UMC Sets NT$130.7 Conversion Price for $492M Convertible Bond, Announces Capital Reduction
UMC has more than doubled off its 52-week low of $6.56.
Summary
UMC announced the final conversion price for its $492 million convertible bond at NT$130.7 per share, a capital reduction from RSA cancellation, and July insider trading disclosures including a 1.9 million share sale by SVP Chitung Liu.
Key Events · Financing and Capital Events · UMC
-
Convertible Bond Conversion Price Set
The conversion price for the 2nd domestic unsecured convertible corporate bond is now set at NT$130.7 per share, a premium rate of 104.98% over the base price of NT$124.5. This is lower than the NT$146 conversion price announced on July 30, 2026.
-
Capital Reduction Completed
A capital reduction stemming from the cancellation of restricted stock awards has been completed, lowering paid-in capital from NT$125,769,848,700 to NT$125,700,938,990 and shares outstanding from 12,546,433,870 to 12,539,542,899. Book value per share edged up from NT$35.38 to NT$35.40.
-
Insider Trading Disclosures
Senior Vice President Chitung Liu sold 1,900,000 shares in July 2026, reducing his holdings from 4,012,917 to 2,112,917 shares. Separately, Senior Vice President G C Hung pledged 1,200,000 shares.
-
Prior Disclosure Context
The convertible bond issuance was previously announced on June 3, 2026, and the initial conversion price of NT$146 was set on July 30, 2026. The CFO's sale of 1.9 million shares was reported on July 13, 2026.
Analysis · UMC · Manufacturing
The final conversion price for UMC's $492 million convertible bond has been set at NT$130.7 per share, representing a 4.98% premium over the base price of NT$124.5. This marks a downward revision from the NT$146 conversion price announced on July 30, which carried a 20% premium. In a separate move, the company completed a capital reduction by canceling restricted stock awards, trimming shares outstanding by approximately 6.9 million shares and nudging book value per share higher. Insider activity also drew attention: Senior Vice President Chitung Liu sold 1.9 million shares in July, aligning with the previously reported CFO sale of 1.9 million shares for $12.3 million on July 13. The filing further discloses updated insider holdings and a new pledge of 1.2 million shares by Senior Vice President G C Hung.
How filings like this one have moved
In the 30 days to Oct 19, 2026, 29.4% of the 1386 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.50%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, UMC was trading at $19.10 on NYSE in the Manufacturing sector, with a market capitalization of approximately $48.7B. The 52-week trading range was $6.56 to $28.96. This filing was assessed with neutral market sentiment and an importance score of 7 out of 10.