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DLB

Dolby Laboratories, Inc.

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Tapewire entity
2518
SEC CIK
0001308547
Parsed reports
525

Last 12 months

Inside the activity.

0 purchase rows · 38 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
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MonthPurchasesSales
Nov 202504
Dec 2025011
Jan 202600
Feb 202603
Mar 202600
Apr 202601
May 202607
Jun 202602
Jul 202601
Aug 202606
Sep 202601
Oct 202602

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
August 08, 2017 Filed Aug 10, 2017 00:09 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-048363 · doc4.xml · nonDerivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 07, 2017 Filed Aug 10, 2017 00:09 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-048363 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 12,376,194

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 07, 2017 Filed Aug 10, 2017 00:09 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 100 $51.95 $5,195.00
Disclosure

SEC source: 0001209191-17-048363 · doc4.xml · nonDerivative · entry 3

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 07, 2017 Filed Aug 10, 2017 00:09 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 49,900 $51.25 $2,557,574.60
Disclosure

SEC source: 0001209191-17-048363 · doc4.xml · nonDerivative · entry 2

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 100

F3 · price: The shares were sold in multiple transactions at prices ranging from $50.95 to $51.76, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 07, 2017 Filed Aug 10, 2017 00:09 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-048363 · doc4.xml · nonDerivative · entry 1

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 04, 2017 Filed Aug 7, 2017 21:06 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-047924 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 12,426,194

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 04, 2017 Filed Aug 7, 2017 21:06 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $50.91 $2,545,300.00
Disclosure

SEC source: 0001209191-17-047924 · doc4.xml · nonDerivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F4 · price: The shares were sold in multiple transactions at prices ranging from $50.72 to $51.53, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 04, 2017 Filed Aug 7, 2017 21:06 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-047924 · doc4.xml · nonDerivative · entry 3

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 03, 2017 Filed Aug 7, 2017 21:06 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-047924 · doc4.xml · derivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 12,476,194

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 03, 2017 Filed Aug 7, 2017 21:06 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $51.36 $2,568,090.00
Disclosure

SEC source: 0001209191-17-047924 · doc4.xml · nonDerivative · entry 2

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · price: The shares were sold in multiple transactions at prices ranging from $51.12 to $51.59, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 03, 2017 Filed Aug 7, 2017 21:06 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-047924 · doc4.xml · nonDerivative · entry 1

Dolby Dagmar · CIK 0001537372 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
August 02, 2017 Filed Aug 3, 2017 18:42 UTC
YEAMAN KEVIN JDirector · President and CEO
SaleClass A Common Stock 10,000 $51.79 $517,883.00
Disclosure

SEC source: 0001209191-17-047517 · doc4.xml · nonDerivative · entry 1

YEAMAN KEVIN J · CIK 0001200469 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009

Disclosed balance after: 87,895

F1 · price: This transaction was executed in multiple trades at prices ranging from $51.37 to $52.30. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

Read SEC document
August 02, 2017 Filed Aug 3, 2017 20:05 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-047295 · doc4.xml · derivative · entry 7

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 463,262

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F6 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F6 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
August 02, 2017 Filed Aug 3, 2017 20:05 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 300 $52.54 $15,762.00
Disclosure

SEC source: 0001209191-17-047295 · doc4.xml · nonDerivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F5 · price: The shares were sold in multiple transactions at prices ranging from $52.36 to $52.63, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
August 02, 2017 Filed Aug 3, 2017 20:05 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 49,700 $51.79 $2,573,873.54
Disclosure

SEC source: 0001209191-17-047295 · doc4.xml · nonDerivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 300

F4 · price: The shares were sold in multiple transactions at prices ranging from $51.36 to $52.34, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
August 02, 2017 Filed Aug 3, 2017 20:05 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-047295 · doc4.xml · nonDerivative · entry 3

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
August 01, 2017 Filed Aug 3, 2017 20:05 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $52.27 $2,613,650.00
Disclosure

