Latest filingSep 02, 2026Most recent Form 4
TSM
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
NYSETechnologySemiconductors & Related Devices
Insider activity for last month from 08/03 to 09/03. 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 buying$17.4M3 buys
Total selling$00 sells
Net open-market+$17.4M22 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period24transactions
- A · Grants / awards · dominant21 · 88%
- P · Open-market buys3 · 13%
Activity by reported role
A joint filing can contribute to multiple roles24transactions
- VP · dominant11 · 46%
- SVP5 · 21%
- ECC2 · 8%
- SDCC2 · 8%
- CHAIR1 · 4%
- SC1 · 4%
- SG1 · 4%
- VC1 · 4%
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (21)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeYuan LipenCommon Shares (2330.TW) · Direct
7,000Aug 19, 2026
Yuan LipenCommon Shares (2330.TW) · Indirect · By Spouse
2,000Aug 18, 2026
Chuang JuipingCommon Shares (2330.TW) · Direct
247,913Sep 01, 2026
Cao MinCommon Shares (2330.TW) · Direct
520,760Sep 01, 2026
Fang Shu-HuaCommon Shares (2330.TW) · Direct
878,705Sep 01, 2026
Chang Tzonz-ShengCommon Shares (2330.TW) · Direct
157,519Sep 01, 2026
Chin Yung-PeiCommon Shares (2330.TW) · Direct
5,204,139Sep 01, 2026
Chuang Tzu-SouCommon Shares (2330.TW) · Direct
1,503,340Sep 01, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- YL+$174.0k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
TSM transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| TSM | Yuan Lipen | VP | buy | 350 | $2.57M | P | −0.5% | 08/20 | 08/18 | |
| TSM | Yuan Lipen | VP | buy | 1.00k | $7.37M | P | −0.5% | 08/20 | 08/19 | |
| TSM | Yuan Lipen | VP | buy | 1.00k | $7.45M | P | −0.5% | 08/20 | 08/18 |
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD?
Yeap Choh Fei, Yoo Chue-San, Wu Shien-Yang, Zhang Kevin Xiaoqiang, Wei Che-Chia, Mii Yuh-Jier, Wang Ying-Lang, Lu Lee-Chung, Lin Chris Horng-Dar, Lee Chun-Hsien, Hsu Kuo-Chin, Huang Jen-Chau.
When was the latest reported open-market purchase?
Yuan Lipen reported a buy on Aug 19, 2026 valued at $7.37M. 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 $174,023.00. 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.