$SNDK

▶ 2026-04-20

2 other

⚡ 2 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Ilkbahar Alper	EVP, Chief Technology Officer	F	2,251	$913	$2.1M		Apr 21
Shek Bernard	Chief Legal Officer & Secty	F	41	$913	$37K		Apr 21

▶ 2026-03-20

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Shek Bernard	Chief Legal Officer & Secty	F	117	$710	$83K		Mar 24

▶ 2026-01-20

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Shek Bernard	Chief Legal Officer & Secty	F	34	$453	$15K		Jan 21

▶ 2025-12-30

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Bradley Alexander R.	—	A	863	$0	$0		Jan 2

▶ 2025-12-20

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Shek Bernard	Chief Legal Officer & Secty	F	117	$238	$28K		Dec 23

▶ 2025-12-03

▼ 1 sell · $248K

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Sayiner Necip	—	▼ Sell	1,271	$195	$248K		Dec 4

▶ 2025-11-25

3 other

⚡ 3 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chief Executive Officer	F	1,569	$220	$346K		Nov 26
Ilkbahar Alper	EVP, Chief Technology Officer	F	653	$220	$144K		Nov 26
Shek Bernard	Chief Legal Officer & Secty	F	211	$220	$47K		Nov 26

▶ 2025-11-20

4 other

⚡ 4 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chief Executive Officer	F	1,299	$196	$255K		Nov 24
Ilkbahar Alper	EVP, Chief Technology Officer	F	162	$196	$32K		Nov 24
Pokorny Michael	VP, Chief Accounting Officer	F	821	$196	$161K		Nov 24
Shek Bernard	Chief Legal Officer & Secty	F	109	$196	$21K		Nov 24

▶ 2025-11-21

4 other

⚡ 4 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chief Executive Officer	F	1,032	$200	$207K		Nov 24
Ilkbahar Alper	EVP, Chief Technology Officer	F	319	$200	$64K		Nov 24
Shek Bernard	Chief Legal Officer & Secty	F	107	$200	$21K		Nov 24
Visoso Luis Felipe	EVP and Chief Financial Office	F	1,588	$200	$318K		Nov 24

▶ 2025-11-18

6 other

⚡ 6 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Cassidy Richard B. II	—	A	1,143	$0	$0		Nov 19
Caulfield Thomas	—	A	979	$0	$0		Nov 19
KUMAR DEVINDER	—	A	979	$0	$0		Nov 19
Sayiner Necip	—	A	979	$0	$0		Nov 19
Shook Ellyn	—	A	979	$0	$0		Nov 19
Suzuki Miyuki	—	A	979	$0	$0		Nov 19

▶ 2025-11-17

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Suzuki Miyuki	—	F	2,213	$266	$588K		Nov 19

▶ 2025-10-20

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Shek Bernard	Chief Legal Officer & Secty	F	362	$148	$54K		Oct 21

▶ 2025-09-20

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Shek Bernard	Chief Legal Officer & Secty	F	117	$102	$12K		Sep 22

▶ 2025-09-03

5 other

⚡ 5 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	A	85,025	$0	$0		Sep 4
Ilkbahar Alper	EVP, Chief Technology Officer	A	26,161	$0	$0		Sep 4
Pokorny Michael	VP, Chief Accounting Officer	A	13,028	$0	$0		Sep 4
Visoso Luis Felipe	EVP and CFO	A	47,090	$0	$0		Sep 4
Shek Bernard	Chief Legal Officer & Secty	A	18,313	$0	$0		Sep 4

▶ 2025-08-25

3 other

⚡ 3 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	F	1,569	$47	$73K		Aug 27
Ilkbahar Alper	EVP, Chief Technology Officer	F	653	$47	$31K		Aug 27
Shek Bernard	Chief Legal Officer & Secty	F	211	$47	$10K		Aug 27

▶ 2025-08-27

2 other

⚡ 2 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	F	980	$48	$47K		Aug 27
Shek Bernard	Chief Legal Officer & Secty	F	78	$48	$4K		Aug 27

▶ 2025-08-20

4 other

⚡ 4 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	F	34,995	$44	$1.6M		Aug 22
Ilkbahar Alper	EVP, Chief Technology Officer	F	1,095	$44	$49K		Aug 22
Shek Bernard	Chief Legal Officer & Secty	F	110	$44	$5K		Aug 22
Visoso Luis Felipe	EVP and CFO	F	25,654	$44	$1.1M		Aug 22

▶ 2025-08-21

4 other

⚡ 4 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	F	4,129	$46	$188K		Aug 22
Ilkbahar Alper	EVP, Chief Technology Officer	F	1,278	$46	$58K		Aug 22
Shek Bernard	Chief Legal Officer & Secty	F	428	$46	$19K		Aug 22
Visoso Luis Felipe	EVP and CFO	F	6,353	$46	$289K		Aug 22

▶ 2025-07-20

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Shek Bernard	Chief Legal Officer & Secty	F	29	$42	$1K		Jul 22

▶ 2025-06-20

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Shek Bernard	Chief Legal Officer & Secty	F	184	$47	$9K		Jun 24

▶ 2025-06-09

1 other

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
WESTERN DIGITAL CORP	—	J	21,314,768	—	—		Jun 9

▶ 2025-05-25

3 other

⚡ 3 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	F	1,569	$37	$58K		May 28
Ilkbahar Alper	EVP, Chief Technology Officer	F	653	$37	$24K		May 28
Shek Bernard	Chief Legal Officer & Secty	F	147	$37	$5K		May 28

▶ 2025-05-27

2 other

⚡ 2 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	F	979	$38	$37K		May 28
Shek Bernard	Chief Legal Officer & Secty	F	54	$38	$2K		May 28

▶ 2025-05-20

3 other

⚡ 3 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	F	1,299	$40	$52K		May 22
Ilkbahar Alper	EVP, Chief Technology Officer	F	162	$40	$7K		May 22
Shek Bernard	Chief Legal Officer & Secty	F	76	$40	$3K		May 22

▶ 2025-05-09

5 other

⚡ 5 insiders

Insider	Title	Type	Shares	Price	$ Value	10b5-1	Filed
Goeckeler David	Chairman and CEO	A	953,895	$0	$0		May 13
Ilkbahar Alper	EVP, Chief Technology Officer	A	149,046	$0	$0		May 13
Pokorny Michael	VP, Chief Accounting Officer	A	7,750	$0	$0		May 13
Shek Bernard	Chief Legal Officer & Secty	A	59,121	$0	$0		May 13
Visoso Luis Felipe	EVP & CFO	A	357,708	$0	$0		May 13