0002130357 2026-11-09 2026-11-09 0002130357 1 2026-11-09 2026-11-09 0002130357 2 2026-11-09 2026-11-09 iso4217:USD pure shares S-1 S-1/A EX-FILING FEES 333-299633 0002130357 Anthropic, PBC N/A N/A S-1 Anthropic, PBC false Equity Class A common stock, $0.00001 par value per share true 935929488 78.00 73002500064.00 0.000087 6351217.51 true Equity Class A common stock, $0.00001 par value per share true 12820512 78.00 999999936.00 86999.99 74002500000.00 6438217.50 87000.00 0.00 6351217.50 Includes an additional 123,750,000 shares of our Class A common stock that the underwriters have the option to purchase. Estimated solely for the purpose of calculating the registration fee in accordance with Rule 457(a) of the Securities Act of 1933, as amended (the "Securities Act"). We previously paid a registration fee of $87,000 in connection with the initial filing of this registration statement on October 26, 2026. The fee was estimated solely for the purpose of calculating the registration fee in accordance with Rule 457(o) under the Securities Act. The maximum aggregate offering price was originally registered under Rule 457(o) and is now converted to Rule 457(a).