# EDGAR Filing Document

**Accession Number:** 0001699350
**File Stem:** 0001641172-25-021632
**Filing Date:** 2025-7
**Character Count:** 5477
**Document Hash:** ec59e7689c7a9c530cd6266379fb489a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001641172-25-021632.hdr.sgml**: 20250730

**ACCESSION NUMBER**: 0001641172-25-021632

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250730

**FILED AS OF DATE**: 20250730

**DATE AS OF CHANGE**: 20250730

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Gilde Healthcare Holding B.V.
- **CENTRAL INDEX KEY:** 0001420106

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** P7
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42771
- **FILM NUMBER:** 251169042

**BUSINESS ADDRESS:**
- **STREET 1:** NEWTONLAAN 91
- **STREET 2:** PO BOX 85067
- **CITY:** 3508 UTRECHT
- **STATE:** P7
- **ZIP:** AB
- **BUSINESS PHONE:** 31(0)30-2192549

**MAIL ADDRESS:**
- **STREET 1:** NEWTONLAAN 91
- **STREET 2:** PO BOX 85067
- **CITY:** 3508 UTRECHT
- **STATE:** P7
- **ZIP:** AB
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SHOULDER INNOVATIONS, INC.
- **CENTRAL INDEX KEY:** 0001699350
- **STANDARD INDUSTRIAL CLASSIFICATION:** SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 270538764
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 13827 PORT SHELDON STREET
- **CITY:** HOLLAND
- **STATE:** MI
- **ZIP:** 49424
- **BUSINESS PHONE:** 616-566-0286

**MAIL ADDRESS:**
- **STREET 1:** 13827 PORT SHELDON STREET
- **CITY:** HOLLAND
- **STATE:** MI
- **ZIP:** 49424

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Gilde Healthcare Holding B.V.<br><sub>(Last) (First) (Middle)</sub><br>STADSPLATEAU 36<br><sub>(Street)</sub><br>UTRECHT, P7 3521 AZ<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>SHOULDER INNOVATIONS, INC. [ SI ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-07-30 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [X] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Series D Convertible Preferred Stock | <sup>(1)</sup> | <sup>(1)</sup> | Common Stock | 1743156 | <sup>(1)</sup> | I | See Footnote<sup>(2)</sup> |
| Series E Convertible Preferred Stock | <sup>(1)</sup> | <sup>(1)</sup> | Common Stock | 537326 | <sup>(1)</sup> | I | See Footnote<sup>(2)</sup> |

---

### Footnotes:

(1) 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.

(2) Held directly by Cooperatieve Gilde Healthcare V U.A. ("Gilde"). Gilde Healthcare V Management B.V. is the managing director of Gilde and has sole voting and dispositive power with respect to the shares held by Gilde. Gilde Healthcare V Management B.V. is owned by Gilde Healthcare Holding B.V. and managed by Edwin de Graaf and Pieter van der Meer. Geoff Pardo is a partner at Gilde and may be deemed to share voting and dispositive power with respect to the shares held of record by Gilde.

**Signature:** Gilde Healthcare Holding B.V., By: /s/ Edwin de Graaf, Managing Director  
**Date:** 2025-07-30

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**