{"transactions":[{"id":4628769,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2026-10-02T22:42:54.000Z","date":"2026-10-02","kind":"gift","planned":false,"acquired":true,"shares":24108162,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By a trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On October 2, 2026, the Marital Trust (as defined below) transferred 24,108,162 shares of Class B Common Stock to the Dagmar Dolby Trust (as defined below). Such share transfer was effected solely for tax and estate planning purposes, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor. As a change in form of indirect beneficial ownership only, the share transfer would be exempt from the reporting requirements of Section 16(a) and the provisions of Section 16(b) of the Act. The reporting persons are voluntarily reporting the share transfer on this Form 4."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Reflects shares 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 person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."}],"balance_after":28480279,"derivative":{"underlying":"Class A Common Stock","underlying_shares":24108162},"source":{"system":"sec-edgar","filing":"0001193125-26-412706","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1598817/000119312526412706/ownership.xml","form_type":"4"}},{"id":4628768,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2026-10-02T22:42:54.000Z","date":"2026-10-02","kind":"gift","planned":false,"acquired":false,"shares":24108162,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By a trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On October 2, 2026, the Marital Trust (as defined below) transferred 24,108,162 shares of Class B Common Stock to the Dagmar Dolby Trust (as defined below). Such share transfer was effected solely for tax and estate planning purposes, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor. As a change in form of indirect beneficial ownership only, the share transfer would be exempt from the reporting requirements of Section 16(a) and the provisions of Section 16(b) of the Act. The reporting persons are voluntarily reporting the share transfer on this Form 4."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Reflects shares of Class B 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 Dagmar Dolby Trust.The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":24108162},"source":{"system":"sec-edgar","filing":"0001193125-26-412706","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1598817/000119312526412706/ownership.xml","form_type":"4"}},{"id":3979506,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":true,"shares":350000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By LLC"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F11","text":"On March 28, 2018, the Dagmar Dolby Trust contributed 350,000 shares of Class B Common Stock to Dolby Holdings III (as defined below), a newly formed family limited liability company. Such share contribution was effected solely for tax and estate planning and investment management purposes, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F12","text":"Reflects shares of Class B Common Stock (convertible into a like number of shares of Class A Common Stock) held of record by Dolby Holdings III LLC, a limited liability company (\"Dolby Holdings III\"), investment and voting power over which is held by Dagmar Dolby, manager of Dolby Holdings III. This report is filed by Dagmar Dolby with respect to the securities held and transactions effected by Dolby Holdings III. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."}],"balance_after":350000,"derivative":{"underlying":"Class A Common Stock","underlying_shares":350000},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979505,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":false,"shares":350000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F11","text":"On March 28, 2018, the Dagmar Dolby Trust contributed 350,000 shares of Class B Common Stock to Dolby Holdings III (as defined below), a newly formed family limited liability company. Such share contribution was effected solely for tax and estate planning and investment management purposes, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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 over 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."}],"balance_after":12416617,"derivative":{"underlying":"Class A Common Stock","underlying_shares":350000},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979504,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":true,"shares":824000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F9","text":"On March 28, 2018, the Marital Trust (as defined below) transferred 824,000 shares of Class B Common Stock to the Dagmar Dolby Trust. Such share transfer was effected solely for tax and estate planning purposes, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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 over 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."}],"balance_after":12766617,"derivative":{"underlying":"Class A Common Stock","underlying_shares":824000},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979503,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":false,"shares":824000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F9","text":"On March 28, 2018, the Marital Trust (as defined below) transferred 824,000 shares of Class B Common Stock to the Dagmar Dolby Trust. Such share transfer was effected solely for tax and estate planning purposes, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F10","text":"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 over 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."}],"balance_after":24108162,"derivative":{"underlying":"Class A Common Stock","underlying_shares":824000},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979502,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":true,"shares":1155977,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F7","text":"On March 28, 2018, following the annuity payment described in footnote (5) above, the Dagmar Dolby 2016 Trust BB distributed all remaining shares of Class B Common Stock it held, totaling 1,155,977 shares, to the Dagmar Dolby 2016 Trust B (as defined below). Such distribution was effected in satisfaction of the distribution requirements, and in accordance with the terms, of the Dagmar Dolby 2016 Trust BB's trust instrument, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F8","text":"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 B, dated March 23, 2016 (the \"Dagmar Dolby 2016 Trust B\"), voting power over which is held by David E. Dolby as Special Trustee of the Dagmar Dolby 2016 Trust B. This report is filed by Dagmar Dolby with respect to the securities held and transactions effected by the Dagmar Dolby 2016 Trust B. The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."