X0609 4 2026-08-14 0001925283 Lincoln International, Inc. LCLN 0001566571 Heidloff Theodore J. false 110 NORTH WACKER DRIVE, 51ST FLOOR CHICAGO IL 60606 false true false false Chief Financial Officer false Class B Common Stock 2026-08-14 4 A false 8450 A 315576 D Stock Option 6.83 2026-08-14 4 M false 8450 0 D 2026-12-31 Common Units 8450 0 D Common Units 2026-08-14 4 M false 8450 6.83 A Class A Common Stock 8450 315576 D Represents common units of Lincoln International, LP ("Common Units") issued pursuant to the exercise of a Stock Option and a corresponding number of Class B Common Stock. The Common Units may be redeemed by the Reporting Person at any time at the option of the holder for shares of Class A Common Stock on a 1-to-1 basis, and a corresponding number of shares of Class B Common Stock will be forfeited in connection with the redemption. The Common Units have no expiration date. The stock option is fully vested and exercisable. /s/ Julie Nelson, Attorney-in-Fact 2026-08-17