Paul Buckman - Jul 30, 2025 Form 3 Insider Report for SHOULDER INNOVATIONS, INC. (SI)

Role
Director
Signature
/s/ Jeffrey S. Points, as Attorney-in-Fact
Stock symbol
SI
Transactions as of
Jul 30, 2025
Transactions value $
$0
Form type
3
Date filed
7/30/2025, 09:38 PM
Previous filing
Jul 3, 2025
Next filing
Aug 5, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
BUCKMAN PAUL Director C/O SHOULDER INNOVATIONS, INC., 1535 STEELE AVENUE SW, SUITE B, GRAND RAPIDS /s/ Jeffrey S. Points, as Attorney-in-Fact 2025-07-30 0001215243

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
holding SI Series D Convertible Preferred Stock Jul 30, 2025 Common Stock 6.2K Direct F1
holding SI Stock Option Jul 30, 2025 Common Stock 26.2K $2.10 Direct F2
holding SI Stock Option Jul 30, 2025 Common Stock 20.5K $2.48 Direct F3
holding SI Stock Option Jul 30, 2025 Common Stock 15.2K $2.86 Direct F4
* 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 will automatically convert into shares of Common Stock on a one-for-0.052410901 basis. The shares of preferred stock have no expiration date.
F2 The stock option is fully vested and currently exercisable.
F3 The stock option vests in 36 equal monthly increments beginning on June 30, 2023.
F4 The stock option vests as to one-fourth of the underlying shares on April 1, 2026, and the remaining shares vest in 12 equal increments on the last day of each fiscal quarter beginning on June 30, 2026.

Remarks:

Exhibit 24.1 - Power of Attorney