SI-BONE affiliate to sell $110K in stock

SI-BONE, Inc. (SIBN) has an affiliate, Anshul Maheshwari, providing notice of a planned resale of company stock under Rule 144.

Rhea-AI Filing Summary

SI-BONE, Inc. (SIBN) has an affiliate, Anshul Maheshwari, providing notice of a planned resale of company stock under Rule 144. The notice covers up to 5,747 shares of SI-BONE common stock, to be sold through Morgan Stanley Smith Barney LLC on or after August 19, 2026.

The shares were acquired upon vesting of restricted stock units during the period from April 1, 2026 through August 15, 2026. The form also lists prior sales by Maheshwari in the last three months, reflecting additional Rule 144 activity in SI-BONE shares.

Key Figures

Shares planned for sale: 5,747 shares Aggregate market value of planned sale: $109,997.58 Proposed sale date: 08/19/2026 +3 more

6 metrics

Shares planned for sale 5,747 shares Common stock covered by the Rule 144 notice

Aggregate market value of planned sale $109,997.58 Value for 5,747 SI-BONE common shares in planned Rule 144 sale

Proposed sale date 08/19/2026 Date associated with the planned Rule 144 sale of 5,747 shares

Prior sale on 08/17/2026 4,665 shares for $87,015.62 Common stock sold by Anshul Maheshwari during the past 3 months

Prior sale on 07/02/2026 3,317 shares for $55,626.87 Common stock sold by Anshul Maheshwari during the past 3 months

RSU vesting period 04/01/2026–08/15/2026 Period during which restricted stock units vested and generated the shares

Key Terms

Rule 144, restricted stock units, Securities To Be Sold

3 terms

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.

restricted stock units financial

"The securities to be sold were 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.

Securities To Be Sold financial

"144: Securities To Be Sold Common | 04/01/2026 | Restricted Stock Units"

FAQ

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

What does the Form 144 filing indicate for SI-BONE, Inc. (SIBN)?

The Form 144 shows that Anshul Maheshwari plans to sell up to 5,747 shares of SI-BONE common stock under Rule 144, following vesting of restricted stock units between April 1 and August 15, 2026.

How many SI-BONE (SIBN) shares are covered by the planned Rule 144 sale?

The planned sale covers up to 5,747 common shares of SI-BONE. These are to be sold through Morgan Stanley Smith Barney LLC, with the notice indicating a proposed sale date of August 19, 2026.

What is the approximate market value of the SI-BONE (SIBN) shares to be sold?

The notice reports an aggregate market value of about $109,997.58 for the 5,747 shares of SI-BONE common stock covered by the planned Rule 144 sale, based on pricing information provided in the form.

How were the SI-BONE (SIBN) shares in this Form 144 acquired?

The shares were acquired upon the vesting of restricted stock units during the period from April 1, 2026 through August 15, 2026. The issuer of the restricted stock units is SI-BONE, Inc. itself.

What prior SI-BONE (SIBN) sales has Anshul Maheshwari reported in the last three months?

The notice lists sales of 4,665 shares for $87,015.62 on August 17, 2026 and 3,317 shares for $55,626.87 on July 2, 2026, both involving SI-BONE common stock.

On which market are the SI-BONE (SIBN) shares in this Form 144 traded?

The common shares referenced in the notice are traded on NASDAQ. The broker named for the planned sale is Morgan Stanley Smith Barney LLC Executive Financial Services.

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

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Accepted by SEC EDGAR 08/19/2026 - 04:28 PM 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	0001853089
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	ANSHUL MAHESHWARI
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	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	5747	109997.58	44818575	08/19/2026	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	04/01/2026	Restricted Stock Units	Issuer			5747	04/01/2026	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
ANSHUL MAHESHWARI 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	08/17/2026	4665	87015.62
ANSHUL MAHESHWARI 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	07/02/2026	3317	55626.87

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 04/01/2026 through 08/15/2026.
Date of Notice	08/19/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/17/2025
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/ Anshul Maheshwari
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)