Latest filing published 08 Oct 2026 for TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD, €2,823.
Filing timeline
BuySaleInsider track record
Closed purchases
Based on 5 purchases whose 90-day window has closed (published at least 91 days ago), the same population our ranking model reads.
Purchases by company
Since each purchase
- +11.9%Entry US$422.06 · Close 07 Oct 2026 US$472.20
- +14.1%Entry US$414.00 · Close 07 Oct 2026 US$472.20
- +16.8%Entry US$404.25 · Close 07 Oct 2026 US$472.20
- +17.1%Entry US$403.41 · Close 07 Oct 2026 US$472.20
- +8.8%Entry US$434.11 · Close 07 Oct 2026 US$472.20
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.
Bor-Zen Tien: trading record in brief
Bor-Zen Tien is a declared insider of Taiwan Semiconductor Manufacturing Co Ltd, with filings sourced from SEC (Form 4). Over a trading history stretching from 22 March 2026 to 7 October 2026, the count stands at 23 filings.
On the market, this insider has only ever bought: 23 purchases, €463k in total. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket.
Half of the purchases are above €2,820 and half below. Measured against the company's value, the median purchase equals 0.0000% of market capitalisation, across 17 purchases where it is known. Of 15 purchases, 14 formed part of a group of insiders buying within 30 days of each other. Purchases made close together by different insiders form what is called a cluster. After 5 purchases with a full 90-day history, the hit rate stands at 60% and the median 90-day move at +11.0%. They describe history only and say nothing certain about the share price ahead.
On 8 October 2026 came the latest disclosure, an open-market purchase for €2,823 in Taiwan Semiconductor Manufacturing Co Ltd. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. For comparison, the SEC allows two business days to file a Form 4. These figures are compiled from regulatory filings published by SEC (Form 4). They describe what insiders did and are not a recommendation.
Companies and markets linked to Bor-Zen Tien
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
- 40 shares@ US$79.39Common Shares (2330.TW)SEC:0001046179-26-000708:0Canonical exit: 5 Jan 2027 (T+90)
- 7 shares@ US$79.39Common Shares (2330.TW)SEC:0001046179-26-000708:1Canonical exit: 5 Jan 2027 (T+90)
- 43 shares@ US$76.200.0000% mcap0.6% of flowCommon Shares (2330.TW)SEC:0001046179-26-000643:0Canonical exit: 6 Dec 2026 (T+90)
- 5 shares@ US$76.200.0000% mcap0.1% of flowCommon Shares (2330.TW)SEC:0001046179-26-000643:1Canonical exit: 6 Dec 2026 (T+90)
- 42 shares@ US$73.310.0000% mcap0.6% of flowCommon Shares (2330.TW)SEC:0001046179-26-000519:0Canonical exit: 5 Nov 2026 (T+90)
- 7 shares@ US$73.310.0000% mcap0.1% of flowCommon Shares (2330.TW)SEC:0001046179-26-000519:1Canonical exit: 5 Nov 2026 (T+90)
- 1,000 shares@ US$73.060.0000% mcap13.8% of flowCommon Shares (2330.TW)SEC:0001046179-26-000465:0Canonical exit: 1 Nov 2026 (T+90)
- 10 shares@ US$390.000.0000% mcap0.7% of flowAmerican Depositary Shares (TSM)SEC:0001046179-26-000461:0Canonical exit: 26 Oct 2026 (T+90)
- 5 shares@ US$390.000.0000% mcap0.4% of flowAmerican Depositary Shares (TSM)SEC:0001046179-26-000461:1Canonical exit: 26 Oct 2026 (T+90)
- 1,000 shares@ US$67.970.0000% mcap13.0% of flowCommon Shares (2330.TW)SEC:0001046179-26-000461:2Canonical exit: 26 Oct 2026 (T+90)
- 1,000 shares@ US$74.130.0000% mcap14.2% of flowCommon Shares (2330.TW)SEC:0001046179-26-000457:0Canonical exit: 19 Oct 2026 (T+90)
- 10 shares@ US$405.000.0000% mcap0.8% of flowAmerican Depositary Shares (TSM)SEC:0001046179-26-000457:1Canonical exit: 18 Oct 2026 (T+90)
- 1,000 shares@ US$73.980.0000% mcap14.2% of flowCommon Shares (2330.TW)SEC:0001046179-26-000457:2Canonical exit: 19 Oct 2026 (T+90)
- 1,000 shares@ US$74.440.0000% mcap14.2% of flowCommon Shares (2330.TW)SEC:0001046179-26-000457:3Canonical exit: 19 Oct 2026 (T+90)
- 1,000 shares@ US$74.750.0000% mcap14.3% of flowCommon Shares (2330.TW)SEC:0001046179-26-000457:4Canonical exit: 19 Oct 2026 (T+90)
- 40 shares@ US$76.620.0000% mcap0.6% of flowCommon Shares (2330.TW)SEC:0001046179-26-000435:0Canonical exit: 5 Oct 2026 (T+90)
- 6 shares@ US$76.620.0000% mcap0.1% of flowCommon Shares (2330.TW)SEC:0001046179-26-000435:1Canonical exit: 5 Oct 2026 (T+90)
- 10 shares@ US$386.000.7% of flowAmerican Depositary Shares (TSM)SEC:0001046179-26-000209:0Canonical exit: 27 Jul 2026 (T+90)
- 5 shares@ US$390.000.4% of flowAmerican Depositary Shares (TSM)SEC:0001046179-26-000209:1Canonical exit: 27 Jul 2026 (T+90)
- 5 shares@ US$390.0025.1% of flowAmerican Depositary Shares (TSM)SEC:0001046179-26-000209:2Canonical exit: 27 Jul 2026 (T+90)
- 53 shares@ US$57.870.6% of flowCommon Shares (2330.TW)SEC:0001046179-26-000191:0Canonical exit: 8 Jul 2026 (T+90)
- 9 shares@ US$57.870.1% of flowCommon Shares (2330.TW)SEC:0001046179-26-000191:1Canonical exit: 8 Jul 2026 (T+90)
- 1,000 shares@ US$55.9310.6% of flowCommon Shares (2330.TW)SEC:0001046179-26-000122:0Canonical exit: 20 Jun 2026 (T+90)
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