GREAT LAKES DREDGE & DOCK CO (GLDD) Stock Ownership

NASDAQ:GLDD • US3906071093

Current stock price

17 USD
+0.03 (+0.18%)
At close:
17 USD
0 (0%)
After Hours:

GLDD Ownership information

GLDD Ownership Chart.GLDD Ownership Chart: showing Insider, Institutional ownership and shares available to the public.GLDD Ownership.InsiderInstitutionalPublic



Shares Outstanding66.78M
Float64.79M
Float Short Interest Percentage2.43%
Owners (insider)2.48%
Owners (institutional)86.8%
Owners (insider) change-70.79%
Owners (institutional) change-0.24%
GLDD Institutional Ownership HistoryGLDD Institutional Ownership HistoryGLDD Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 Mar 2026 20M 40M 60M
GLDD Historical Insider Transactions ChartGLDD Historical Insider Buy and Sell Transactions ChartGLDD Historical Insider Transactions May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026 0 -500K -1M -1.5M -2M
DateNameTypeSharesPriceAmount
Apr 1, 2026Kornblau Scott LeeOther Disposition244126$ 0.00
Apr 1, 2026Armstrong Dana AOther Disposition8436$ 0.00
Apr 1, 2026BAYER RYANGrant5607$ 0.00
Apr 1, 2026BAYER RYANOther Disposition37380$ 0.00
Apr 1, 2026Steger RonaldOther Disposition20404$ 0.00
Apr 1, 2026Shipp Earl LOther Disposition42619$ 0.00
Apr 1, 2026Shanahan Kathleen MOther Disposition76375$ 0.00
Apr 1, 2026DICKERSON LAWRENCE ROther Disposition86217$ 0.00
Apr 1, 2026JOHANSON DAVIDGrant71860$ 0.00
Apr 1, 2026JOHANSON DAVIDOther Disposition191598$ 0.00
Apr 1, 2026HANSON WILLIAM HGrant13631$ 0.00
Apr 1, 2026HANSON WILLIAM HOther Disposition90853$ 0.00
Apr 1, 2026GUNSTEN CHRISTOPHERGrant71860$ 0.00
Apr 1, 2026GUNSTEN CHRISTOPHEROther Disposition182496$ 0.00
Apr 1, 2026BEYKO ELENIGrant25505$ 0.00
Apr 1, 2026BEYKO ELENIOther Disposition151312$ 0.00
Apr 1, 2026Schiffer VivienneGrant28945$ 0.00
Apr 1, 2026Schiffer VivienneOther Disposition144817$ 0.00
Apr 1, 2026Petterson LasseGrant206445$ 0.00
Apr 1, 2026Petterson LasseOther Disposition1568290$ 0.00
Apr 1, 2026Kornblau Scott LeeGrant90518$ 0.00
Mar 16, 2026Kornblau Scott LeeOption Excercise2225816.93$ 376,827.94
Mar 16, 2026Kornblau Scott LeeGrant37133$ 0.00
Mar 16, 2026GUNSTEN CHRISTOPHEROption Excercise1039416.93$ 175,970.42
Mar 16, 2026GUNSTEN CHRISTOPHERGrant21090$ 0.00
Mar 16, 2026Schiffer VivienneOption Excercise1012516.93$ 171,416.25
Mar 16, 2026Schiffer VivienneGrant24667$ 0.00
Mar 16, 2026Petterson LasseGrant173464$ 0.00
Mar 16, 2026Petterson LasseOption Excercise10382116.93$ 1,757,689.53
Mar 16, 2026HANSON WILLIAM HOption Excercise485916.93$ 82,262.87
Mar 16, 2026HANSON WILLIAM HGrant13095$ 0.00
Mar 16, 2026BEYKO ELENIOption Excercise1254516.93$ 212,386.85
Mar 16, 2026BEYKO ELENIGrant24606$ 0.00
Mar 16, 2026JOHANSON DAVIDOption Excercise782516.93$ 132,477.25
Mar 16, 2026JOHANSON DAVIDGrant21090$ 0.00
Mar 16, 2026BAYER RYANOption Excercise213616.93$ 36,162.48
Mar 16, 2026BAYER RYANGrant2170$ 0.00
Feb 23, 2026BAYER RYANGrant7165$ 0.00
Feb 23, 2026JOHANSON DAVIDGrant13988$ 0.00
Feb 23, 2026HANSON WILLIAM HGrant9$ 0.00
Feb 23, 2026BEYKO ELENIGrant16320$ 0.00
Feb 23, 2026Schiffer VivienneGrant19149$ 0.00
Feb 23, 2026Petterson LasseGrant132825$ 0.00
Feb 23, 2026Kornblau Scott LeeGrant26603$ 0.00
Feb 23, 2026GUNSTEN CHRISTOPHERGrant13988$ 0.00
Jan 15, 2026Shanahan Kathleen MOption Excercise58510.00$ 0.00
Dec 31, 2025Shipp Earl LGrant18290.00$ 0.00
Dec 31, 2025Armstrong Dana AGrant18290.00$ 0.00
Dec 10, 2025JOHANSON DAVIDOpen Market Sale210013.96$ 29,308.44
Dec 3, 2025JOHANSON DAVIDOpen Market Sale1000013.02$ 130,155.00
Sep 30, 2025Armstrong Dana AGrant20020.00$ 0.00
Sep 30, 2025Shipp Earl LGrant20020.00$ 0.00
Aug 11, 2025Kornblau Scott LeeOpen Market Sale5980511.48$ 686,322.18
Jun 30, 2025Shipp Earl LGrant19690.00$ 0.00
Jun 30, 2025Armstrong Dana AGrant19690.00$ 0.00
Jun 3, 2025Steger RonaldOpen Market Sale500011.59$ 57,925.00
May 8, 2025BEYKO ELENIGrant15376$ 0.00
May 8, 2025BAYER RYANGrant10126$ 0.00
May 8, 2025Schiffer VivienneGrant18035$ 0.00
May 8, 2025GUNSTEN CHRISTOPHERGrant13179$ 0.00
May 8, 2025JOHANSON DAVIDGrant13179$ 0.00
May 8, 2025HANSON WILLIAM HGrant8237$ 0.00
May 8, 2025Petterson LasseGrant125145$ 0.00
May 8, 2025Kornblau Scott LeeGrant25058$ 0.00
May 8, 2025BEYKO ELENIGrant40000$ 0.00
May 6, 2025BEYKO ELENIOpen Market Sale2257910.26$ 231,599.58
May 5, 2025BEYKO ELENIOption Excercise14589.54$ 13,909.32
May 5, 2025JOHANSON DAVIDOption Excercise8259.54$ 7,870.50
May 5, 2025Kornblau Scott LeeOption Excercise27469.54$ 26,196.84
May 5, 2025HANSON WILLIAM HOption Excercise6009.54$ 5,724.00
May 5, 2025GUNSTEN CHRISTOPHEROption Excercise9229.54$ 8,795.88
May 5, 2025Petterson LasseOption Excercise45419.54$ 43,321.14
May 5, 2025Schiffer VivienneOption Excercise17539.54$ 16,723.62
Apr 24, 2025BEYKO ELENIOption Excercise80889.06$ 73,277.28