United Microelectronics Corporation - Depositary Receipt (Common Stock)
DE ˙ DB ˙ US9108734057
20,00 € ↑1,40 (7,53%)
2026-06-01
AKTIENPREIS
SecurityDE:UMCB / United Microelectronics Corporation - Depositary Receipt (Common Stock)
InstitutionMillennium Management Llc
ManagerIsrael Englander
Latest Disclosed Ownership1,770,129 shares
Latest Disclosed Value $ 15,895,758
Millennium Management Llc ownership in UMCB / United Microelectronics Corporation - Depositary Receipt (Common Stock)

On May 15, 2026 - Millennium Management Llc filed a 13F-HR form disclosing ownership of 1,770,129 shares of United Microelectronics Corporation - Depositary Receipt (Common Stock) (DE:UMCB) valued at $13,098,955 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 695,399 shares of United Microelectronics Corporation - Depositary Receipt (Common Stock). This represents a change in shares of 154.55% during the quarter. The current value of the position is $35,402,580 USD.

Millennium Management Llc has a history of taking positions in derivatives of the underlying security (UMCB) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 83,900 of underlying shares valued at $753,422 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:UMCB / United Microelectronics Corporation - Depositary Receipt (Common Stock) Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,770,129 1,074,730 154.55 15,896 190.85 0.0066
2026-02-17 2025-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 695,399 383,488 122.95 5,466 131.18 0.0023
2025-11-14 2025-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 311,911 253,131 430.64 2,364 426.50 0.0010
2025-08-14 2025-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 58,780 -7,834,768 -99.26 450 -99.20 0.0002
2025-05-15 2025-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 7,893,548 -6,435,845 -44.91 56,439 -39.31 0.0300
2025-02-14 2024-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 14,329,393 13,880,446 3,091.78 92,998 2,360.24 0.0454
2024-11-14 2024-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 448,947 -306,079 -40.54 3,780 -42.85 0.0018
2024-08-14 2024-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 755,026 -1,602,308 -67.97 6,614 -65.32 0.0031
2024-05-15 2024-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 2,357,334 1,328,716 129.17 19,071 119.15 0.0081
2024-02-14 2023-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,028,618 896,139 676.44 8,702 830.70 0.0038
2023-11-14 2023-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 132,479 132,479 935 0.0005
2023-08-14 2023-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 0 -363,601 -100.00 0 -100.00
2023-05-15 2023-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 363,601 222,509 157.70 1,880 104.13 0.0011
2023-02-14 2022-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 141,092 -2,307,412 -94.24 921 -93.25 0.0005
2022-11-14 2022-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 2,448,504 448,891 22.45 13,638 0.75 0.0081
2022-08-15 2022-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,999,613 -120,652 -5.69 13,537 -29.99 0.0084
2022-05-16 2022-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 2,120,265 1,458,943 220.61 19,337 149.93 0.0103
2022-02-14 2021-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 661,322 -492,021 -42.66 7,737 -41.31 0.0039
2021-11-15 2021-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,153,343 1,153,343 13,183 0.0079
2021-08-16 2021-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 0 -356,532 -100.00 0 -100.00
2021-05-17 2021-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 356,532 325,928 1,064.98 3,248 1,158.91 0.0023
2021-02-16 2020-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 30,604 -875,607 -96.62 258 -94.06 0.0002
2020-11-16 2020-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 906,211 773,266 581.64 4,341 1,136.75 0.0053
2020-08-14 2020-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 132,945 92,728 230.57 351 303.45 0.0005
2020-05-14 2020-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 40,217 -1,072,873 -96.39 87 -97.08 0.0002
2020-02-14 2019-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,113,090 121,579 12.26 2,983 43.97 0.0037
2019-11-14 2019-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 991,511 697,755 237.53 2,072 219.26 0.0033
2019-08-15 2019-06-30 13F/A-1 UNITED MICROELECTRONICS SPON ADR NEW 910873405 293,756 -981,989 -76.97 649 -72.94 0.0010
2019-08-14 2019-06-30 13F DONEGAL GROUP CL A 910873405 25,580 -1,250,165 391
2019-05-14 2019-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,275,745 -644,967 -33.58 2,398 -30.25 0.0036
2019-02-15 2018-12-31 13F/A-1 UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,920,712 1,121,267 140.26 3,438 66.65 0.0054
2019-02-14 2018-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,920,712 3,438
