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$DLB

$52.40 -$6.41 (10.9%)

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Valuations P Insider Transactions P Congressional Trades P

Insider Transactions

Insider Transaction Summary

KEVIN J YEAMAN

145,252 shares

Net: -155,943 B/S: 1.26

LEWIS CHEW

135,598 shares

Net: 0 B/S: -

John D Couling

126,393 shares

Net: -1,903 B/S: 1.23

David Dolby

92,718 shares

Net: +3,908 B/S: ∞

Robert J Park

81,881 shares

Net: +15,796 B/S: 6.45

Shriram Revankar

76,274 shares

Net: -1,546 B/S: 1.63

MARK ANDREW SHERMAN

70,563 shares

Net: +10,537 B/S: 2.63

Micheline Chau

66,882 shares

Net: 0 B/S: -

Steven E Forshay

55,022 shares

Net: 0 B/S: -

Simon Segars

47,150 shares

Net: +3,908 B/S: ∞

Bob Borchers

45,032 shares

Net: 0 B/S: -

PETER C GOTCHER

44,641 shares

Net: +3,908 B/S: ∞

Todd Pendleton

41,480 shares

Net: +4,190 B/S: 2.03

Ryan Nicholson

39,623 shares

Net: +6,848 B/S: 4.39

ROGER S SIBONI

37,554 shares

Net: 0 B/S: -

MICHAEL BERGERON

34,940 shares

Net: 0 B/S: -

Giles Baker

32,376 shares

Net: 0 B/S: -

NICHOLAS JR DONATIELLO

18,411 shares

Net: 0 B/S: -

Anjali Sud

16,079 shares

Net: +3,908 B/S: ∞

Tony A Prophet

13,015 shares

Net: +608 B/S: 1.18

Emily Rollins

12,541 shares

Net: +2,908 B/S: 3.91

Dagmar Dolby

10,000 shares

Net: 0 B/S: ∞

N WILLIAM JR JASPER

7,000 shares

Net: 0 B/S: -

AVADIS TEVANIAN

3,908 shares

Net: +3,908 B/S: ∞

DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 DAGMAR

0 shares

Net: 0 B/S: -

TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 MARITAL

0 shares

Net: 0 B/S: -

Insider Name	Current Shares	Net Change (1yr)	Buy/Sell Ratio
KEVIN J YEAMAN	145,252	-155,943	1.26
LEWIS CHEW	135,598	0	-
John D Couling	126,393	-1,903	1.23
David Dolby	92,718	+3,908	∞
Robert J Park	81,881	+15,796	6.45
Shriram Revankar	76,274	-1,546	1.63
MARK ANDREW SHERMAN	70,563	+10,537	2.63
Micheline Chau	66,882	0	-
Steven E Forshay	55,022	0	-
Simon Segars	47,150	+3,908	∞
Bob Borchers	45,032	0	-
PETER C GOTCHER	44,641	+3,908	∞
Todd Pendleton	41,480	+4,190	2.03
Ryan Nicholson	39,623	+6,848	4.39
ROGER S SIBONI	37,554	0	-
MICHAEL BERGERON	34,940	0	-
Giles Baker	32,376	0	-
NICHOLAS JR DONATIELLO	18,411	0	-
Anjali Sud	16,079	+3,908	∞
Tony A Prophet	13,015	+608	1.18
Emily Rollins	12,541	+2,908	3.91
Dagmar Dolby	10,000	0	∞
N WILLIAM JR JASPER	7,000	0	-
AVADIS TEVANIAN	3,908	+3,908	∞
DOLBY TRUST UNDER DOLBY FAMILY TRUST INSTRUMENT DATED MAY 7, 1999 DAGMAR	0	0	-
TRUST UNDER DOLBY FAMILY TRUST DATED MAY 7, 1999 MARITAL	0	0	-

Individual Transactions

June 01, 2026

John D Couling

Open Market Sale

Change: -7,158

Price: $55.59

Shares: 119,235

Value: -$397,890

John D Couling

Option Exercise/Conversion

Change: +7,666

Price: $45.50

Shares: 126,393

Value: +$348,803

Insider	Filing Date	Transaction	Shares	Change	Price	Value
John D Couling	Jun 03	Open Market Sale (S) Market Sale	119,235	-7,158	$55.59	-$397,890
John D Couling	Jun 03	Option Exercise/Conversion (M) Compensation/Award	126,393	+7,666	$45.50	+$348,803

May 22, 2026

Todd Pendleton

Open Market Sale

Change: -11,876

Price: $54.55

Shares: 41,480

Value: -$647,857

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Todd Pendleton	May 27	Open Market Sale (S) Market Sale	41,480	-11,876	$54.55	-$647,857

