Filing Manager
BlackRock, Inc.
Reporting Manager
BlackRock, Inc.
Symbol
GLDD
Shares outstanding
67,018,110 shares
Disclosed Ownership
6,701,811 shares
Ownership
10%
Form type
SCHEDULE 13G/A
Filing time
04 Mar 2026, 16:44:13 UTC
Date of event
28 Feb 2026
Previous filing
24 Apr 2025

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Quoteable Key Fact

"BlackRock, Inc. disclosed 10% ownership in GREAT LAKES DREDGE & DOCK CORPORATION Common Stock (GLDD) on 28 Feb 2026."

Quick Takeaways

  • BlackRock, Inc. filed SCHEDULE 13G/A for GREAT LAKES DREDGE & DOCK CORPORATION Common Stock (GLDD).
  • Disclosed ownership: 10%.
  • Date of event: 28 Feb 2026.

What Changed

  • Previous schedule filing date: 24 Apr 2025.
  • Current filing was accepted on 04 Mar 2026, 16:44.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (1)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
BlackRock, Inc. 10% 6,701,811 6,585,493 0 Spencer Fleming Managing Director