2018-11-14 2018-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 799,445 -62,111 -7.21 2,063 -15.10 0.0025
2018-08-14 2018-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 861,556 -727,783 -45.79 2,430 -40.96 0.0032
2018-05-15 2018-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,589,339 1,253,697 373.52 4,116 413.22 0.0055
2018-02-14 2017-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 335,642 335,642 802 0.0011
2017-11-14 2017-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 0 -569,461 -100.00 0 -100.00
2017-08-14 2017-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 569,461 -265,701 -31.81 1,389 -13.83 0.0025
2017-05-15 2017-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 835,162 200,416 31.57 1,612 45.09 0.0030
2017-02-14 2016-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 634,746 -687,383 -51.99 1,111 -54.58 0.0023
2016-11-14 2016-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 1,322,129 1,322,129 0.00 2,446 0.0041
2016-08-15 2016-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 0 -97,493 -100.00 0 -100.00
2016-05-16 2016-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 97,493 64,989 199.94 203 232.79 0.0005
2016-02-16 2015-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 32,504 -445,579 -93.20 61 -92.12 0.0001
2015-11-16 2015-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 478,083 -397,517 -45.40 774 -56.88 0.0015
2015-08-14 2015-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 875,600 650,372 288.76 1,795 226.36 0.0034
2015-05-15 2015-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 225,228 41,937 22.88 550 32.21 0.0010
2015-02-17 2014-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 183,291 -162,933 -47.06 416 -39.62 0.0009
2014-11-14 2014-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 346,224 346,224 0.00 689 0.0017
2014-08-14 2014-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 0 -40,034 -100.00 0 -100.00
2014-05-15 2014-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 40,034 -4,427 -9.96 83 -8.79 0.0002
2014-02-14 2013-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW 910873405 44,461 44,461 91 0.0003
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 37,200 292 n/a n/a n/a
2025-08-14 2025-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 20,000 143 n/a n/a n/a
2024-05-15 2024-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 2,732,700 1.87 23,119 22.07 n/a n/a n/a
2023-11-14 2023-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW Call 2,682,500 0.00 18,938 -10.52 n/a n/a n/a
2023-08-14 2023-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW Call 2,682,500 1.13 21,165 -8.92 n/a n/a n/a
2023-05-15 2023-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 2,652,500 2.51 23,236 37.52 n/a n/a n/a
2023-02-14 2022-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 2,587,500 17.61 16,896 37.88 n/a n/a n/a
2022-11-14 2022-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW Call 2,200,000 214.29 12,254 158.58 n/a n/a n/a
2022-08-15 2022-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW Call 700,000 0.00 4,739 -25.77 n/a n/a n/a
2022-05-16 2022-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 700,000 6,384 n/a n/a n/a
2021-11-15 2021-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-08-16 2021-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW Call 500,000 0.00 4,725 3.73 n/a n/a n/a
2021-05-17 2021-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Call 500,000 4,555 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 83,900 -0.59 753 13.57 n/a n/a n/a
2026-02-17 2025-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 84,400 0.00 663 3.76 n/a n/a n/a
2025-11-14 2025-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW Put 84,400 640 n/a n/a n/a
2024-05-15 2024-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 15,000 0.00 127 20.00 n/a n/a n/a
2023-11-14 2023-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW Put 15,000 0.00 106 -11.02 n/a n/a n/a
2023-08-14 2023-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW Put 15,000 -99.13 118 -99.21 n/a n/a n/a
2023-05-15 2023-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 1,715,000 0.88 15,023 35.33 n/a n/a n/a
2023-02-14 2022-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 1,700,000 -29.17 11,101 -16.96 n/a n/a n/a
2022-11-14 2022-09-30 13F UNITED MICROELECTRONICS SPON ADR NEW Put 2,400,000 242.86 13,368 182.08 n/a n/a n/a
2022-08-15 2022-06-30 13F UNITED MICROELECTRONICS SPON ADR NEW Put 700,000 -9.68 4,739 -32.95 n/a n/a n/a
2022-05-16 2022-03-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 775,000 -74.17 7,068 -79.86 n/a n/a n/a
2022-02-14 2021-12-31 13F UNITED MICROELECTRONICS SPON ADR NEW Put 3,000,000 35,100 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.