SEC source: 0001209191-17-047295 · doc4.xml · nonDerivative · entry 2

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · price: The shares were sold in multiple transactions at prices ranging from $51.80 to $52.48, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
August 01, 2017 Filed Aug 3, 2017 20:05 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-047295 · doc4.xml · nonDerivative · entry 1

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
July 31, 2017 Filed Aug 1, 2017 20:25 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-046916 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 563,262

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
July 31, 2017 Filed Aug 1, 2017 20:25 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $52.00 $2,600,130.00
Disclosure

SEC source: 0001209191-17-046916 · doc4.xml · nonDerivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F4 · price: The shares were sold in multiple transactions at prices ranging from $51.75 to $52.71, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
July 31, 2017 Filed Aug 1, 2017 20:25 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-046916 · doc4.xml · nonDerivative · entry 3

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
July 28, 2017 Filed Aug 1, 2017 20:25 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-046916 · doc4.xml · derivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 613,262

Underlying: Class A Common Stock · 50,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
July 28, 2017 Filed Aug 1, 2017 20:25 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $52.45 $2,622,295.00
Disclosure

SEC source: 0001209191-17-046916 · doc4.xml · nonDerivative · entry 2

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F3 · price: The shares were sold in multiple transactions at prices ranging from $52.16 to $52.785, inclusive. The price reported reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
July 28, 2017 Filed Aug 1, 2017 20:25 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-046916 · doc4.xml · nonDerivative · entry 1

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 50,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · security: Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the reporting person.

F2 · ownership.nature: Reflects shares of Class B Common Stock (as converted or convertible, as applicable, into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Ray Dolby 2002 Trust B, dated April 19, 2002 (the "Ray Dolby 2002 Trust B"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2002 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 25, 2017 Filed May 26, 2017 16:19 UTC
Dolby Dagmar10% owner
GiftClass B Common Stock · Derivative 390,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-035814 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

Dagmar Dolby 2016 Trust BB, dated March 23, 2016 · CIK 0001670400 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 · CIK 0001598817 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 12,526,194

Underlying: Class A Common Stock · 390,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F7 · kind: On May 25, 2017, the Marital Trust (as defined below) transferred 390,000 shares of Class B Common Stock to the Dagmar Dolby Trust. Such share transfer was effected solely for tax and estate planning purposes and for no value, and no reporting person paid or received any funds or other consideration in exchange for such share transfer.

F1 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F1 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F4 · ownership.nature: Reflects shares of Class B Common Stock (convertible into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
May 25, 2017 Filed May 26, 2017 16:19 UTC
Dolby Dagmar10% owner
GiftClass B Common Stock · Derivative 390,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-035814 · doc4.xml · derivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

Dagmar Dolby 2016 Trust BB, dated March 23, 2016 · CIK 0001670400 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 · CIK 0001598817 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 24,932,162

Underlying: Class A Common Stock · 390,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F7 · kind: On May 25, 2017, the Marital Trust (as defined below) transferred 390,000 shares of Class B Common Stock to the Dagmar Dolby Trust. Such share transfer was effected solely for tax and estate planning purposes and for no value, and no reporting person paid or received any funds or other consideration in exchange for such share transfer.

F1 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F1 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F8 · ownership.nature: Reflects shares of Class B Common Stock (convertible into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Marital Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Marital Trust"), voting power of which is shared by the Trustee and David E. Dolby as Special Trustee of the Marital Trust. This report is filed jointly by Dagmar Dolby and the Marital Trust with respect to the securities held and transactions effected by the Marital Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
May 25, 2017 Filed May 26, 2017 16:19 UTC
Dolby Dagmar10% owner
GiftClass B Common Stock · Derivative 1,937,600 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-035814 · doc4.xml · derivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

Dagmar Dolby 2016 Trust BB, dated March 23, 2016 · CIK 0001670400 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 · CIK 0001598817 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 1,937,600

