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DLB

Dolby Laboratories, Inc.

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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
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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
May 17, 2018 Filed May 21, 2018 20:53 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-031925 · doc4.xml · derivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 417,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 17, 2018 Filed May 21, 2018 20:53 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $62.58 $3,129,050.00
Disclosure

SEC source: 0001209191-18-031925 · 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 $62.39 to $63.07, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 17, 2018 Filed May 21, 2018 20:53 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-031925 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 16, 2018 Filed May 17, 2018 20:09 UTC SaleClass A Common Stock 2,000 $63.01 $126,020.40
Disclosure

SEC source: 0001209191-18-031222 · 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: 18,911

F1 · price: This transaction was executed in multiple trades at prices ranging from $62.9997 to $63.06. 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 16, 2018 Filed May 18, 2018 00:06 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-031218 · doc4.xml · derivative · entry 7

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 467,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 16, 2018 Filed May 18, 2018 00:06 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 600 $63.66 $38,196.00
Disclosure

SEC source: 0001209191-18-031218 · doc4.xml · nonDerivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 16, 2018 Filed May 18, 2018 00:06 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 49,400 $63.19 $3,121,694.68
Disclosure

SEC source: 0001209191-18-031218 · doc4.xml · nonDerivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 600

F4 · price: The shares were sold in multiple transactions at prices ranging from $62.64 to $63.63, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 16, 2018 Filed May 18, 2018 00:06 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-031218 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 15, 2018 Filed May 18, 2018 00:06 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-031218 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 517,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 15, 2018 Filed May 18, 2018 00:06 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $62.44 $3,122,240.00
Disclosure

SEC source: 0001209191-18-031218 · 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 $62.155 to $62.67, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 15, 2018 Filed May 18, 2018 00:06 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-031218 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 14, 2018 Filed May 15, 2018 22:00 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-030277 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 567,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 14, 2018 Filed May 15, 2018 22:00 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $62.57 $3,128,280.00
Disclosure

SEC source: 0001209191-18-030277 · 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 $62.08 to $62.935, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 14, 2018 Filed May 15, 2018 22:00 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-030277 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 11, 2018 Filed May 15, 2018 22:00 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-030277 · doc4.xml · derivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 617,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 11, 2018 Filed May 15, 2018 22:00 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $62.74 $3,136,975.00
Disclosure

SEC source: 0001209191-18-030277 · 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 $62.29 to $63.22, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 11, 2018 Filed May 15, 2018 22:00 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-030277 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 10, 2018 Filed May 11, 2018 21:24 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-029638 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 667,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 10, 2018 Filed May 11, 2018 21:24 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $62.41 $3,120,520.00
Disclosure

SEC source: 0001209191-18-029638 · 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 $62 to $62.78, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 10, 2018 Filed May 11, 2018 21:24 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-029638 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 09, 2018 Filed May 11, 2018 21:24 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-029638 · doc4.xml · derivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 717,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 09, 2018 Filed May 11, 2018 21:24 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $62.05 $3,102,405.00
Disclosure

SEC source: 0001209191-18-029638 · 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 $61.80 to $62.64, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 09, 2018 Filed May 11, 2018 21:24 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-029638 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 08, 2018 Filed May 9, 2018 20:47 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028886 · doc4.xml · derivative · entry 7

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 767,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 08, 2018 Filed May 9, 2018 20:47 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $61.75 $3,087,600.00
Disclosure

SEC source: 0001209191-18-028886 · 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 $61.49 to $62.125, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 08, 2018 Filed May 9, 2018 20:47 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028886 · doc4.xml · nonDerivative · entry 4

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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 07, 2018 Filed May 9, 2018 20:47 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028886 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 817,439

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 election 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 election 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 election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 07, 2018 Filed May 9, 2018 20:47 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 2,280 $62.17 $141,737.57
Disclosure

SEC source: 0001209191-18-028886 · doc4.xml · nonDerivative · entry 3

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 $62.13 to $62.20, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 07, 2018 Filed May 9, 2018 20:47 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 47,720 $61.80 $2,949,138.95
Disclosure

SEC source: 0001209191-18-028886 · doc4.xml · nonDerivative · entry 2

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 2,280

F3 · price: The shares were sold in multiple transactions at prices ranging from $61.13 to $62.125, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 07, 2018 Filed May 9, 2018 20:47 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028886 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 04, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028303 · doc4.xml · derivative · entry 8

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 867,439

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.

