Shoulder Innovations director awarded 5,046 RSUs

Buchholz Richard reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Buchholz Richard reported acquisition or exercise transactions in this Form 4 filing.

SHOULDER INNOVATIONS, INC. director Richard Buchholz reported an equity compensation grant in the form of restricted stock units (RSUs). He was awarded 5,046 RSUs, each representing a contingent right to receive one share of common stock at no cash cost.

The RSUs will vest on the earlier of the company’s annual meeting of stockholders to be held in 2027 or June 26, 2027. Following this grant, Buchholz’s reported direct holdings total 18,712 shares of common stock, reflecting a routine, compensation-related increase in his equity stake.

Insider Trade Summary

Grant/Award: 5,046 shares

Grant/Award 1 txn

Insider Buchholz Richard

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	5,046	$0.00	$0.00

Holdings After Transaction: Common Stock — 18,712 shares (Direct)

Footnotes (1)

1. F1. Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2027 or June 26, 2027. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date.

Key Figures

RSUs granted: 5,046 units Grant price per RSU: $0.00 per unit Shares after transaction: 18,712 shares +1 more

4 metrics

RSUs granted 5,046 units Equity award to director on June 26, 2026

Grant price per RSU $0.00 per unit Compensation grant, not market purchase

Shares after transaction 18,712 shares Director’s direct common stock holdings following grant

Vesting latest date June 26, 2027 RSUs vest by earlier of 2027 annual meeting or this date

Key Terms

restricted stock units ("RSUs"), contingent right, annual meeting of stockholders

3 terms

restricted stock units ("RSUs") financial

"Represents an award of restricted stock units ("RSUs")."

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

contingent right financial

"Each RSU represents a contingent right to receive one share of the Issuer's Common Stock"

annual meeting of stockholders financial

"The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2027"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Richard Buchholz acquire in the latest SHOULDER INNOVATIONS (SI) Form 4 filing?

Richard Buchholz received a grant of 5,046 restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of SHOULDER INNOVATIONS common stock, increasing his equity-based compensation without requiring a cash payment.

When do Richard Buchholz’s 5,046 SHOULDER INNOVATIONS (SI) RSUs vest?

The 5,046 RSUs will vest on the earlier of the company’s 2027 annual meeting of stockholders or June 26, 2027. Vesting means the units convert into common shares, subject to the grant’s terms and continued service conditions, if any.

How many SHOULDER INNOVATIONS (SI) shares does Richard Buchholz hold after this RSU grant?

After the award of 5,046 RSUs, Richard Buchholz’s reported direct holdings are 18,712 shares of SHOULDER INNOVATIONS common stock. This figure reflects his position following the transaction disclosed in the Form 4, as reported in the filing’s ownership table.

Was Richard Buchholz’s SHOULDER INNOVATIONS (SI) transaction a market purchase or sale?

The transaction was not a market buy or sell; it was coded as “A” for a grant or award. Buchholz acquired 5,046 RSUs at a price of $0.00 per unit as part of his director compensation, rather than trading shares on the open market.

What does each SHOULDER INNOVATIONS (SI) RSU granted to Richard Buchholz represent?

Each RSU represents a contingent right to receive one share of SHOULDER INNOVATIONS common stock. The RSUs have no expiration date and convert into shares when they vest, assuming the vesting conditions set out in the award are satisfied.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/29/2026 - 04:21 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Buchholz Richard

(Last) (First) (Middle)

C/O SHOULDER INNOVATIONS, INC.

1535 STEELE AVENUE SW, SUITE B

(Street)

GRAND RAPIDS MICHIGAN 49507

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
SHOULDER INNOVATIONS, INC. [ SI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/26/2026		A		5,046(1)	A	$0	18,712	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents an award of restricted stock units ("RSUs"). The RSUs will vest on the earlier of the date of the annual meeting of stockholders to be held in 2027 or June 26, 2027. Each RSU represents a contingent right to receive one share of the Issuer's Common Stock and has no expiration date.

Remarks:

	/s/ Jeffrey Points, as Attorney-in-Fact	06/29/2026
	** Signature of Reporting Person	Date
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.
* Form 4: SEC 1474 (03-26)