LEO BERLINGHIERI

CIK 1202738 · CEO · last filed 2025-05-23

LEO BERLINGHIERI is a CEO who has filed 71 SEC Form 4 insider transactions across 3 companies since 2007. The most recent filing, for ONTO, was dated May 23, 2025. Across all open-market trades the lifetime net is −$15.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $78.0M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$77.99M

Companies

3

Total Filings

71

Lifetime Open-Market Net

-$15.85M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ONTO Director 20,210 $323.88 $6.55M -$424.5K 9 2025-05-23
RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Director 23,100 -$793.7K 19 2019-05-15
MKSI CEO 200,851 $355.69 $71.44M -$14.64M 42 2014-01-02

Recent Filings

71 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2025-05-23 ONTO $0 EDGAR
2024-05-23 ONTO Grant (A) +809 $0 EDGAR
2023-05-11 ONTO Grant (A) +2,200 $0 EDGAR
2022-05-12 ONTO Grant (A) +2,100 $0 EDGAR
2021-11-03 ONTO Sell (S) −5,275 -$424.5K EDGAR
2021-09-14 ONTO Disp (D) −5,500 -$425.6K EDGAR
2021-05-12 ONTO Grant (A) +2,500 $0 EDGAR
2020-05-14 ONTO Grant (A) +4,800 $0 EDGAR
2019-10-29 ONTO Grant (A) +18,576 $0 EDGAR
2019-10-29 Disp (D) −23,100 $0
Showing 110 of 71
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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.