SI-BONE trust lists 38,006 shares for sale

The securities listed for sale were acquired upon restricted stock unit vesting between May 15, 2021, and November 15, 2025.

Rhea-AI Filing Summary

SI-BONE, Inc. is named as issuer in a Form 144 notice listing 38,006 common shares for sale for the account of David & Laura Francis Joint Rev Tru/A Dtd January 3, 2003, with Morgan Stanley Smith Barney LLC listed as broker. The stated aggregate market value is $736,176.22; shares outstanding were 44,818,575 as of October 12, 2026. The remarks say the securities were acquired upon restricted stock unit vesting between May 15, 2021, and November 15, 2025, and that sales executed October 12, 2026, are being reported. Laura Francis signed the notice; a past-sales entry lists 14,956 shares for her on August 17, 2026, for $279,064.67.

Key Figures

Shares listed for sale: 38,006 shares Aggregate market value: $736,176.22 Shares outstanding: 44,818,575 shares +2 more

5 metrics

Shares listed for sale 38,006 shares SI-BONE common stock for the trust account

Aggregate market value $736,176.22 Shares listed for sale

Shares outstanding 44,818,575 shares As of October 12, 2026

Prior reported sale 25,972 shares; $522,595.60 August 24, 2026; listed under 10b5-1 sales for the trust

Prior sale listed for Laura Francis 14,956 shares; $279,064.67 August 17, 2026

Key Terms

Restricted Stock Units, 10b5-1 Sales, Rule 144

3 terms

Restricted Stock Units financial

"acquired upon the vesting of restricted stock units"

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.

10b5-1 Sales regulatory

"10b5-1 Sales for DAVID & LAURA FRANCIS JOINT REV TRU/A"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

FAQ

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

How many SI-BONE shares are listed in the Form 144 notice, and what is their stated value?

The notice lists 38,006 common shares for sale for the account of David & Laura Francis Joint Rev Tru/A Dtd January 3, 2003, with a stated aggregate market value of $736,176.22.

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

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Available on EDGAR 10/13/2026 - 08:19 AM EDT Accepted by SEC EDGAR 10/13/2026 - 08:19 AM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001218802
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	SI-BONE, INC.
SEC File Number	001-38701
Address of Issuer	471 El Camino Real, Suite 101 Santa Clara CALIFORNIA 95050
Phone	4082070700
Name of Person for Whose Account the Securities are To Be Sold	DAVID & LAURA FRANCIS JOINT REV TRU/A DTD 01/03/2003
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	38006	736176.22	44818575	10/12/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/15/2021	Restricted Stock Units	Issuer			38006	05/15/2021	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for DAVID & LAURA FRANCIS JOINT REV TRU/A DTD 01/03/2003 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	08/24/2026	25972	522595.60
10b5-1 Sales for DAVID & LAURA FRANCIS JOINT REV TRU/A DTD 01/03/2003 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	08/21/2026	3923	78556.90
10b5-1 Sales for DAVID & LAURA FRANCIS JOINT REV TRU/A DTD 01/03/2003 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	08/20/2026	51884	1009558.87
LAURA FRANCIS 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	08/17/2026	14956	279064.67

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 5/15/2021 through 11/15/2025. Sales that were executed on October 12, 2026 are being reported on this Form 144 filed on October 13, 2026 given the EDGAR system was not accepting filings on October 12, 2026 in observance of the federal holiday.
Date of Notice	10/12/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/21/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Laura Francis
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)