SIBN (NASDAQ: SIBN) files Form 144 for 3,500 restricted shares

Rhea-AI Filing Summary

SIBN filed a Form 144 reporting a proposed sale of 3,500 shares of Common Stock described as restricted stock. The filing also records a sale by Timothy E. Davis Jr. of 3,780 shares on 05/28/2026 for $54,698.87.

Insights

Securities Compliance Counsel

Form 144 reports a proposed resale of restricted shares and a recent insider sale.

The filing lists 3,500 shares of restricted common stock proposed for sale and separately shows a prior disposition of 3,780 shares on 05/28/2026 for $54,698.87. Timing and distribution method are not detailed in the excerpt.

Regulatory treatment depends on whether the registration statement is effective and on applicable resale exemptions; subsequent filings would show completion or settlement details.

Key Figures

Proposed resale: 3,500 shares Recent disposition: 3,780 shares Consideration reported: $54,698.87 +1 more

4 metrics

Proposed resale 3,500 shares restricted stock, to be sold per Form 144

Recent disposition 3,780 shares sold on <date>05/28/2026</date> by Timothy E. Davis Jr.

Consideration reported $54,698.87 aggregate amount for the 3,780-share sale on <date>05/28/2026</date>

Broker Morgan Stanley Smith Barney LLC broker listed for the proposed sale

Key Terms

Form 144, Restricted Stock, Securities Sold During The Past 3 Months

3 terms

Form 144 regulatory

"filed a Form 144 reporting a proposed sale of 3,500 shares"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock financial

"Securities To Be Sold ... Restricted Stock ... 3,500"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Securities Sold During The Past 3 Months regulatory

"Securities Sold During The Past 3 Months ... 3,780 ... 05/28/2026"

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Accepted by SEC EDGAR 05/29/2026 - 06:17 PM Learn about SEC filing dates

FAQ

What does SIBN's Form 144 report?

It reports a proposed sale of 3,500 shares of restricted common stock. The notice identifies the securities as restricted stock and lists the broker information for the transaction.

Who recently sold shares according to the filing for SIBN?

Timothy E. Davis Jr. is listed as selling 3,780 shares on 05/28/2026 for $54,698.87. The entry appears under "Securities Sold During The Past 3 Months."

What broker is handling the proposed SIBN resale?

The broker listed is Morgan Stanley Smith Barney LLC Executive Financial Services at 1 New York Plaza, with NASDAQ routing noted; the excerpt shows broker details tied to the proposed sale.

Are the proceeds or distribution method disclosed in SIBN's excerpt?

The excerpt does not state proceeds treatment or specific distribution methods. It lists the shares, security type as restricted stock, and broker information without detailing proceeds allocation.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	3500	49487.90	44349283	05/29/2026	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	06/09/2023	Restricted Stock	Issuer			3500	06/09/2023	Not Applicable

* 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
TIMOTHY E DAVIS JR 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	05/28/2026	3780	54698.87

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)