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  4. [144] SI-BONE, Inc. SEC Filing

SI-BONE (NASDAQ: SIBN) affiliate plans $110K stock sale

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
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.

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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
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

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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144: Filer Information

144: Issuer Information

144: Securities Information



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


* 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

144: Remarks and Signature

Source: View Original Filing on SEC EDGAR