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Insider Trading Intelligence
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MP

Michael P. Plisinski

ONTO
CEO · ONTO INNOVATION INC. · CIK 0001325550
FILING MIX · LIFETIME28%/72%
BUYS
29
SELLS
75
TOTAL VALUE
$56.38M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
179,242
AVG SELL PX
$125.79
TRADE KIND
SHOWING 104 / 104
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
23 backtested trades · 8 horizons · 5 pending
Forward-return performance of every backtestable P/S trade by Michael P. Plisinski, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d23+21.74%+1.13%+1.55%-0.42%-0.67%—
14d23+39.13%+5.76%+1.92%+3.83%+6.50%—
30d23+60.87%-1.07%+1.09%-2.16%-0.23%—
60d23+39.13%+4.50%+0.75%+3.75%+7.17%—
90d23+21.74%+11.78%+2.58%+9.20%+15.60%—
180d23+21.74%+19.58%+11.54%+8.04%+11.97%—
1y23+43.48%+31.35%+16.09%+15.26%+5.02%—
2y23(5 pending)+27.78%+28.77%+25.93%+2.84%-14.04%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ONTO · 179,242 shares · as of Mar 3, 2026
080,650161,299241,949322,598202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 29 buys / 75 sellsCOVERAGE · 25 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
3,742$207.50$776.5K179,242Mar 3, 2026Mar 4, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
14,479——182,984Mar 2, 2026Mar 4, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
7,239——7,239Mar 2, 2026Mar 4, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
Chief Executive Officer
4,597——172,652Mar 1, 2026Mar 3, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,925$215.89$415.6K168,505Mar 1, 2026Mar 3, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
2,222$215.89$479.7K170,430Mar 1, 2026Mar 3, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
5,971——0Mar 1, 2026Mar 3, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
Chief Executive Officer
18,445——180,606Feb 14, 2026Feb 18, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
8,919$217.23$1.94M171,687Feb 14, 2026Feb 18, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
3,632$217.23$789.0K168,055Feb 14, 2026Feb 18, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
11,824——0Feb 14, 2026Feb 18, 2026 ↗View →
ONTO
ONTO INNOVATION INC.
SALEGRANT
Gift
25,000——162,161Dec 24, 2025Dec 29, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
11,606——11,606Mar 3, 2025Mar 5, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
23,212——187,161Mar 3, 2025Mar 5, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
1,925$145.66$280.4K163,949Mar 1, 2025Mar 3, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
11,825——0Feb 14, 2025Feb 19, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
3,812$176.55$673.0K165,874Feb 14, 2025Feb 19, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
11,435$176.55$2.02M169,686Feb 14, 2025Feb 19, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
CEO
23,650——181,121Feb 14, 2025Feb 19, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
CEO
19,048——166,681Feb 10, 2025Feb 12, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
9,210$183.28$1.69M157,471Feb 10, 2025Feb 12, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
9,524——0Feb 10, 2025Feb 12, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
2,859$183.28$524.0K147,633Feb 10, 2025Feb 12, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
35,000$219.19$7.67M150,492Jan 21, 2025Jan 22, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
29,900$211.24$6.32M185,592Jan 16, 2025Jan 21, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
100$212.11$21.2K185,492Jan 16, 2025Jan 21, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
1,732$201.26$348.6K215,492Jan 14, 2025Jan 15, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
18,268$200.09$3.66M217,224Jan 14, 2025Jan 15, 2025 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
6,270$173.96$1.09M264,878Mar 20, 2024Mar 22, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
2,914$178.16$519.2K235,492Mar 20, 2024Mar 22, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
4,344$172.83$750.8K271,148Mar 20, 2024Mar 22, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
1,816$177.04$321.5K238,406Mar 20, 2024Mar 22, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
2,060$174.79$360.1K262,818Mar 20, 2024Mar 22, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
22,596$176.00$3.98M240,222Mar 20, 2024Mar 22, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
11,943——275,492Mar 1, 2024Mar 5, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
5,971——5,971Mar 1, 2024Mar 5, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
3,812$173.08$659.8K263,549Feb 14, 2024Feb 16, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
9,211$180.01$1.66M267,361Feb 10, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
3,071$180.01$552.8K257,522Feb 10, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
CEO
19,050——276,572Feb 10, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
9,525——0Feb 10, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
4,032$164.76$664.3K247,762Feb 8, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
12,417——0Feb 8, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
CEO
24,834——272,596Feb 8, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
12,003$164.76$1.98M260,593Feb 8, 2024Feb 12, 2024 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
2,653$110.16$292.3K280,141Aug 21, 2023Aug 22, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
7,002$111.86$783.2K273,139Aug 21, 2023Aug 22, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
