Darin G Billerbeck

CIK 1388177 · Executive Chairman · 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

$110.57M

Companies

3

Total Filings

102

Lifetime Open-Market Net

-$2.43M

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
MRAM Director 127,925 $24.41 $3.12M -$2.48M 33 2026-05-22
LSCC Former President & CEO 743,393 $144.53 $107.44M $49.0K 63 2018-06-07
ZILOG INC (ZILG) Delisted CEO, President 76,280 $0 5 2009-05-18

Recent Filings · Page 9 of 11

102 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2014-01-02 LSCC Mixed +8,253 -$25.7K EDGAR
2013-11-05 LSCC Mixed +1,579 -$4.8K EDGAR
2013-10-02 LSCC Mixed +8,254 -$21.0K EDGAR
2013-08-05 LSCC Mixed +1,580 -$4.8K EDGAR
2013-07-03 LSCC Mixed +8,253 -$24.1K EDGAR
2013-05-03 LSCC Mixed +1,579 -$4.1K EDGAR
2013-04-03 LSCC Mixed +33,074 -$99.0K EDGAR
2013-02-07 LSCC Mixed $0 EDGAR
2013-02-04 LSCC Mixed +1,448 -$4.8K EDGAR
2012-11-02 LSCC Mixed +1,601 -$3.5K EDGAR
Showing 8190 of 102
Page 9 of 11
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.