Stock research log
$TSM Insider Trading
Taiwan Semiconductor Manufacturing Company Limited
13
Alerts Listed
1
Insider Buys 30d
0
Insider Sells 30d
This page is InsiderWatch’s research log for TSM: the alerts we sent on this stock, timestamped, plus recent insider buying and selling reported to the SEC on Form 4.
Price and Our Alerts
$TSM price
Daily closing prices
3M change
-10.3%
1Y high
$485.80
1Y low
$275.06
Our alerts
13
in this window
Prices from public market data and may be delayed. Markers show the days our alerts on this stock fired. Not investment advice.
Our Alerts on $TSM
| Sent (ET) | Call | Alert |
|---|---|---|
| Oct 26, 11:39 PM | NEUTRAL | TSMC reportedly plans up to 20% packaging price hike |
| Oct 16, 9:18 AM | NEUTRAL | TSMC posts record quarter on AI chip demand |
| Oct 8, 2:45 AM | NEUTRAL | TSMC third-quarter sales beat estimates on AI demand |
| Sep 27, 11:33 PM | NEUTRAL | TSMC ramping 2nm capacity on AI demand |
| Sep 24, 8:45 PM | NEUTRAL | TSMC plans 3-6% wafer price hikes for 2027 |
| Sep 15, 10:58 AM | NEUTRAL | TSMC August revenue jumps 53% on AI chip demand |
| Sep 11, 5:22 PM | NEUTRAL | TSMC August sales hit record, up 53% |
| Sep 11, 9:14 AM | NEUTRAL | TSMC record August sales confirm AI chip demand |
| Sep 10, 1:36 AM | NEUTRAL | TSMC August revenue jumps 53% to record high |
| Sep 8, 4:55 AM | NEUTRAL | TSMC, Samsung to adopt ASML's newest EUV tools |
| Sep 4, 6:31 AM | BULLISH | Insider cluster keeps buying Taiwan Semiconductor stock |
| Aug 24, 2:35 AM | NEUTRAL | Xiaomi taps TSMC 3nm for new in-house Xring chip |
| Aug 20, 7:43 AM | BULLISH | Insiders keep buying TSMC stock, six purchases in a month |
Every alert we sent on TSM is listed after a short delay, in the order it went out. The call shown is the one in the alert as sent.
Recent Insider Activity
Open-market buys and sells in TSM by the company’s own officers, directors, and large holders, as reported to the SEC on Form 4 in roughly the last 30 days. New to the filing? Read what a Form 4 is and what the transaction codes mean.
Daily buy vs sell dollars
Open-market insider filings that passed the significance gates, last 30 days
Bought
$71K
30 days
Sold
$0
30 days
Net flow
+$71K
buying leads
Active days
1
with gated filings
| Filed (ET) | Insider | Action | Value |
|---|---|---|---|
| Nov 3 | Yuan LipenVice President | BUY | $71k |
| Sep 4 | Fang Shu-HuaSVP and GC | BUY | $154k |
| Aug 20 | Yuan LipenVice President | BUY | $174k |
| Aug 4 | Tien Bor-ZenVice President | BUY | $73k |
| Jul 30 | Tien Bor-ZenVice President | BUY | $74k |
| Jul 23 | Tien Bor-ZenVice President | BUY | $301k |
| Jul 22 | Lin Shyue-ShyhVice President | BUY | $147k |
| Jul 21 | Lin Shyue-ShyhVice President | BUY | $215k |
Sourced from public SEC Form 4 filings. Buys shown are open-market purchases; routine grants and plan sales are filtered out before a trade reaches this log.
Congress Trading in $TSM
Members of Congress who disclosed trades in TSM under the STOCK Act since we began tracking. Each name links to that member’s full page. Amounts are the disclosed ranges (see how the ranges work) and filings can arrive up to 45 days after the trade.
| Member | Action | Amount |
|---|---|---|
| Cleo FieldsHouse | BUY | $1,001 - $15,000 |
| Gilbert CisnerosHouse | BUY | $1,001 - $15,000 |
| Richard W. AllenHouse | BUY | $1,001 - $15,000 |
| Cleo FieldsHouse | BUY | $1,001 - $15,000 |
| Richard W. AllenHouse | BUY | $1,001 - $15,000 |
| Cleo FieldsHouse | BUY | $1,001 - $15,000 |
| Julia LetlowHouse | BUY | $1,001 - $15,000 |
| Richard W. AllenHouse | BUY | $1,001 - $15,000 |
| Gilbert CisnerosHouse | BUY | $1,001 - $15,000 |
| Gilbert CisnerosHouse | BUY | $100,001 - $250,000 |
| Cleo FieldsHouse | BUY | $1,001 - $15,000 |
| Gilbert CisnerosHouse | SELL | $1,001 - $15,000 |
Disclosed amounts are ranges. Filing and trade dates, who in the household traded, and full histories are part of the subscriber dashboard.
See the research log across all stocks, this week’s insider buying, or the congress trading tracker.
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