SEC Form 4 reporting owner

Tien Bor-Zen

Tien Bor-Zen has filed 27 Form 4 transactions reported between March 22, 2026 and September 7, 2026, as VP of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD.

Name as filed: Tien Bor-Zen

Open-market buys, 24 mo

$22K

7 lines

Open-market sales, 24 mo

None

reported

Companies

with Form 4 filings

Latest transaction

Sep 7, 2026

transaction date

Roles and reported holdings

TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
Mar 22, 2026 – Sep 7, 2026
VP
Held directly132 sh as of Jul 28, 2026 · Form 4
24 months: $22K bought
19 lines are priced far from TSM’s market price that day, so the filing may concern a different security. Left out of totals and holdings; see the filings.

Transaction history

All 27 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Sep 7, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	5	$76.20	$381@ $76.20	85	Form 4
Sep 7, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	43	$76.20	$3K@ $76.20	313	Form 4
Aug 7, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	7	$73.31	$513@ $73.31	80	Form 4
Aug 7, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another securityAlso reported by Yuan Lipen	42	$73.31	$3K@ $73.31	270	Form 4
Aug 3, 2026	TSMVP	Open-market purchaseCode P · directPrice far from market; may be another security	1,000	$73.06	$73K@ $73.06	14,051	Form 4
Jul 28, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	1,000	$67.97	$68K@ $67.97	5,000	Form 4
Jul 28, 2026	TSMVP	Open-market purchaseCode P · direct	5	$390.00	$2K@ $390.00	132	Form 4
Jul 28, 2026	TSMVP	Open-market purchaseCode P · direct	10	$390.00	$4K@ $390.00	127	Form 4
Jul 21, 2026	TSMVP	Open-market purchaseCode P · directPrice far from market; may be another securityAlso reported by Lin Shyue-Shyh	1,000	$74.13	$74K@ $74.13	13,051	Form 4
Jul 20, 2026	TSMVP	Open-market purchaseCode P · direct	10	$405.00	$4K@ $405.00	117	Form 4
Jul 7, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	6	$76.62	$460@ $76.62	73	Form 4
Jul 7, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another securityAlso reported by Yuan Lipen, Hwang Yuan-Ko	40	$76.62	$3K@ $76.62	228	Form 4
Jun 30, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	1,000	$75.70	$76K@ $75.70	1,000	Form 4
Jun 29, 2026	TSMVP	Open-market purchaseCode P · directPrice far from market; may be another security	1,000	$76.64	$77K@ $76.64	12,051	Form 4
Jun 5, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	7	$76.01	$532@ $76.01	67	Form 4
Jun 5, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	43	$76.01	$3K@ $76.01	188	Form 4
May 20, 2026	TSMVP	Open-market purchaseCode P · direct	7	$400.00	$3K@ $400.00	107	Form 4
May 19, 2026	TSMVP	Open-market purchaseCode P · directPrice far from market; may be another security	1,000	$69.98	$70K@ $69.98	10,051	Form 4
May 19, 2026	TSMVP	Open-market purchaseCode P · direct	10	$391.81	$4K@ $391.81	100	Form 4
May 8, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	7	$71.82	$503@ $71.82	60	Form 4
May 8, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another securityAlso reported by Yuan Lipen	44	$71.82	$3K@ $71.82	145	Form 4
Apr 28, 2026	TSMVP	Open-market purchaseCode P · direct	5	$390.00	$2K@ $390.00	85	Form 4
Apr 28, 2026	TSMVP	Open-market purchaseCode P · direct	10	$386.00	$4K@ $386.00	80	Form 4
Apr 24, 2026	TSMVP	Expiration of long derivativeCode H · direct	20,000	—	—	0	Form 4
Apr 9, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	9	$57.87	$521@ $57.87	53	Form 4
Apr 9, 2026	TSMVP	Open-market purchaseCode P · indirectPrice far from market; may be another security	53	$57.87	$3K@ $57.87	101	Form 4
Mar 22, 2026	TSMVP	Open-market purchaseCode P · directPrice far from market; may be another security	1,000	$55.93	$56K@ $55.93	9,051	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.

19 open-market lines are priced outside 0.67×–1.5× of the stock’s closing price that day. A gap that large usually means the filing reports a different security than the company it is filed under, so those lines are shown but left out of totals and holdings.

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