SEC Form 4 reporting owner

Cole Martin I

Cole Martin I has filed 65 Form 4 transactions reported between December 1, 2025 and September 17, 2026, as Director of WESTERN DIGITAL CORP and Director of Western Union CO.

Name as filed: Cole Martin I

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$5.4M

60 lines

Companies

with Form 4 filings

Latest transaction

Sep 17, 2026

transaction date

Roles and reported holdings

WDCWESTERN DIGITAL CORP
Dec 1, 2025 – Sep 17, 2026
Director
Held directly21,625 sh as of Jul 28, 2026 · Form 4
24 months: $5.4M sold
WUWestern Union CO
Mar 2, 2026
Director
No common-stock holding reported on a purchase, sale, gift or withholding line.

Transaction history

All 65 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 17, 2026	WDCDirector	Grant or awardCode A · direct	1	—	—	3	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	199	$461.23	$92K@ $461.23	21,625	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	248	$459.97	$114K@ $459.97	21,824	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	529	$458.96	$243K@ $458.96	22,072	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	328	$457.45	$150K@ $457.45	22,601	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	312	$456.52	$142K@ $456.52	22,929	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	304	$455.55	$138K@ $455.55	23,241	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	128	$454.44	$58K@ $454.44	23,545	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	144	$453.27	$65K@ $453.27	23,673	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	106	$452.12	$48K@ $452.12	23,817	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	70	$451.30	$32K@ $451.30	23,923	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	39	$449.42	$18K@ $449.42	23,993	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	41	$448.46	$18K@ $448.46	24,032	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	96	$440.96	$42K@ $440.96	24,169	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	118	$438.08	$52K@ $438.08	24,329	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	154	$436.89	$67K@ $436.89	24,447	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	112	$433.84	$49K@ $433.84	24,697	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	38	$432.20	$16K@ $432.20	24,809	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	103	$430.45	$44K@ $430.45	24,962	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	93	$429.12	$40K@ $429.12	25,065	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	115	$428.08	$49K@ $428.08	25,158	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	64	$424.05	$27K@ $424.05	25,369	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	32	$465.12	$15K@ $465.12	21,433	Form 4
Jul 28, 2026	WDCDirector	Open-market saleCode S · direct	160	$462.30	$74K@ $462.30	21,465	Form 4
Jun 17, 2026	WDCDirector	Grant or awardCode A · direct	0	—	—	3	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	160	$521.14	$83K@ $521.14	26,377	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	216	$517.59	$112K@ $517.59	26,585	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	392	$515.40	$202K@ $515.40	26,913	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	296	$514.09	$152K@ $514.09	27,305	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	316	$513.14	$162K@ $513.14	27,601	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	310	$511.67	$159K@ $511.67	27,917	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	326	$510.61	$166K@ $510.61	28,227	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	80	$503.80	$40K@ $503.80	28,777	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	128	$502.87	$64K@ $502.87	28,857	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	44	$493.64	$22K@ $493.64	29,193	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	30	$492.38	$15K@ $492.38	29,237	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	38	$491.06	$19K@ $491.06	29,267	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	32	$539.82	$17K@ $539.82	25,561	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	57	$538.81	$31K@ $538.81	25,593	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	71	$537.73	$38K@ $537.73	25,650	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	112	$536.27	$60K@ $536.27	25,721	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	16	$534.90	$9K@ $534.90	25,833	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	96	$533.01	$51K@ $533.01	25,897	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	64	$530.27	$34K@ $530.27	26,041	Form 4
Jun 9, 2026	WDCDirector	Open-market saleCode S · direct	48	$528.07	$25K@ $528.07	26,105	Form 4
Mar 18, 2026	WDCDirector	Grant or awardCode A · direct	1	—	—	2	Form 4
Mar 2, 2026	WUDirector	Grant or awardCode A · direct	20,921	—	—	120,018	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	193	$280.73	$54K@ $280.73	29,533	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	107	$278.97	$30K@ $278.97	29,726	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	200	$273.56	$55K@ $273.56	30,433	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	1,100	$272.56	$300K@ $272.56	30,633	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	1,400	$271.68	$380K@ $271.68	31,733	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	966	$269.72	$261K@ $269.72	33,133	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	634	$268.84	$170K@ $268.84	34,099	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	300	$265.70	$80K@ $265.70	35,033	Form 4
Mar 2, 2026	WDCDirector	Open-market saleCode S · direct	100	$263.66	$26K@ $263.66	35,333	Form 4
Dec 18, 2025	WDCDirector	Grant or awardCode A · direct	1	—	—	1	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	510	$164.95	$84K@ $164.95	35,433	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	2,539	$164.20	$417K@ $164.20	35,943	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	451	$163.16	$74K@ $163.16	38,482	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	400	$162.12	$65K@ $162.12	38,933	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	900	$161.17	$145K@ $161.17	39,333	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	600	$159.89	$96K@ $159.89	40,233	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	500	$158.98	$79K@ $158.98	40,833	Form 4
Dec 1, 2025	WDCDirector	Open-market saleCode S · direct	100	$157.50	$16K@ $157.50	41,333	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.