MassMutual Private Wealth & Trust
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MassMutual Private Wealth & Trust’s Monolithic Power Systems MPWR Stock Holding History

MassMutual Private Wealth & Trust’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
Q3 		$310K Sell
230
-13
-5% -$17K 0.01% 370
2026
Q2 		$336K Hold
243
– – 0.01% 368
2026
Q1 		$266K Sell
243
-21
-8% -$22.9K 0.01% 393
2025
Q4 		$239K Buy
264
+7
+3% +$6.74K 0.01% 415
2025
Q3 		$237K Buy
257
+8
+3% +$6.49K 0.01% 420
2025
Q2 		$182K Sell
249
-21
-8% -$13.4K ﹤0.01% 456
2025
Q1 		$157K Buy
270
+147
+120% +$92.6K ﹤0.01% 472
2024
Q4 		$72.8K Sell
123
-132
-52% -$95.6K ﹤0.01% 644
2024
Q3 		$236K Buy
255
+43
+20% +$37.1K 0.01% 382
2024
Q2 		$174K Buy
212
+18
+9% +$13K 0.01% 421
2024
Q1 		$131K Buy
194
+12
+7% +$8.01K ﹤0.01% 437
2023
Q4 		$115K Buy
182
+20
+12% +$10.4K ﹤0.01% 443
2023
Q3 		$74.8K Buy
162
+10
+7% +$5.12K ﹤0.01% 505
2023
Q2 		$82.1K Buy
152
+19
+14% +$9.03K ﹤0.01% 463
2023
Q1 		$66.6K Buy
133
+28
+27% +$12.9K ﹤0.01% 478
2022
Q4 		$37K Buy
105
+30
+40% +$10.8K ﹤0.01% 520
2022
Q3 		$27K Buy
75
+26
+53% +$11.6K ﹤0.01% 539
2022
Q2 		$19K Buy
49
+7
+17% +$2.96K ﹤0.01% 582
2022
Q1 		$20K Buy
42
+33
+367% +$14.4K ﹤0.01% 590
2021
Q4 		$4K Hold
9
– – ﹤0.01% 950
2021
Q3 		$4K Hold
9
– – ﹤0.01% 936
2021
Q2 		$3K Buy
+9
New +$3.17K ﹤0.01% 942
2018
Q3 		– Sell
-15
Closed -$2K – 1066
2018
Q2 		$2K Buy
+15
New +$1.91K ﹤0.01% 877

Other funds holding MPWR

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $500B AUM 36.84% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Citigroup
Citigroup New York $308B AUM 40.94% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return
Natixis
Natixis Paris, France $28B AUM 27.03% 1-Year Est. Return
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $194B AUM 32.2% 1-Year Est. Return
WAM
WT Asset Management Hong Kong $6.18B AUM 432.25% 1-Year Est. Return

MassMutual Private Wealth & Trust's MPWR Position: Q3 2026 in Review

MassMutual Private Wealth & Trust reduced its Monolithic Power Systems (MPWR) stake by 5.3% in Q3 2026, selling an estimated $17K and leaving 230 shares worth $310K. The position accounts for 0.01% of the portfolio, ranked #370.

MassMutual Private Wealth & Trust first reported a position in MPWR in Q2 2018 and has held it in 23 quarters since. The position peaked at $336K in Q2 2026. 647 funds tracked by Wall St. Rank hold MPWR as of Q3 2026.

  • MassMutual Private Wealth & Trust held 230 shares of Monolithic Power Systems worth $310K as of Q3 2026.
  • MassMutual Private Wealth & Trust sold 13 Monolithic Power Systems shares in Q3 2026, an estimated $17K.
  • Monolithic Power Systems made up 0.01% of MassMutual Private Wealth & Trust's portfolio in Q3 2026, its #370 holding.
  • MassMutual Private Wealth & Trust first reported a position in Monolithic Power Systems in Q2 2018 and has held it in 23 quarters since.
  • MassMutual Private Wealth & Trust's Monolithic Power Systems position peaked at $336K in Q2 2026.
  • 647 funds tracked by Wall St. Rank held Monolithic Power Systems as of Q3 2026.

Based on MassMutual Private Wealth & Trust's 13F filing for Q3 2026, filed 5 Oct 2026.