Employer with a benefit plan ยท SEC filer
HOUGHTON MIFFLIN HARCOURT PUBLISHING COMPANY
Also filed as HOUGHTON MIFFLIN CO; HOUGHTON MIFFLIN CO/FA
125 HIGH STREET, BOSTON, MA 02110
EIN
04-1456030
Benefit plan 520, 2024 filing
HOUGHTON MIFFLIN HARCOURT PUBLISHING CO. BENEFIT PLAN
DOL · 2026-07-09
Participants (start of year)
2,874
DOL · 2026-07-09
Plan features
code 4A4B4D4E4F4G4H4L4Q
DOL · 2026-07-09
Plan type
Single-employer plan
DOL · 2026-07-09
Business code (NAICS)
511130
DOL · 2026-07-09
Benefit plan 520, 2023 filing
HOUGHTON MIFFLIN HARCOURT PUBLISHING CO. BENEFIT PLAN
DOL · 2026-07-09
Participants (start of year)
2,181
DOL · 2026-07-09
Plan features
code 4A4B4D4E4F4G4H4L4Q
DOL · 2026-07-09
Plan type
Single-employer plan
DOL · 2026-07-09
Business code (NAICS)
511130
DOL · 2026-07-09
Benefit plan 3, 2024 filing
HOUGHTON MIFFLIN 401(K) SAVINGS PLAN
DOL · 2025-10-14
Participants (start of year)
5,290
DOL · 2025-10-14
Plan features
code 2E2G2J2K2R
DOL · 2025-10-14
Plan type
Single-employer plan
DOL · 2025-10-14