UMC · UNITED MICROELECTRONICS CORP

UMC

NYSE

UNITED MICROELECTRONICS CORP

Latest disclosureSeptember 22, 2026

Insider buying score: 0/100
Qualifying buys · 30d: $0

0 purchases · 5 sales

Insider trades

Filters

7 transactions · Newest trade first

30-day filing activity

Accepted in the last 30 daysNo qualifying insider buying. Sales: $230.43M by 2 insiders.

Filing activity uses public SEC acceptance timestamps. The qualifying-buys metric above uses trade dates at the snapshot cutoff.

Why this Signal Score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

Sources and coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0001033767
Latest public acceptance: Sep 22, 2026, 10:11 AM UTC
Score calculated: Oct 12, 2026, 04:38 PM UTC
Trade-window snapshot cutoff: Oct 12, 2026, 04:38 PM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Score is not a probability of profit or a recommendation to trade.