UNITED MICROELECTRONICS CORP UMC
SPON ADR NEW · ADR · CUSIP 910873405 · ISIN US9108734057
Semiconductor foundry company headquartered in Taiwan
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($1.5m this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $8.76. Options: 11 managers hold calls ($12.7m notional), 8 hold puts ($7.0m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 226 |
| Q4 2022 | 223 |
| Q1 2023 | 222 |
| Q2 2023 | 221 |
| Q3 2023 | 218 |
| Q4 2023 | 251 |
| Q1 2024 | 242 |
| Q2 2024 | 238 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 100 | 115 |
| Q1 2023 | 115 | 88 |
| Q2 2023 | 106 | 104 |
| Q3 2023 | 108 | 100 |
| Q4 2023 | 128 | 89 |
| Q1 2024 | 118 | 114 |
| Q2 2024 | 117 | 106 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $34.0m | $6.0m | 0.18 |
| Q4 2023 | $44.3m | $24.1m | 0.54 |
| Q1 2024 | $9.7m | $13.7m | 1.41 |
| Q2 2024 | $12.7m | $7.0m | 0.55 |
Biggest buyers
| MARSHALL WACE, LLP | Added | +4.6m |
| TWO SIGMA INVESTMENTS, LP | Added | +1.9m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | New | +1.9m |
| Genesis Investment Management, LLP | Added | +1.7m |
| BlackRock Inc. | Added | +980.1k |
| BANK OF AMERICA CORP /DE/ | Added | +867.5k |
| CITADEL ADVISORS LLC | New | +722.0k |
| Schonfeld Strategic Advisors LLC | New | +482.3k |
| CITIGROUP INC | Added | +440.1k |
| JPMORGAN CHASE & CO | Added | +415.8k |
Biggest sellers
| MORGAN STANLEY | Reduced | -18.8m |
| UBS Group AG | Reduced | -2.1m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -1.6m |
| MILLENNIUM MANAGEMENT LLC | Reduced | -1.6m |
| NOMURA HOLDINGS INC | Sold out | -1.1m |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | -894.5k |
| GOLDMAN SACHS GROUP INC | Reduced | -856.7k |
| Rafferty Asset Management, LLC | Reduced | -687.9k |
| BARCLAYS PLC | Reduced | -427.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -335.9k |
Biggest calls
| UBS Group AG | Unchanged | $3.9m450.0k shares |
| GROUP ONE TRADING LLC | Reduced | $2.2m248.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.2m247.0k shares |
| JANE STREET GROUP, LLC | Added | $1.8m201.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $855.0k97.7k shares |
| Walleye Capital LLC | New | $645.6k73.7k shares |
| SYMMETRY PEAK MANAGEMENT LLC | New | $438.0k50.0k shares |
| BNP PARIBAS FINANCIAL MARKETS | Unchanged | $438.0k500 shares |
| WOLVERINE TRADING, LLC | Reduced | $187.5k21.4k shares |
| CITADEL ADVISORS LLC | Reduced | $103.4k11.8k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $2.5m286.2k shares |
| Parallax Volatility Advisers, L.P. | Added | $1.3m147.7k shares |
| Squarepoint Ops LLC | Reduced | $875.1k99.9k shares |
| CITADEL ADVISORS LLC | Added | $828.7k94.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $696.0k79.5k shares |
| Walleye Trading LLC | Added | $573.8k65.5k shares |
| GROUP ONE TRADING LLC | Reduced | $226.0k25.8k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2026-04-29 | 6.5% |
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
None reported in Q2 2024.
