DLB (DLB) insider plans Rule 144 sale of 9,109 common shares

Rhea-AI Filing Summary

Mark Andrew Sherman filed a notice under Rule 144 to sell 9,109 shares of DLB common stock. The planned sale, through Morgan Stanley Smith Barney on the NYSE, has an aggregate market value of $607,849.04 and is expected around 12/16/2025. For this class of stock, 60,845,846 shares were reported as outstanding.

The securities to be sold consist of restricted stock and performance shares acquired from the issuer on 12/15/2025. Over the prior three months, Sherman also sold 4,500 common shares on 12/01/2025, generating gross proceeds of $304,035.75.

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	9109	607849.04	60845846	12/16/2025	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	12/15/2025	Restricted Stock	ISSUER			6174	12/15/2025	Not Applicable
Common	12/15/2025	Performance Shares	ISSUER			2935	12/15/2025	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	12/01/2025	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 insider transaction in DLB is disclosed in this Form 144?

The notice states that Mark Andrew Sherman plans to sell 9,109 shares of DLB common stock under Rule 144.

What is the market value of the DLB shares to be sold?

The planned sale covers DLB common stock with an aggregate market value of $607,849.04.

Which broker will handle the planned DLB share sale?

The filing lists Morgan Stanley Smith Barney LLC Executive Financial Services as the broker for the planned sale on the NYSE.

When is the planned sale date for the DLB shares?

The approximate date of sale for the 9,109 DLB common shares is listed as 12/16/2025.

What DLB securities did Mark Andrew Sherman sell in the past three months?

During the prior three months, Mark Andrew Sherman sold 4,500 shares of DLB common stock on 12/01/2025 for gross proceeds of $304,035.75.

How many DLB shares are outstanding for this class of stock?

The filing reports 60,845,846 shares outstanding for the relevant class of DLB common stock.

What types of DLB awards are being sold in this Rule 144 notice?

The securities to be sold include restricted stock and performance shares in DLB common stock, both acquired from the issuer on 12/15/2025.