F7 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the election of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F7 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the election of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F7 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 04, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 18,315 $61.46 $1,125,669.20
Disclosure

SEC source: 0001209191-18-028303 · doc4.xml · nonDerivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 0

F6 · price: The shares were sold in multiple transactions at prices ranging from $61.39 to $61.56, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 04, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 31,685 $61.20 $1,939,245.57
Disclosure

SEC source: 0001209191-18-028303 · doc4.xml · nonDerivative · entry 5

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 18,315

F5 · price: The shares were sold in multiple transactions at prices ranging from $60.39 to $61.385, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 04, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028303 · doc4.xml · nonDerivative · entry 4

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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 03, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028303 · doc4.xml · derivative · entry 7

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 917,439

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.

F7 · derivative.exercise_price: Shares of Class B Common Stock are convertible, at no cost, at any time at the election of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F7 · derivative.exercise_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the election of the holder into shares of Class A Common Stock on a 1-for-1 basis.

F7 · derivative.expiration_date: Shares of Class B Common Stock are convertible, at no cost, at any time at the election 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 03, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 15,087 $61.19 $923,190.13
Disclosure

SEC source: 0001209191-18-028303 · doc4.xml · nonDerivative · entry 3

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 $61.12 to $61.28, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 03, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 34,913 $60.58 $2,115,172.68
Disclosure

SEC source: 0001209191-18-028303 · doc4.xml · nonDerivative · entry 2

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 15,087

F3 · price: The shares were sold in multiple transactions at prices ranging from $60.12 to $61.115, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 03, 2018 Filed May 7, 2018 20:13 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-028303 · 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, and at no cost to, the holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 02, 2018 Filed May 3, 2018 20:45 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027656 · doc4.xml · derivative · entry 7

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 967,439

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 Dagmar Dolby 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 02, 2018 Filed May 3, 2018 20:45 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 16,487 $61.69 $1,017,092.92
Disclosure

SEC source: 0001209191-18-027656 · 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 $61.45 to $62.04, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 02, 2018 Filed May 3, 2018 20:45 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 33,513 $61.26 $2,052,899.14
Disclosure

SEC source: 0001209191-18-027656 · doc4.xml · nonDerivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 16,487

F4 · price: The shares were sold in multiple transactions at prices ranging from $60.45 to $61.44, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

Read SEC document
May 02, 2018 Filed May 3, 2018 20:45 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027656 · 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 holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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May 01, 2018 Filed May 3, 2018 16:46 UTC
YEAMAN KEVIN JDirector · President and CEO
SaleClass A Common Stock 15,000 $59.58 $893,691.00
Disclosure

SEC source: 0001209191-18-027659 · 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: 47,895

F1 · price: This transaction was executed in multiple trades at prices ranging from $59.06 to $59.91. 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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May 01, 2018 Filed May 3, 2018 20:45 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027656 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 1,017,439

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 Dagmar Dolby 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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May 01, 2018 Filed May 3, 2018 20:45 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 50,000 $60.23 $3,011,490.00
Disclosure

SEC source: 0001209191-18-027656 · 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 $60 to $60.61, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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May 01, 2018 Filed May 3, 2018 20:45 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027656 · 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 holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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April 30, 2018 Filed May 1, 2018 23:24 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 38,538 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027202 · doc4.xml · derivative · entry 7

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 1,067,439

Underlying: Class A Common Stock · 38,538 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 Dagmar Dolby 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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April 30, 2018 Filed May 1, 2018 23:24 UTC
Dolby Dagmar10% owner
SaleClass A Common Stock 38,538 $60.14 $2,317,509.61
Disclosure

SEC source: 0001209191-18-027202 · 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 $60 to $60.84, inclusive. The price reported above 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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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April 30, 2018 Filed May 1, 2018 23:24 UTC
Dolby Dagmar10% owner
ConversionClass A Common Stock 38,538 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027202 · doc4.xml · nonDerivative · entry 4

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 38,538

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 holder.

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 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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April 27, 2018 Filed May 1, 2018 23:24 UTC
Dolby Dagmar10% owner
ConversionClass B Common Stock · Derivative 50,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-18-027202 · doc4.xml · derivative · entry 6

Dolby Dagmar · CIK 0001537372 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Trust

Disclosed balance after: 1,105,977

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 Dagmar Dolby 2016 Trust B, dated March 23, 2016 (the "Dagmar Dolby 2016 Trust B"), voting power over which is held by David E. Dolby, son of Dagmar Dolby, as Special Trustee of the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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