13D Filings
Shoulder Innovations, Inc.
SI
Amendment
Ownership

10.70%

Total Shares

2,212,207

Issuer CIK

1699350

Event Date

Aug 4, 2026

Accepted

Aug 7, 2026, 05:08 PM

Reporting Persons (5)
Joint Filing

This is a joint filing. The reported shares may overlap between reporting persons and should not be summed.

NameType% of ClassAggregateSole VotingShared Voting
Gilde Healthcare Holding B.V.
Other
10.70%2,212,20702,212,207
Gilde Healthcare V Management B.V.
Other
10.70%2,212,20702,212,207
Cooperatieve Gilde Healthcare V U.A.
Other
10.70%2,212,20702,212,207
Manapouri B.V.
Other
10.70%2,212,20702,212,207
Martemanshurk B.V.
Other
10.70%2,212,20702,212,207
Disclosure Items (2)

Security Title

Common Stock, $0.001 par value per share

Issuer Name

Shoulder Innovations, Inc.

Issuer Address

1535 Steele Avenue SW, Grand Rapids, MI, 49507

Percentage of Class

Item 5(a) of the Schedule 13D is hereby amended and restated as follows: According to the Issuer's Quarterly Report on Form 10-K filed with the Securities and Exchange Commission on May 13, 2026, as of May 6, 2026, there were 20,738,226 shares of the Issuer's Common Stock outstanding. Gilde Healthcare is the record holder of an aggregate of 2,212,207 shares of Common Stock, which represents beneficial ownership of approximately 10.7% of the outstanding shares of Common Stock. GHCVM, as the manager of Gilde Healthcare, has the power to vote and dispose of securities held by Gilde Healthcare and may be deemed to beneficially own the securities held of record by Gilde Healthcare. GHCVM is owned by GHH. The managing partners of GHH are Manapouri B.V. and Martemanshurk B.V. As a result, each of the Reporting Persons may beneficially own an aggregate of 2,212,207 shares of Common Stock, or approximately 10.7% of the outstanding Common Stock.

Transactions

Item 5(c) of the Schedule 13D is hereby amended and supplemented by adding the following: The following transactions were effected by the Reporting Persons during the past 60 days. On July 30, 2026, 28,245 shares of Common Stock were sold at a weighted average price per share of $23.36, in multiple trades ranging from $23.00 to $23.73 per share. On July 31, 2026, 20,034 shares of Common Stock were sold at a weighted average price per share of $22.73, in multiple trades ranging from $22.60 to $23.00 per share. On August 3, 2026, 10,751 shares of Common Stock were sold at a weighted average price per share of $22.71, in multiple trades ranging from $22.60 to $23.05 per share. On August 4, 2026, 99,812 shares of Common Stock were sold at a weighted average price per share of $22.77, in multiple trades ranging from $22.60 to $23.04 per share. On August 5, 2026, 7,338 shares of Common Stock were sold at a weighted average price per share of $22.64, in multiple trades ranging from $22.60 to $23.00 per share. On August 6, 2026, 2,095 shares of Common Stock were sold at a price of $22.60 per share.

Shoulder Innovations, Inc. — Schedule 13D | 13D Filings