Underlying: Class A Common Stock · 1,937,600 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · kind: On May 25, 2017, the Dagmar Dolby Trust contributed 1,937,600 shares of Class B Common Stock to a newly formed GRAT, the Dagmar Dolby 2017 Trust BB (as defined below). The establishment of such GRAT and such share contribution were effected solely for tax and estate planning purposes and for no value, and no reporting person paid or received any funds or other consideration in exchange for such transactions. Applicable rules consider such transactions to be exempt from the reporting requirements of Section 16(a) and the provisions of Section 16(b) of the Exchange Act, and as a result the reporting persons are voluntarily reporting such transactions on this Form 4.

F1 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F1 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F6 · ownership.nature: Reflects shares of Class B Common Stock (convertible into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby 2017 Trust BB, dated May 25, 2017 (the "Dagmar Dolby 2017 Trust BB"), voting power of which is held by David E. Dolby as Special Trustee of the Dagmar Dolby 2017 Trust BB. This report is filed by Dagmar Dolby with respect to the securities held and transactions effected by the Dagmar Dolby 2017 Trust BB. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 25, 2017 Filed May 26, 2017 16:19 UTC
Dolby Dagmar10% owner
GiftClass B Common Stock · Derivative 1,937,600 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-035814 · doc4.xml · derivative · entry 3

Dolby Dagmar · CIK 0001537372 · 10% owner

Dagmar Dolby 2016 Trust BB, dated March 23, 2016 · CIK 0001670400 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 · CIK 0001598817 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 12,136,194

Underlying: Class A Common Stock · 1,937,600 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F5 · kind: On May 25, 2017, the Dagmar Dolby Trust contributed 1,937,600 shares of Class B Common Stock to a newly formed GRAT, the Dagmar Dolby 2017 Trust BB (as defined below). The establishment of such GRAT and such share contribution were effected solely for tax and estate planning purposes and for no value, and no reporting person paid or received any funds or other consideration in exchange for such transactions. Applicable rules consider such transactions to be exempt from the reporting requirements of Section 16(a) and the provisions of Section 16(b) of the Exchange Act, and as a result the reporting persons are voluntarily reporting such transactions on this Form 4.

F1 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F1 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F4 · ownership.nature: Reflects shares of Class B Common Stock (convertible into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
May 25, 2017 Filed May 26, 2017 16:19 UTC
Dolby Dagmar10% owner
GiftClass B Common Stock · Derivative 1,937,600 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-035814 · doc4.xml · derivative · entry 2

Dolby Dagmar · CIK 0001537372 · 10% owner

Dagmar Dolby 2016 Trust BB, dated March 23, 2016 · CIK 0001670400 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 · CIK 0001598817 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 14,073,794

Underlying: Class A Common Stock · 1,937,600 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · kind: On May 25, 2017, the Dagmar Dolby 2016 Trust BB transferred 1,937,600 shares of Class B Common Stock to the Dagmar Dolby Trust (each such trust as defined below). The Dagmar Dolby 2016 Trust BB is a grantor retained annuity trust ("GRAT") whose trust instrument requires an annual annuity payment to the Dagmar Dolby Trust, and such share transfer was made in satisfaction of this annuity payment requirement and pursuant to the terms of the trust instrument of the Dagmar Dolby 2016 Trust BB. No reporting person paid or received any funds or other consideration in exchange for such share transfer. Applicable rules consider such a share transfer to be exempt from the reporting requirements of Section 16(a) and the provisions of Section 16(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and as a result the reporting persons are voluntarily reporting such share transfer on this Form 4.

