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Cookson Peirce & Co’s Monolithic Power Systems MPWR Stock Holding History

Cookson Peirce & Co’s Portfolio MPWR Stock Details MPWR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$40.8M Buy
29,510
+36
+0.1% +$54K 1.34% 18
2026
Q1 		$32.2M Buy
29,474
+8,138
+38% +$8.89M 1.36% 20
2025
Q4 		$19.3M Buy
21,336
+20,791
+3,815% +$20M 0.8% 42
2025
Q3 		$502K Buy
+545
New +$442K 0.02% 235
2024
Q4 		– Sell
-694
Closed -$642K – 290
2024
Q3 		$642K Buy
694
+7
+1% +$6.04K 0.03% 148
2024
Q2 		$564K Buy
+687
New +$496K 0.03% 153
2022
Q2 		– Sell
-1,796
Closed -$872K – 223
2022
Q1 		$872K Sell
1,796
-19
-1% -$8.28K 0.05% 114
2021
Q4 		$895K Buy
1,815
+128
+8% +$66.1K 0.05% 118
2021
Q3 		$818K Buy
+1,687
New +$767K 0.05% 126
2021
Q1 		– Sell
-4,950
Closed -$1.81M – 197
2020
Q4 		$1.81M Buy
4,950
+578
+13% +$185K 0.12% 79
2020
Q3 		$1.22M Buy
4,372
+1,340
+44% +$349K 0.09% 86
2020
Q2 		$719K Buy
+3,032
New +$614K 0.07% 88
2019
Q2 		– Sell
-27,053
Closed -$3.67M – 168
2019
Q1 		$3.67M Buy
+27,053
New +$3.55M 0.31% 63
2018
Q1 		– Sell
-36,155
Closed -$4.06M – 170
2017
Q4 		$4.06M Buy
36,155
+2,525
+8% +$293K 0.38% 65
2017
Q3 		$3.58M Buy
33,630
+3,235
+11% +$328K 0.37% 71
2017
Q2 		$2.93M Buy
30,395
+4,680
+18% +$446K 0.33% 68
2017
Q1 		$2.37M Buy
25,715
+4,550
+21% +$403K 0.29% 71
2016
Q4 		$1.73M Buy
21,165
+4,935
+30% +$396K 0.24% 74
2016
Q3 		$1.31M Buy
+16,230
New +$1.2M 0.18% 75

Other funds holding MPWR

VNIM
Vaughan Nelson Investment Management Houston, Texas $11.3B AUM 53% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return
CAM
Congress Asset Management Boston, Massachusetts $16.3B AUM 42.69% 1-Year Est. Return
ZCI
Zevenbergen Capital Investments Edmonds, Washington $4.38B AUM 56.68% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return
FMI
Factory Mutual Insurance Waltham, Massachusetts $10.6B AUM 34.1% 1-Year Est. Return
VF
Vest Financial Mclean, Virginia $9.52B AUM 31.6% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

Cookson Peirce & Co's MPWR Position: Q2 2026 in Review

Cookson Peirce & Co increased its Monolithic Power Systems (MPWR) stake by 0.12% in Q2 2026, buying an estimated $54K and bringing the position to 29,510 shares worth $40.8M. The position accounts for 1.34% of the portfolio, ranked #18.

Cookson Peirce & Co first reported a position in MPWR in Q3 2016 and has held it in 19 quarters since. 299 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Cookson Peirce & Co held 29,510 shares of Monolithic Power Systems worth $40.8M as of Q2 2026.
  • Cookson Peirce & Co bought 36 Monolithic Power Systems shares in Q2 2026, an estimated $54K.
  • Monolithic Power Systems made up 1.34% of Cookson Peirce & Co's portfolio in Q2 2026, its #18 holding.
  • Cookson Peirce & Co first reported a position in Monolithic Power Systems in Q3 2016 and has held it in 19 quarters since.
  • 299 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Cookson Peirce & Co's 13F filing for Q2 2026, filed 23 Jul 2026.