Mailing Address 8F, NO.68, SEC. 1, NEIHU RD., TAIPEI F5 11493
Business Address 8F, NO.68, SEC. 1, NEIHU RD., TAIPEI F5 11493 886-2-2658-9168
UNITED MICROELECTRONICS CORP CIK#: 0001033767 (see all company filings)

SIC: 3674 - SEMICONDUCTORS & RELATED DEVICES
State location: F5 | State of Inc.: F5 | Fiscal Year End: 1231
(CF Office: 04 Manufacturing)

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Items 1 - 40  0001033767 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-25-052667 (34 Act)  Size: 99 KB
2025-04-10 001-15128
25826437
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-25-048029 (34 Act)  Size: 43 KB
2025-04-01 001-15128
25796484
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0001292814-25-000981 (34 Act)  Size: 3 MB
2025-03-20 001-15128
25754347
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-25-036809 (34 Act)  Size: 101 KB
2025-03-11 001-15128
25725787
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-25-027306 (34 Act)  Size: 110 KB
2025-02-26 001-15128
25665911
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-25-017442 (34 Act)  Size: 94 KB
2025-02-11 001-15128
25607533
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-25-006966 (34 Act)  Size: 55 KB
2025-01-21 001-15128
25540260
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-25-004454 (34 Act)  Size: 103 KB
2025-01-13 001-15128
25524475
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-140678 (34 Act)  Size: 45 KB
2024-12-27 001-15128
241582168
S-8  Documents Securities to be offered to employees in employee benefit plans
Acc-no: 0000929638-24-004308 (33 Act)  Size: 336 KB
2024-12-26 333-284047
241580260
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-137593 (34 Act)  Size: 46 KB
2024-12-18 001-15128
241557509
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-135203 (34 Act)  Size: 90 KB
2024-12-11 001-15128
241540029
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-130416 (34 Act)  Size: 34 KB
2024-11-25 001-15128
241491776
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-126713 (34 Act)  Size: 85 KB
2024-11-14 001-15128
241456885
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0001292814-24-004186 (34 Act)  Size: 2 MB
2024-11-13 001-15128
241450956
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-118560 (34 Act)  Size: 58 KB
2024-10-30 001-15128
241407204
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-116090 (34 Act)  Size: 37 KB
2024-10-22 001-15128
241384640
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-113623 (34 Act)  Size: 117 KB
2024-10-09 001-15128
241361449
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-105690 (34 Act)  Size: 88 KB
2024-09-12 001-15128
241293839
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-098276 (34 Act)  Size: 85 KB
2024-08-19 001-15128
241218309
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0001292814-24-003066 (34 Act)  Size: 2 MB
2024-08-09 001-15128
241190280
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-088210 (34 Act)  Size: 64 KB
2024-07-31 001-15128
241159711
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-084059 (34 Act)  Size: 80 KB
2024-07-17 001-15128
241120926
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-072240 (34 Act)  Size: 82 KB
2024-06-12 001-15128
241037446
SD  Documents Specialized disclosure report
Acc-no: 0001193125-24-150743 (34 Act)  Size: 805 KB
2024-05-31 001-15128
241007548
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-066232 (34 Act)  Size: 118 KB
2024-05-30 001-15128
241000615
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0001193125-24-145408 (34 Act)  Size: 40 KB
2024-05-23 001-15128
24975168
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0001292814-24-002052 (34 Act)  Size: 2 MB
2024-05-14 001-15128
24941296
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-047909 (34 Act)  Size: 51 KB
2024-04-25 001-15128
24872742
20-F  Documents   Interactive Data Annual and transition report of foreign private issuers [Sections 13 or 15(d)]
Acc-no: 0001193125-24-111429 (34 Act)  Size: 24 MB
2024-04-25 001-15128
24872724
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-047232 (34 Act)  Size: 62 KB
2024-04-24 001-15128
24866615
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-044587 (34 Act)  Size: 105 KB
2024-04-16 001-15128
24846055
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-040647 (34 Act)  Size: 35 KB
2024-04-03 001-15128
24816772
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-035628 (34 Act)  Size: 67 KB
2024-03-25 001-15128
24776851
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0001292814-24-000982 (34 Act)  Size: 2 MB
2024-03-25 001-15128
24776816
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-035050 (34 Act)  Size: 41 KB
2024-03-22 001-15128
24773072
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-020649 (34 Act)  Size: 141 KB
2024-02-27 001-15128
24682202
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-019717 (34 Act)  Size: 68 KB
2024-02-26 001-15128
24673455
SC 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0001086364-24-006326 (34 Act)  Size: 13 KB
2024-02-05 005-60399
24594681
6-K  Documents Report of foreign issuer [Rules 13a-16 and 15d-16]
Acc-no: 0000950170-24-009128 (34 Act)  Size: 46 KB
2024-01-31 001-15128
24580484