Ku Yao-Ching
VP
Ku Yao-Ching has filed 5 SEC Form 4 filings (5 transaction rows) across 1 company, with disclosures dating back to 2026. 5 of those filings fall inside the rolling window. Most recent filing: Oct 8, 2026.
On the most recent filing, Ku Yao-Ching is listed as VP at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD. Inside the rolling window, Ku Yao-Ching reported 5 open-market purchases totaling $18K in TSM and no open-market sales. The largest disclosed transaction in the window is a purchase of 46 TSM shares on Oct 7, 2026, worth $4K.
Companies traded
Other insiders at TSM
Insider Buying
$18K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Ku Yao-Ching made?
Ku Yao-Ching has filed 5 SEC Form 4 filings (5 transaction rows) across 1 company since 2026.
Which companies does Ku Yao-Ching trade?
Ku Yao-Ching has filed SEC Form 4 disclosures for 1 company, including TSM.
When was Ku Yao-Ching's most recent SEC Form 4 filing?
Ku Yao-Ching's most recent SEC Form 4 filing on Tracefour is dated Oct 8, 2026.
What is Ku Yao-Ching's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Ku Yao-Ching is listed as VP.
What is Ku Yao-Ching's total buy and sell value in the current window?
Inside the rolling retention window, Ku Yao-Ching bought $18K and sold $0 based on SEC Form 4 filings.
What was Ku Yao-Ching's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 46 TSM shares on 2026-10-07, worth $4K, per SEC Form 4 filings.