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Yorktown Management & Research Co Inc
> MPWR
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 06/30/2023 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | 0 | 702,299,000 | 242,606,000 | $540,230.00 |
| 12/31/2022 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | 0 | 459,693,000 | 459,221,000 | $353,610.00 |
| 09/30/2022 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | 0 | 472,000 | -27,000 | $363.08 |
| 06/30/2022 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | 0 | 499,000 | -132,000 | $383.85 |
| 03/31/2022 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | 0 | 631,000 | -10,000 | $485.38 |
| 12/31/2021 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | 0 | 641,000 | 11,000 | $493.08 |
| 09/30/2021 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | 0 | 630,000 | 145,000 | $484.62 |
| 06/30/2021 | MONOLITHIC POWER SYSTEMS INC | MPWR | 1,300 | -1,700 | 485,000 | -575,000 | $373.08 |
| 03/31/2021 | MONOLITHIC POWER SYSTEMS INC | MPWR | 3,000 | 0 | 1,060,000 | -39,000 | $353.33 |
| 12/31/2020 | MONOLITHIC POWER SYSTEMS INC | MPWR | 3,000 | 0 | 1,099,000 | 260,000 | $366.33 |
| 09/30/2020 | MONOLITHIC POWER SYSTEMS INC | MPWR | 3,000 | 0 | 839,000 | 128,000 | $279.67 |
| 06/30/2020 | MONOLITHIC POWER SYSTEMS INC | MPWR | 3,000 | -1,700 | 711,000 | -76,000 | $237.00 |
| 03/31/2020 | MONOLITHIC POWER SYSTEMS INC | MPWR | 4,700 | 2,300 | 787,000 | 360,000 | $167.45 |
| 12/31/2019 | MONOLITHIC POWER SYSTEMS INC | MPWR | 2,400 | 2,400 | 427,000 | 427,000 | $177.92 |
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