Insider · CIK 0001835547

Schiffer Vivienne

Reports to the SEC for 1 company · HOUSTON, TX

sec.gov

Transactions

Companies

Filings

CIK

0001835547

Forms 4 and 5

Insider transactions

32 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-04-01	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+28.9K sh	—	—	144,817
2026-04-01	GLDDGreat Lakes Dredge & Dock CORPU Disposition from Tender	SVP, CLO, CCO & Corp Secretary	UDisposition from Tender	−145K sh	—	—	0
2026-03-16	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−2,060 sh	$16.93	−$34.9K	99,270
2026-03-16	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+14.2K sh	—	—	113,483
2026-03-16	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−3,461 sh	$16.93	−$58.6K	110,022
2026-03-16	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−2,058 sh	$16.93	−$34.8K	107,964
2026-03-16	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+10.5K sh	—	—	118,418
2026-03-16	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−2,546 sh	$16.93	−$43.1K	115,872
2026-02-23	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+19.1K sh	—	—	101,330
2025-05-08	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+18K sh	—	—	82,181
2025-05-08	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+18K sh	—	—	82,181
2025-05-05	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−1,070 sh	$9.54	−$10.2K	64,829
2025-05-05	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−683 sh	$9.54	−$6,515.82	64,146
2025-03-17	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−1,864 sh	$8.70	−$16.2K	48,681
2025-03-17	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+14K sh	—	—	62,724
2025-03-17	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−3,420 sh	$8.70	−$29.8K	59,304
2025-03-17	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−1,274 sh	$8.70	−$11.1K	58,030
2025-03-17	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+10.4K sh	—	—	68,432
2025-03-17	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−2,533 sh	$8.70	−$22K	65,899
2024-05-06	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−1,070 sh	$7.04	−$7,532.8	50,545
2024-03-15	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+7,752 sh	—	—	41,994
2024-03-15	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−3,051 sh	$8.62	−$26.3K	38,943
2024-03-15	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−3,012 sh	$8.62	−$26K	35,931
2024-03-15	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+15.7K sh	—	—	51,615
2024-03-05	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−895 sh	$8.70	−$7,786.5	34,242
2023-05-05	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−1,296 sh	$5.75	−$7,452	35,137
2023-03-15	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+23K sh	—	—	36,433
2023-03-06	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−1,152 sh	$5.78	−$6,658.56	13,473
2022-05-05	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+7,878 sh	—	—	14,347
2022-05-05	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+8,156 sh	—	—	14,625
2022-03-07	GLDDGreat Lakes Dredge & Dock CORPF Tax Payment	SVP, CLO, CCO & Corp Secretary	FTax Payment	−782 sh	$14.78	−$11.6K	6,469
2021-03-05	GLDDGreat Lakes Dredge & Dock CORPA Award	SVP, CLO, CCO & Corp Secretary	AAward	+7,251 sh	—	—	7,251

Recent filings

Accepted (ET)
Apr 14
Schiffer Vivienne0001193125-26-138046
SEC(opens sec.gov)
Mar 254/A
Schiffer Vivienne0001193125-26-124237
SEC(opens sec.gov)
Mar 184
Schiffer Vivienne0001193125-26-114344
SEC(opens sec.gov)
Feb 254
Schiffer Vivienne0001193125-26-072028
SEC(opens sec.gov)
May 124
Schiffer Vivienne0000950170-25-069522
SEC(opens sec.gov)
May 74
Schiffer Vivienne0000950170-25-066027
SEC(opens sec.gov)
Mar 184
Schiffer Vivienne0000950170-25-041398
SEC(opens sec.gov)
May 74
Schiffer Vivienne0000950170-24-054652
SEC(opens sec.gov)

Companies

Great Lakes Dredge & Dock CORPSVP, CLO, CCO & Corp SecretaryGLDD

Address

C/O GREAT LAKES DREDGE & DOCK CORP. 9811 KATY FREEWAY, SUITE 1200

HOUSTON, TX, 77024