David Lawrence Blue - 31 Dec 2025 Form 4 Insider Report for SHOULDER INNOVATIONS, INC. (SI)

Reporting relationship: Officer Title: Chief Customer Experience Officer
Issuer ticker: SI
Reported as of: 31 Dec 2025
Net transaction value: +$12,659
SEC form: 4
Accepted by SEC: 08 Jan 2026, 17:01:36 UTC
Prior SEC filing: 15 Sep 2025
Next SEC filing: 03 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Jeffrey Points, as Attorney-in-Fact

Key filing fact

David Lawrence Blue filed Form 4 for SHOULDER INNOVATIONS, INC. (SI) on 08 Jan 2026.

Key facts

This page summarizes David Lawrence Blue's Form 4 filing for SHOULDER INNOVATIONS, INC. (SI).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 08 Jan 2026, 17:01.

Change

Previous filing in this sequence was filed on 15 Sep 2025.
Current net transaction value: +$12,659.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002071751 Primary reporting owner

Blue David Lawrence

Relationship: Officer Title: Chief Customer Experience Officer
Address: C/O SHOULDER INNOVATIONS, INC., 1535 STEELE AVENUE SW, SUITE B, GRAND RAPIDS
Signature: /s/ Jeffrey Points, as Attorney-in-Fact
Signature date: 08 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SI transaction

Common Stock

Award

Transaction value: $12,659
Shares: +1,041
Change %: +0.75%
Price: $12.16
Shares after: 139,372
Date: 31 Dec 2025
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The Reporting Person is voluntarily reporting the acquisition of shares under the Issuer's 2025 Employee Stock Purchase Plan ("ESPP") .

Footnote F2

In accordance with the ESPP, these shares were purchased at a price equal to 85% of the closing price of the Issuer's common stock on December 31, 2025.

SEC remarks

Officer Title: Chief Customer Experience Officer