EF
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Empirical Finance’s Monolithic Power Systems MPWR Stock Holding History

Empirical Finance’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 		$1.82M Buy
1,319
+63
+5% +$94.6K 0.08% 216
2026
Q1 		$1.37M Buy
1,256
+1
+0.1% +$1.09K 0.06% 256
2025
Q4 		$1.14M Sell
1,255
-152
-11% -$146K 0.05% 267
2025
Q3 		$1.3M Buy
1,407
+16
+1% +$13K 0.06% 262
2025
Q2 		$1.02M Buy
1,391
+112
+9% +$71.4K 0.05% 291
2025
Q1 		$742K Buy
1,279
+49
+4% +$30.9K 0.04% 333
2024
Q4 		$728K Buy
1,230
+1
+0.1% +$724 0.04% 330
2024
Q3 		$1.14M Buy
1,229
+52
+4% +$44.9K 0.07% 257
2024
Q2 		$967K Sell
1,177
-74
-6% -$53.4K 0.06% 273
2024
Q1 		$847K Buy
1,251
+59
+5% +$39.4K 0.05% 304
2023
Q4 		$752K Buy
1,192
+36
+3% +$18.8K 0.05% 307
2023
Q3 		$534K Buy
1,156
+164
+17% +$83.9K 0.04% 364
2023
Q2 		$536K Buy
992
+148
+18% +$70.3K 0.04% 343
2023
Q1 		$422K Buy
844
+55
+7% +$25.3K 0.04% 389
2022
Q4 		$279K Buy
789
+115
+17% +$41.3K 0.03% 452
2022
Q3 		$245K Buy
+674
New +$300K 0.03% 444
2022
Q2 		– Sell
-444
Closed -$216K – 487
2022
Q1 		$216K Buy
+444
New +$193K 0.02% 467

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 $3.37T AUM 44.26% 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

Empirical Finance's MPWR Position: Q2 2026 in Review

Empirical Finance increased its Monolithic Power Systems (MPWR) stake by 5% in Q2 2026, buying an estimated $94.6K and bringing the position to 1,319 shares worth $1.82M. The position accounts for 0.08% of the portfolio, ranked #216.

Empirical Finance first reported a position in MPWR in Q1 2022 and has held it in 17 quarters since. 1,240 funds tracked by Wall St. Rank hold MPWR as of Q2 2026.

  • Empirical Finance held 1,319 shares of Monolithic Power Systems worth $1.82M as of Q2 2026.
  • Empirical Finance bought 63 Monolithic Power Systems shares in Q2 2026, an estimated $94.6K.
  • Monolithic Power Systems made up 0.08% of Empirical Finance's portfolio in Q2 2026, its #216 holding.
  • Empirical Finance first reported a position in Monolithic Power Systems in Q1 2022 and has held it in 17 quarters since.
  • 1,240 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q2 2026.

Based on Empirical Finance's 13F filing for Q2 2026, filed 14 Aug 2026.