Total buying$121k31 buys
TSM
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
NYSETechnologySemiconductors & Related Devices
Insider activity for last month from 09/19 to 10/19.
How these metrics are calculated
Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total selling$00 sells
Net open-market+$121kBuying minus selling
Active insiders30Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Oct 08, 2026
Open-market transaction mix · 31 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 0 | 0 | $0 | $0 | $0 |
| Oct 2026 | 31 | 0 | 0 | $121k | $0 | $121k |
Distinct insiders active
Reporting-owner CIKs by month · peak Oct 2026 (30)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- CY+$5.3k
- HY+$4.8k
- FS+$4.2k
- HK+$4.1k
- CM+$4.0k
TSM transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.| Company | Insider | Activity | Disclosed value | Filed (ET) |
|---|---|---|---|---|
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Hou Yung-ChinSDCC | P · buySEC filing ↗ | $4.76kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Hsu Kuo-ChinVP | P · buySEC filing ↗ | $4.12kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | He JunVP | P · buySEC filing ↗ | $3.41kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Chuang Tzu-SouVP | P · buySEC filing ↗ | $3.65kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Cao MinVP | P · buySEC filing ↗ | $4.04kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Chin Yung-PeiECC | P · buySEC filing ↗ | $5.31kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Chang Tzonz-ShengSVP | P · buySEC filing ↗ | $4.04kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Fang Shu-HuaSG | P · buySEC filing ↗ | $4.20kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Chuang JuipingVP | P · buySEC filing ↗ | $3.65kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Chen Pei-HungVP | P · buySEC filing ↗ | $3.41kView disclosure → | |
TSMTAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Chen Chih-HoCTRL | P · buySEC filing ↗ | $2.46kView disclosure → |
Filing-only signals
Deterministic matches in the selected period
Filing detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period31transactionstxns
- P · Open-market buys · dominant31 · 100%
Activity by reported role
A joint filing can contribute to multiple rolesVP17
SVP5
ECC2
SDCC2
CHAIR1
CTRL1
SC1
SG1
VC1
Reported Holdings After
Separated by insider, security, and ownership type
Chen Chih-HoCommon Shares (2330.TW) · Indirect · By ESPP Trust
233Oct 07, 2026
Chen Pei-HungCommon Shares (2330.TW) · Indirect · By ESPP Trust
1,438Oct 07, 2026
Chuang JuipingCommon Shares (2330.TW) · Indirect · By ESPP Trust
48Oct 07, 2026
Fang Shu-HuaCommon Shares (2330.TW) · Indirect · By ESPP Trust
6,761Oct 07, 2026
Chang Tzonz-ShengCommon Shares (2330.TW) · Indirect · By ESPP Trust
52Oct 07, 2026
Chin Yung-PeiCommon Shares (2330.TW) · Indirect · By ESPP Trust
8,573Oct 07, 2026
Cao MinCommon Shares (2330.TW) · Indirect · By ESPP Trust
6,824Oct 07, 2026
Chuang Tzu-SouCommon Shares (2330.TW) · Indirect · By ESPP Trust
47Oct 07, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 19 → Oct 19
LessMore
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD?
Yuan Lipen, Yeap Choh Fei, Zhang Kevin Xiaoqiang, Yoo Chue-San, Wu Shien-Yang, Wei Che-Chia, Wu Yi-Huang, Wang Ying-Lang, Mii Yuh-Jier, Tien Bor-Zen, Lu Chin-Sheng, Lu Lee-Chung.
When was the latest reported open-market purchase?
Yuan Lipen reported a buy on Oct 07, 2026 valued at $3.17k. Read the SEC filing.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
Net open-market buying in the selected period was $121,466.70. This describes filed transactions, not a bullish rating.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.