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LAWRENCE R DICKERSON

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

LAWRENCE R DICKERSON is a President and C.E.O. who has filed 132 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing, for OIS, was dated May 13, 2026. Across all open-market trades the lifetime net is −$2.3M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.3M 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

$3.30M

Companies

6

Total Filings

132

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 $8.02 $1.41M $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 $36.64 $1.89M -$201.6K 20 2026-02-06
HERO Director — $25.83 — $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 $27.20 $0 $0 14 2011-12-02

Recent Filings

132 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-05-13 OIS Grant (A) +16,760 $0 EDGAR
2026-04-01 Great Lakes Dredge & Dock CORP (GLDD) Delisted Mixed −86,217 $0 EDGAR
2026-02-06 MUR Mixed +7,886 $0 EDGAR
2026-01-05 Great Lakes Dredge & Dock CORP (GLDD) Delisted Grant (A) — $0 EDGAR
2025-10-01 Great Lakes Dredge & Dock CORP (GLDD) Delisted Grant (A) — $0 EDGAR
2025-07-01 Great Lakes Dredge & Dock CORP (GLDD) Delisted Grant (A) — $0 EDGAR
2025-05-14 OIS Grant (A) +31,185 $0 EDGAR
2025-04-01 Great Lakes Dredge & Dock CORP (GLDD) Delisted Grant (A) — $0 EDGAR
2025-02-06 MUR Grant (A) — $0 EDGAR
2025-01-03 Great Lakes Dredge & Dock CORP (GLDD) Delisted Grant (A) +4,069 $0 EDGAR
Showing 1–10 of 132
Page 1 of 14
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.