
15
$257.4M
2025Q2
18
$498.6M
2025Q3
15
$694.5M
2025Q4
16
$857.7M
Congress members trading this stock
DateMemberTypeAmount rangeFiling
2025-05-12Rob BresnahanSell$1K – $15KPDF ↗
2025-05-09Rob BresnahanSell (P)$1K – $15KPDF ↗

Who owns ONTO

16 super-investors · 2025Q4
Tracked stake
6.11M
shares
Combined value
$858M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Added6Trim8
#ManagerSharesValue
1Wellington Management1.22M$192M
2Ken Fisher
Fisher Asset Mgmt
702.0K$111M
3Norges Bank
Norway SWF
664.8K$105M
4AQR Capital Management615.7K$97M
5D.E. Shaw & Co.517.2K$82M
6Izzy Englander
Millennium Mgmt
495.0K$78M
7Larry Robbins
Glenview Capital
414.8K$65M
8Steve Cohen
Point72
384.8K$61M
9Ken Griffin
Citadel Advisors
138.8K$22M
10Ray Dalio
Bridgewater Associates
93.1K$15M
11Two Sigma Investments86.5K$14M
12Paul Tudor Jones
Tudor Investment
45.8K$7M
13Ken Griffin
Citadel Advisors
25.7K$4M
14Ken Griffin
Citadel Advisors
23.6K$4M
15First Eagle Investment Management6.7K$1M
16T. Rowe Price680.3K$107K

Recent moves

20 transactions
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