SI-BONE CFO Form 4: RSU tax sell-to-cover, 205,073 shares owned

Rhea-AI Filing Summary

SI-BONE, Inc. insider trading report: The Chief Financial Officer of SI-BONE, Inc. (SIBN) reported two sales of common stock on 11/17/2025 totaling 3,460 shares. One sale covered 1,275 shares at a weighted average price of $17.4098, and another covered 2,185 shares at a weighted average price of $17.4369. According to the disclosure, these transactions were "sell to cover" sales required to satisfy tax withholding obligations related to vesting restricted stock units and were not discretionary trades. After these transactions, the reporting person beneficially owned 205,073 shares of common stock, including 143,116 shares issuable upon settlement of restricted stock units.

Insider Trade Summary

Net Seller: 3,460 shares ($60,297)

Net Sell 2 txns

Insider Maheshwari Anshul

Role Chief Financial Officer

Sold 3,460 shs ($60K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,275	$17.4098	$22K
Sale	Common Stock	2,185	$17.4369	$38K

Holdings After Transaction: Common Stock — 207,258 shares (Direct)

Footnotes (1)

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. This transaction was executed in multiple trades at prices ranging from $17.13 USD to $17.55 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. This transaction was executed in multiple trades at prices ranging from $17.32 USD to $17.56 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. Includes 143,116 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.

Form 4 Insider Transactions: What Each Field Means →

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^*

Maheshwari Anshul

(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)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
11/17/2025

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	11/17/2025		S(1)		1,275	D	$17.4098(2)	207,258	D
Common Stock	11/17/2025		S(1)		2,185	D	$17.4369(3)	205,073(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 $17.13 USD to $17.55 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 $17.32 USD to $17.56 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 143,116 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 Pisetsky, Attorney-in-Fact for Anshul Maheshwari	11/19/2025
	** 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

What insider transaction did SI-BONE (SIBN) report in this Form 4?

The Chief Financial Officer of SI-BONE, Inc. (SIBN) reported selling a total of 3,460 shares of common stock on 11/17/2025 in two separate transactions.

Why did the SI-BONE (SIBN) CFO sell shares on 11/17/2025?

The filing states the sale represents shares required to be sold to cover tax withholding obligations related to the vesting of restricted stock units and "does not represent a discretionary trade" by the reporting person.

At what prices were the SI-BONE (SIBN) shares sold by the CFO?

One transaction of 1,275 shares had a weighted average sale price of $17.4098, and another transaction of 2,185 shares had a weighted average sale price of $17.4369, each executed across multiple trades within disclosed price ranges.

How many SI-BONE (SIBN) shares does the CFO own after these transactions?

Following the reported transactions, the CFO beneficially owned 205,073 shares of SI-BONE common stock.

How many SI-BONE (SIBN) restricted stock units does the CFO hold?

The filing notes that the beneficial ownership total includes 143,116 shares issuable upon settlement of restricted stock units, with each unit representing the right to receive one share of common stock.

What is the role of the reporting person in SI-BONE (SIBN)?

The reporting person is identified as an officer of SI-BONE, Inc., serving as the Chief Financial Officer.

Was the SI-BONE (SIBN) Form 4 filed for one or multiple reporting persons?

The Form 4 was filed as a Form filed by One Reporting Person, not by a group.