0002021880 2026-09-25 2026-09-25 0002021880 1 2026-09-25 2026-09-25 iso4217:USD pure shares S-1 S-1 EX-FILING FEES 0002021880 HMH Holding Inc N/A N/A S-1 HMH Holding Inc false Equity Class A common stock, par value $0.01 per share true 31891652 18.65 594779309.80 0.0001381 82139.02 594779309.80 82139.02 0.00 0.00 82139.02 Estimated in accordance with Rule 457(c) under the Securities Act of 1933, as amended, solely for purposes of calculating the registration fee, based on the average of the high and low sales prices of the Class A common stock, par value $0.01 per share ("Class A Common Stock"), of HMH Holding Inc. as reported on The Nasdaq Global Select Market on September 23, 2026. Represents shares of Class A Common Stock that may be sold by the selling stockholders identified in this Registration Statement on Form S-1.