Giles Baker

Insider

First SEC filing: Feb. 16, 2018 · Latest: Feb. 16, 2018

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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 Dec. 23, 2020

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 45 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

45 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Dec. 23, 2020	DLB	M	21,850	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 23, 2020	DLB	S	21,850	$94.00	$2,053,900	32,376 Direct	-40.29%	Disposed	-32.7% (price as of 2026-08-20)
Dec. 23, 2020	DLB	M	21,850	$45.50	$994,175	54,226 Direct	+67.49%	Acquired	38.9% (price as of 2026-08-20)
Dec. 18, 2020	DLB	S	1,575	$92.30	$145,372	32,376 Direct	-4.64%	Disposed	-31.5% (price as of 2026-08-20)
Dec. 17, 2020	DLB	S	1,575	$91.65	$144,349	33,951 Direct	-4.43%	Disposed	-31.0% (price as of 2026-08-20)
Dec. 17, 2020	DLB	F	1,550	$91.03	$141,096	35,526 Direct	-4.18%	Disposed	-30.6% (price as of 2026-08-20)
Dec. 16, 2020	DLB	M	959	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Dec. 16, 2020	DLB	S	526	$91.31	$48,029	37,076 Direct	-1.40%	Disposed	-30.8% (price as of 2026-08-20)
Dec. 16, 2020	DLB	S	433	$91.00	$39,403	37,602 Direct	-1.14%	Disposed	-30.5% (price as of 2026-08-20)
Dec. 16, 2020	DLB	M	959	$45.50	$43,634	38,035 Direct	+2.59%	Acquired	38.9% (price as of 2026-08-20)
Dec. 16, 2020	DLB	F	1,550	$92.08	$142,724	37,076 Direct	-4.01%	Disposed	-31.3% (price as of 2026-08-20)
Dec. 16, 2020	DLB	S	702	$91.92	$64,528	38,626 Direct	-1.78%	Disposed	-31.2% (price as of 2026-08-20)
Dec. 16, 2020	DLB	S	2,385	$90.90	$216,796	39,328 Direct	-5.72%	Disposed	-30.5% (price as of 2026-08-20)
Dec. 15, 2020	DLB	A	28,903	—	—	28,903 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 15, 2020	DLB	A	6,750	—	—	6,750 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 15, 2020	DLB	A	13,501	—	—	41,713 Direct	+47.86%	Acquired	(price as of 2026-08-20)
Dec. 15, 2020	DLB	F	3,038	$90.86	$276,033	28,212 Direct	-9.72%	Disposed	-30.4% (price as of 2026-08-20)
Dec. 4, 2020	DLB	M	22,041	—	—	959 Direct	-95.83%	Disposed	(price as of 2026-08-20)
Dec. 4, 2020	DLB	S	22,041	$91.00	$2,005,731	31,250 Direct	-41.36%	Disposed	-30.5% (price as of 2026-08-20)
Dec. 4, 2020	DLB	M	22,041	$45.50	$1,002,866	53,291 Direct	+70.53%	Acquired	38.9% (price as of 2026-08-20)
Nov. 16, 2020	DLB	M	23,000	—	—	23,000 Direct	-50.00%	Disposed	(price as of 2026-08-20)
Nov. 16, 2020	DLB	M	68,117	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 16, 2020	DLB	S	23,000	$87.14	$2,004,220	31,250 Direct	-42.40%	Disposed	-27.5% (price as of 2026-08-20)
Nov. 16, 2020	DLB	M	23,000	$45.50	$1,046,500	54,250 Direct	+73.60%	Acquired	38.9% (price as of 2026-08-20)
Nov. 16, 2020	DLB	S	100	$87.61	$8,761	31,250 Direct	-0.32%	Disposed	-27.8% (price as of 2026-08-20)
Nov. 16, 2020	DLB	S	68,017	$87.22	$5,932,443	31,350 Direct	-68.45%	Disposed	-27.5% (price as of 2026-08-20)
Nov. 16, 2020	DLB	M	68,117	$42.98	$2,927,669	99,367 Direct	+217.97%	Acquired	47.1% (price as of 2026-08-20)
Aug. 31, 2020	DLB	M	8,334	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Aug. 31, 2020	DLB	S	8,334	$70.28	$585,714	31,250 Direct	-21.05%	Disposed	-10.1% (price as of 2026-08-20)
Aug. 31, 2020	DLB	M	8,334	$33.15	$276,272	39,584 Direct	+26.67%	Acquired	90.7% (price as of 2026-08-20)
Jan. 2, 2020	DLB	M	43,160	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 2, 2020	DLB	S	43,160	$68.80	$2,969,408	31,250 Direct	-58.00%	Disposed	-8.1% (price as of 2026-08-20)
Jan. 2, 2020	DLB	M	43,160	$37.35	$1,612,026	74,410 Direct	+138.11%	Acquired	69.3% (price as of 2026-08-20)