F1 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F1 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F4 · ownership.nature: Reflects shares of Class B Common Stock (convertible into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby Trust under the Dolby Family Trust instrument, dated May 7, 1999 (the "Dagmar Dolby Trust"), voting power of which is shared by the Trustee and David E. Dolby as Special Trustee of the Dagmar Dolby Trust. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby Trust with respect to the securities held and transactions effected by the Dagmar Dolby Trust. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
May 25, 2017 Filed May 26, 2017 16:19 UTC
Dolby Dagmar10% owner
GiftClass B Common Stock · Derivative 1,937,600 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-035814 · doc4.xml · derivative · entry 1

Dolby Dagmar · CIK 0001537372 · 10% owner

Dagmar Dolby 2016 Trust BB, dated March 23, 2016 · CIK 0001670400 · 10% owner

DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 · CIK 0001598813 · 10% owner

MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 · CIK 0001598817 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 2,712,400

Underlying: Class A Common Stock · 1,937,600 shares

Expires not disclosed

F1 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F2 · kind: On May 25, 2017, the Dagmar Dolby 2016 Trust BB transferred 1,937,600 shares of Class B Common Stock to the Dagmar Dolby Trust (each such trust as defined below). The Dagmar Dolby 2016 Trust BB is a grantor retained annuity trust ("GRAT") whose trust instrument requires an annual annuity payment to the Dagmar Dolby Trust, and such share transfer was made in satisfaction of this annuity payment requirement and pursuant to the terms of the trust instrument of the Dagmar Dolby 2016 Trust BB. No reporting person paid or received any funds or other consideration in exchange for such share transfer. Applicable rules consider such a share transfer to be exempt from the reporting requirements of Section 16(a) and the provisions of Section 16(b) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and as a result the reporting persons are voluntarily reporting such share transfer on this Form 4.

F1 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F1 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the option of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F3 · ownership.nature: Reflects shares of Class B Common Stock (convertible into a like number of shares of Class A Common Stock) held of record by Dagmar Dolby as the Trustee of the Dagmar Dolby 2016 Trust BB, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust BB"), voting power of which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust BB. This report is filed jointly by Dagmar Dolby and the Dagmar Dolby 2016 Trust BB with respect to the securities held and transactions effected by the Dagmar Dolby 2016 Trust BB; however, as a result of and following the transaction described in footnote 2, the Dagmar Dolby 2016 Trust BB is no longer a reporting person under Section 16(a) of the Exchange Act. The reporting persons disclaim beneficial ownership of these securities except to the extent of their respective pecuniary interest therein.

Read SEC document
May 17, 2017 Filed May 17, 2017 23:44 UTC
CHEW LEWISEVP & Chief Financial Officer
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 14,300 $0.00 Strike: $30.49 $0.00
Disclosure

SEC source: 0001209191-17-033440 · doc4.xml · derivative · entry 3

CHEW LEWIS · CIK 0001224994 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,400

Underlying: Class A Common Stock · 14,300 shares

Expires 2022-12-21

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: This option was granted for a total of 98,700 shares of Class A Common Stock. 1/4 of the total number of shares issuable under the option vested on the first anniversary of December 21, 2012, the vesting commencement date, and the balance of the shares vested in equal monthly installments over the next 36 months thereafter.

Read SEC document
May 17, 2017 Filed May 17, 2017 23:44 UTC
CHEW LEWISEVP & Chief Financial Officer
SaleClass A Common Stock 14,300 $50.34 $719,856.28
Disclosure

SEC source: 0001209191-17-033440 · doc4.xml · nonDerivative · entry 2

CHEW LEWIS · CIK 0001224994 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,899

F2 · price: This transaction was executed in multiple trades at prices ranging from $50.25 to $50.42. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F1 · balance_after: Shares held following the reported transactions include 38,879 restricted stock units, which are subject to forfeiture until they vest.

Read SEC document
May 17, 2017 Filed May 17, 2017 23:44 UTC
CHEW LEWISEVP & Chief Financial Officer
Exercise / conversionClass A Common Stock 14,300 $30.49 $436,007.00
Disclosure

SEC source: 0001209191-17-033440 · doc4.xml · nonDerivative · entry 1

CHEW LEWIS · CIK 0001224994 · EVP & Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 95,199

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Shares held following the reported transactions include 38,879 restricted stock units, which are subject to forfeiture until they vest.

