Vivienne Schiffer

Companies

• Great Lakes Dredge & Dock CORPGeneral counsel Dec 9, 2020 to now¹

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• GLGreat Lakes Dredge & Dock CORP0 shares²Apr 1, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Apr 1, 2026U 144,817 shares of Great Lakes Dredge & Dock CORP²
• Apr 1, 2026Granted 28,945 shares of Great Lakes Dredge & Dock CORP²
• Mar 16, 2026Shares withheld for tax 2,546 shares at $16.93 of Great Lakes Dredge & Dock CORP³
• Mar 16, 2026Granted 10,454 shares of Great Lakes Dredge & Dock CORP³
• Mar 16, 2026Shares withheld for tax 2,058 shares at $16.93 of Great Lakes Dredge & Dock CORP³
• Mar 16, 2026Shares withheld for tax 3,461 shares at $16.93 of Great Lakes Dredge & Dock CORP³
• Mar 16, 2026Granted 14,213 shares of Great Lakes Dredge & Dock CORP³
• Mar 16, 2026Shares withheld for tax 2,060 shares at $16.93 of Great Lakes Dredge & Dock CORP³
• Feb 23, 2026Granted 19,149 shares of Great Lakes Dredge & Dock CORP⁴
• May 8, 2025Granted 18,035 shares of Great Lakes Dredge & Dock CORP⁵
• May 8, 2025Granted 18,035 shares of Great Lakes Dredge & Dock CORP⁶
• May 5, 2025Shares withheld for tax 683 shares at $9.54 of Great Lakes Dredge & Dock CORP⁷
• May 5, 2025Shares withheld for tax 1,070 shares at $9.54 of Great Lakes Dredge & Dock CORP⁷
• Mar 17, 2025Shares withheld for tax 2,533 shares at $8.70 of Great Lakes Dredge & Dock CORP⁸
• Mar 17, 2025Granted 10,402 shares of Great Lakes Dredge & Dock CORP⁸
• Mar 17, 2025Shares withheld for tax 1,274 shares at $8.70 of Great Lakes Dredge & Dock CORP⁸
• Mar 17, 2025Shares withheld for tax 3,420 shares at $8.70 of Great Lakes Dredge & Dock CORP⁸
• Mar 17, 2025Granted 14,043 shares of Great Lakes Dredge & Dock CORP⁸
• Mar 17, 2025Shares withheld for tax 1,864 shares at $8.70 of Great Lakes Dredge & Dock CORP⁸
• May 6, 2024Shares withheld for tax 1,070 shares at $7.04 of Great Lakes Dredge & Dock CORP⁹
• Mar 15, 2024Granted 15,684 shares of Great Lakes Dredge & Dock CORP¹⁰
• Mar 15, 2024Shares withheld for tax 3,012 shares at $8.62 of Great Lakes Dredge & Dock CORP¹⁰
• Mar 15, 2024Shares withheld for tax 3,051 shares at $8.62 of Great Lakes Dredge & Dock CORP¹⁰
• Mar 15, 2024Granted 7,752 shares of Great Lakes Dredge & Dock CORP¹⁰
• Mar 5, 2024Shares withheld for tax 895 shares at $8.70 of Great Lakes Dredge & Dock CORP¹¹