SI-BONE CEO trust sells 25,972 shares at $20.1215

Rhea-AI Filing Summary

SI-BONE, Inc. (SIBN) reported that Chief Executive Officer and director Laura Francis, through The David & Laura Joint Rev Tr., sold 25,972 shares of common stock on 2026-08-24 at a weighted-average price of $20.1215 per share, in transactions ranging from $20.00 to $20.24, pursuant to a Rule 10b5-1 trading plan dated May 21, 2026. Following this sale, the trust holds 291,491 shares indirectly, and Francis also has 493,900 shares held directly, including 355,697 shares issuable upon settlement of restricted stock units, each RSU representing a right to receive one share of common stock.

Insider Trade Summary 10b5-1

Net Seller: 25,972 shares

Net Sell 2 txns

Insider FRANCIS LAURA

Role Chief Executive Officer

Sold 25,972 shs ($523K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2, F3	25,972	$20.1215	$523K
holding	Common Stock F4	--	--	--

Holdings After Transaction: Common Stock — 291,491 shares (Indirect, by Trust); Common Stock — 493,900 shares (Direct)

Footnotes (4)

1. F1. The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan dated May 21, 2026.
2. F2. The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $20.00 to $20.24, inclusive. The Reporting Person undertakes to provide the Issuer, any securityholder 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 these footnotes.
3. F3. Shares held by The David & Laura Joint Rev Tr.
4. F4. Includes 355,697 shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one shares of the Issuer's common stock.

Key Figures

Shares sold: 25,972 shares of Common Stock Weighted-average sale price: $20.1215 per share Indirect holdings after sale: 291,491 shares +3 more

6 metrics

Shares sold 25,972 shares of Common Stock Sale by The David & Laura Joint Rev Tr. on 2026-08-24

Weighted-average sale price $20.1215 per share Common Stock sold on 2026-08-24, with trades from $20.00 to $20.24

Indirect holdings after sale 291,491 shares Shares held by The David & Laura Joint Rev Tr. following the transaction

Direct holdings after transaction 493,900 shares Common Stock held directly by Laura Francis after the reported transactions

Restricted stock units 355,697 shares issuable on settlement of RSUs Included within direct holdings; each RSU represents one share of common stock

Rule 10b5-1 plan date May 21, 2026 Date of trading plan under which the August 24, 2026 sale was effected

Key Terms

Rule 10b5-1 trading plan, weighted-average price, restricted stock units, contingent right

4 terms

Rule 10b5-1 trading plan regulatory

"The sale reported on this Form 4 was effected pursuant to a 10b5-1 trading plan dated May 21, 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted-average price financial

"The price reported in column 4 is a weighted-average price."

Weighted-average price is the average of multiple prices where each price is counted according to its size or importance—larger trades carry more weight than smaller ones, like averaging course grades by credit hours. It matters to investors because it gives a more realistic picture of the true price paid or received, helping assess trade execution, compare performance, calculate cost basis, and value positions more accurately than a simple average.

restricted stock units financial

"Includes 355,697 shares issuable on settlement of restricted stock units granted to the Reporting Person."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

contingent right financial

"Each restricted stock unit represents a contingent right to receive one shares of the Issuer's common stock."

FAQ

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

What insider transaction did SIBN report for CEO Laura Francis on August 24, 2026?

SIBN reported that CEO Laura Francis, via The David & Laura Joint Rev Tr., sold 25,972 shares of common stock on 2026-08-24 at a weighted-average price of $20.1215 per share, with individual trade prices ranging from $20.00 to $20.24.

Was the August 24, 2026 SIBN insider sale under a Rule 10b5-1 trading plan?

Yes. The filing states that the sale reported on August 24, 2026 was effected pursuant to a Rule 10b5-1 trading plan dated May 21, 2026, indicating the trades were pre-arranged under that plan.

How many SIBN shares does CEO Laura Francis hold indirectly after the reported sale?

After the reported sale, The David & Laura Joint Rev Tr. holds 291,491 shares of SI-BONE common stock indirectly for CEO Laura Francis, as disclosed in the Form 4.

What are CEO Laura Francis’s direct SIBN holdings after the transaction?

The Form 4 shows that CEO Laura Francis holds 493,900 shares of SI-BONE common stock directly after the transaction, which includes 355,697 shares issuable upon settlement of restricted stock units.

What price range applied to the August 24, 2026 SIBN insider sales?

The filing reports a weighted-average price of $20.1215 per share for the 25,972 shares sold, with individual sale prices in multiple transactions ranging from $20.00 to $20.24, inclusive.

How many restricted stock units does SIBN’s CEO have outstanding according to this Form 4?

According to the Form 4, CEO Laura Francis’s direct holdings include 355,697 shares issuable on settlement of restricted stock units, with each restricted stock unit representing a contingent right to receive one share of SI-BONE common stock.

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

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Available on EDGAR 08/26/2026 - 07:06 PM EDT Accepted by SEC EDGAR 08/26/2026 - 07:06 PM EDT 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).

X

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^*

FRANCIS LAURA

(Last) (First) (Middle)

C/O SI-BONE, INC.

471 EL CAMINO REAL, SUITE 101

(Street)

SANTA CLARA CALIFORNIA 95050

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/24/2026

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	08/24/2026		S(1)		25,972	D	$20.1215(2)	291,491	I	by Trust(3)
Common Stock								493,900(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 was effected pursuant to a 10b5-1 trading plan dated May 21, 2026.

2. The price reported in column 4 is a weighted-average price. The shares were sold in multiple transactions ranging from $20.00 to $20.24, inclusive. The Reporting Person undertakes to provide the Issuer, any securityholder 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 these footnotes.

3. Shares held by The David & Laura Joint Rev Tr.

4. Includes 355,697 shares issuable on settlement of restricted stock units granted to the Reporting Person. Each restricted stock unit represents a contingent right to receive one shares of the Issuer's common stock.

Remarks:

	/s/ Michael A. Pisetsky, Attorney-in-Fact for Laura A. Francis	08/26/2026
	** 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)