Insider trading

Period: 120 months Stock: ONTO + Add filter Clear all
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When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

169 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

169 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

169 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

169 decisions over 120 months
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
169 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
169 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

169 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
29 Sep 2026
Sold on a plan
$600.00K 2,000 at 300.00
15.8%
Planned (10b5-1)
21 Aug 2026
Lynch Susan D Director
Sold on a plan
$302.30K 1,000 at 302.30
27.1%
Planned (10b5-1)
13 Feb 2025
Vedula Srinivas SVP, Customer Success
Sold on a plan
$40.36K 238 at 169.58
1.5%
Planned (10b5-1)
21 Jan 2025
Sold on a plan
$7.67M 35,000 at 219.19
18.9%
Planned (10b5-1)
16 Jan 2025
Sold on a plan 2×
$6.34M 30,000 at 211.24
13.9%
Planned (10b5-1)
15 Jan 2025
Vedula Srinivas SVP, Customer Success
Sold on a plan
$169.54K 827 at 205.00
5.2%
Planned (10b5-1)
14 Jan 2025
Sold on a plan 2×
$4.00M 20,000 at 200.19
8.5%
Planned (10b5-1)
15 Nov 2024
Slicer Mark Chief Financial Officer
Sold on a plan
$176.45K 1,100 at 160.41
9.1%
Planned (10b5-1)
3 Sep 2024
Vedula Srinivas SVP, Customer Success
Sold on a plan
$264.23K 1,275 at 207.24
7.4%
Planned (10b5-1)
10 Jun 2024
Vedula Srinivas SVP, Customer Success
Sold on a plan
$317.11K 1,486 at 213.40
7.9%
Planned (10b5-1)
7 Jun 2024
Slicer Mark Chief Financial Officer
Sold on a plan
$112.71K 519 at 217.17
4.1%
Planned (10b5-1)
6 Jun 2024
Slicer Mark Chief Financial Officer
Sold on a plan
$114.81K 519 at 221.21
4.0%
Planned (10b5-1)
20 Mar 2024
Sold on a plan 6×
$7.02M 40,000 at 175.48
14.5%
Planned (10b5-1)
18 Mar 2024
OH Yoon Ah VP, General Counsel & Corp Sec
Sold on a plan
$303.30K 1,685 at 180.00
10.2%
Planned (10b5-1)
15 Mar 2024
OH Yoon Ah VP, General Counsel & Corp Sec
Sold on a plan
$467.08K 2,685 at 173.96
13.9%
Planned (10b5-1)
13 Feb 2024
Sold at will
$477.37K 2,800 at 170.49
23.7%
Not planned
15 Sep 2023
Fiordalice Robert SVP & GM, Metrology BU
Sold on a plan 5×
$882.44K 7,049 at 125.19
52.1%
Sold half or more
15 Sep 2023
Slicer Mark Chief Financial Officer
Sold on a plan 4×
$376.04K 3,005 at 125.14
18.6%
Planned (10b5-1)
1 Sep 2023
Vedula Srinivas SVP, Customer Success
Sold at will
$201.25K 1,469 at 137.00
7.6%
Not planned
21 Aug 2023
Sold on a plan 5×
$3.50M 31,000 at 112.85
11.0%
Planned (10b5-1)
15 Jun 2023
Jin Ju SVP & GM, IBU
Sold at will
$339.80K 3,231 at 105.17
24.0%
Not planned
5 Jun 2023
Jin Ju SVP & GM, IBU
Sold at will
$132.71K 1,232 at 107.72
8.4%
Not planned
26 May 2023
Fiordalice Robert SVP, GM MBU
Sold on a plan
$92.55K 846 at 109.40
5.9%
Planned (10b5-1)
23 May 2023
Sold at will 2×
$498.45K 5,000 at 99.69
29.7%
Not planned
18 May 2023
Fiordalice Robert SVP, GM MBU
Sold on a plan
$78.98K 780 at 101.25
5.1%
Planned (10b5-1)
17 May 2023
Fiordalice Robert SVP, GM MBU
Sold on a plan
$74.65K 768 at 97.20
4.8%
Planned (10b5-1)
16 May 2023
Jin Ju SVP & GM, IBU
Sold at will
$152.29K 1,603 at 95.00
9.8%
Not planned
15 May 2023
Fiordalice Robert SVP, GM MBU
Sold on a plan
$62.32K 669 at 93.15
4.0%
Planned (10b5-1)
5 Aug 2022
Fiordalice Robert Sr. Vice President & GM, MBU
Sold, plan not stated
$58.98K 662 at 89.10
4.9%
15 Feb 2022
Rhine Bruce C Director
Sold, plan not stated 3×
$5.48M 61,055 at 89.78
94.6%
Sold half or more
14 Jan 2022
ROTH STEVEN R Sr VP & CFO
Sold, plan not stated
$525.00K 5,000 at 105.00
21.0%
8 Dec 2021
Rhine Bruce C Director
Sold, plan not stated
$2.22M 22,633 at 98.12
25.6%
7 Dec 2021
Sold, plan not stated
$535.76K 5,500 at 97.41
30.5%
19 Nov 2021
Vedula Srinivas Sr VP, Customer Success Group
Sold, plan not stated
$562.18K 6,225 at 90.31
28.2%
3 Nov 2021
ROTH STEVEN R Sr VP & CFO
Sold, plan not stated
$415.00K 5,000 at 83.00
17.4%
1 Nov 2021
Rhine Bruce C Director
Sold, plan not stated
$4.02M 50,000 at 80.36
36.1%
1 Nov 2021
BERLINGHIERI LEO Director
Sold, plan not stated
$424.53K 5,275 at 80.48
25.9%
6 Aug 2021
Plisinski Michael P Chief Executive Officer
Sold, plan not stated
$2.23M 29,592 at 75.34
12.0%
16 Jun 2021
Plisinski Michael P Chief Executive Officer
Sold, plan not stated
$127.91K 1,700 at 75.24
0.7%
15 Jun 2021
Rhine Bruce C Director
Sold, plan not stated
$322.89K 4,296 at 75.16
3.0%
15 Jun 2021
Plisinski Michael P Chief Executive Officer
Sold, plan not stated
$135.45K 1,800 at 75.25
0.7%
14 Jun 2021
Rhine Bruce C Director
Sold, plan not stated
$3.40M 45,303 at 75.10
24.1%
14 Jun 2021
Heidrich Kevin Sr. Vice President, Marketing
Sold, plan not stated 3×
$1.34M 17,816 at 74.96
46.5%
14 Jun 2021
Plisinski Michael P Chief Executive Officer
Sold, plan not stated
$520.17K 6,908 at 75.30
2.7%
11 Jun 2021
Rhine Bruce C Director
Sold, plan not stated
$30.08K 401 at 75.00
0.2%
24 May 2021
Rhine Bruce C Director · indirect
Sold, plan not stated
$1.97M 30,000 at 65.52
100%
Sold half or more
13 Apr 2021
Rhine Bruce C Director
Sold, plan not stated 2×
$1.22M 17,311 at 70.25
8.5%
12 Apr 2021
Rhine Bruce C Director
Sold, plan not stated 2×
$2.32M 32,689 at 71.01
13.8%
5 Apr 2021
ROTH STEVEN R Senior Vice President & CFO
Sold, plan not stated
$1.05M 15,000 at 70.00
34.2%
11 Feb 2021
Rhine Bruce C Director
Sold, plan not stated 2×
$8.84M 145,334 at 60.81
34.1%
Showing 1–50 of 169. Page 1 of 4 Older →