MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 166,693 Value ($000) $151,085 Avg Close $960.73 Range $831.77 - $1121.48
Q3 2025
Shares 199,686 Value ($000) $183,836 Avg Close $808.07 Range $684.50 - $934.81
Q2 2025
Shares 199,487 Value ($000) $145,898 Avg Close $633.58 Range $436.42 - $750.80
Q1 2025
Shares 200,444 Value ($000) $116,254 Avg Close $624.99 Range $550.94 - $718.03
Q4 2024
Shares 198,416 Value ($000) $117,402 Avg Close $716.72 Range $541.09 - $944.19
Q3 2024
Shares 197,116 Value ($000) $182,231 Avg Close $853.35 Range $721.11 - $948.49
Q2 2024
Shares 210,469 Value ($000) $172,937 Avg Close $712.18 Range $577.26 - $845.04
Q1 2024
Shares 252,025 Value ($000) $170,726 Avg Close $657.62 Range $552.66 - $766.48
Q4 2023
Shares 265,333 Value ($000) $167,365 Avg Close $513.84 Range $385.61 - $636.41
Q3 2023
Shares 287,228 Value ($000) $132,698 Avg Close $501.94 Range $430.22 - $584.79
Q2 2023
Shares 285,328 Value ($000) $154,142 Avg Close $465.29 Range $375.28 - $542.22
Q1 2023
Shares 237,926 Value ($000) $119,090 Avg Close $449.31 Range $331.60 - $518.64
Q4 2022
Shares 216,961 Value ($000) $76,718 Avg Close $350.38 Range $294.21 - $405.83
Q3 2022
Shares 204,808 Value ($000) $74,427 Avg Close $432.95 Range $338.72 - $526.93
Q2 2022
Shares 200,350 Value ($000) $76,909 Avg Close $410.37 Range $365.38 - $475.87
Q1 2022
Shares 168,311 Value ($000) $81,737 Avg Close $422.77 Range $340.68 - $499.27
Q4 2021
Shares 155,316 Value ($000) $76,587 Avg Close $500.08 Range $444.81 - $561.94
Q3 2021
Shares 146,396 Value ($000) $70,890 Avg Close $440.15 Range $351.70 - $504.81
Q2 2021
Shares 45,964 Value ($000) $17,119 Avg Close $340.03 Range $291.31 - $382.48
Q1 2021
Shares 56,784 Value ($000) $20,246 Avg Close $351.26 Range $290.78 - $392.28
Q4 2020
Shares 49,932 Value ($000) $18,288 Avg Close $308.64 Range $261.69 - $353.99
Q3 2020
Shares 51,923 Value ($000) $14,551 Avg Close $250.15 Range $223.49 - $273.49
Q2 2020
Shares 46,807 Value ($000) $11,037 Avg Close $194.18 Range $144.85 - $229.19
Q1 2020
Shares 48,357 Value ($000) $8,112 Avg Close $163.85 Range $124.42 - $184.64
Q4 2019
Shares 43,416 Value ($000) $7,689 Avg Close $152.39 Range $125.11 - $175.03
Q3 2019
Shares 41,526 Value ($000) $6,473 Avg Close $142.31 Range $127.77 - $155.32
Q2 2019
Shares 45,348 Value ($000) $6,151 Avg Close $129.05 Range $108.95 - $152.95
Q1 2019
Shares 41,774 Value ($000) $5,656 Avg Close $124.16 Range $101.64 - $137.81
Q4 2018
Shares 37,402 Value ($000) $4,639 Avg Close $112.91 Range $96.22 - $130.06
Q3 2018
Shares 35,808 Value ($000) $4,516 Avg Close $131.20 Range $117.51 - $143.26
Q2 2018
Shares 55,101 Value ($000) $7,366 Avg Close $119.62 Range $102.58 - $133.88
Q1 2018
Shares 27,181 Value ($000) $3,147 Avg Close $111.03 Range $96.61 - $119.53
Q4 2017
Shares 22,918 Value ($000) $2,575 Avg Close $108.54 Range $98.18 - $118.56
Q3 2017
Shares 22,283 Value ($000) $2,375 Avg Close $94.77 Range $87.95 - $100.67
Q2 2017
Shares 15,926 Value ($000) $1,536 Avg Close $88.76 Range $82.13 - $96.78
Q1 2017
Shares 9,579 Value ($000) $882 Avg Close $82.35 Range $76.05 - $87.81
Q4 2016
Shares 2,216 Value ($000) $181 Avg Close $74.44 Range $69.57 - $81.67
Q3 2016
Shares 7,210 Value ($000) $581 Avg Close $68.33 Range $60.21 - $75.04
Q2 2016
Shares 6,937 Value ($000) $474 Avg Close $60.38 Range $55.33 - $65.50
Q1 2016
Shares 445 Value ($000) $29 Avg Close $54.76 Range $50.58 - $59.11
Q4 2015
Shares 2,578 Value ($000) $164 Avg Close $56.88 Range $45.12 - $63.43
Q3 2015
Shares 1,220 Value ($000) $63 Avg Close $45.23 Range $37.18 - $48.10
Q2 2015
Shares 1,263 Value ($000) $64 Avg Close $48.11 Range $44.76 - $50.50
Q1 2015
Shares 600 Value ($000) $34 Avg Close $45.64 Range $40.76 - $50.87
Q4 2014
Shares 78 Value ($000) $1 Avg Close $40.54 Range $30.68 - $45.83