IMRF
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Illinois Municipal Retirement Fund’s Monolithic Power Systems MPWR Stock Holding History

Illinois Municipal Retirement Fund’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 		$6.15M Buy
4,450
+1,022
+30% +$1.53M 0.07% 332
2026
Q1 		$3.75M Buy
+3,428
New +$3.75M 0.05% 397
2025
Q3 		– Sell
-2,064
Closed -$1.51M – 1246
2025
Q2 		$1.51M Sell
2,064
-13,635
-87% -$8.69M 0.02% 696
2025
Q1 		$9.11M Sell
15,699
-1,227
-7% -$773K 0.13% 200
2024
Q4 		$10M Sell
16,926
-615
-4% -$445K 0.14% 178
2024
Q3 		$16.2M Buy
17,541
+855
+5% +$738K 0.23% 97
2024
Q2 		$13.7M Sell
16,686
-4,579
-22% -$3.3M 0.21% 109
2024
Q1 		$14.4M Hold
21,265
– – 0.22% 107
2023
Q4 		$13.4M Buy
21,265
+2,498
+13% +$1.31M 0.22% 107
2023
Q3 		$8.67M Buy
18,767
+3,218
+21% +$1.65M 0.16% 174
2023
Q2 		$8.4M Sell
15,549
-6,072
-28% -$2.88M 0.17% 189
2023
Q1 		$10.8M Buy
21,621
+7,043
+48% +$3.24M 0.23% 123
2022
Q4 		$5.16M Sell
14,578
-12,588
-46% -$4.52M 0.12% 239
2022
Q3 		$9.87M Buy
27,166
+9,869
+57% +$4.39M 0.24% 118
2022
Q2 		$6.64M Buy
17,297
+14,110
+443% +$5.96M 0.16% 197
2022
Q1 		$1.55M Hold
3,187
– – 0.05% 387
2021
Q4 		$1.57M Buy
3,187
+814
+34% +$420K 0.04% 395
2021
Q3 		$1.15M Hold
2,373
– – 0.04% 419
2021
Q2 		$886K Hold
2,373
– – 0.04% 481
2021
Q1 		$838K Hold
2,373
– – 0.04% 491
2020
Q4 		$869K Buy
2,373
+1,098
+86% +$352K 0.04% 460
2020
Q3 		$357K Buy
+1,275
New +$332K 0.05% 488

Other funds holding MPWR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

Illinois Municipal Retirement Fund's MPWR Position: Q2 2026 in Review

Illinois Municipal Retirement Fund increased its Monolithic Power Systems (MPWR) stake by 30% in Q2 2026, buying an estimated $1.53M and bringing the position to 4,450 shares worth $6.15M. The position accounts for 0.07% of the portfolio, ranked #332.

Illinois Municipal Retirement Fund first reported a position in MPWR in Q3 2020 and has held it in 22 quarters since. The position peaked at $16.2M in Q3 2024. 1,246 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Illinois Municipal Retirement Fund held 4,450 shares of Monolithic Power Systems worth $6.15M as of Q2 2026.
  • Illinois Municipal Retirement Fund bought 1,022 Monolithic Power Systems shares in Q2 2026, an estimated $1.53M.
  • Monolithic Power Systems made up 0.07% of Illinois Municipal Retirement Fund's portfolio in Q2 2026, its #332 holding.
  • Illinois Municipal Retirement Fund first reported a position in Monolithic Power Systems in Q3 2020 and has held it in 22 quarters since.
  • Illinois Municipal Retirement Fund's Monolithic Power Systems position peaked at $16.2M in Q3 2024.
  • 1,246 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Illinois Municipal Retirement Fund's 13F filing for Q2 2026, filed 12 Aug 2026.