Eduard A Schummer

Insider

First SEC filing: March 8, 2005 · Latest: March 8, 2005

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

DLB selling Feb. 1, 2006

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 10 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

10 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Feb. 1, 2006	DLB	C	9,000	—	—	67,410 Direct	-11.78%	Disposed	(price as of 2026-08-18)
Feb. 1, 2006	DLB	S	900	$21.10	$18,990	791 Direct	-53.22%	Disposed	191.9% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	200	$21.06	$4,212	1,691 Direct	-10.58%	Disposed	192.5% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	700	$21.05	$14,735	1,891 Direct	-27.02%	Disposed	192.6% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	900	$21.00	$18,900	2,591 Direct	-25.78%	Disposed	193.3% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	200	$20.96	$4,192	3,491 Direct	-5.42%	Disposed	193.8% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	1,500	$20.95	$31,425	3,691 Direct	-28.90%	Disposed	194.0% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	100	$20.93	$2,093	5,191 Direct	-1.89%	Disposed	194.3% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	900	$20.60	$18,540	5,291 Direct	-14.54%	Disposed	199.0% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	900	$20.55	$18,495	6,191 Direct	-12.69%	Disposed	199.7% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	500	$20.48	$10,240	7,091 Direct	-6.59%	Disposed	200.7% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	400	$20.47	$8,188	7,591 Direct	-5.01%	Disposed	200.9% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	100	$20.46	$2,046	7,991 Direct	-1.24%	Disposed	201.0% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	800	$20.42	$16,336	8,091 Direct	-9.00%	Disposed	201.6% (price as of 2026-08-18)
Feb. 1, 2006	DLB	S	900	$20.32	$18,288	8,891 Direct	-9.19%	Disposed	203.1% (price as of 2026-08-18)
Feb. 1, 2006	DLB	C	9,000	—	—	9,791 Direct	+1137.80%	Acquired	(price as of 2026-08-18)
Jan. 3, 2006	DLB	C	9,000	—	—	76,410 Direct	-10.54%	Disposed	(price as of 2026-08-18)
Jan. 3, 2006	DLB	S	900	$16.98	$15,282	791 Direct	-53.22%	Disposed	262.7% (price as of 2026-08-18)
Jan. 3, 2006	DLB	S	400	$17.15	$6,860	1,691 Direct	-19.13%	Disposed	259.1% (price as of 2026-08-18)
Jan. 3, 2006	DLB	S	500	$17.13	$8,565	2,091 Direct	-19.30%	Disposed	259.5% (price as of 2026-08-18)
Jan. 3, 2006	DLB	S	900	$17.05	$15,345	2,591 Direct	-25.78%	Disposed	261.2% (price as of 2026-08-18)
Jan. 3, 2006	DLB	S	5,400	$17.00	$91,800	3,491 Direct	-60.74%	Disposed	262.3% (price as of 2026-08-18)
Jan. 3, 2006	DLB	S	900	$16.99	$15,291	8,891 Direct	-9.19%	Disposed	262.5% (price as of 2026-08-18)
Jan. 3, 2006	DLB	C	9,000	—	—	9,791 Direct	+1137.80%	Acquired	(price as of 2026-08-18)
Dec. 20, 2005	DLB	C	250	—	—	85,410 Direct	-0.29%	Disposed	(price as of 2026-08-18)
Dec. 20, 2005	DLB	G	250	—	—	791 Direct	-24.02%	Disposed	(price as of 2026-08-18)
Dec. 20, 2005	DLB	C	250	—	—	1,041 Direct	+31.61%	Acquired	(price as of 2026-08-18)
Oct. 13, 2005	DLB	M	67,280	$1.26	$84,773	85,660 Direct	+366.05%	Acquired	4788.1% (price as of 2026-08-18)
Oct. 13, 2005	DLB	M	67,280	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-18)
June 16, 2005	DLB	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-18)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Feb. 1, 2006	DLB	Class B Common Stock	Class A Common Stock (9,000)	—	—	9,000	Disposed
Jan. 3, 2006	DLB	Class B Common Stock	Class A Common Stock (9,000)	—	—	9,000	Disposed
Dec. 20, 2005	DLB	Class B Common Stock	Class A Common Stock (250)	—	—	250	Disposed
Oct. 13, 2005	DLB	Class B Common Stock	Class A Common Stock (67,280)	—	—	67,280	Acquired
Oct. 13, 2005	DLB	Employee Stock Option (Right to Buy)	Class B Common Stock (67,280)	$1.26	Sept. 30, 2010	67,280	Disposed
June 16, 2005	DLB	Employee Stock Option (Right to Buy)	Class A Common Stock (50,000)	$19.20	June 15, 2015	50,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 8 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
March 8, 2005	DLB	Employee Stock Option (right to buy)→ Class B Common Stock [F5] (67,280)	67,280	Direct
March 8, 2005	DLB	Employee Stock Option (right to buy)→ Class B Common Stock [F5] (75,000)	75,000	Direct
March 8, 2005	DLB	Employee Stock Option (right to buy)→ Class B Common Stock [F5] (180,000)	180,000	Direct
March 8, 2005	DLB	Class B Common Stock→ Class A Common Stock (18,380)	18,380	Direct
Feb. 15, 2005	DLB	Employee Stock Option (right to buy)→ Class B Common Stock [F4] (67,280)	67,280	Direct
Feb. 15, 2005	DLB	Employee Stock Option (right to buy)→ Class B Common Stock [F4] (75,000)	75,000	Direct
Feb. 15, 2005	DLB	Employee Stock Option (right to buy)→ Class B Common Stock [F4] (180,000)	180,000	Direct
Feb. 15, 2005	DLB	Class B Common Stock→ Class A Common Stock (18,380)	18,380	Direct