DLB (DLB) investor details Rule 144 sale of 2,491 common shares

Rhea-AI Filing Summary

A notice under Rule 144 shows that shareholder Mark Andrew Sherman plans to sell 2,491 DLB common shares through Morgan Stanley Smith Barney on the NYSE. The planned sale has an aggregate market value of $167,553.88, with an approximate sale date of December 17, 2025. The issuer lists 60,845,846 common shares outstanding.

The 2,491 shares to be sold were acquired as restricted stock from the issuer on December 16, 2025. The notice also reports that Mark Andrew Sherman sold 9,109 common shares on December 16, 2025 for $607,849.03 and 4,500 shares on December 1, 2025 for $304,035.75. By signing, the seller represents that he is not aware of any material adverse information about the issuer’s operations that has not been publicly disclosed.

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	2491	167553.88	60845846	12/17/2025	NYSE

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	12/16/2025	Restricted Stock	ISSUER			2491	12/16/2025	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
MARK ANDREW SHERMAN 1275 Market Street San Francisco CA 94103-1410	Common	12/16/2025	9109	607849.03
MARK ANDREW SHERMAN 1275 Market Street San Francisco CA 94103-1410	Common	12/01/2025	4500	304035.75

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 DLB Rule 144 notice disclose?

The notice shows that Mark Andrew Sherman plans to sell 2,491 DLB common shares through Morgan Stanley Smith Barney on the NYSE, with an aggregate market value of $167,553.88 and an approximate sale date of December 17, 2025.

How many DLB shares does Mark Andrew Sherman plan to sell and when?

He plans to sell 2,491 DLB common shares, with an approximate sale date listed as December 17, 2025.

How were the DLB shares in the planned sale acquired?

The 2,491 shares in the planned sale were acquired as restricted stock from the issuer on December 16, 2025, with the notice describing the nature of payment as Not Applicable.

What recent DLB stock sales by Mark Andrew Sherman are reported?

The notice reports that Mark Andrew Sherman sold 9,109 common shares on December 16, 2025 for $607,849.03 and 4,500 common shares on December 1, 2025 for $304,035.75.

How many DLB common shares are outstanding according to the notice?

The notice lists 60,845,846 DLB common shares outstanding in connection with the planned sale.

What representation does the seller make about material information on DLB?

By signing, the seller represents that he does not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.