GLDD insider transaction filings
Great Lakes Dredge & Dock CORP — 50 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2026-04-01. Screen GLDD transaction legs live →
| Filed | Form | Insider | Reported transactions | Source |
|---|---|---|---|---|
| 2026-04-01 | 4 | Schiffer Vivienne — SVP, CLO, CCO & Corp Secretary | Grant/award (A): 28,945 · Code (U): 144,817 | EDGAR |
| 2026-04-01 | 4 | Petterson Lasse — CEO & President, Director | Grant/award (A): 206,445 · Code (U): 1,568,290.29 | EDGAR |
| 2026-04-01 | 4 | Kornblau Scott Lee — SVP & CFO | Grant/award (A): 90,518 · Code (U): 244,126.24 | EDGAR |
| 2026-04-01 | 4 | JOHANSON DAVID — SVP-Project Acquisition & Ops | Grant/award (A): 521.26 @ $10.82 · Grant/award (A): 71,860 · Code (U): 191,597.52 | EDGAR |
| 2026-04-01 | 4 | HANSON WILLIAM H — SVP, Market Development | Grant/award (A): 13,631 · Code (U): 90,852.74 | EDGAR |
| 2026-04-01 | 4 | GUNSTEN CHRISTOPHER — SVP-Proj Svcs & Fleet Engineer | Grant/award (A): 71,860 · Code (U): 182,496 | EDGAR |
| 2026-04-01 | 4 | BEYKO ELENI — SVP - Offshore Energy | Grant/award (A): 25,505 · Code (U): 151,312 | EDGAR |
| 2026-04-01 | 4 | BAYER RYAN — VP & CAO | Grant/award (A): 5,607 · Code (U): 37,380 | EDGAR |
| 2026-04-01 | 4 | Steger Ronald — Director | Code (U): 20,404 · Grant/award (A): 1,625 (derivative) @ $0 · Disposition to issuer (D): 45,068 (derivative) | EDGAR |
| 2026-04-01 | 4 | Shipp Earl L — Director | Code (U): 42,619 | EDGAR |
| 2026-04-01 | 4 | Armstrong Dana A — Director | Code (U): 8,436 | EDGAR |
| 2026-04-01 | 4 | Shanahan Kathleen M — Director | Code (U): 76,375 · Grant/award (A): 1,485 (derivative) @ $0 · Disposition to issuer (D): 10,336 (derivative) | EDGAR |
| 2026-04-01 | 4 | DICKERSON LAWRENCE R — Director | Code (U): 86,217 · Grant/award (A): 2,938 (derivative) @ $0 · Disposition to issuer (D): 76,962 (derivative) | EDGAR |
| 2026-03-25 | 4 | BEYKO ELENI — SVP - Offshore Energy | Tax withholding (F): 8,088 @ $13.12 | EDGAR |
| 2026-03-25 | 4/A | BAYER RYAN — VP & CAO | Grant/award (A): 10,126 | EDGAR |
| 2026-03-25 | 4/A | BEYKO ELENI — SVP - Offshore Energy | Grant/award (A): 15,376 | EDGAR |
| 2026-03-25 | 4/A | HANSON WILLIAM H — SVP, Market Development | Grant/award (A): 8,237 | EDGAR |
| 2026-03-25 | 4/A | JOHANSON DAVID — SVP-Project Acquisition & Ops | Grant/award (A): 13,179 | EDGAR |
| 2026-03-25 | 4/A | GUNSTEN CHRISTOPHER — SVP-Proj Svcs & Fleet Engineer | Grant/award (A): 13,179 | EDGAR |
| 2026-03-25 | 4/A | Kornblau Scott Lee — SVP & CFO | Grant/award (A): 25,058 | EDGAR |
| 2026-03-25 | 4/A | Petterson Lasse — CEO & President, Director | Grant/award (A): 125,145 | EDGAR |
| 2026-03-25 | 4/A | Schiffer Vivienne — SVP, CLO, CCO & Corp Secretary | Grant/award (A): 18,035 | EDGAR |
| 2026-03-18 | 4 | Schiffer Vivienne — SVP, CLO, CCO & Corp Secretary | Tax withholding (F): 2,060 @ $16.93 · Grant/award (A): 14,213 · Tax withholding (F): 3,461 @ $16.93 · Tax withholding (F): 2,058 @ $16.93 · Grant/award (A): 10,454 · Tax withholding (F): 2,546 @ $16.93 | EDGAR |
| 2026-03-18 | 4 | Petterson Lasse — CEO & President, Director | Grant/award (A): 94,540 · Tax withholding (F): 37,202 @ $16.93 · Tax withholding (F): 20,033 @ $16.93 · Tax withholding (F): 15,529 @ $16.93 · Grant/award (A): 78,924 · Tax withholding (F): 31,057 @ $16.93 | EDGAR |
| 2026-03-18 | 4 | Kornblau Scott Lee — SVP & CFO | Tax withholding (F): 4,719 @ $16.93 · Grant/award (A): 22,265 · Tax withholding (F): 8,762 @ $16.93 · Tax withholding (F): 2,926 @ $16.93 · Grant/award (A): 14,868 · Tax withholding (F): 5,851 @ $16.93 | EDGAR |
| 2026-03-18 | 4 | JOHANSON DAVID — SVP-Project Acquisition & Ops | Tax withholding (F): 1,659 @ $16.93 · Grant/award (A): 12,646 · Tax withholding (F): 3,080 @ $16.93 · Tax withholding (F): 1,029 @ $16.93 · Grant/award (A): 8,444 · Tax withholding (F): 2,057 @ $16.93 | EDGAR |
| 2026-03-18 | 4 | HANSON WILLIAM H — SVP, Market Development | Tax withholding (F): 1,030 @ $16.93 · Grant/award (A): 7,853 · Tax withholding (F): 1,913 @ $16.93 · Tax withholding (F): 639 @ $16.93 · Grant/award (A): 5,242 · Tax withholding (F): 1,277 @ $16.93 | EDGAR |
