LAWRENCE R DICKERSON

CIK 1249072 · President and C.E.O. · last filed 2026-05-13

"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

$3.49M

Companies

6

Total Filings

130

Lifetime Open-Market Net

-$2.27M

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
OIS Director 175,613 $8.50 $1.49M $0 12 2026-05-13
Great Lakes Dredge & Dock CORP (GLDD) Delisted Director 0 $17.00 $0 -$352.8K 44 2026-04-01
MUR Director 51,512 $38.84 $2.00M -$201.6K 20 2026-02-06
HERO Director $24.65 $0 2 2016-02-12
DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted President and C.E.O. 9,863 $13.99 $138.0K -$1.72M 38 2014-01-06
GLBL Director 0 $27.64 $0 $0 14 2011-12-02

Recent Filings · Page 13 of 13

130 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2007-10-03 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Grant (A) $0 EDGAR
2007-09-25 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Mixed +15,466 $433.0K EDGAR
2007-07-05 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Grant (A) $0 EDGAR
2007-06-25 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Disc (I) −4,152 -$444.9K EDGAR
2007-05-21 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Mixed +9,849 $24.7K EDGAR
2007-05-18 GLBL Grant (A) +10,000 $0 EDGAR
2007-04-03 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Grant (A) $0 EDGAR
2007-03-23 GLBL Grant (A) +1,535 $0 EDGAR
2007-02-13 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Mixed +5,624 $30.6K EDGAR
2007-01-03 DIAMOND OFFSHORE DRILLING, INC. (DO) Delisted Grant (A) $0 EDGAR
Showing 121130 of 130
Page 13 of 13
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.