Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-20-000036
Filing Date
2020-01-08
Accepted
2020-01-08 15:11:13
Documents
1

Document Format Files

Seq Description Document Type Size
1 SEC SCHEDULE 13G SEC13G_Filing.htm SC 13G/A 35674
  Complete submission text file 0000902219-20-000036.txt   37590
Mailing Address C/O WELLINGTON MANAGEMENT COMPANY LLP 280 CONGRESS STREET BOSTON MA 02210
Business Address C/O WELLINGTON MANAGEMENT COMPANY LLP 280 CONGRESS STREET BOSTON MA 02210 6179515000
WELLINGTON MANAGEMENT GROUP LLP (Filed by) CIK: 0000902219 (see all company filings)

EIN.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

Mailing Address 125 HIGH STREET BOSTON MA 02110
Business Address 125 HIGH STREET BOSTON MA 02110 617-351-5000
Houghton Mifflin Harcourt Co (Subject) CIK: 0001580156 (see all company filings)

EIN.: 271566372 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-87720 | Film No.: 20515553
SIC: 2731 Books: Publishing or Publishing & Printing