Position in POWI
as of Jun 30, 2026
· filed Jul 13, 2026
Position Value
$11,603,942
-$5,602,739 QoQ
Shares Held
138,538
-58.8% QoQ
Ownership
0.248%
of shares outstanding
% of Portfolio
0.34%
of 13F equity value
Holder Rank
#55
of 372 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 88%
Shared 0%
None 12%
Common Shares in POWI Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Jun 30, 2026RIVERBRIDGE PARTNERS LLC holds $340,633,882 across 6 Semiconductors names. POWI ranks #3 (3.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NVDA |
Nvidia Corp
|
998,902 | $199,870,301 | |
| 2 | ADI |
Analog Devices Inc
|
295,295 | $117,282,315 | |
| 3 | POWI |
Power Integrations Inc
This page
|
138,538 | $11,603,942 | |
| 4 | PI |
Impinj Inc
|
56,028 | $8,024,890 | |
| 5 | TSM |
Taiwan Semiconductor Manufacturing Co Ltd
|
6,809 | $3,251,774 | |
| 6 | AMD |
Advanced Micro Devices Inc
|
1,034 | $600,660 |
All Filings in POWI
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $11,603,942 | 138,538 | Shares | Sole | 2026-07-13 | |
| 2026-03-31 | $17,206,681 | 336,068 | Shares | Sole | 2026-04-17 | |
| 2025-12-31 | $12,708,890 | 357,594 | Shares | Sole | 2026-01-13 | |
| 2025-09-30 | $15,163,673 | 377,112 | Shares | Sole | 2025-10-14 | |
| 2025-06-30 | $22,985,353 | 411,187 | Shares | Sole | 2025-07-15 | |
| 2025-03-31 | $23,876,097 | 472,794 | Shares | Sole | 2025-04-21 | |
| 2024-12-31 | $31,920,556 | 517,351 | Shares | Sole | 2025-01-17 | |
| 2024-09-30 | $36,077,310 | 562,653 | Shares | Sole | 2024-10-15 | |
| 2024-06-30 | $40,866,793 | 582,231 | Shares | Sole | 2024-07-17 | |
| 2024-03-31 | $45,098,179 | 630,303 | Shares | Sole | 2024-04-26 | |
| 2023-12-31 | $53,417,563 | 650,561 | Shares | Sole | 2024-02-15 | |
| 2023-09-30 | $50,278,598 | 658,873 | Shares | Sole | 2024-02-15 | |
| 2023-06-30 | $63,481,915 | 670,560 | Shares | Sole | 2023-07-25 | |
| 2023-03-31 | $57,902,901 | 684,108 | Shares | Sole | 2023-04-21 | |
| 2022-12-31 | $51,045,921 | 711,739 | Shares | Sole | 2023-01-11 | |
| 2022-09-30 | $46,395,945 | 721,330 | Shares | Sole | 2022-10-26 | |
| 2022-06-30 | $57,045,330 | 760,503 | Shares | Sole | 2022-07-11 | |
| 2022-03-31 | $69,352,536 | 748,301 | Shares | Sole | 2022-04-20 | |
| 2021-12-31 | $63,047,601 | 678,734 | Shares | Sole | 2022-01-14 | |
| 2021-09-30 | $64,687,985 | 653,480 | Shares | Sole | 2021-10-26 | |
| 2021-06-30 | $53,847,525 | 656,197 | Shares | Sole | 2021-07-26 | |
| 2021-03-31 | $50,975,843 | 625,624 | Shares | Sole | 2021-04-21 | |
| 2020-12-31 | $55,412,180 | 676,914 | Shares | Sole | 2021-01-22 | |
| 2020-09-30 | $33,552,677 | 605,644 | Shares | Sole | 2020-10-08 | |
| 2020-06-30 | $37,084,078 | 313,926 | Shares | Sole | 2020-07-08 | |
| 2020-03-31 | $28,559,032 | 323,322 | Shares | Sole | 2020-04-13 | |
| No filing history on record for this holder in this stock. | ||||||