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Shoulder Innovations CEO exercises 89K options

SHOULDER INNOVATIONS, INC.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

SHOULDER INNOVATIONS, INC. (SI) reports that CEO & Executive Chairman Robert Joseph Ball exercised stock options to acquire 89,233 shares of Common Stock on September 14, 2026 at an exercise price of $2.0988 per share, from a fully vested, currently exercisable option expiring December 16, 2030. On the same date, he sold 10,175 shares of Common Stock at a weighted average price of $18.4478 per share, with sale prices ranging from $18.22 to $18.63; the disclosure states these shares were sold solely to cover the exercise price. The filing notes that his Common Stock holdings include 1,748 shares acquired on June 30, 2026 under the 2025 Employee Stock Purchase Plan, and no Rule 10b5-1 trading plan is reported.

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Insider Ball Robert Joseph
Role CEO & Executive Chairman
Sold 10,175 shs ($188K)
Approx. gross sale proceeds $188K
Approx. exercise cost $187K
Type Security Shares Price Value
Exercise Stock Option F3 89,233 $0.00 $0.00
Exercise Common Stock F1 89,233 $2.0988 $187K
Sale Common Stock F2 10,175 $18.4478 $188K
Holdings After Transaction: Stock Option — 92,143 contracts (Direct); Common Stock — 380,824 shares (Direct)
Footnotes (3)
  1. F1. Includes 1,748 shares of Common Stock acquired on June 30, 2026 pursuant to the Issuer's 2025 Employee Stock Purchase Plan.
  2. F2. The price reported in Column 4 is a weighted average sale price. The shares of Common Stock were sold in multiple transactions at prices ranging from $18.22 to $18.63, inclusive. The Reporting Person undertakes to provide upon request by the staff of the Securities & Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth herein. The shares of Common Stock were sold solely to cover the exercise price in connection with the exercise of the stock option.
  3. F3. The stock option is fully vested and currently exercisable.
Shares acquired via option exercise 89,233 shares Common Stock acquired by option exercise on September 14, 2026
Option exercise price $2.0988 per share Exercise price for 89,233-share stock option
Shares sold 10,175 shares Common Stock sold on September 14, 2026
Weighted average sale price $18.4478 per share Sale prices ranged from $18.22 to $18.63 per share
Stock option expiration December 16, 2030 Expiration date of the exercised stock option
Shares from Employee Stock Purchase Plan 1,748 shares Common Stock acquired June 30, 2026 under 2025 Employee Stock Purchase Plan
Remaining stock options reported 92,143 options Stock options held directly following the reported exercise
stock option financial
"The stock option is fully vested and currently exercisable."
A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.
weighted average sale price financial
"The price reported in Column 4 is a weighted average sale price."
Employee Stock Purchase Plan financial
"shares of Common Stock acquired ... pursuant to the Issuer's 2025 Employee Stock Purchase Plan."
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
Common Stock financial
"The shares of Common Stock were sold in multiple transactions"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

What did SI’s CEO Robert Joseph Ball report in this Form 4 for SHOULDER INNOVATIONS, INC. (SI)?

He reported exercising stock options to acquire 89,233 shares of Common Stock at $2.0988 per share on September 14, 2026, and selling 10,175 shares at a weighted average price of $18.4478 per share on the same date.

What prices were involved in the SI stock transactions reported by the CEO?

The options were exercised at an exercise price of $2.0988 per share. The 10,175 shares of Common Stock sold were transacted at a weighted average price of $18.4478 per share, with individual sale prices ranging from $18.22 to $18.63.

Why did the SI CEO sell 10,175 shares of SHOULDER INNOVATIONS, INC. Common Stock?

The filing states that the 10,175 shares of Common Stock sold on September 14, 2026 were sold solely to cover the exercise price in connection with the stock option exercise.

What are the key terms of the stock option exercised by the SI CEO?

The reported stock option covered 89,233 underlying shares of Common Stock, had an exercise price of $2.0988 per share, is described as fully vested and currently exercisable, and carries an expiration date of December 16, 2030.

Does the SI Form 4 indicate trades under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and there is no statement in the footnotes indicating that the reported transactions were made under a Rule 10b5-1 trading plan.

What additional SI shares does the CEO hold from the Employee Stock Purchase Plan?

The filing notes that his reported Common Stock holdings include 1,748 shares acquired on June 30, 2026 under SHOULDER INNOVATIONS, INC.’s 2025 Employee Stock Purchase Plan.

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

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SEC Form 4
FORM 4UNITED 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*
Ball Robert Joseph

(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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
CEO & Executive Chairman
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/14/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock09/14/2026M89,233A$2.0988390,999(1)D
Common Stock09/14/2026S10,175D$18.4478(2)380,824D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option$2.098809/14/2026M89,233 (3)12/16/2030Common Stock89,233$092,143D
Explanation of Responses:
1. Includes 1,748 shares of Common Stock acquired on June 30, 2026 pursuant to the Issuer's 2025 Employee Stock Purchase Plan.
2. The price reported in Column 4 is a weighted average sale price. The shares of Common Stock were sold in multiple transactions at prices ranging from $18.22 to $18.63, inclusive. The Reporting Person undertakes to provide upon request by the staff of the Securities & Exchange Commission, the Issuer or any security holder of the Issuer, full information regarding the number of shares of Common Stock sold at each separate price within the range set forth herein. The shares of Common Stock were sold solely to cover the exercise price in connection with the exercise of the stock option.
3. The stock option is fully vested and currently exercisable.
Remarks:
/s/ Jeffrey Points, as Attorney-in-Fact09/14/2026
** Signature of Reporting PersonDate
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)

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