Read SEC document
May 12, 2017 Filed May 16, 2017 21:22 UTC
Borchers BobSVP & Chief Marketing Officer
GiftClass A Common Stock 1,555 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-032809 · doc4.xml · nonDerivative · entry 2

Borchers Bob · CIK 0001596051 · SVP & Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,575

F3 · kind: Gift to a charitable and/or non-profit organization.

F2 · balance_after: Shares held following the reported transactions include 40,748 shares of Class A common stock underlying restricted stock units, which are subject to forfeiture until they vest.

Read SEC document
May 12, 2017 Filed May 16, 2017 21:22 UTC
Borchers BobSVP & Chief Marketing Officer
SaleClass A Common Stock 11,666 $51.38 $599,350.08
Disclosure

SEC source: 0001209191-17-032809 · doc4.xml · nonDerivative · entry 1

Borchers Bob · CIK 0001596051 · SVP & Chief Marketing Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,130

F1 · price: This transaction was executed in multiple trades at prices ranging from $51.33 to $51.60. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

F2 · balance_after: Shares held following the reported transactions include 40,748 shares of Class A common stock underlying restricted stock units, which are subject to forfeiture until they vest.

Read SEC document
May 08, 2017 Filed May 9, 2017 19:17 UTC SaleClass A Common Stock 2,000 $51.75 $103,500.00
Disclosure

SEC source: 0001209191-17-031091 · doc4.xml · nonDerivative · entry 1

DONATIELLO NICHOLAS JR · CIK 0001269691 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · By Nicholas Donatiello, Jr. Trustee of the Nicholas Donatiello, Jr. Trust u/a/d April 22, 2011

Disclosed balance after: 18,295

F1 · price: This transaction was executed in multiple trades at prices ranging from $51.744 to $51.76. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

Read SEC document
May 02, 2017 Filed May 3, 2017 16:36 UTC
YEAMAN KEVIN JDirector · President and CEO
SaleClass A Common Stock 10,000 $51.33 $513,326.00
Disclosure

SEC source: 0001209191-17-029686 · doc4.xml · nonDerivative · entry 1

YEAMAN KEVIN J · CIK 0001200469 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009

Disclosed balance after: 97,895

F1 · price: This transaction was executed in multiple trades at prices ranging from $51.09 to $51.57. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

Read SEC document
March 29, 2017 Filed Mar 31, 2017 16:52 UTC
SHERMAN MARK ANDREWEVP, GEN. COUN. & SECRTY
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 6,000 $0.00 Strike: $28.24 $0.00
Disclosure

SEC source: 0001209191-17-023887 · doc4.xml · derivative · entry 3

SHERMAN MARK ANDREW · CIK 0001256708 · EVP, GEN. COUN. & SECRTY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,219

Underlying: Class A Common Stock · 6,000 shares

Expires 2021-12-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: This option was granted for a total of 94,219 shares of Class A Common Stock. 1/4 of the total number of shares issuable under the option vested on the first anniversary of December 15, 2011, the vesting commencement date, and the balance of the shares vested in equal monthly installments over the next 36 months thereafter.

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March 29, 2017 Filed Mar 31, 2017 16:52 UTC
SHERMAN MARK ANDREWEVP, GEN. COUN. & SECRTY
SaleClass A Common Stock 6,000 $52.50 $315,000.00
Disclosure

SEC source: 0001209191-17-023887 · doc4.xml · nonDerivative · entry 2

SHERMAN MARK ANDREW · CIK 0001256708 · EVP, GEN. COUN. & SECRTY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,935

F1 · balance_after: Shares held following the reported transactions include 31,861 restricted stock units, which are subject to forfeiture until they vest.

