Filing: Berkshire Hathaway cut its holdings of TSMC's American depositary shares by 86% last quarter to 8.29M, valued at $617.7M; TSMC's stock drops 3.5%+
Warren Buffett slashed his holding of Taiwan Semiconductor Manufacturing Co. just months after disclosing a major stake …
Context & Ripple Effects
Berkshire Hathaway had only recently disclosed a roughly 60.1M-ADS TSMC position, making the reduction to 8.29M a sharp reversal rather than routine portfolio trimming. The filing-driven selloff shows that Berkshire’s ownership changes had become a near-term market signal for TSMC.
The subsequent quarter’s filings reported that Berkshire exited its remaining TSMC shares, while Tiger Global and Coatue added to their positions, separating Berkshire’s decision from a uniform institutional retreat.
First-order effects
- Berkshire cuts its direct exposure to TSMC from the previously disclosed 60.1M ADSs to 8.29M, and TSMC shares fall more than 3.5% after the filing.
- TSMC’s remaining shareholders must absorb a large, highly visible change in ownership, while Berkshire retains only a much smaller position valued at $617.7M.
Second-order effects
- Tiger Global and Coatue’s later additions to TSMC indicate that Berkshire’s sale creates room for other institutional investors to take a different view on the company.
- The immediate stock reaction reinforces regulatory filings as a catalyst for TSMC trading, particularly when they reveal an abrupt reversal by Berkshire.
Third-order effects
- Berkshire’s eventual full TSMC exit suggests that prominent institutional stakes can be transient even after a large initial disclosure, shifting attention from entry announcements to the durability of ownership.
- As investors parse subsequent filings alongside Berkshire’s later reductions in Apple, HP and Amazon, portfolio concentration and rebalancing become a recurring lens for interpreting Berkshire’s technology-equity positions.
The trend: High-profile Berkshire disclosures are increasingly treated as tradable signals, but later filings show that an initial large stake does not necessarily represent a durable endorsement.