SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000902219-22-000029
Filing Date
2022-04-11
Accepted
2022-04-11 08:51:33
Documents
1

Document Format Files

Seq Description Document Type Size
1 SEC SCHEDULE 13G SEC13G_Filing.htm SC 13G/A 31124
  Complete submission text file 0000902219-22-000029.txt   33040
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)

IRS No.: 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)

IRS No.: 271566372 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-87720 | Film No.: 22818562
SIC: 2731 Books: Publishing or Publishing & Printing
Office of Manufacturing