DAVID BRIAN MILLER

CIK 1233488 · last filed 2026-05-22

"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

$4.11M

Companies

3

Total Filings

20

Lifetime Open-Market Net

-$1.64M

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 12,692 $323.88 $4.11M -$1.51M 12 2026-05-22
RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Director 21,400 -$125.2K 6 2019-05-15
MRM Director $1.18 $0 1 2007-06-21

Recent Filings · Page 2 of 2

20 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2020-05-14 ONTO Grant (A) +4,800 $0 EDGAR
2019-10-29 ONTO Grant (A) +17,209 $0 EDGAR
2019-10-29 Disp (D) −21,400 $0
2019-05-15 RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Grant (A) +4,100 $0 EDGAR
2018-05-18 RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Grant (A) +3,100 $0 EDGAR
2018-05-10 RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Sell (S) −4,000 -$125.2K EDGAR
2017-05-19 RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Grant (A) +4,200 $0 EDGAR
2016-07-22 RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Grant (A) +6,300 $0 EDGAR
2015-07-30 RUDOLPH TECHNOLOGIES INC (RTEC) Delisted Grant (A) +7,700 $0 EDGAR
2007-06-21 MRM Grant (A) $0 EDGAR
Showing 1120 of 20
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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.