}],"balance_after":1155977,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1155977},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979501,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":false,"shares":1155977,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F7","text":"On March 28, 2018, following the annuity payment described in footnote (5) above, the Dagmar Dolby 2016 Trust BB distributed all remaining shares of Class B Common Stock it held, totaling 1,155,977 shares, to the Dagmar Dolby 2016 Trust B (as defined below). Such distribution was effected in satisfaction of the distribution requirements, and in accordance with the terms, of the Dagmar Dolby 2016 Trust BB's trust instrument, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"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 over which is held by David E. Dolby as Special Trustee of the Dagmar Dolby 2016 Trust BB. This report is filed by Dagmar Dolby with respect to the securities held and transactions effected by the Dagmar Dolby 2016 Trust BB. The reporting person disclaims beneficial ownership of these securities except to the extent of her respective pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1155977},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979500,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":true,"shares":1556423,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F5","text":"On March 28, 2018, the Dagmar Dolby 2016 Trust BB (as defined below) transferred 1,556,423 shares of Class B Common Stock to the Dagmar Dolby Trust. Such share transfer was effected in satisfaction of the annuity payment requirements, and in accordance with the terms, of the Dagmar Dolby 2016 Trust BB's trust instrument, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor. 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, and as a result the reporting persons are voluntarily reporting such share transfer on this Form 4."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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 over 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."}],"balance_after":11942617,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1556423},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979499,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":false,"shares":1556423,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F5","text":"On March 28, 2018, the Dagmar Dolby 2016 Trust BB (as defined below) transferred 1,556,423 shares of Class B Common Stock to the Dagmar Dolby Trust. Such share transfer was effected in satisfaction of the annuity payment requirements, and in accordance with the terms, of the Dagmar Dolby 2016 Trust BB's trust instrument, and was a transfer for no value without the payment or receipt of any funds or other consideration by any reporting person in exchange therefor. 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, and as a result the reporting persons are voluntarily reporting such share transfer on this Form 4."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"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 over which is held by David E. Dolby as Special Trustee of the Dagmar Dolby 2016 Trust BB. This report is filed by Dagmar Dolby with respect to the securities held and transactions effected by the Dagmar Dolby 2016 Trust BB. The reporting person disclaims beneficial ownership of these securities except to the extent of her respective pecuniary interest therein."}],"balance_after":1155977,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1556423},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979498,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"exercise","acquired":false,"shares":1000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On March 28, 2018, the Dagmar Dolby Trust (as defined below) converted 1,000,000 shares of Class B Common Stock into the same number of shares of Class A Common Stock and gifted all such shares of Class A Common Stock to the Dagmar Dolby Fund, a charitable organization of which Dagmar Dolby serves as one of three directors."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F4","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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 over 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."}],"balance_after":10386194,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1000000},"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979497,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"gift","acquired":false,"shares":1000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"On March 28, 2018, the Dagmar Dolby Trust (as defined below) converted 1,000,000 shares of Class B Common Stock into the same number of shares of Class A Common Stock and gifted all such shares of Class A Common Stock to the Dagmar Dolby Fund, a charitable organization of which Dagmar Dolby serves as one of three directors."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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 over 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."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":3979496,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":2,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":3,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class A Common Stock","published_at":"2018-03-29T21:40:28.000Z","date":"2018-03-28","kind":"exercise","acquired":true,"shares":1000000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"security","element":"securityTitle","label":"F1","text":"Each share of Class A Common Stock issued upon conversion of one share of Class B Common Stock at the election of the holder."