Onto Innovation Inc.
Onto Innovation Inc. (ONTO) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · ONTO · as of Jun 8, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
0
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Onto Innovation Inc. insiders have shown mixed buying and selling activity over the past 12 Months.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
ONTO insider buying and selling by quarter
ONTO insider selling · ONTO insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Active insiders
Most active in past 12 months · ONTO ceo insider trading
Showing all insiders · Click a card to filter the transactions table below
▸ Aggregated from reportingName · top 5 by trade count (12M) · no extra API
Recent insider transactions
ONTO executive sell shares · ONTO board member insider trading · ONTO insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| May 20, 2026 | Su May Director | Award | 761 | — | Form 4 |
| May 20, 2026 | SEAMS CHRISTOPHER A Director | Award | 761 | — | Form 4 |
| May 20, 2026 | SCHWARTZ STEPHEN S Director | Award | 761 | — | Form 4 |
| May 20, 2026 | MILLER DAVID BRIAN Director | Award | 761 | — | Form 4 |
| May 20, 2026 | Lynch Susan D Director | Award | 761 | — | Form 4 |
| May 20, 2026 | Kelley Stephen Douglas Director | Award | 761 | — | Form 4 |
| May 15, 2026 | YALDAEI RAMIL COO | Other | 218 | $59K | Form 4 |
| May 15, 2026 | YALDAEI RAMIL COO | Other | 625 | $170K | Form 4 |
| May 15, 2026 | OH Yoon Ah SVP, Gen Counsel & Corp Sec | Other | 530 | $144K | Form 4 |
| Mar 2, 2026 | ROBERTS BRIAN K CFO | Award | 3,096 | — | Form 4 |
| Mar 2, 2026 | Dolev Ido EVP, Prod Solutions Grp | Award | 3,440 | — | Form 4 |
| Mar 3, 2026 | Dolev Ido EVP, Prod Solutions Grp | Other | 819 | $170K | Form 4 |
| Mar 2, 2026 | YALDAEI RAMIL COO | Award | 7,683 | — | Form 4 |
| Mar 3, 2026 | YALDAEI RAMIL COO | Other | 615 | $128K | Form 4 |
| Mar 2, 2026 | Plisinski Michael P CEO · Director | Award | 14,479 | — | Form 4 |
| Mar 3, 2026 | Plisinski Michael P CEO · Director | Other | 3,742 | $776K | Form 4 |
| Mar 2, 2026 | OH Yoon Ah SVP, Gen Counsel & Corp Sec | Award | 2,408 | — | Form 4 |
| Mar 3, 2026 | OH Yoon Ah SVP, Gen Counsel & Corp Sec | Other | 417 | $87K | Form 4 |
| Mar 2, 2026 | Chen Shirley SVP Customer Success | Award | 2,523 | — | Form 4 |
| Mar 1, 2026 | Plisinski Michael P CEO · Director | Option | 4,597 | — | Form 4 |
| Mar 1, 2026 | Plisinski Michael P CEO · Director | Other | 2,222 | $480K | Form 4 |
| Mar 1, 2026 | Plisinski Michael P CEO · Director | Other | 1,925 | $416K | Form 4 |
| Mar 1, 2026 | OH Yoon Ah SVP, Gen Counsel & Corp Sec | Option | 724 | — | Form 4 |
| Mar 1, 2026 | OH Yoon Ah SVP, Gen Counsel & Corp Sec | Other | 307 | $66K | Form 4 |
| Mar 1, 2026 | OH Yoon Ah SVP, Gen Counsel & Corp Sec | Other | 267 | $58K | Form 4 |
OH Yoon Ah
SVP, Gen Counsel & Corp Sec
Date
May 15
Shares
530
Price
$271.77
Value
$144K
Plisinski Michael P
CEO · Director
Date
Mar 3
Shares
3,742
Price
$207.50
Value
$776K
OH Yoon Ah
SVP, Gen Counsel & Corp Sec
Date
Mar 3
Shares
417
Price
$207.50
Value
$87K
Plisinski Michael P
CEO · Director
Date
Mar 1
Shares
2,222
Price
$215.89
Value
$480K
Plisinski Michael P
CEO · Director
Date
Mar 1
Shares
1,925
Price
$215.89
Value
$416K
OH Yoon Ah
SVP, Gen Counsel & Corp Sec
Date
Mar 1
Shares
307
Price
$215.89
Value
$66K
OH Yoon Ah
SVP, Gen Counsel & Corp Sec
Date
Mar 1
Shares
267
Price
$215.89
Value
$58K
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About ONTO insider trading
ONTO insider trades
Onto Innovation Inc. (ONTO) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including OH Yoon Ah (SVP, Gen Counsel & Corp Sec), Plisinski Michael P (CEO · Director), YALDAEI RAMIL (COO). Over the past 12 months, 5 insiders have filed transactions with the SEC. ONTO insiders have been mixed buying and selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Onto Innovation Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
ONTO insider trading · 5 questionsThe insiders of Onto Innovation Inc. (ONTO) include executives and directors such as OH Yoon Ah (SVP, Gen Counsel & Corp Sec), Plisinski Michael P (CEO · Director), YALDAEI RAMIL (COO), among others. Over the past 12 months, 5 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026