Key Highlights
- Taiwan Semiconductor disposed of 1.11 million Arm shares at $207.65 apiece, generating $231 million in proceeds
- The transaction affected retained earnings by $174 million
- TSMC’s initial stake came from approximately $100 million invested during Arm’s 2023 IPO at $51 per share
- Earlier in 2024, the company had divested 850,000 Arm shares at $119.47, bringing in roughly $102 million
- Arm (ARM) shares tumbled 7.98% after the disclosure; TSMC (TSM) declined 3.12%
Taiwan Semiconductor Manufacturing Company has concluded its investment in Arm Holdings by divesting its final 1.11 million shares on April 28-29 at a price of $207.65 per share, collecting $231 million in total proceeds.
Taiwan Semiconductor Manufacturing Company Limited, TSM
The chipmaker executed the sale through its subsidiary entity, TSMC Partners, according to a Wednesday filing submitted to the Taiwan Stock Exchange.
Retained earnings reflected a $174 million impact from the transaction. TSMC verified that its Arm shareholdings now stand at zero after completing the disposal.
The semiconductor manufacturer’s entry into Arm came during the September 2023 initial public offering, when it committed approximately $100 million at the $51 offering price. The company participated alongside other strategic investors supporting the British chip architecture firm’s market debut.
Historical ties between these two technology companies extend beyond the IPO. TSMC had previously evaluated acquiring Arm completely when SoftBank, the parent company, sought potential buyers earlier in the decade. The Taiwan-based manufacturer withdrew from consideration after SoftBank negotiated terms with Nvidia, though regulatory hurdles terminated that agreement in 2022.
The Financial Performance of TSMC’s Arm Investment
Analyzing the investment strictly by returns, TSMC achieved favorable results from its Arm position. Arm shares surged well beyond double their IPO valuation, creating opportunities for profitable exits.
The company had begun reducing its holdings during 2024, offloading 850,000 shares at $119.47 per share for approximately $102 million. When combined with the recent $231 million transaction, TSMC has realized total proceeds of roughly $333 million from its Arm holdings.
Measured against the original investment of around $100 million, the semiconductor giant generated more than triple its initial capital across both divestment events.
How Investors Responded
Market participants reacted decisively to the disclosure. Arm stock retreated 7.98% on Tuesday. When a prominent strategic backer completely liquidates its position, investor sentiment often turns cautious regardless of whether the motivation is purely financial.
TSM equity declined 3.12%, settling at $392.34. Meanwhile, TSMC’s domestically-traded shares on Taiwan’s exchange advanced 3.66%.
TSMC’s regulatory filing characterized the move as an equity investment disposal, offering no additional context regarding the decision’s timing.
Arm equity faced downward momentum prior to the announcement. The revelation that a major IPO supporter had completely exited intensified selling pressure.
Following Wednesday’s disclosure, TSMC maintains no ownership stake in Arm Holdings.