| 2026-03-18 | 4 | GUNSTEN CHRISTOPHER — SVP-Proj Svcs & Fleet Engineer | Tax withholding (F): 2,204 @ $16.93 · Grant/award (A): 12,646 · Tax withholding (F): 4,091 @ $16.93 · Tax withholding (F): 1,367 @ $16.93 · Grant/award (A): 8,444 · Tax withholding (F): 2,732 @ $16.93 | EDGAR |
| 2026-03-18 | 4 | BEYKO ELENI — SVP - Offshore Energy | Tax withholding (F): 2,645 @ $16.93 · Grant/award (A): 14,754 · Tax withholding (F): 4,773 @ $16.93 · Tax withholding (F): 1,939 @ $16.93 · Grant/award (A): 9,852 · Tax withholding (F): 3,188 @ $16.93 | EDGAR |
| 2026-03-18 | 4 | BAYER RYAN — VP & CAO | Tax withholding (F): 1,282 @ $16.93 · Grant/award (A): 2,170 · Tax withholding (F): 854 @ $16.93 | EDGAR |
| 2026-02-25 | 4 | Schiffer Vivienne — SVP, CLO, CCO & Corp Secretary | Grant/award (A): 19,149 | EDGAR |
| 2026-02-25 | 4 | Petterson Lasse — CEO & President, Director | Grant/award (A): 132,825 | EDGAR |
| 2026-02-25 | 4 | Kornblau Scott Lee — SVP & CFO | Grant/award (A): 26,603 | EDGAR |
| 2026-02-25 | 4 | GUNSTEN CHRISTOPHER — SVP-Proj Svcs & Fleet Engineer | Grant/award (A): 13,988 | EDGAR |
| 2026-02-25 | 4 | JOHANSON DAVID — SVP-Project Acquisition & Ops | Grant/award (A): 13,988 | EDGAR |
| 2026-02-25 | 4 | HANSON WILLIAM H — SVP, Market Development | Grant/award (A): 8.74 | EDGAR |
| 2026-02-25 | 4 | BEYKO ELENI — SVP - Offshore Energy | Grant/award (A): 16,320 | EDGAR |
| 2026-02-25 | 4 | BAYER RYAN — VP & CAO | Grant/award (A): 7,165 | EDGAR |
| 2026-01-20 | 4 | Shanahan Kathleen M — Director | Option exercise (M): 2,849 @ $0 · Option exercise (M): 3,002 @ $0 · Option exercise (M): 2,849 (derivative) @ $0 · Option exercise (M): 3,002 (derivative) @ $0 | EDGAR |
| 2026-01-05 | 4 | Steger Ronald — Director | Grant/award (A): 2,106 (derivative) @ $0 | EDGAR |
| 2026-01-05 | 4 | Shipp Earl L — Director | Grant/award (A): 1,829 @ $0 | EDGAR |
| 2026-01-05 | 4 | Armstrong Dana A — Director | Grant/award (A): 1,829 @ $0 | EDGAR |
| 2026-01-05 | 4 | Shanahan Kathleen M — Director | Grant/award (A): 1,925 (derivative) @ $0 | EDGAR |
| 2026-01-05 | 4 | DICKERSON LAWRENCE R — Director | Grant/award (A): 3,806 (derivative) @ $0 | EDGAR |
| 2025-12-12 | 4 | JOHANSON DAVID — SVP-Project Acquisition & Ops | Sale (S): 2,100 @ $13.96 | EDGAR |
| 2025-12-04 | 4 | JOHANSON DAVID — SVP-Project Acquisition & Ops | Sale (S): 10,000 @ $13.02 | EDGAR |
| 2025-10-01 | 4 | Steger Ronald — Director | Grant/award (A): 2,304 (derivative) @ $0 | EDGAR |
| 2025-10-01 | 4 | Shipp Earl L — Director | Grant/award (A): 2,002 @ $0 | EDGAR |
| 2025-10-01 | 4 | Armstrong Dana A — Director | Grant/award (A): 2,002 @ $0 | EDGAR |
| 2025-10-01 | 4 | Shanahan Kathleen M — Director | Grant/award (A): 2,106 (derivative) @ $0 | EDGAR |
Recent 8-K events — Great Lakes Dredge & Dock CORP
| Filed | Form | Items reported | Source |
|---|---|---|---|
| 2026-04-01 | 8-K | 1.01 — Entry into a Material Definitive Agreement 1.02 — Termination of a Material Definitive Agreement 2.01 — Completion of Acquisition or Disposition of Assets 3.01 — Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing 3.03 — Material Modification to Rights of Security Holders 5.01 — Changes in Control of Registrant 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-03-20 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers | EDGAR |
| 2026-03-18 | 8-K | 8.01 — Other Events 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-23 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2026-02-12 | 8-K | 8.01 — Other Events | EDGAR |
| 2026-02-11 | 8-K | 1.01 — Entry into a Material Definitive Agreement 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 7.01 — Regulation FD Disclosure 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-11-04 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-10-27 | 8-K | 1.01 — Entry into a Material Definitive Agreement | EDGAR |
| 2025-08-05 | 8-K | 2.02 — Results of Operations and Financial Condition 9.01 — Financial Statements and Exhibits | EDGAR |
| 2025-05-12 | 8-K | 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 5.07 — Submission of Matters to a Vote of Security Holders | EDGAR |
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