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On March 28, 2018, the Dagmar Dolby Trust (as defined below) converted 1,000,000 shares of Class B Common Stock into the same number of shares of Class A Common Stock and gifted all such shares of Class A Common Stock to the Dagmar Dolby Fund, a charitable organization of which Dagmar Dolby serves as one of three directors."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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 over 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."}],"balance_after":1000000,"source":{"system":"sec-edgar","filing":"0001209191-18-022121","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919118022121/doc4.xml","form_type":"4"}},{"id":4303075,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":175731,"kind":"organization","name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","position":2,"cik":"0001670400","reported_name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":3,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":4,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2017-05-26T16:19:47.000Z","date":"2017-05-25","kind":"gift","acquired":true,"shares":390000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F7","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"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."}],"balance_after":12526194,"derivative":{"underlying":"Class A Common Stock","underlying_shares":390000},"source":{"system":"sec-edgar","filing":"0001209191-17-035814","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1670400/000120919117035814/doc4.xml","form_type":"4"}},{"id":4303074,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":175731,"kind":"organization","name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","position":2,"cik":"0001670400","reported_name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":3,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":4,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2017-05-26T16:19:47.000Z","date":"2017-05-25","kind":"gift","acquired":false,"shares":390000,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F7","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F8","text":"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."}],"balance_after":24932162,"derivative":{"underlying":"Class A Common Stock","underlying_shares":390000},"source":{"system":"sec-edgar","filing":"0001209191-17-035814","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1670400/000120919117035814/doc4.xml","form_type":"4"}},{"id":4303073,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":175731,"kind":"organization","name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","position":2,"cik":"0001670400","reported_name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":3,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":4,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2017-05-26T16:19:47.000Z","date":"2017-05-25","kind":"gift","acquired":true,"shares":1937600,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F5","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"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."}],"balance_after":1937600,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1937600},"source":{"system":"sec-edgar","filing":"0001209191-17-035814","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1670400/000120919117035814/doc4.xml","form_type":"4"}},{"id":4303072,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":175731,"kind":"organization","name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","position":2,"cik":"0001670400","reported_name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":3,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":4,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2017-05-26T16:19:47.000Z","date":"2017-05-25","kind":"gift","acquired":false,"shares":1937600,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F5","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"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."}],"balance_after":12136194,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1937600},"source":{"system":"sec-edgar","filing":"0001209191-17-035814","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1670400/000120919117035814/doc4.xml","form_type":"4"}},{"id":4303071,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":175731,"kind":"organization","name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","position":2,"cik":"0001670400","reported_name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":3,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":4,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2017-05-26T16:19:47.000Z","date":"2017-05-25","kind":"gift","acquired":true,"shares":1937600,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"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."}],"balance_after":14073794,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1937600},"source":{"system":"sec-edgar","filing":"0001209191-17-035814","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1670400/000120919117035814/doc4.xml","form_type":"4"}},{"id":4303070,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":175731,"kind":"organization","name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","position":2,"cik":"0001670400","reported_name":"Dagmar Dolby 2016 Trust BB, dated March 23, 2016","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":18688,"kind":"organization","name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","position":3,"cik":"0001598813","reported_name":"DAGMAR DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":4,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2017-05-26T16:19:47.000Z","date":"2017-05-25","kind":"gift","acquired":false,"shares":1937600,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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."}],"balance_after":2712400,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1937600},"source":{"system":"sec-edgar","filing":"0001209191-17-035814","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1670400/000120919117035814/doc4.xml","form_type":"4"}},{"id":4516734,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":2,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2016-12-19T21:13:39.000Z","date":"2016-12-15","kind":"gift","acquired":true,"shares":1474365,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On December 15, 2016, each of the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B transferred to the Marital Trust (each such trust as defined below) all securities of the Issuer held of record by each such trust, totaling (i) 1,473,301 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust A and (ii) 1,474,365 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust B. Each such share transfer was made pursuant to the terms of the trust instruments for the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B, respectively, for tax and estate planning purposes and for no value, and no reporting person received any funds or other consideration in exchange for such share transfers."