Insider trust plans 60,000-share sale at Company (NASDAQ: SIBN) stock

Rhea-AI Filing Summary

SIBN received a notice that an affiliated holder plans to sell common stock under Rule 144. The filing covers a proposed sale of 60,000 common shares, to be executed through Morgan Stanley Smith Barney LLC on or around January 8, 2026 on the NASDAQ market. These 60,000 shares were acquired as restricted stock units from the issuer on October 15, 2021.

Recent trading history in the notice shows that The Jeffrey W. Dunn Living Trust has already sold common shares in the past three months, including 20,000 shares for gross proceeds of 386,594.00 on December 8, 2025, 80,000 shares for 1,516,000.00 on November 11, 2025, and 293 shares for 4,337.51 on November 3, 2025. The planned and recent sales are for the account of that trust, which represents that it is not aware of undisclosed material adverse information about the issuer.

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	60000	1284000.00	43391254	01/08/2026	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	10/15/2021	Restricted Stock Units	Issuer			60000	10/15/2021	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 The Jeffrey W. Dunn Living Trust 471 El Camino Real, Suite 101 Santa Clara CA 95050	COMMON	12/08/2025	20000	386594.00
10b5-1 Sales for The Jeffrey W. Dunn Living Trust 471 El Camino Real, Suite 101 Santa Clara CA 95050	COMMON	11/11/2025	80000	1516000.00
The Jeffrey W. Dunn Living Trust 471 El Camino Real, Suite 101 Santa Clara CA 95050	Common	11/03/2025	293	4337.51

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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)

FAQ

What does the SIBN Form 144 filing disclose about upcoming share sales?

The notice states that an affiliated holder plans to sell 60,000 shares of common stock of SIBN. The sale is expected to occur on or about January 8, 2026 through Morgan Stanley Smith Barney LLC on the NASDAQ exchange.

Who is the selling security holder mentioned in the SIBN Form 144?

The filing identifies The Jeffrey W. Dunn Living Trust as the seller for whose account the securities are to be sold. The trust is the party associated with both the planned Rule 144 sale and the recent sales disclosed for the past three months.

How were the 60,000 SIBN shares to be sold originally acquired?

The 60,000 common shares covered by the planned sale were acquired on October 15, 2021 as restricted stock units from the issuer. The notice lists the issuer as the source of the shares and describes the acquisition transaction as restricted stock units.

What recent SIBN share sales by the same holder are reported in the Form 144?

Over the prior three months, The Jeffrey W. Dunn Living Trust sold SIBN common stock in several transactions: 20,000 shares on December 8, 2025 for gross proceeds of 386,594.00, 80,000 shares on November 11, 2025 for 1,516,000.00, and 293 shares on November 3, 2025 for 4,337.51.

What trading plan information is included in the SIBN Form 144?

The section listing securities sold during the past three months describes two transactions as "10b5-1 Sales for The Jeffrey W. Dunn Living Trust", indicating those specific sales were made pursuant to Rule 10b5-1 trading instructions. The planned 60,000-share Rule 144 sale is listed separately in the securities information section.

What representation does the selling holder make in the SIBN Form 144 notice?

By signing the notice, the person for whose account the securities are to be sold represents that they do not know any material adverse information about the current or prospective operations of the issuer that has not been publicly disclosed, consistent with Rule 144 and, where applicable, Rule 10b5-1 requirements.