X0609 4 2026-05-19 0 0001925283 Lincoln International, Inc. LCLN 0001566571 Heidloff Theodore J. false 110 NORTH WACKER DRIVE, 51ST FLOOR CHICAGO IL 60606 0 1 0 0 Chief Financial Officer 0 Class B Common Stock 2026-05-19 4 A 0 341250 A 341250 D Class A Common Stock 2026-05-21 4 A 0 25000 0 A 25000 D Class B Common Stock 2026-05-21 4 D 0 34124 D 307126 D Common Units 2026-05-19 4 A 0 341250 A Class A Common Stock 341250 341250 D Stock Option 6.83 2026-05-19 4 A 0 8450 0 A 2026-12-31 Common Units 8450 8450 D Stock Option 9.09 2026-05-19 4 A 0 8450 0 A 2027-12-31 Common Units 8450 8450 D Stock Option 6.83 2026-05-19 4 A 0 7800 0 A 2027-12-31 Common Units 7800 7800 D Stock Option 9.09 2026-05-19 4 A 0 8450 0 A 2028-12-31 Common Units 8450 8450 D Stock Option 9.09 2026-05-19 4 A 0 7800 0 A 2029-12-31 Common Units 7800 7800 D Stock Option 9.09 2026-05-19 4 A 0 7800 0 A 2030-12-31 Common Units 7800 7800 D Common Units 2026-05-21 4 D 0 34124 20 D Class A Common Stock 34124 307126 D This transaction occurred prior to the Issuer's registration of a class of equity securities under Section 12 of the Securities Exchange Act of 1934, as amended, in connection with the Issuer's initial public offering, and is reported herein pursuant to Rule 16a-2(a). Represents an acquisition of Common Units and a corresponding number of Class B Common Stock pursuant to a reorganization of the Issuer. Represents an award of restricted stock units ("RSUs'), each of which represents a contingent right to receive one share of Class A Common Stock. The RSUs vest in two substantially equal annual installments on each of the third and fourth anniversaries of May 21, 2026. Reflects the cancellation for no consideration of Class B Common Stock in connection with the sale of Common Units. The common units of Lincoln International, LP ("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. The stock option vests in full on January 1, 2027. The stock option vests in full on April 1, 2027. The stock option vests in full on January 1, 2028. The stock option vests in full on January 1, 2029. The stock option vests in full on January 1, 2030. /s/ Julie Nelson, Attorney-in-Fact 2026-05-26