Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000834237-21-003761
Filing Date
2021-01-29
Accepted
2021-01-29 09:56:48
Documents
1

Document Format Files

Seq Description Document Type Size
1 us3906071093_012921.txt SC 13G/A 11666
  Complete submission text file 0000834237-21-003761.txt   13511
Mailing Address 55 EAST 52ND STREET NEW YORK NY 10055
Business Address 55 EAST 52ND STREET NEW YORK NY 10055 212-810-5300
BlackRock Inc. (Filed by) CIK: 0001364742 (see all company filings)

EIN.: 320174431 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6211 Security Brokers, Dealers & Flotation Companies

Mailing Address 2122 YORK ROAD OAK BROOK IL 60523
Business Address 2122 YORK ROAD OAK BROOK IL 60523 630-574-3000
Great Lakes Dredge & Dock CORP (Subject) CIK: 0001372020 (see all company filings)

EIN.: 205336063 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-82317 | Film No.: 21568760
SIC: 1600 Heavy Construction Other Than Bldg Const - Contractors