Kevin K. Sidow - Aug 1, 2025 Form 4 Insider Report for SHOULDER INNOVATIONS, INC. (SI)

Role
Director
Signature
Jeffrey Points, as Attorney-in-Fact
Stock symbol
SI
Transactions as of
Aug 1, 2025
Transactions value $
$0
Form type
4
Date filed
8/5/2025, 04:05 PM
Previous filing
Jul 30, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Sidow Kevin K. Director C/O SHOULDER INNOVATIONS, INC., 1535 STEELE AVENUE SW, SUITE B, GRAND RAPIDS Jeffrey Points, as Attorney-in-Fact 2025-08-05 0002072468

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SI Common Stock Conversion of derivative security +12.3K 12.3K Aug 1, 2025 Direct F1
transaction SI Common Stock Award $0 +7.67K +62.1% $0.00 20K Aug 1, 2025 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SI Series D Convertible Preferred Stock Conversion of derivative security -236K -100% 0 Aug 1, 2025 Common Stock 12.3K Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Immediately prior to the closing of the Issuer's initial public offering, the shares of preferred stock of the Issuer automatically converted into shares of Common Stock on a one-for-0.052410901 basis.
F2 Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2026 or August 1, 2026. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date.