David Lawrence Blue - Jul 30, 2025 Form 3 Insider Report for SHOULDER INNOVATIONS, INC. (SI)

Role
Officer Title: Chief Customer Experience Officer Exhibit 24.1 - Power of Attorney
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
Next filing
Aug 5, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Blue David Lawrence Officer Title: Chief Customer Experience Officer Exhibit 24.1 - Power of Attorney C/O SHOULDER INNOVATIONS, INC., 1535 STEELE AVENUE SW, SUITE B, GRAND RAPIDS /s/ Jeffrey S. Points, as Attorney-in-Fact 2025-07-30 0002071751

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 Seed Convertible Preferred Stock Jul 30, 2025 Common Stock 5.24K By David Lawrence Blue Living Trust F1
holding SI Series A Convertible Preferred Stock Jul 30, 2025 Common Stock 18.2K By David Lawrence Blue Living Trust F1
holding SI Series B Convertible Preferred Stock Jul 30, 2025 Common Stock 16.2K By David Lawrence Blue Living Trust F1
holding SI Series C Convertible Preferred Stock Jul 30, 2025 Common Stock 2.44K By David Lawrence Blue Living Trust F1
holding SI Series E Convertible Preferred Stock Jul 30, 2025 Common Stock 1.92K By David Lawrence Blue Living Trust F1
holding SI Stock Option Jul 30, 2025 Common Stock 78.6K $2.10 Direct F2
holding SI Stock Option Jul 30, 2025 Common Stock 28K $2.48 Direct F3
holding SI Stock Option Jul 30, 2025 Common Stock 51.8K $2.86 Direct F4
holding SI Stock Option Jul 30, 2025 Common Stock 10.6K $0.93 By David Lawrence Blue Living Trust F2
holding SI Stock Option Jul 30, 2025 Common Stock 2.62K $0.93 By David Lawrence Blue Living Trust F2
holding SI Stock Option Jul 30, 2025 Common Stock 37.6K $0.93 By David Lawrence Blue Living Trust F2
holding SI Stock Option Jul 30, 2025 Common Stock 1.65K $1.03 By David Lawrence Blue Living Trust 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 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 vested as to one-fourth of the underlying shares on April 19, 2024, and the remaining shares vest in 36 equal increments on the last day of each calendar month thereafter.
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:

Officer Title: Chief Customer Experience Officer Exhibit 24.1 - Power of Attorney