Riverstone Advisors, LLC
Position in MPWR — Monolithic Power Systems, Inc.
CIK 1763404
NEW BRAUNFELS, TX
Position in MPWR
as of Jun 30, 2026
· filed Aug 6, 2026
Position Value
$1,132,152
+$276,059 QoQ
Shares Held
819
+4.6% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.67%
of 13F equity value
Holder Rank
#613
of 1,236 holders
Holding Since
Dec 2020
20 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in MPWR Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Jun 30, 2026Riverstone Advisors, LLC holds $19,963,952 across 8 Semiconductors names. MPWR ranks #4 (5.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AVGO |
Broadcom Inc.
|
21,116 | $7,976,569 | |
| 2 | NVDA |
Nvidia Corp
|
29,402 | $5,883,046 | |
| 3 | MU |
Micron Technology Inc
|
2,350 | $2,712,581 | |
| 4 | MPWR |
Monolithic Power Systems, Inc.
This page
|
819 | $1,132,152 | |
| 5 | INTC |
Intel Corp
|
7,578 | $1,058,116 | |
| 6 | AMD |
Advanced Micro Devices Inc
|
867 | $503,648 | |
| 7 | ADI |
Analog Devices Inc
|
1,007 | $399,950 | |
| 8 | MRVL |
Marvell Technology, Inc.
|
1,000 | $297,890 |
All Filings in MPWR
Export CSV
20 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $1,132,152 | 819 | Shares | Sole | 2026-08-06 | |
| 2026-03-31 | $856,093 | 783 | Shares | Sole | 2026-04-21 | |
| 2025-12-31 | $609,980 | 673 | Shares | Sole | 2026-02-02 | |
| 2025-09-30 | $614,987 | 668 | Shares | Sole | 2025-11-07 | |
| 2025-06-30 | $437,365 | 598 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $222,132 | 383 | Shares | Sole | 2025-04-25 | |
| 2024-06-30 | $346,748 | 422 | Shares | Sole | 2024-07-22 | |
| 2024-03-31 | $285,871 | 422 | Shares | Sole | 2024-05-10 | |
| 2023-12-31 | $1,356,807 | 2,151 | Shares | Sole | 2024-01-30 | |
| 2023-09-30 | $1,000,692 | 2,166 | Shares | Sole | 2023-11-09 | |
| 2023-06-30 | $1,150,689 | 2,130 | Shares | Sole | 2023-08-03 | |
| 2023-03-31 | $1,083,669 | 2,165 | Shares | Sole | 2023-05-02 | |
| 2022-09-30 | $219,493 | 604 | Shares | Sole | 2022-10-27 | |
| 2022-06-30 | $231,960 | 604 | Shares | Sole | 2022-07-26 | |
| 2022-03-31 | $390,486 | 804 | Shares | Sole | 2022-04-29 | |
| 2021-12-31 | $412,423 | 836 | Shares | Sole | 2022-01-26 | |
| 2021-09-30 | $317,950 | 656 | Shares | Sole | 2021-11-04 | |
| 2021-06-30 | $244,983 | 656 | Shares | Sole | 2021-07-28 | |
| 2021-03-31 | $231,705 | 656 | Shares | Sole | 2021-04-26 | |
| 2020-12-31 | $243,909 | 666 | Shares | Sole | 2021-02-02 | |
| No filing history on record for this holder in this stock. | ||||||