Onto Innovation Inc. Insider Trading

ONTO

Last 12 months

Insiders sold 902K and bought nothing on the open market.

All of the selling was scheduled in advance under 10b5-1 plans. The last open-market buy by an executive or director was in Nov 2008.

Net open-market

−902K

0 buys · 2 sales

Under a 10b5-1 plan

100%

of the value sold

Insiders who bought / sold

0 / 2

executives and directors

Last open-market buy

Nov 2008

Nov 14, 2008

Get an email when ONTO's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Sep 29	David Brian Miller Director	Sold10b5-1 plan	2,000	$300.00	600K	16%	Form 4
Aug 21	Susan D Lynch Director	Sold10b5-1 plan	1,000	$302.30	302K	27%	Form 4
Feb 13, 2025	Srinivas Vedula SVP, Customer Success	Sold10b5-1 plan	238	$169.58	40K	1.5%	Form 4
Jan 21, 2025	Michael P Plisinski CEO	Sold10b5-1 plan	35,000	$219.19	$7.67M	19%	Form 4
Jan 16, 2025	Michael P Plisinski CEO	Sold10b5-1 plan 2 parts	30,000	$211.24 average	$6.34M	14%	Form 4
Jan 15, 2025	Srinivas Vedula SVP, Customer Success	Sold10b5-1 plan	827	$205.00	170K	5.2%	Form 4
Jan 14, 2025	Michael P Plisinski CEO	Sold10b5-1 plan 2 parts	20,000	$200.19 average	$4M	8.5%	Form 4
Nov 15, 2024	Mark Slicer Chief Financial Officer	Sold10b5-1 plan	1,100	$160.41	176K	9.1%	Form 4

Sep 2910b5-1 plan
David Brian Miller
Director · sold 2,000 at $300.00
600K
16% of stake
Aug 2110b5-1 plan
Susan D Lynch
Director · sold 1,000 at $302.30
302K
27% of stake
Feb 13, 202510b5-1 plan
Srinivas Vedula
SVP, Customer Success · sold 238 at $169.58
40K
1.5% of stake
Jan 21, 202510b5-1 plan
Michael P Plisinski
CEO · sold 35,000 at $219.19
$7.67M
19% of stake
Jan 16, 202510b5-1 plan
Michael P Plisinski
CEO · sold 30,000 at avg $211.24
$6.34M
14% of stake
Jan 15, 202510b5-1 plan
Srinivas Vedula
SVP, Customer Success · sold 827 at $205.00
170K
5.2% of stake
Jan 14, 202510b5-1 plan
Michael P Plisinski
CEO · sold 20,000 at avg $200.19
$4M
8.5% of stake
Nov 15, 202410b5-1 plan
Mark Slicer
Chief Financial Officer · sold 1,100 at $160.41
176K
9.1% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch ONTO, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

ONTO is in 149 US ETFs. The largest of them, with ONTO's weight in each:

Spot a number that looks wrong? Check it in ONTO's SEC filings or

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Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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