May 18, 2026

Shriram Revankar

Tax Payment

Change: -4,329

Price: $54.21

Shares: 76,274

Value: -$234,675

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Shriram Revankar	May 19	Tax Payment (F) Tax Payment	76,274	-4,329	$54.21	-$234,675

May 15, 2026

Shriram Revankar

Open Market Sale

Change: -3,000

Price: $54.90

Shares: 80,603

Value: -$164,700

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Shriram Revankar	May 19	Open Market Sale (S) Market Sale	80,603	-3,000	$54.90	-$164,700

May 12, 2026

Robert J Park

Open Market Sale

Change: -4,504

Price: $56.62

Shares: 81,881

Value: -$255,000

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Robert J Park	May 14	Open Market Sale (S) Market Sale	81,881	-4,504	$56.62	-$255,000

May 05, 2026

John D Couling

Open Market Sale

Change: -6,928

Price: $57.47

Shares: 119,091

Value: -$398,157

John D Couling

Option Exercise/Conversion

Change: +7,666

Price: $45.50

Shares: 126,019

Value: +$348,803

Insider	Filing Date	Transaction	Shares	Change	Price	Value
John D Couling	May 06	Open Market Sale (S) Market Sale	119,091	-6,928	$57.47	-$398,157
John D Couling	May 06	Option Exercise/Conversion (M) Compensation/Award	126,019	+7,666	$45.50	+$348,803

May 04, 2026

John D Couling

Open Market Sale

Change: -4,688

Price: $58.47

Shares: 118,353

Value: -$274,083

Insider	Filing Date	Transaction	Shares	Change	Price	Value
John D Couling	May 06	Open Market Sale (S) Market Sale	118,353	-4,688	$58.47	-$274,083

April 01, 2026

Emily Rollins

Open Market Sale

Change: -1,000

Price: $60.08

Shares: 12,541

Value: -$60,080

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Emily Rollins	Apr 03	Open Market Sale (S) Market Sale	12,541	-1,000	$60.08	-$60,080

February 25, 2026

Dagmar Dolby

Derivative Conversion

Change: +10,000

Price: $0.00

Shares: 10,000

Value: +$0

Dagmar Dolby

Gift

Change: -10,000

Price: $0.00

Shares: 0

Value: -$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Dagmar Dolby	Feb 27	Derivative Conversion (C) Derivative Exercise	10,000	+10,000	$0.00	+$0
Dagmar Dolby	Feb 27	Gift (G) Non-Market Transfer	0	-10,000	$0.00	-$0

February 17, 2026

Shriram Revankar

Open Market Sale

Change: -3,000

Price: $66.14

Shares: 83,218

Value: -$198,420

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Shriram Revankar	Feb 17	Open Market Sale (S) Market Sale	83,218	-3,000	$66.14	-$198,420

February 13, 2026

Ryan Nicholson

Option Exercise/Conversion

Change: +2,667

Price: $45.50

Shares: 39,623

Value: +$121,348

Ryan Nicholson

Open Market Sale

Change: -2,667

Price: $66.38

Shares: 36,956

Value: -$177,022

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Ryan Nicholson	Feb 17	Option Exercise/Conversion (M) Compensation/Award	39,623	+2,667	$45.50	+$121,348
Ryan Nicholson	Feb 17	Open Market Sale (S) Market Sale	36,956	-2,667	$66.38	-$177,022

February 11, 2026

Dagmar Dolby

Gift

Change: -380,000

Price: $0.00

Shares: 0

Value: -$0

Dagmar Dolby

Derivative Conversion

Change: +380,000

Price: $0.00

Shares: 380,000

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Dagmar Dolby	Feb 13	Gift (G) Non-Market Transfer	0	-380,000	$0.00	-$0
Dagmar Dolby	Feb 13	Derivative Conversion (C) Derivative Exercise	380,000	+380,000	$0.00	+$0

February 05, 2026

KEVIN J YEAMAN

Gift

Change: -145,252

Price: $0.00

Shares: 145,252

Value: -$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
KEVIN J YEAMAN	Feb 09	Gift (G) Non-Market Transfer	145,252	-145,252	$0.00	-$0

February 03, 2026

Simon Segars

Grant/Award Acquisition

Change: +3,908

Price: $0.00

Shares: 47,150

Value: +$0

David Dolby

Grant/Award Acquisition

Change: +3,908

Price: $0.00

Shares: 92,718

Value: +$0

Insider	Filing Date	Transaction	Shares	Change	Price	Value
Simon Segars	Feb 05	Grant/Award Acquisition (A) Compensation/Award	47,150	+3,908	$0.00	+$0
David Dolby	Feb 05	Grant/Award Acquisition (A) Compensation/Award	92,718	+3,908	$0.00	+$0