Dec. 18, 2019	DLB	S	1,575	$68.46	$107,824	31,250 Direct	-4.80%	Disposed	-7.7% (price as of 2026-08-20)
Dec. 17, 2019	DLB	F	1,550	$68.40	$106,020	32,825 Direct	-4.51%	Disposed	-7.6% (price as of 2026-08-20)
Dec. 17, 2019	DLB	S	4,662	$68.64	$320,000	34,375 Direct	-11.94%	Disposed	-7.9% (price as of 2026-08-20)
Dec. 16, 2019	DLB	A	56,825	—	—	56,825 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 16, 2019	DLB	A	6,250	—	—	6,250 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 16, 2019	DLB	A	12,500	—	—	39,037 Direct	+47.10%	Acquired	(price as of 2026-08-20)
Dec. 16, 2019	DLB	F	4,588	$67.75	$310,837	26,537 Direct	-14.74%	Disposed	-6.7% (price as of 2026-08-20)
May 7, 2019	DLB	M	8,181	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 7, 2019	DLB	S	8,181	$65.30	$534,219	0 Direct	-100.00%	Disposed	-3.2% (price as of 2026-08-20)
May 7, 2019	DLB	M	8,181	$33.15	$271,200	8,181 Direct	—	Acquired	90.7% (price as of 2026-08-20)
May 6, 2019	DLB	M	23,069	—	—	8,181 Direct	-73.82%	Disposed	(price as of 2026-08-20)
May 6, 2019	DLB	M	12,499	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 6, 2019	DLB	S	23,069	$65.30	$1,506,406	0 Direct	-100.00%	Disposed	-3.2% (price as of 2026-08-20)
May 6, 2019	DLB	M	23,069	$33.15	$764,737	23,069 Direct	—	Acquired	90.7% (price as of 2026-08-20)
May 6, 2019	DLB	S	12,499	$65.33	$816,560	0 Direct	-100.00%	Disposed	-3.2% (price as of 2026-08-20)
May 6, 2019	DLB	M	12,499	$33.15	$414,342	12,499 Direct	—	Acquired	90.7% (price as of 2026-08-20)
Dec. 18, 2018	DLB	S	100	$65.23	$6,523	31,125 Direct	-0.32%	Disposed	-3.1% (price as of 2026-08-20)
Dec. 18, 2018	DLB	S	5,932	$64.52	$382,733	31,225 Direct	-15.96%	Disposed	-2.0% (price as of 2026-08-20)
Dec. 17, 2018	DLB	F	5,937	$66.17	$392,851	24,657 Direct	-19.41%	Disposed	-4.5% (price as of 2026-08-20)
Dec. 17, 2018	DLB	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 17, 2018	DLB	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 17, 2018	DLB	A	12,500	—	—	37,157 Direct	+50.70%	Acquired	(price as of 2026-08-20)
Aug. 23, 2018	DLB	M	5,000	—	—	43,160 Direct	-10.38%	Disposed	(price as of 2026-08-20)
Aug. 23, 2018	DLB	S	5,000	$70.00	$350,000	30,594 Direct	-14.05%	Disposed	-9.7% (price as of 2026-08-20)
Aug. 23, 2018	DLB	M	5,000	$37.35	$186,750	35,594 Direct	+16.34%	Acquired	69.3% (price as of 2026-08-20)
June 14, 2018	DLB	M	2,916	—	—	48,160 Direct	-5.71%	Disposed	(price as of 2026-08-20)
June 14, 2018	DLB	M	2,084	—	—	20,833 Direct	-9.09%	Disposed	(price as of 2026-08-20)
June 14, 2018	DLB	S	2,916	$65.00	$189,540	30,594 Direct	-8.70%	Disposed	-2.7% (price as of 2026-08-20)
June 14, 2018	DLB	M	2,916	$37.35	$108,913	33,510 Direct	+9.53%	Acquired	69.3% (price as of 2026-08-20)
June 14, 2018	DLB	S	2,084	$65.00	$135,460	30,594 Direct	-6.38%	Disposed	-2.7% (price as of 2026-08-20)
June 14, 2018	DLB	M	2,084	$33.15	$69,085	32,678 Direct	+6.81%	Acquired	90.7% (price as of 2026-08-20)
Feb. 28, 2018	DLB	M	20,000	—	—	51,076 Direct	-28.14%	Disposed	(price as of 2026-08-20)
Feb. 28, 2018	DLB	S	20,000	$64.33	$1,286,600	30,594 Direct	-39.53%	Disposed	-1.7% (price as of 2026-08-20)
Feb. 28, 2018	DLB	M	20,000	$37.35	$747,000	50,594 Direct	+65.37%	Acquired	69.3% (price as of 2026-08-20)
Feb. 27, 2018	DLB	M	9,375	—	—	22,917 Direct	-29.03%	Disposed	(price as of 2026-08-20)
Feb. 27, 2018	DLB	S	9,375	$63.24	$592,875	30,594 Direct	-23.46%	Disposed	0.0% (price as of 2026-08-20)
Feb. 27, 2018	DLB	M	9,375	$33.15	$310,781	39,969 Direct	+30.64%	Acquired	90.7% (price as of 2026-08-20)
Feb. 27, 2018	DLB	S	6,491	$64.50	$418,670	30,594 Direct	-17.50%	Disposed	-2.0% (price as of 2026-08-20)