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March 29, 2017 Filed Mar 31, 2017 16:52 UTC
SHERMAN MARK ANDREWEVP, GEN. COUN. & SECRTY
Exercise / conversionClass A Common Stock 6,000 $28.24 $169,440.00
Disclosure

SEC source: 0001209191-17-023887 · doc4.xml · nonDerivative · entry 1

SHERMAN MARK ANDREW · CIK 0001256708 · EVP, GEN. COUN. & SECRTY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,935

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Shares held following the reported transactions include 31,861 restricted stock units, which are subject to forfeiture until they vest.

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March 29, 2017 Filed Mar 31, 2017 16:54 UTC
YEAMAN KEVIN JDirector · President and CEO
SaleClass A Common Stock 10,000 $52.51 $525,057.00
Disclosure

SEC source: 0001209191-17-023889 · doc4.xml · nonDerivative · entry 1

YEAMAN KEVIN J · CIK 0001200469 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009

Disclosed balance after: 107,895

F1 · price: This transaction was executed in multiple trades at prices ranging from $52.50 to $52.52. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

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March 01, 2017 Filed Mar 2, 2017 20:42 UTC
YEAMAN KEVIN JDirector · President and CEO
SaleClass A Common Stock 5,000 $50.00 $250,024.00
Disclosure

SEC source: 0001209191-17-017011 · doc4.xml · nonDerivative · entry 1

YEAMAN KEVIN J · CIK 0001200469 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Indirect · By the Kevin and Rachel Yeaman Family Trust dated May 14, 2009

Disclosed balance after: 117,895

F1 · price: This transaction was executed in multiple trades at prices ranging from $50 to $50.015. The price reported above reflects the weighted average price. The reporting person hereby undertakes to provide upon request to the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected.

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March 01, 2017 Filed Mar 2, 2017 20:45 UTC
SHERMAN MARK ANDREWEVP, GEN. COUN. & SECRTY
Exercise / conversionEmployee Stock Option (right to buy) · Derivative 6,000 $0.00 Strike: $28.24 $0.00
Disclosure

SEC source: 0001209191-17-017015 · doc4.xml · derivative · entry 3

SHERMAN MARK ANDREW · CIK 0001256708 · EVP, GEN. COUN. & SECRTY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,219

Underlying: Class A Common Stock · 6,000 shares

Expires 2021-12-15

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: This option was granted for a total of 94,219 shares of Class A Common Stock. 1/4 of the total number of shares issuable under the option vested on the first anniversary of December 15, 2011, the vesting commencement date, and the balance of the shares vested in equal monthly installments over the next 36 months thereafter.

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March 01, 2017 Filed Mar 2, 2017 20:45 UTC
SHERMAN MARK ANDREWEVP, GEN. COUN. & SECRTY
SaleClass A Common Stock 6,000 $50.00 $300,000.00
Disclosure

SEC source: 0001209191-17-017015 · doc4.xml · nonDerivative · entry 2

SHERMAN MARK ANDREW · CIK 0001256708 · EVP, GEN. COUN. & SECRTY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,935

F1 · balance_after: Shares held following the reported transactions include 31,861 restricted stock units, which are subject to forfeiture until they vest.

Read SEC document
March 01, 2017 Filed Mar 2, 2017 20:45 UTC
SHERMAN MARK ANDREWEVP, GEN. COUN. & SECRTY
Exercise / conversionClass A Common Stock 6,000 $28.24 $169,440.00
Disclosure

SEC source: 0001209191-17-017015 · doc4.xml · nonDerivative · entry 1

SHERMAN MARK ANDREW · CIK 0001256708 · EVP, GEN. COUN. & SECRTY

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,935

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Shares held following the reported transactions include 31,861 restricted stock units, which are subject to forfeiture until they vest.