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.00% of their portfolio | 23.1m $202.4m | Added +980.1k |
| VANGUARD GROUP INC 0.00% of their portfolio | 15.2m $133.3m | Reduced -121.2k |
| BANK OF AMERICA CORP /DE/ 0.01% of their portfolio | 8.5m $74.8m | Added +867.5k |
| Fisher Asset Management, LLC 0.03% of their portfolio | 7.7m $67.2m | Reduced -243.6k |
| MORGAN STANLEY 0.00% of their portfolio | 7.0m $61.3m | Reduced -18.8m |
| UBS Group AG 0.02% of their portfolio | 6.3m $55.0m | Reduced -2.1m |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 6.1m $53.2m | Reduced -856.7k |
| Rafferty Asset Management, LLC 0.19% of their portfolio | 5.9m $52.0m | Reduced -687.9k |
| MARSHALL WACE, LLP 0.07% of their portfolio | 5.2m $46.0m | Added +4.6m |
| CITIGROUP INC 0.04% of their portfolio | 4.4m $38.9m | Added +440.1k |
| Genesis Investment Management, LLP 6.68% of their portfolio | 3.9m $34.0m | Added +1.7m |
| STATE STREET CORP 0.00% of their portfolio | 3.6m $31.6m | Reduced -10.7k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.03% of their portfolio | 3.0m $26.3m | Reduced -292.4k |
| BARCLAYS PLC 0.01% of their portfolio | 3.0m $26.0m | Reduced -427.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 2.7m $23.2m | Reduced -1.6m |
| TWO SIGMA INVESTMENTS, LP 0.04% of their portfolio | 2.0m $17.1m | Added +1.9m |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.06% of their portfolio | 1.9m $16.2m | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.5m $13.2m | Added +415.8k |
| Crossmark Global Holdings, Inc. 0.21% of their portfolio | 1.3m $11.2m | Reduced -44.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 1.0m $8.9m | Reduced -894.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 979.6k $8.6m | Reduced -80.1k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 755.0k $6.6m | Reduced -1.6m |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 722.0k $6.3m | New |
| Moran Wealth Management, LLC 0.21% of their portfolio | 720.9k $6.3m | Reduced -11.4k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 717.4k $6.3m | Reduced -3.0k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 668.6k $5.9m | Reduced -259.6k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 618.9k $5.4m | Reduced -163.1k |
| Creative Planning 0.01% of their portfolio | 539.9k $4.7m | Added +113.1k |
| Schonfeld Strategic Advisors LLC 0.03% of their portfolio | 482.3k $4.2m | New |
| Virtus Family Office LLC 5.34% of their portfolio | 447.9k $3.9m | Added +16.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 439.8k $3.8m | Added +234.6k |
| Ethic Inc. 0.09% of their portfolio | 423.9k $3.7m | Added +10.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 370.6k $3.2m | Reduced -335.9k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.03% of their portfolio | 359.3k $3.1m | Added +5.7k |
| Vident Advisory, LLC 0.09% of their portfolio | 357.6k $3.1m | Added +102.6k |
| Laird Norton Wetherby Wealth Management, LLC 0.14% of their portfolio | 348.2k $3.1m | Added +5.0k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 327.4k $2.9m | Reduced -26.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 315.0k $2.8m | Added +276.9k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 309.0k $2.7m | Added +194.6k |
| STOREBRAND ASSET MANAGEMENT AS 0.01% of their portfolio | 307.4k $2.7m | Unchanged |
| GUGGENHEIM CAPITAL LLC 0.02% of their portfolio | 304.0k $2.7m | Added +48.4k |
| Vanguard Personalized Indexing Management, LLC 0.05% of their portfolio | 301.6k $2.6m | Added +34.4k |
| NewEdge Wealth, LLC 0.05% of their portfolio | 256.8k $2.2m | Added +13.2k |
| LSV ASSET MANAGEMENT 0.00% of their portfolio | 252.7k $2.2m | Unchanged |
| Invesco Ltd. 0.00% of their portfolio | 246.2k $2.2m | Added +13.2k |
| SIGNATUREFD, LLC 0.04% of their portfolio | 229.5k $2.0m | Added +3.2k |
| Summit Global Investments 0.13% of their portfolio | 217.5k $1.9m | Reduced -7.9k |
| Corient Private Wealth LP 0.00% of their portfolio | 210.9k $1.8m | Added +21.5k |
| Hennion & Walsh Asset Management, Inc. 0.09% of their portfolio | 200.0k $1.8m | Reduced -1.6k |
| QUADRANT CAPITAL GROUP LLC 0.13% of their portfolio | 196.4k $1.7m | Added +3.0k |
