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$UMC
$19.18 +$0.29 (1.54%) Close

Insider Transactions

What United Microelectronics Corp's executives and directors are doing with their own shares, from SEC Form 3/4/5 filings — separating what the filings state (awards, withholding, disclosed plans) from what only the pattern of dates shows.

Insider trades

3 months 12 months
Open-market buys 0 0
Sells 3 5
Total trades 5 7

Shares traded

3 months 12 months
Acquired 1,000,000 1,000,000
Disposed 2,600,000 4,510,000
Net activity −1,600,000 −3,510,000

Common stock only — 1 reported trade in the last 12 months is in a security these totals do not cover.

See the story behind these numbers

View rich charts and dive into the patterns of specific insiders — who is accumulating, who is winding down, and which sale explanations the filings actually support.

Open-market buyer Disclosed 10b5-1 Heavy discretionary Sign up free

All transactions

Insider Relation Date Transaction Shares Price Value Shares held
Lin Jen-tsung Vice President Sep 22 Open-market sale · S −10,000 $163.00 −$1.63M 1,172,140
Liu Chitung CFO & SVP Sep 17 Open-market sale · S −400,000 $145.00 −$58M 2,639,757
Liu Chitung CFO & SVP Sep 16 Open-market sale · S −1,200,000 $142.33 −$171M 3,039,757
Liu Chitung CFO & SVP Sep 07 Other Transaction · J −1,000,000 — — 1,000,000
Liu Chitung CFO & SVP Sep 07 Other Transaction · J +1,000,000 — — 4,322,917
Liu Chitung CFO & SVP Jul 13 Open-market sale · S −1,900,000 $154.89 −$294M 3,322,917
Hu Che-jen Vice President Jun 30 Open-market sale · S −10,000 $171.30 −$1.71M 3,214,080

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