UMC UNITED MICROELECTRONICS CORP

NEUTRAL Impact: 2/10 6-K
Horizon days Filed May 12, 2026 Processed 1mo ago SEC 0001193125-26-218058
Notable filing: 6-K
Latest settled — T+5d
UMC ▲ +6.60% at T+5d
NEUTRAL call ✓ call won +6.60% · α vs SPY +6.52% · entry $16.06 → $17.12
Next anchor: T+20d due 5d ago
Last close $21.63 (close Jun 12) · +34.68% from $16.06 entry
Entry anchored
May 11, 03:59 PM ET
via Databento tick
T+1d
-0.87%
call -0.87% · α -1.45%
$15.92
settled 5w ago
T+5d
+6.60%
call +6.60% · α +6.52%
$17.12
settled 27d ago
T+20d
call — · α —
due 5d ago
T+60d
call — · α —
in 7w

Price Chart

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Executive Summary

UMC filed a 6-K announcing that cumulative share repurchases exceeded NTD$300 million in value as of May 12, 2026. The company repurchased 1,919,000 shares at an average price of NTD$101.55, with total holdings of 10,251,000 shares (0.08% of outstanding). This is a routine buyback update with no material impact.

Actionable Insight

This is a routine update on cumulative share repurchases. The amount is negligible relative to UMC's $39.2B market cap. No material impact on operations or financials expected. Continue to monitor next quarterly report for earnings trends.

Key Facts

  • Cumulative share repurchases exceeded NTD$300 million threshold on May 12, 2026.
  • Repurchased 1,919,000 common shares at average price NTD$101.55.
  • Cumulative held shares: 10,251,000, representing 0.08% of total issued shares.
  • Total monetary amount of current repurchase: NTD$194,882,342.

Financial Impact

Cumulative share repurchases of NTD$194.9M (~$6M) as of May 12, 2026, representing 0.08% of outstanding shares.

share countbuyback

Market Snapshot

Exchange
NYSE
Sector
Semiconductors & Related Devices
Analyst Consensus
31% bullish (32 analysts)

Documents Analyzed

This report is based on 5 SEC documents filed with EDGAR.

DocumentAccession Number
6-K Filing (Primary)0001193125-26-218058
Document: umc-ex99_1.htm0001193125-26-218058
Document: 0001193125-26-218058-index-headers.html0001193125-26-218058
Document: 0001193125-26-218058-index.html0001193125-26-218058
Document: 0001193125-26-218058.txt0001193125-26-218058
11 reports for UMC
Performance horizon
Filters
Rows
Reports for UMC — sortable, filterable
Type Now
Jun 5, 2026
9d ago
6-K
NEUTRAL ★ 3/10
$20.74 awaiting T+1awaiting T+1$21.63 (+4.29%)
Jun 3, 2026
11d ago
6-K
NEUTRAL ★ 5/10
$21.42 $20.79▼ −2.94%▼ −3.34%$21.63 (+0.98%)
May 27, 2026
18d ago
6-K
NEUTRAL ★ 3/10
$22.22 $22.68▲ +2.07%▲ +1.52%$21.63 (−2.66%)
May 15, 2026
4w ago
6-K
NEUTRAL ★ 2/10
$17.20 $17.12▼ −0.47%▼ −0.40%$21.63 (+25.76%)
May 13, 2026
4w ago
6-K
NEUTRAL ★ 2/10
$15.92 $17.13▲ +7.60%▲ +6.82%$21.63 (+35.87%)
May 12, 2026
4w ago
6-K
NEUTRAL ★ 2/10
$16.06 $15.92▼ −0.87%▼ −1.45%$21.63 (+34.68%)
May 8, 2026
5w ago
6-K
NEUTRAL ★ 3/10
$15.42 $15.59▲ +1.10%▲ +0.87%$21.63 (+40.27%)
May 7, 2026
5w ago
6-K
NEUTRAL ★ 2/10
$15.16 $15.42▲ +1.72%▲ +0.89%$21.63 (+42.68%)
Apr 21, 2026
7w ago
6-K
NEUTRAL ★ 2/10
$12.33 $12.71▲ +3.08%▲ +2.06%$21.63 (+75.43%)
Apr 15, 2026
8w ago
6-K
NEUTRAL ★ 3/10
$9.95 $10.62▲ +6.73%▲ +6.48%$21.63 (+117.39%)
Showing 10 of 11

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