| Walleye Capital LLC 0.02% of their portfolio | 178.5k $1.6m | Added +171.0k |
| First Trust Direct Indexing L.P. 0.09% of their portfolio | 173.5k $1.5m | Added +2.7k |
| Baird Financial Group, Inc. 0.00% of their portfolio | 162.6k $1.4m | Added +62.5k |
| NATIXIS ADVISORS, LLC 0.00% of their portfolio | 161.2k $1.4m | Reduced -1.3k |
| US BANCORP \DE\ 0.00% of their portfolio | 151.2k $1.3m | Added +24.0k |
| GREENLEAF TRUST 0.01% of their portfolio | 149.5k $1.3m | Unchanged |
| North of South Capital LLP 0.33% of their portfolio | 147.1k $1.3m | First filing |
| Quantinno Capital Management LP 0.02% of their portfolio | 143.1k $1.3m | Added +48.2k |
| TCW GROUP INC 0.01% of their portfolio | 141.9k $1.2m | Reduced -23.0k |
| LPL Financial LLC 0.00% of their portfolio | 138.0k $1.2m | Reduced -5.3k |
| West Family Investments, Inc. 0.35% of their portfolio | 132.4k $1.2m | Reduced -1.1k |
| Grantham, Mayo, Van Otterloo & Co. LLC 0.00% of their portfolio | 131.5k $1.2m | Reduced -19.9k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 128.5k $1.1m | Reduced -1.9k |
| Caprock Group, LLC 0.04% of their portfolio | 126.2k $1.1m | Added +57.8k |
| AXA S.A. 0.00% of their portfolio | 126.0k $1.1m | Added +63.0k |
| Cerity Partners LLC 0.00% of their portfolio | 124.4k $1.1m | Reduced -70.5k |
| MIRABELLA FINANCIAL SERVICES LLP 0.07% of their portfolio | 115.7k $1.0m | New |
| Parallel Advisors, LLC 0.03% of their portfolio | 113.3k $992.8k | Added +4.0k |
| Mariner, LLC 0.00% of their portfolio | 113.3k $992.6k | Reduced -13.7k |
| Ballentine Partners, LLC 0.02% of their portfolio | 109.1k $955.5k | Reduced -4.2k |
| RITHOLTZ WEALTH MANAGEMENT 0.03% of their portfolio | 107.3k $939.6k | Reduced -4.8k |
| Advisors Asset Management, Inc. 0.02% of their portfolio | 105.9k $928.0k | Added +25.0k |
| True Wealth Design, LLC 0.22% of their portfolio | 103.1k $903.3k | Added +1.3k |
| FMR LLC 0.00% of their portfolio | 102.7k $900.0k | Reduced -13.5k |
| Sequoia Financial Advisors, LLC 0.01% of their portfolio | 102.2k $895.3k | Added +1.3k |
| DGS Capital Management, LLC 0.25% of their portfolio | 101.6k $889.7k | Reduced -3.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 99.3k $870.2k | Reduced -64.7k |
| PROFUND ADVISORS LLC 0.03% of their portfolio | 97.5k $854.1k | Added +5.0k |
| Pathstone Holdings, LLC 0.00% of their portfolio | 95.4k $836.1k | Added +1.8k |
| SEVEN EIGHT CAPITAL, LP 0.09% of their portfolio | 94.3k $826.2k | New |
| Ignite Planners, LLC 0.18% of their portfolio | 88.9k $745.3k | Reduced -599 |
| GTS SECURITIES LLC 0.02% of their portfolio | 83.0k $726.7k | Added +25.2k |
| Mizuho Securities Co. Ltd. 1.68% of their portfolio | 82.3k $721.3k | Added +13.0k |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 77.1k $675.0k | Added +352 |
| Blue Trust, Inc. 0.01% of their portfolio | 77.0k $622.8k | Added +42.6k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 76.3k $668.0k | Added +15.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 75.7k $662.9k | Reduced -5.7k |
| Cresset Asset Management, LLC 0.00% of their portfolio | 74.3k $650.6k | Added +7.2k |
| Bridgewater Advisors Inc. 0.07% of their portfolio | 73.7k $547.4k | New |
| BANQUE PICTET & CIE SA 0.01% of their portfolio | 72.0k $630.8k | Unchanged |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 71.5k $626.0k | Added +1.8k |
| Pinnacle Wealth Planning Services, Inc. 0.09% of their portfolio | 69.4k $608.4k | Added +24 |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 63.5k $557.0k | Added +12.7k |
| SeaCrest Wealth Management, LLC 0.06% of their portfolio | 60.6k $531.1k | Added +228 |
| Walleye Trading LLC 0.01% of their portfolio | 59.2k $518.8k | Added +35.2k |
| JOHNSON INVESTMENT COUNSEL INC 0.01% of their portfolio | 57.7k $505.5k | Added +1.9k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 55.3k $484.8k | Added +3.3k |
| Tidal Investments LLC 0.01% of their portfolio | 54.8k $479.6k | Added +29.2k |
| Engineers Gate Manager LP 0.01% of their portfolio | 53.7k $470.5k | Added +8.9k |
| JANICZEK WEALTH MANAGEMENT, LLC 0.10% of their portfolio | 53.1k $465.1k | Reduced -4.4k |