SI-BONE trust proposes $1.78M share sale

Morgan Stanley Smith Barney LLC is listed as broker, with November 4, 2026, shown as the approximate sale date.

Available on EDGAR 11/04/2026 - 04:21 PM EST Accepted by SEC EDGAR 11/04/2026 - 04:21 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

SI-BONE, Inc. is the issuer for a notice proposing the sale of 75,000 common shares for the account of the David & Laura Francis Joint Rev Tru/A dated January 3, 2003, with an aggregate market value of $1,782,750. The shares were acquired upon vesting of restricted stock units from May 15, 2021, through November 15, 2025.

Key Figures

Proposed shares for sale: 75,000 common shares Aggregate market value: $1,782,750 Common shares outstanding: 45,113,087 shares

3 metrics

Proposed shares for sale 75,000 common shares For the account of the David & Laura Francis Joint Rev Tru/A dated January 3, 2003

Aggregate market value $1,782,750 Proposed-sale information

Common shares outstanding 45,113,087 shares Listed with the proposed-sale information

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 SIBN shares does the trust propose to sell?

The trust proposes to sell 75,000 common shares, with an aggregate market value of $1,782,750. Morgan Stanley Smith Barney LLC is listed as broker, and November 4, 2026, is the approximate sale date.

What recent SIBN sales are listed for the trust and Laura Francis?

The notice lists four trust sales as 10b5-1 sales: 38,006 shares for $762,012.70 on October 12, 2026; 25,972 shares for $522,595.60 on August 24, 2026; 3,923 shares for $78,556.90 on August 21, 2026; and 51,884 shares for $1,009,558.87 on August 20, 2026. It also lists Laura Francis selling 14,956 shares for $279,064.67 on August 17, 2026.

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

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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	88 West Plumeria Drive San Jose CALIFORNIA 95134
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	75000	1782750.00	45113087	11/04/2026	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			75000	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 88 West Plumeria Drive San Jose CA 95134	Common	10/12/2026	38006	762012.70
10b5-1 Sales for DAVID & LAURA FRANCIS JOINT REV TRU/A DTD 01/03/2003 88 West Plumeria Drive San Jose CA 95134	Common	08/24/2026	25972	522595.60
10b5-1 Sales for DAVID & LAURA FRANCIS JOINT REV TRU/A DTD 01/03/2003 88 West Plumeria Drive San Jose CA 95134	Common	08/21/2026	3923	78556.90
10b5-1 Sales for DAVID & LAURA FRANCIS JOINT REV TRU/A DTD 01/03/2003 88 West Plumeria Drive San Jose CA 95134	Common	08/20/2026	51884	1009558.87
LAURA FRANCIS 88 West Plumeria Drive San Jose CA 95134	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.
Date of Notice	11/04/2026
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)