Arkolith/Insider Trading/GLDD/Form 4

Shanahan Kathleen M

DirectorGreat Lakes Dredge & Dock CORP (GLDD) · full profile →Form 4 · filed Apr 1, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
3
1 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Apr 1, 2026Tender(U)76K——0

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Mar 31, 2026Grant(A)1K—$010K
Mar 31, 2026Disposed to issuer(D)10K——0

Transaction Codes

U
See SEC Form 4 code table
A
Grant / award
D
Disposition to the issuer

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-26-137844) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML