Dolby exec plans $468K stock sale after option exercise

Dolby Laboratories, Inc. (DLB) received a notice under Rule 144 that officer John Couling plans to sell common stock.

Rhea-AI Filing Summary

Dolby Laboratories, Inc. (DLB) received a notice under Rule 144 that officer John Couling plans to sell common stock. The notice covers 7,667 shares to be sold through Morgan Stanley Smith Barney LLC on or about September 1, 2026, following a stock option exercise. The filing reports an aggregate market value of about $468,032.02 for these shares and notes 59,416,894 shares of the same class outstanding. Couling also reported prior Rule 144 sales of 7,667 shares each on July 1, 2026 and August 3, 2026.

Key Figures

Shares to be sold: 7,667 shares Aggregate market value: $468,032.02 Shares outstanding: 59,416,894 shares +3 more

6 metrics

Shares to be sold 7,667 shares Common stock covered by the new Rule 144 notice

Aggregate market value $468,032.02 Aggregate market value of 7,667 shares proposed for sale

Shares outstanding 59,416,894 shares Common shares of the same class outstanding as referenced in the notice

Prior sale July 1, 2026 7,667 shares; $407,894.37 Common shares sold and gross proceeds during past three months

Prior sale August 3, 2026 7,667 shares; $460,003.90 Common shares sold and gross proceeds during past three months

Planned sale date September 1, 2026 Approximate date of sale for the current Form 144 notice

Key Terms

Rule 144, Stock Option Exercise, Gross Proceeds, Executive Financial Services

4 terms

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.

Stock Option Exercise financial

"Common | 09/01/2026 | Stock Option Exercise | ISSUER"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Gross Proceeds financial

"Common | 08/03/2026 | 7667 | 460003.90"

The total amount of cash a company receives from a financing event or sale before any fees, expenses, taxes or deductions are taken out. Investors watch gross proceeds because it shows the raw scale of new capital being raised—think of it as the paycheck amount before withholdings—which helps assess how much funding is available for operations, growth, debt payoff or how much shareholder dilution might occur once costs are removed.

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing indicate for Dolby Laboratories (DLB)?

The Form 144 indicates that officer John Couling has notified of a proposed sale of 7,667 Dolby common shares under Rule 144, expected around September 1, 2026, following a stock option exercise, through Morgan Stanley Smith Barney LLC.

How many Dolby (DLB) shares are covered by the new Rule 144 notice?

The notice covers 7,667 shares of Dolby Laboratories common stock. The filing lists these shares with an aggregate market value of about $468,032.02 and references 59,416,894 shares of the same class outstanding.

What prior Dolby (DLB) share sales by John Couling are disclosed?

The filing lists two prior sales by John Couling in the past three months: 7,667 shares on July 1, 2026 with gross proceeds of $407,894.37, and 7,667 shares on August 3, 2026 with gross proceeds of $460,003.90.

What is the aggregate market value of the Dolby (DLB) shares proposed to be sold?

The proposed sale of 7,667 shares of Dolby Laboratories common stock is reported with an aggregate market value of $468,032.02, as of the information provided in the notice.

How many Dolby (DLB) shares are outstanding according to this Form 144?

The Form 144 references 59,416,894 shares of Dolby Laboratories common stock outstanding for the same class of securities as those covered by the planned Rule 144 sale.

What is the nature of the Dolby (DLB) shares being sold by John Couling?

The Dolby common shares in the planned sale arise from a stock option exercise by John Couling, with the securities to be sold for cash through Morgan Stanley Smith Barney LLC Executive Financial Services on or about September 1, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/01/2026 - 04:18 PM EDT Accepted by SEC EDGAR 09/01/2026 - 04:18 PM EDT Learn about SEC filing dates

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	0001894052
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	DOLBY LABORATORIES, INC.
SEC File Number	001-32431
Address of Issuer	1275 Market Street San Francisco CALIFORNIA 94103-1410
Phone	(415) 558-0200
Name of Person for Whose Account the Securities are To Be Sold	JOHN COULING
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	Officer

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	7667	468032.02	59416894	09/01/2026	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	09/01/2026	Stock Option Exercise	ISSUER			7667	09/01/2026	Cash

* 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
JOHN COULING 1275 Market Street San Francisco CA 94103-1410	Common	08/03/2026	7667	460003.90
JOHN COULING 1275 Market Street San Francisco CA 94103-1410	Common	07/01/2026	7667	407894.37

144: Remarks and Signature

Remarks
Date of Notice	09/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/03/2026
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	/s/ John David Couling
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)