Taiwan Semiconductor Manufacturing Co Ltd
TSMWF- Exchange
- OTC
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001046179
In the last 90 days, Taiwan Semiconductor Manufacturing Co Ltd insiders filed 94 open-market purchases and 0 sales; 1 institution reported holding it in 13F filings for Q2 2026, worth $1.13M in total; no superinvestor holds it.
Other share classesTSM
Holders of 5% or more of TSMWF
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Taiwan Semiconductor Manufacturing Co Ltd, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G | 5.10%1.33B shares | +0.70 ppfrom 4.40% | Apr 25, 20252 filings | Oct 27, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
2 Schedule 13D and 13G filings on Taiwan Semiconductor Manufacturing Co Ltd, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Oct 27, 20264:21 PM ET | BlackRock, Inc. | 13G | 5.10%1.33B shares | +0.70 ppfrom 4.40% | Sep 30, 2026 | SEC |
| Apr 25, 20255:38 PM ET | BlackRock, Inc. | 13G/A | 4.40%1.14B shares | –Below 5% | Mar 31, 2025 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Taiwan Semiconductor Manufacturing Co Ltd shares.
No Form 144 notices for Taiwan Semiconductor Manufacturing Co Ltd are on file.