PARNASSUS INVESTMENTS, LLC
Position in MPWR — Monolithic Power Systems, Inc.
CIK 948669
San Francisco, CA
Position in MPWR
as of Jun 30, 2026
· filed Jul 29, 2026
Position Value
$24,282,535
+$4,414,179 QoQ
Shares Held
17,566
-3.3% QoQ
Ownership
0.036%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
#203
of 1,236 holders
Holding Since
Jun 2020
25 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, 2026PARNASSUS INVESTMENTS, LLC holds $4,425,257,455 across 9 Semiconductors names. MPWR ranks #8 (0.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NVDA |
Nvidia Corp
|
8,453,777 | $1,691,516,239 | |
| 2 | AMD |
Advanced Micro Devices Inc
|
2,329,523 | $1,353,243,205 | |
| 3 | AVGO |
Broadcom Inc.
|
2,115,059 | $798,963,537 | |
| 4 | TSM |
Taiwan Semiconductor Manufacturing Co Ltd
|
359,694 | $171,779,063 | |
| 5 | MU |
Micron Technology Inc
|
132,681 | $153,152,351 | |
| 6 | INTC |
Intel Corp
|
893,410 | $124,746,838 | |
| 7 | NXPI |
NXP Semiconductors N.V.
|
318,004 | $89,368,664 | |
| 8 | MPWR |
Monolithic Power Systems, Inc.
This page
|
17,566 | $24,282,535 |
All Filings in MPWR
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $24,282,535 | 17,566 | Shares | Sole | 2026-07-29 | |
| 2026-03-31 | $19,868,356 | 18,172 | Shares | Sole | 2026-05-12 | |
| 2025-12-31 | $24,100,112 | 26,590 | Shares | Sole | 2026-02-12 | |
| 2025-09-30 | $25,235,663 | 27,411 | Shares | Sole | 2025-10-24 | |
| 2025-06-30 | $20,268,002 | 27,712 | Shares | Sole | 2025-08-06 | |
| 2025-03-31 | $16,500,431 | 28,450 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $16,833,865 | 28,450 | Shares | Sole | 2025-02-10 | |
| 2024-09-30 | $21,084,147 | 22,806 | Shares | Sole | 2024-11-08 | |
| 2024-06-30 | $25,195,173 | 30,663 | Shares | Sole | 2024-08-06 | |
| 2024-03-31 | $20,771,729 | 30,663 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $19,341,607 | 30,663 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $13,082,916 | 28,318 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $15,298,233 | 28,318 | Shares | Sole | 2023-07-31 | |
| 2023-03-31 | $14,174,291 | 28,318 | Shares | Sole | 2023-05-01 | |
| 2022-12-31 | $13,949,914 | 39,450 | Shares | Sole | 2023-01-30 | |
| 2022-09-30 | $5,871,090 | 16,156 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $19,302,618 | 50,262 | Shares | Sole | 2022-08-05 | |
| 2022-03-31 | $24,411,248 | 50,262 | Shares | Sole | 2022-05-11 | |
| 2021-12-31 | $24,795,752 | 50,262 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $24,360,986 | 50,262 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $18,770,343 | 50,262 | Shares | Sole | 2021-08-05 | |
| 2021-03-31 | $17,753,041 | 50,262 | Shares | Sole | 2021-05-06 | |
| 2020-12-31 | $18,407,452 | 50,262 | Shares | Sole | 2021-02-10 | |
| 2020-09-30 | $14,053,757 | 50,262 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $12,185,118 | 51,414 | Shares | Sole | 2020-08-12 | |
| No filing history on record for this holder in this stock. | ||||||