Latest filing published 08 Oct 2026 for TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD, €3,741.
Filing timeline
BuySaleInsider track record
Closed purchases
Not enough history yet: 1 closed purchase, at least 2 are needed.
Purchases by company
Since each purchase
- +11.9%Entry US$422.06 · Close 07 Oct 2026 US$472.20
- +8.8%Entry US$434.11 · Close 07 Oct 2026 US$472.20
- +11.0%Entry US$379.89 · Close at T+90 US$421.58
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Shien-Yang Wu: trading record in brief
All filings by Shien-Yang Wu on record concern Taiwan Semiconductor Manufacturing Co Ltd. The record holds 5 filings, for trades running from 9 April 2026 to 7 October 2026.
Purchases make up the whole of the open-market record (5 purchases, €18k). Unlike grants, an open-market purchase is paid for by the insider, at the market price.
A typical purchase (the median) is worth €3,626. Scaled by market value, the purchases weigh a median 0.0000% of market cap (sample: 4 purchases). Clusters matter here: 4 out of 4 purchases overlapped with buying by a colleague within 30 days. A cluster is several different insiders buying the same stock within a short window, a pattern studied more closely than a single purchase.
Most recently, on 8 October 2026, the filings show an open-market purchase worth €3,741 in Taiwan Semiconductor Manufacturing Co Ltd. The median gap between a trade and its publication by SEC (Form 4) is 2 days. Section 16 rules allow two business days to file each Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.
Companies and markets linked to Shien-Yang Wu
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
- 53 shares@ US$79.39Common Shares (2330.TW)SEC:0001046179-26-000716:0Canonical exit: 5 Jan 2027 (T+90)
- 57 shares@ US$76.200.0000% mcap25.8% of flowCommon Shares (2330.TW)SEC:0001046179-26-000646:0Canonical exit: 6 Dec 2026 (T+90)
- 57 shares@ US$73.310.0000% mcap25.0% of flowCommon Shares (2330.TW)SEC:0001046179-26-000520:0Canonical exit: 5 Nov 2026 (T+90)
- 54 shares@ US$76.620.0000% mcap24.9% of flowCommon Shares (2330.TW)SEC:0001046179-26-000443:0Canonical exit: 5 Oct 2026 (T+90)
- 71 shares@ US$57.8724.2% of flowCommon Shares (2330.TW)SEC:0001046179-26-000188:0Canonical exit: 8 Jul 2026 (T+90)
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