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"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, son of Dagmar 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."}],"balance_after":25322162,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1474365},"source":{"system":"sec-edgar","filing":"0001209191-16-155890","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919116155890/doc4.xml","form_type":"4"}},{"id":4516733,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":2,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2016-12-19T21:13:39.000Z","date":"2016-12-15","kind":"gift","acquired":false,"shares":1474365,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On December 15, 2016, each of the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B transferred to the Marital Trust (each such trust as defined below) all securities of the Issuer held of record by each such trust, totaling (i) 1,473,301 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust A and (ii) 1,474,365 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust B. Each such share transfer was made pursuant to the terms of the trust instruments for the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B, respectively, for tax and estate planning purposes and for no value, and no reporting person received any funds or other consideration in exchange for such share transfers."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"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 Ray Dolby 2011 Trust B, dated December 14, 2011 (the \"Ray Dolby 2011 Trust B\"), voting power of which is held by David E. Dolby as Special Trustee of the Ray Dolby 2011 Trust B. This report is filed by Dagmar Dolby with respect to the securities held and transactions effected by the Ray Dolby 2011 Trust B.  The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1474365},"source":{"system":"sec-edgar","filing":"0001209191-16-155890","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919116155890/doc4.xml","form_type":"4"}},{"id":4516732,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":2,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2016-12-19T21:13:39.000Z","date":"2016-12-15","kind":"gift","acquired":true,"shares":1473301,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On December 15, 2016, each of the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B transferred to the Marital Trust (each such trust as defined below) all securities of the Issuer held of record by each such trust, totaling (i) 1,473,301 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust A and (ii) 1,474,365 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust B. Each such share transfer was made pursuant to the terms of the trust instruments for the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B, respectively, for tax and estate planning purposes and for no value, and no reporting person received any funds or other consideration in exchange for such share transfers."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"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, son of Dagmar 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."}],"balance_after":23847797,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1473301},"source":{"system":"sec-edgar","filing":"0001209191-16-155890","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919116155890/doc4.xml","form_type":"4"}},{"id":4516731,"issuer":{"id":2518,"kind":"organization","name":"Dolby Laboratories, Inc.","symbol":"DLB"},"owners":[{"id":18687,"kind":"person","name":"Dolby Dagmar","position":1,"cik":"0001537372","reported_name":"Dolby Dagmar","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}},{"id":167956,"kind":"organization","name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","position":2,"cik":"0001598817","reported_name":"MARITAL TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999","relationship":{"director":false,"officer":false,"ten_percent_owner":true,"other":false}}],"security":"Class B Common Stock","published_at":"2016-12-19T21:13:39.000Z","date":"2016-12-15","kind":"gift","acquired":false,"shares":1473301,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"On December 15, 2016, each of the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B transferred to the Marital Trust (each such trust as defined below) all securities of the Issuer held of record by each such trust, totaling (i) 1,473,301 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust A and (ii) 1,474,365 shares of Class B Common Stock transferred by the Ray Dolby 2011 Trust B. Each such share transfer was made pursuant to the terms of the trust instruments for the Ray Dolby 2011 Trust A and the Ray Dolby 2011 Trust B, respectively, for tax and estate planning purposes and for no value, and no reporting person received any funds or other consideration in exchange for such share transfers."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"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."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"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."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"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 Ray Dolby 2011 Trust A, dated December 14, 2011 (the \"Ray Dolby 2011 Trust A\"), voting power of which is held by Thomas E. Dolby, son of Dagmar Dolby, as Special Trustee of the Ray Dolby 2011 Trust A.  This report is filed by Dagmar Dolby with respect to the securities held and transactions effected by the Ray Dolby 2011 Trust A.  The reporting person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."}],"balance_after":0,"derivative":{"underlying":"Class A Common Stock","underlying_shares":1473301},"source":{"system":"sec-edgar","filing":"0001209191-16-155890","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1308547/000120919116155890/doc4.xml","form_type":"4"}}]}