[Form 4] SI-BONE, Inc. Insider Trading Activity

Rhea-AI Filing Summary

SI-BONE, Inc. (SIBN) – Form 4 insider transaction

Anthony J. Recupero, President of Commercial Operations, disclosed two same-day open-market sales tied to a tax-withholding, “sell-to-cover” arrangement related to vested restricted stock units (RSUs).

• Date: 07/02/2025
• Shares sold: 1,556 at a weighted average price of $18.2802 and 1,754 at $18.2622, totaling 3,310 shares.
• Price ranges: $18.065–18.43 and $18.12–18.42 (per footnotes).
• Purpose: Mandatory sale to satisfy payroll-tax obligations; not a discretionary trade (Footnote 1).
• Post-sale ownership: 279,121 common shares, of which 155,797 are underlying RSUs.

The filing reflects routine tax-related insider activity representing roughly 1.2% of Recupero’s reported holdings, leaving a substantial ownership stake intact.

Positive

• None.

Negative

• Insider disposed of 3,310 shares, signalling limited but still negative optics around insider selling

Insights

Financial Analyst

TL;DR: Small tax-related insider sale; neutral corporate signal.

The Form 4 shows Anthony Recupero sold 3,310 shares—about 1.2% of his 279k-share position—to cover withholding taxes on RSU vesting. Because the transaction is mandated, not discretionary, and his remaining stake is large, it carries limited informational value for investors. No derivative trades or additional dispositions were reported. Overall impact on share-supply dynamics or insider-sentiment indicators is minimal.

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^*

RECUPERO ANTHONY J

(Last) (First) (Middle)

C/O SI-BONE, INC.

471 EL CAMINO REAL, SUITE 101

(Street)

SANTA CLARA CA 95050

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
SI-BONE, Inc. [ SIBN ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President, Commercial Ops

3. Date of Earliest Transaction (Month/Day/Year)
07/02/2025

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

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 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	07/02/2025		S(1)		1,556	D	$18.2802(2)	280,875	D
Common Stock	07/02/2025		S(1)		1,754	D	$18.2622(3)	279,121(4)	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. The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. The sale satisfies the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person.

2. This transaction was executed in multiple trades at prices ranging from $18.065 USD to $18.43 USD; the price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. This transaction was executed in multiple trades at prices ranging from $18.12 USD to $18.42 USD; the price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide Issuer, any security holder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

4. Includes 155,797 shares issuable on the settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

Remarks:

	/s/ Michael A. Pisetsky, Attorney-in-Fact for Anthony J. Recupero	07/07/2025
	** 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.

FAQ

Why did SI-BONE (SIBN) insider Anthony J. Recupero sell shares on 07/02/2025?

The shares were sold solely to cover tax-withholding obligations arising from vested RSUs; the trade was not discretionary.

How many SI-BONE shares did the insider sell?

Recupero sold a total of 3,310 common shares at weighted average prices of $18.2802 and $18.2622.

What is the insider’s remaining ownership after the sale?

He continues to own 279,121 shares, including 155,797 shares underlying RSUs.

At what price range were the SI-BONE shares sold?

Transactions occurred between $18.065–$18.43 and $18.12–$18.42 per share.

Does this sale indicate a strategic change at SI-BONE?

No. Footnote 1 states the sale was solely to satisfy tax obligations and does not represent a discretionary trade.