Robert Joseph Ball - Aug 1, 2025 Form 4 Insider Report for SHOULDER INNOVATIONS, INC. (SI)

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
Next filing
Sep 15, 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Ball Robert Joseph CEO & EXECUTIVE CHAIRMAN, Director C/O SHOULDER INNOVATIONS, INC., 1535 STEELE AVENUE SW, SUITE B, GRAND RAPIDS Jeffrey Points, as Attorney-in-Fact 2025-08-05 0002070664

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SI Common Stock Conversion of derivative security +85.9K +494.43% 103K Aug 1, 2025 Direct F1

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 Seed Convertible Preferred Stock Conversion of derivative security -222K -100% 0 Aug 1, 2025 Common Stock 11.7K Direct F1
transaction SI Series A Convertible Preferred Stock Conversion of derivative security -176K -100% 0 Aug 1, 2025 Common Stock 9.23K Direct F1
transaction SI Series B Convertible Preferred Stock Conversion of derivative security -387K -100% 0 Aug 1, 2025 Common Stock 20.3K Direct F1
transaction SI Series D Convertible Preferred Stock Conversion of derivative security -707K -100% 0 Aug 1, 2025 Common Stock 37K Direct F1
transaction SI Series E Convertible Preferred Stock Conversion of derivative security -146K -100% 0 Aug 1, 2025 Common Stock 7.68K 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.