Shoulder Innovations insider files initial holdings

Q: How many common shares does Jonathan E. Osborne directly own in SI?

Jonathan E. Osborne directly owns 60,355 shares of SHOULDER INNOVATIONS, INC. (SI) Common Stock. This stake is reported as direct ownership, separate from his additional holdings through stock options over further common shares.

Q: What stock options over SI common shares does Osborne hold at lower exercise prices?

Osborne holds options over 24,870 SI common shares at $2.48 per share expiring July 12, 2034, and options over 19,423 shares at $2.86 per share expiring April 23, 2035, all reported as directly owned derivative securities.

Q: What is the largest stock option grant reported by Jonathan E. Osborne in SI?

The largest grant is a stock option over 126,357 SI common shares at an exercise price of $14.16 per share, expiring on January 30, 2033. Footnotes state it vests one-fourth of the underlying shares each March 1, beginning in 2027.

Q: How do Osborne’s SI stock options vest according to the Form 3 footnotes?

One option vested one-fourth on September 7, 2024, with remaining shares vesting in 12 quarterly increments from September 30, 2024. Another vested one-fourth on April 1, 2026, with similar quarterly vesting, while a third vests one-fourth annually each March 1 starting 2027.

SHOULDER INNOVATIONS, INC. reports that Chief Commercial Officer Jonathan E. Osborne beneficially owns 60,355 shares of Common Stock directly.

Filing Impact

(Moderate)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

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Form Type

Rhea-AI Filing Summary

SHOULDER INNOVATIONS, INC. reports that Chief Commercial Officer Jonathan E. Osborne beneficially owns 60,355 shares of Common Stock directly. He also holds stock options over 24,870 shares at an exercise price of $2.48 expiring on July 12, 2034, 19,423 shares at $2.86 expiring on April 23, 2035, and 126,357 shares at $14.16 expiring on January 30, 2033. Footnotes describe graded vesting schedules, including options that vested one-fourth initially with the remainder vesting in 12 equal quarterly increments, and another grant vesting one-fourth annually on March 1 starting in 2027.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Osborne Jonathan E.

Role Chief Commercial Officer

Type	Security	Shares	Price	Value
holding	Stock Option ^F1	--	--	--
holding	Stock Option ^F2	--	--	--
holding	Stock Option ^F3	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Stock Option — 170,650 contracts (Direct); Common Stock — 60,355 shares (Direct)

Footnotes (3)

F1. The stock option vested as to one-fourth of the underlying shares on September 7, 2024, and the remaining shares vest in 12 equal increments on the last day of each fiscal quarter beginning on September 30, 2024.
F2. The stock option vested as to one-fourth of the underlying shares on April 1, 2026, and the remaining shares vest in 12 equal increments on the last day of each fiscal quarter beginning on June 30, 2026.
F3. The stock option vests as to one-fourth of the underlying shares on March 1st each year, beginning on March 1, 2027.

Key Figures

Direct common shares owned: 60,355 shares Option underlying shares @ $2.48: 24,870 shares Option underlying shares @ $2.86: 19,423 shares +1 more

4 metrics

Direct common shares owned 60,355 shares Direct beneficial ownership of Common Stock reported by Jonathan E. Osborne

Option underlying shares @ $2.48 24,870 shares Stock option over Common Stock at $2.48, expiring July 12, 2034

Option underlying shares @ $2.86 19,423 shares Stock option over Common Stock at $2.86, expiring April 23, 2035

Option underlying shares @ $14.16 126,357 shares Stock option over Common Stock at $14.16, expiring January 30, 2033

Key Terms

beneficially owns, stock option, underlying shares, vests as to one-fourth

4 terms

beneficially owns financial

"reports that Chief Commercial Officer Jonathan E. Osborne beneficially owns 60,355 shares"

Beneficially owns means a person or entity enjoys the economic benefits and control of a security even if the legal title or registration is held in another name. Think of it like having the keys and profits from a car that is registered to a friend: you use it, benefit from it, and make decisions about it even though the official paperwork lists someone else. For investors, this matters because it reveals who truly controls shares, affects voting power, potential conflicts of interest, and regulatory disclosure obligations.

stock option financial

"The stock option vested as to one-fourth of the underlying shares on September 7, 2024"

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.

underlying shares financial

"The stock option vested as to one-fourth of the underlying shares on April 1, 2026"

vests as to one-fourth financial

"The stock option vests as to one-fourth of the underlying shares on March 1st each year"

FAQ

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

What insider position did SI’s Jonathan E. Osborne report on Form 3?

Jonathan E. Osborne, Chief Commercial Officer of SHOULDER INNOVATIONS, INC. (SI), reported direct beneficial ownership of 60,355 shares of Common Stock, plus several stock option grants over additional shares with specified exercise prices and expiration dates.

How many common shares does Jonathan E. Osborne directly own in SI?

Jonathan E. Osborne directly owns 60,355 shares of SHOULDER INNOVATIONS, INC. (SI) Common Stock. This stake is reported as direct ownership, separate from his additional holdings through stock options over further common shares.

What stock options over SI common shares does Osborne hold at lower exercise prices?

Osborne holds options over 24,870 SI common shares at $2.48 per share expiring July 12, 2034, and options over 19,423 shares at $2.86 per share expiring April 23, 2035, all reported as directly owned derivative securities.

What is the largest stock option grant reported by Jonathan E. Osborne in SI?

The largest grant is a stock option over 126,357 SI common shares at an exercise price of $14.16 per share, expiring on January 30, 2033. Footnotes state it vests one-fourth of the underlying shares each March 1, beginning in 2027.

How do Osborne’s SI stock options vest according to the Form 3 footnotes?

One option vested one-fourth on September 7, 2024, with remaining shares vesting in 12 quarterly increments from September 30, 2024. Another vested one-fourth on April 1, 2026, with similar quarterly vesting, while a third vests one-fourth annually each March 1 starting 2027.

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

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Accepted by SEC EDGAR 08/10/2026 - 04:34 PM EDT

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Osborne Jonathan E.

(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. Date of Event Requiring Statement (Month/Day/Year)
08/06/2026

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

3a. Foreign Trading Symbol

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

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

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

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	60,355	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Option	⁽¹⁾	07/12/2034	Common Stock	24,870	$2.48	D
Stock Option	⁽²⁾	04/23/2035	Common Stock	19,423	$2.86	D
Stock Option	⁽³⁾	01/30/2033	Common Stock	126,357	$14.16	D

Explanation of Responses:

1. The stock option vested as to one-fourth of the underlying shares on September 7, 2024, and the remaining shares vest in 12 equal increments on the last day of each fiscal quarter beginning on September 30, 2024.

2. The stock option vested as to one-fourth of the underlying shares on April 1, 2026, and the remaining shares vest in 12 equal increments on the last day of each fiscal quarter beginning on June 30, 2026.

3. The stock option vests as to one-fourth of the underlying shares on March 1st each year, beginning on March 1, 2027.

Remarks:

Exhibit 24, Power of Attorney is attached.

	/s/ Jeffrey Points, as Attorney-in-Fact	08/10/2026
	** 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 5 (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 3: SEC 1473 (03-26)

Source: View Original Filing on SEC EDGAR