Read SEC document
February 17, 2017 Filed Feb 22, 2017 00:55 UTC
Forshay Steven ESVP, Advanced Technology Group
Tax withholdingClass A Common Stock 443 $49.45 $21,906.35
Disclosure

SEC source: 0001209191-17-012971 · doc4.xml · nonDerivative · entry 1

Forshay Steven E · CIK 0001315522 · SVP, Advanced Technology Group

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,330.826

F1 · kind: In accordance with Rule 16b-3, shares reported as disposed of were withheld by the Issuer and not issued to the reporting person in order to cover withholding taxes incident to the vesting of restricted stock units.

F2 · balance_after: Shares held following the reported transactions include 25,719 restricted stock units, which are subject to forfeiture until they vest.

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February 07, 2017 Filed Feb 9, 2017 16:46 UTC GrantClass A Common Stock 5,233 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-009117 · doc4.xml · nonDerivative · entry 1

GOTCHER PETER C · CIK 0000935901 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,526

F1 · acquired: Award represents a total of 5,233 restricted stock units granted under the terms of the Issuer's 2005 Stock Plan. Each unit represents a contingent right to receive one share of the Issuer's Class A Common Stock upon vesting, which will occur on the earlier of (i) the first anniversary of the date of grant or (ii) the date immediately preceding the date of Issuer's 2018 annual meeting of stockholders, provided that, in either case, the Reporting Person continues to serve as a member of the Issuer's board of directors on such date.

F2 · balance_after: Shares held following the reported transactions include 5,233 restricted stock units, which are subject to forfeiture until they vest.

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February 07, 2017 Filed Feb 9, 2017 17:26 UTC GrantClass A Common Stock 5,233 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-009154 · doc4.xml · nonDerivative · entry 1

SIBONI ROGER S · CIK 0001105624 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,567

F1 · acquired: Award represents a total of 5,233 restricted stock units granted under the terms of the Issuer's 2005 Stock Plan. Each unit represents a contingent right to receive one share of the Issuer's Class A Common Stock upon vesting, which will occur on the earlier of (i) the first anniversary of the date of grant or (ii) the date immediately preceding the date of Issuer's 2018 annual meeting of stockholders, provided that, in either case, the Reporting Person continues to serve as a member of the Issuer's board of directors on such date.

F2 · balance_after: Shares held following the reported transactions include 5,233 restricted stock units, which are subject to forfeiture until they vest.

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February 07, 2017 Filed Feb 9, 2017 17:24 UTC
Segars SimonDirector
GrantClass A Common Stock 5,233 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-009149 · doc4.xml · nonDerivative · entry 1

Segars Simon · CIK 0001632353 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,567

F1 · acquired: Award represents a total of 5,233 restricted stock units granted under the terms of the Issuer's 2005 Stock Plan. Each unit represents a contingent right to receive one share of the Issuer's Class A Common Stock upon vesting, which will occur on the earlier of (i) the first anniversary of the date of grant or (ii) the date immediately preceding the date of Issuer's 2018 annual meeting of stockholders, provided that, in either case, the Reporting Person continues to serve as a member of the Issuer's board of directors on such date.

F2 · balance_after: Shares held following the reported transactions include 5,233 restricted stock units, which are subject to forfeiture until they vest.

Read SEC document
February 07, 2017 Filed Feb 9, 2017 16:40 UTC GrantClass A Common Stock 5,233 $0.00 $0.00
Disclosure

SEC source: 0001209191-17-009105 · doc4.xml · nonDerivative · entry 1

Chau Micheline · CIK 0001448102 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,599

F1 · acquired: Award represents a total of 5,233 restricted stock units granted under the terms of the Issuer's 2005 Stock Plan. Each unit represents a contingent right to receive one share of the Issuer's Class A Common Stock upon vesting, which will occur on the earlier of (i) the first anniversary of the date of grant or (ii) the date immediately preceding the date of Issuer's 2018 annual meeting of stockholders, provided that, in either case, the Reporting Person continues to serve as a member of the Issuer's board of directors on such date.

F2 · balance_after: Shares held following the reported transactions include 5,233 restricted stock units, which are subject to forfeiture until they vest.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.