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
Dec. 23, 2020	DLB	Employee Stock Option (right to buy)	Class A Common Stock (21,850)	$45.50	Dec. 15, 2023	21,850	Disposed
Dec. 16, 2020	DLB	Employee Stock Option (Right to Buy)	Class A Common Stock (959)	$45.50	Dec. 15, 2026	959	Disposed
Dec. 15, 2020	DLB	Employee Stock Option (Right to Buy)	Class A Common Stock (28,903)	$92.08	Dec. 15, 2030	28,903	Acquired
Dec. 15, 2020	DLB	Performance-Based Restricted Stock Unit	Class A Common Stock (6,750)	—	—	6,750	Acquired
Dec. 4, 2020	DLB	Employee Stock Option (right to buy)	Class A Common Stock (22,041)	$45.50	Dec. 15, 2026	22,041	Disposed
Nov. 16, 2020	DLB	Employee Stock Option (right to buy)	Class A Common Stock (23,000)	$45.50	Dec. 15, 2026	23,000	Disposed
Nov. 16, 2020	DLB	Employee Stock Option (right to buy)	Class A Common Stock (68,117)	$42.98	Dec. 15, 2024	68,117	Disposed
Aug. 31, 2020	DLB	Employee Stock Option (right to buy)	Class A Common Stock (8,334)	$33.15	Dec. 15, 2025	8,334	Disposed
Jan. 2, 2020	DLB	Employee Stock Option (right to buy)	Class A Common Stock (43,160)	$37.35	Dec. 16, 2023	43,160	Disposed
Dec. 16, 2019	DLB	Employee Stock Option (Right to Buy)	Class A Common Stock (56,825)	$68.40	Dec. 16, 2029	56,825	Acquired
Dec. 16, 2019	DLB	Performance-Based Restricted Stock Unit	Class A Common Stock (6,250)	—	—	6,250	Acquired
May 7, 2019	DLB	Performance-Based Stock Option (right to buy)	Class A Common Stock (8,181)	$33.15	Dec. 15, 2022	8,181	Disposed
May 6, 2019	DLB	Performance-Based Stock Option (right to buy)	Class A Common Stock (23,069)	$33.15	Dec. 15, 2022	23,069	Disposed
May 6, 2019	DLB	Employee Stock Option (right to buy)	Class A Common Stock (12,499)	$33.15	Dec. 15, 2025	12,499	Disposed
Dec. 17, 2018	DLB	Employee Stock Option (Right to Buy)	Class A Common Stock (50,000)	$64.60	Dec. 17, 2028	50,000	Acquired
Dec. 17, 2018	DLB	Performance-Based Stock Option (Right to Buy)	Class A Common Stock (25,000)	$64.60	Dec. 17, 2025	25,000	Acquired
Aug. 23, 2018	DLB	Employee Stock Option (right to buy)	Class A Common Stock (5,000)	$37.35	Dec. 16, 2023	5,000	Disposed
June 14, 2018	DLB	Employee Stock Option (right to buy)	Class A Common Stock (2,916)	$37.35	Dec. 16, 2023	2,916	Disposed
June 14, 2018	DLB	Employee Stock Option (right to buy)	Class A Common Stock (2,084)	$33.15	Dec. 15, 2025	2,084	Disposed
Feb. 28, 2018	DLB	Employee Stock Option (right to buy)	Class A Common Stock (20,000)	$37.35	Dec. 16, 2023	20,000	Disposed
Feb. 27, 2018	DLB	Employee Stock Option (right to buy)	Class A Common Stock (9,375)	$33.15	Dec. 15, 2025	9,375	Disposed

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

Initial ownership (Form 3) 9 holdings

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

Date	Ticker	Security	Shares	Ownership
Feb. 16, 2018	DLB	Class A Common Stock	37,085	Direct
Feb. 16, 2018	DLB	Employee Stock Option (Right to Buy)→ Class A Common Stock (71,076)	71,076	Direct
Feb. 16, 2018	DLB	Employee Stock Option (Right to Buy)→ Class A Common Stock (68,117)	68,117	Direct
Feb. 16, 2018	DLB	Employee Stock Option (Right to Buy)→ Class A Common Stock (32,292)	32,292	Direct
Feb. 16, 2018	DLB	Employee Stock Option (Right to Buy)→ Class A Common Stock (46,000)	46,000	Direct
Feb. 16, 2018	DLB	Employee Stock Option (Right to Buy)→ Class A Common Stock (52,000)	52,000	Direct
Feb. 16, 2018	DLB	Performance-Based Stock Option (Right to Buy)→ Class A Common Stock (25,000)	25,000	Direct
Feb. 16, 2018	DLB	Performance-Based Stock Option (Right to Buy)→ Class A Common Stock (23,000)	23,000	Direct
Feb. 16, 2018	DLB	Performance-Based Stock Option (Right to Buy)→ Class A Common Stock (26,000)	26,000	Direct