Position in MPWR
as of Mar 31, 2026
· filed May 5, 2026
Position Value
$590,860,551
+$192,982,109 QoQ
Shares Held
540,413
+23.1% QoQ
Ownership
1.10%
of shares outstanding
% of Portfolio
0.14%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 97%
Shared 0%
None 3%
Common Shares in MPWR Over Time
Shares Held
Position Value (USD)
Derivatives in MPWR
reported options exposure · as of Mar 31, 2026CallValue
$1,640,025
CallShares
1,500
PutValue
$0
PutShares
0
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 $39,310,213,497 across 69 Semiconductors names. MPWR ranks #11 (1.5% 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 MPWR
Export CSV
28 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,640,025 | 1,500 | Call | Defined | 2026-05-05 | |
| 2026-03-31 | $590,860,551 | 540,413 | Shares | Defined | 2026-05-05 | |
| 2025-12-31 | $397,878,442 | 438,985 | Shares | Defined | 2026-01-29 | |
| 2025-09-30 | $486,391,602 | 528,319 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $367,544,778 | 502,536 | Shares | Defined | 2025-08-14 | |
| 2025-03-31 | $10,439,640 | 18,000 | Put | Defined | 2025-05-13 | |
| 2025-03-31 | $10,439,640 | 18,000 | Call | Defined | 2025-05-13 | |
| 2025-03-31 | $207,221,051 | 357,290 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $242,935,449 | 410,572 | Shares | Defined | 2025-02-14 | |
| 2024-09-30 | $196,384,138 | 212,422 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $96,282,815 | 117,178 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $114,168,979 | 168,535 | Shares | Defined | 2024-05-13 | |
| 2023-12-31 | $122,551,721 | 194,286 | Shares | Defined | 2024-02-09 | |
| 2023-09-30 | $44,781,198 | 96,929 | Shares | Defined | 2023-11-09 | |
| 2023-06-30 | $47,458,663 | 87,849 | Shares | Defined | 2023-08-11 | |
| 2023-03-31 | $53,501,216 | 106,887 | Shares | Defined | 2023-05-12 | |
| 2022-12-31 | $25,159,703 | 71,151 | Shares | Defined | 2023-02-08 | |
| 2022-09-30 | $2,563,058 | 7,053 | Shares | Defined | 2022-11-10 | |
| 2022-06-30 | $26,349,367 | 68,611 | Shares | Defined | 2022-08-10 | |
| 2022-03-31 | $49,250,864 | 101,406 | Shares | Defined | 2022-05-16 | |
| 2021-12-31 | $33,521,772 | 67,950 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $53,596,883 | 110,582 | Shares | Defined | 2021-11-15 | |
| 2021-06-30 | $40,497,664 | 108,442 | Shares | Defined | 2021-08-13 | |
| 2021-03-31 | $44,234,606 | 125,236 | Shares | Defined | 2021-05-12 | |
| 2020-12-31 | $10,327,685 | 28,200 | Shares | Defined | 2021-02-11 | |
| 2020-09-30 | $28,375,661 | 101,483 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $4,801,620 | 20,260 | Shares | Defined | 2020-07-31 | |
| 2020-03-31 | $8,803,874 | 52,573 | Shares | Defined | 2020-05-01 | |
| No filing history on record for this holder in this stock. | ||||||