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UNITED MICROELECTRONICS CORP

UMC Net selling
CIK 0001033767 #591 in the set updated 21 Sep 2026
Bought (120 mo)
$0.00
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$524.80M
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$524.80M
4 of 4 sales
Net
−$524.80M
−$524.80M against sales at will

By person

2 insiders · 4 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Liu Chitung
CFO & SVP
—
$523.09M (3)
−$523.09M
3,789,757
0.0301%
$549.51M
−48.0%
HU CHE-JEN
Vice President
—
$1.71M (1)
−$1.71M
3,214,080
0.0255%
$466.04M
−0.3%

Individual transactions

4
Insider
Date
Role
Action
Shares
Price
Amount
Liu Chitung
17 Sep 2026
CFO & SVP
Sell
400,000
$145.00
$58.00M
Liu Chitung
16 Sep 2026
CFO & SVP
Sell
1,200,000
$142.33
$170.80M
Liu Chitung
13 Jul 2026
CFO & SVP
Sell
1,900,000
$154.89
$294.29M
HU CHE-JEN
30 Jun 2026
Vice President
Sell
10,000
$171.30
$1.71M

What was left out

Form 4 filings counted 4
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 4
Transactions with no price 0
Shares from compensation/vesting 2,000,000
History held since 30 Jun 2026