Position in UMC
as of Mar 31, 2026
· filed May 5, 2026
Position Value
$73,412,790
+$37,489,080 QoQ
Shares Held
8,175,144
+78.9% QoQ
Ownership
0.326%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 84.02621409482207.ToString("F0")%
Shared 0.ToString("F0")%
None 15.97378590517794.ToString("F0")%
Common Shares in UMC Over Time
Shares Held
Position Value (USD)
Derivatives in UMC
reported options exposure · as of Mar 31, 2026CallValue
$1,796,000
CallShares
200,000
PutValue
$1,252,710
PutShares
139,500
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Semiconductors
Technology · as of Mar 31, 2026UBS Group AG holds $39,311,830,103 across 69 Semiconductors names. UMC ranks #26 (0.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NVDA |
Nvidia Corp
|
83,172,224 | $14,505,235,860 | |
| 2 | AVGO |
Broadcom Inc.
|
24,644,919 | $7,627,848,874 | |
| 3 | TSM |
Taiwan Semiconductor Manufacturing Co Ltd
|
11,007,197 | $3,719,882,221 | |
| 4 | MU |
Micron Technology Inc
|
6,048,920 | $2,043,567,126 | |
| 5 | TXN |
Texas Instruments Inc
|
8,645,088 | $1,678,357,379 | |
| 6 | AMD |
Advanced Micro Devices Inc
|
7,816,763 | $1,590,164,091 | |
| 7 | QCOM |
Qualcomm Inc/De
|
10,480,187 | $1,349,638,479 | |
| 8 | INTC |
Intel Corp
|
27,261,249 | $1,203,038,914 |
All Filings in UMC
Export CSV
44 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,796,000 | 200,000 | Call | Defined | 2026-05-05 | |
| 2026-03-31 | $1,252,710 | 139,500 | Put | Defined | 2026-05-05 | |
| 2026-03-31 | $73,412,790 | 8,175,144 | Shares | Defined | 2026-05-05 | |
| 2025-12-31 | $3,100,770 | 394,500 | Put | Defined | 2026-01-29 | |
| 2025-12-31 | $35,923,710 | 4,570,447 | Shares | Defined | 2026-01-29 | |
| 2025-09-30 | $28,516,223 | 3,762,035 | Shares | Defined | 2025-11-13 | |
| 2025-09-30 | $2,577,958 | 340,100 | Put | Defined | 2025-11-13 | |
| 2025-09-30 | $379,000 | 50,000 | Call | Defined | 2025-11-13 | |
| 2025-06-30 | $382,500 | 50,000 | Call | Defined | 2025-08-14 | |
| 2025-06-30 | $129,199,478 | 16,888,821 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $110,441,270 | 15,446,332 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $62,200,475 | 9,584,049 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $3,789,000 | 450,000 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $61,316,163 | 7,282,205 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $55,048,344 | 6,284,058 | Shares | Defined | 2024-08-14 | |
| 2024-06-30 | $3,942,000 | 450,000 | Call | Defined | 2024-08-14 | |
| 2024-03-31 | $3,640,500 | 450,000 | Call | Defined | 2024-05-13 | |
| 2024-03-31 | $67,700,272 | 8,368,390 | Shares | Defined | 2024-05-13 | |
| 2023-12-31 | $57,117,232 | 6,751,446 | Shares | Defined | 2024-02-09 | |
| 2023-09-30 | $52,980,178 | 7,504,275 | Shares | Defined | 2023-11-09 | |
| 2023-06-30 | $43,505,685 | 5,514,029 | Shares | Defined | 2023-08-11 | |
| 2023-03-31 | $63,836,701 | 7,287,295 | Shares | Defined | 2023-05-12 | |
| 2023-03-31 | $6,570,000 | 750,000 | Call | Defined | 2023-05-12 | |
| 2022-12-31 | $4,897,500 | 750,000 | Call | Defined | 2023-02-08 | |
| 2022-12-31 | $8,162,500 | 1,250,000 | Put | Defined | 2023-02-08 | |
| 2022-12-31 | $39,259,833 | 6,012,226 | Shares | Defined | 2023-02-08 | |
| 2022-09-30 | $36,654,073 | 6,580,624 | Shares | Defined | 2022-11-10 | |
| 2022-09-30 | $5,570,000 | 1,000,000 | Call | Defined | 2022-11-10 | |
| 2022-09-30 | $6,962,500 | 1,250,000 | Put | Defined | 2022-11-10 | |
| 2022-06-30 | $5,599,467 | 827,100 | Put | Defined | 2022-08-10 | |
| 2022-06-30 | $56,686,189 | 8,373,145 | Shares | Defined | 2022-08-10 | |
| 2022-03-31 | $71,937,973 | 7,887,936 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $2,340,000 | 200,000 | Put | Defined | 2022-02-14 | |
| 2021-12-31 | $82,255,676 | 7,030,400 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $142,704,760 | 12,485,106 | Shares | Defined | 2021-11-15 | |
| 2021-09-30 | $5,143,500 | 450,000 | Put | Defined | 2021-11-15 | |
| 2021-06-30 | $14,568,913 | 1,541,684 | Shares | Defined | 2021-08-13 | |
| 2021-06-30 | $7,087,500 | 750,000 | Put | Defined | 2021-08-13 | |
| 2021-03-31 | $6,123,804 | 672,207 | Shares | Defined | 2021-05-12 | |
| 2021-03-31 | $5,010,500 | 550,000 | Put | Defined | 2021-05-12 | |
| 2020-12-31 | $2,472,348 | 293,280 | Shares | Defined | 2021-02-11 | |
| 2020-09-30 | $980,866 | 204,774 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $553,245 | 209,563 | Shares | Defined | 2020-07-31 | |
| 2020-03-31 | $443,428 | 204,345 | Shares | Defined | 2020-05-01 | |
| No filing history on record for this holder in this stock. | ||||||