4,886$114.44$559.2K251,794Aug 21, 2023Aug 22, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
6,763$112.49$760.8K266,376Aug 21, 2023Aug 22, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE10b5-1
10b5-1 plan
9,696$113.76$1.10M256,680Aug 21, 2023Aug 22, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
23,650——282,794Feb 14, 2023Feb 15, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
11,824——11,824Feb 14, 2023Feb 15, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
11,825——11,825Feb 14, 2023Feb 15, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
3,091$80.90$250.1K259,144Feb 10, 2023Feb 13, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
12,087$82.30$994.8K241,430Feb 8, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
CEO
24,834——262,235Feb 8, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
4,029$82.30$331.6K237,401Feb 8, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
12,417——0Feb 8, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
15,604——0Feb 7, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
CEO
31,208——253,517Feb 7, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
5,114$84.31$431.2K222,309Feb 7, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
15,189$84.31$1.28M227,423Feb 7, 2023Feb 9, 2023 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
9,524——9,524Feb 10, 2022Feb 11, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
9,525——9,525Feb 10, 2022Feb 11, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
19,049——242,612Feb 10, 2022Feb 11, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
3,704$93.09$344.8K223,563Feb 8, 2022Feb 9, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
4,654$90.42$420.8K227,267Feb 7, 2022Feb 9, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASE
CEO
31,210——245,881Feb 7, 2022Feb 9, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
13,960$90.42$1.26M231,921Feb 7, 2022Feb 9, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
15,605——0Feb 7, 2022Feb 9, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
CEO
2,972$90.05$267.6K214,671Feb 6, 2022Feb 9, 2022 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
29,592$75.34$2.23M217,643Aug 6, 2021Aug 10, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,700$75.24$127.9K247,235Jun 16, 2021Jun 17, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,800$75.25$135.4K248,935Jun 15, 2021Jun 17, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
6,908$75.30$520.2K250,735Jun 14, 2021Jun 15, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
12,417——12,417Feb 8, 2021Feb 10, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
2,753$60.40$166.3K232,808Feb 8, 2021Feb 10, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
24,835——257,643Feb 8, 2021Feb 10, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
4,653$59.95$278.9K235,561Feb 7, 2021Feb 9, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
2,935$59.95$176.0K240,214Feb 6, 2021Feb 9, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
2,006$54.83$110.0K245,049Jan 27, 2021Jan 29, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,900$54.83$104.2K243,149Jan 27, 2021Jan 29, 2021 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
24,821$35.34$877.2K247,055Nov 4, 2020Nov 5, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
45,079$35.22$1.59M271,976Nov 3, 2020Nov 5, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
100$36.08$3.6K271,876Nov 3, 2020Nov 5, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,375$38.45$52.9K290,013Feb 8, 2020Feb 10, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,375$38.45$52.9K321,223Feb 8, 2020Feb 11, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
2,730$38.45$105.0K317,055Feb 8, 2020Oct 15, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
15,605——15,605Feb 7, 2020Feb 11, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
31,210——322,598Feb 7, 2020Feb 11, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
15,604——15,604Feb 7, 2020Feb 11, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
15,605——15,605Feb 7, 2020Oct 15, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
31,210——319,785Feb 7, 2020Oct 15, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
PURCHASEGRANT
Stock grant
15,604——15,604Feb 7, 2020Oct 15, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,391$41.47$57.7K292,854Feb 6, 2020Feb 10, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,466$41.47$60.8K291,388Feb 6, 2020Feb 10, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,466$41.47$60.8K291,388Feb 6, 2020Feb 11, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,391$41.47$57.7K292,854Feb 6, 2020Feb 11, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
2,910$41.47$120.7K288,575Feb 6, 2020Oct 15, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
2,760$41.47$114.5K291,485Feb 6, 2020Oct 15, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,076$38.63$41.6K295,142Jan 28, 2020Jan 29, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
897$38.63$34.7K294,245Jan 28, 2020Jan 29, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,331$38.02$50.6K296,218Jan 27, 2020Jan 29, 2020 ↗View →
ONTO
ONTO INNOVATION INC.
SALE
Chief Executive Officer
1,185$38.02$45.1K297,549Jan 27, 2020Jan 29, 2020 ↗View →
Other insiders · ONTO
Loading peer insiders…
About this filer
CIK 0001325550
ROLE
CEO
PRIMARY
ONTO
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001325550DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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