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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•301 filings

TSM

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

Net purchases of $247.1K over the last 3 months

2 buyers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

+$247,083

2 buyers · 0 sellers

12-month purchases

$2,312,561

7 distinct insiders

12-month sales

$13,969,761

2 distinct insiders

Highlighted alerts

38

0 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

100
Raw transactions
Everything returned by the filing
38
Voluntary view
P/S trades after deterministic checks
97
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
Code
P
Shares
40
Price
$79.39
Footnotes
3

Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer pursuant to terms predetermined by the issuer. The price was translated from the average purchase price of NT$2,524.2277 in New Taiwan dollars, at the rate of NT$31.795 to US$1. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").

Raspberry interpretation
Informational — no alert

Reason: plan_purchase.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

38 transactions

Yuan Lipen

VP

PurchaseAlert
Shares
1,000
Price
$73.77
Value
$73,770
Open SEC filing

Yuan Lipen

VP

PurchaseAlert
Shares
350
Price
$73.58
Value
$25,753
Open SEC filing

Yuan Lipen

VP

PurchaseAlert
Shares
1,000
Price
$74.50
Value
$74,500
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$73.06
Value
$73,060
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$67.97
Value
$67,970
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
5
Price
$390.00
Value
$1,950
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
10
Price
$390.00
Value
$3,900
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$74.75
Value
$74,750
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$74.44
Value
$74,440
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$73.98
Value
$73,980
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$74.13
Value
$74,130
Open SEC filing

Lin Shyue-Shyh

VP

PurchaseAlert
Shares
1,000
Price
$74.13
Value
$74,130
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
10
Price
$405.00
Value
$4,050
Open SEC filing

Lin Shyue-Shyh

VP

PurchaseAlert
Shares
1,000
Price
$72.65
Value
$72,650
Open SEC filing

Lin Shyue-Shyh

VP

PurchaseAlert
Shares
1,000
Price
$71.94
Value
$71,940
Open SEC filing

Lin Shyue-Shyh

VP

PurchaseAlert
Shares
1,000
Price
$71.32
Value
$71,320
Open SEC filing

Lin Shyue-Shyh

VP

PurchaseAlert
Shares
1,000
Price
$72.10
Value
$72,100
Open SEC filing

Chen Chih-Ho

Controller

SaleAlert
Shares
50
Price
$75.22
Value
$3,761
Open SEC filing

Chen Chih-Ho

Controller

PurchaseAlert
Shares
50
Price
$74.60
Value
$3,730
Open SEC filing

Fang Shu-Hua

SVP and GC

PurchaseAlert
Shares
1,000
Price
$77.09
Value
$77,090
Open SEC filing

Fang Shu-Hua

SVP and GC

PurchaseAlert
Shares
1,000
Price
$77.09
Value
$77,090
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$75.70
Value
$75,700
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$76.64
Value
$76,640
Open SEC filing

Yuan Lipen

VP

PurchaseAlert
Shares
1,000
Price
$79.19
Value
$79,190
Open SEC filing

Yuan Lipen

VP

PurchaseAlert
Shares
1,000
Price
$75.26
Value
$75,260
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
7
Price
$400.00
Value
$2,800
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
10
Price
$391.81
Value
$3,918
Open SEC filing

Chuang Tzu-Sou

VP

SaleAlert
Shares
200,000
Price
$69.83
Value
$13,966,000
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$69.83
Value
$69,830
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$69.98
Value
$69,980
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
5
Price
$390.00
Value
$1,950
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
5
Price
$390.00
Value
$1,950
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
10
Price
$386.00
Value
$3,860
Open SEC filing

BURNS URSULA M

Director

PurchaseAlert
Shares
1,000
Price
$322.05
Value
$322,050
Open SEC filing

Lin Shyue-Shyh

VP

PurchaseAlert
Shares
3,000
Price
$54.72
Value
$164,160
Open SEC filing

Lin Shyue-Shyh

VP

PurchaseAlert
Shares
2,000
Price
$55.63
Value
$111,260
Open SEC filing

Yeap Choh Fei

SVP

PurchaseAlert
Shares
1,000
Price
$55.78
Value
$55,780
Open SEC filing

Tien Bor-Zen

VP

PurchaseAlert
Shares
1,000
Price
$55.93
Value
$55,930
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.