MassMutual Private Wealth & Trust
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MassMutual Private Wealth & Trust’s CoStar Group CSGP Stock Holding History

MassMutual Private Wealth & Trust’s Portfolio CSGP Stock Details CSGP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$64.8K Buy
2,365
+122
+5% +$3.66K ﹤0.01% 668
2026
Q2 		$63.5K Buy
2,243
+166
+8% +$5.71K ﹤0.01% 703
2026
Q1 		$83.8K Buy
2,077
+298
+17% +$15.5K ﹤0.01% 613
2025
Q4 		$120K Sell
1,779
-289
-14% -$20.5K ﹤0.01% 556
2025
Q3 		$174K Buy
2,068
+110
+6% +$9.7K ﹤0.01% 470
2025
Q2 		$157K Sell
1,958
-64
-3% -$4.98K ﹤0.01% 486
2025
Q1 		$160K Sell
2,022
-28
-1% -$2.13K ﹤0.01% 464
2024
Q4 		$147K Sell
2,050
-296
-13% -$22.4K ﹤0.01% 502
2024
Q3 		$177K Sell
2,346
-115
-5% -$8.72K 0.01% 426
2024
Q2 		$182K Sell
2,461
-723
-23% -$61.3K 0.01% 414
2024
Q1 		$308K Sell
3,184
-1,588
-33% -$137K 0.01% 338
2023
Q4 		$417K Sell
4,772
-278
-6% -$22.5K 0.01% 305
2023
Q3 		$388K Buy
5,050
+39
+0.8% +$3.23K 0.01% 311
2023
Q2 		$446K Buy
5,011
+180
+4% +$13.9K 0.02% 289
2023
Q1 		$333K Buy
4,831
+169
+4% +$12.5K 0.01% 310
2022
Q4 		$360K Sell
4,662
-34
-0.7% -$2.66K 0.01% 302
2022
Q3 		$327K Sell
4,696
-829
-15% -$57.6K 0.01% 291
2022
Q2 		$334K Sell
5,525
-56
-1% -$3.39K 0.01% 298
2022
Q1 		$372K Buy
5,581
+636
+13% +$42.2K 0.01% 305
2021
Q4 		$391K Buy
4,945
+206
+4% +$17.3K 0.01% 312
2021
Q3 		$408K Buy
+4,739
New +$410K 0.02% 302
2021
Q1 		– Sell
-50
Closed -$5K – 1117
2020
Q4 		$5K Buy
+50
New +$4.38K ﹤0.01% 674
2020
Q3 		– Sell
-20
Closed -$1K – 742
2020
Q2 		$1K Buy
+20
New +$1.29K ﹤0.01% 681
2020
Q1 		– Sell
-260
Closed -$16K – 690
2019
Q4 		$16K Buy
260
+190
+271% +$11.1K ﹤0.01% 550
2019
Q3 		$4K Buy
+70
New +$4.19K ﹤0.01% 702
2018
Q4 		– Sell
-230
Closed -$9.7K – 990
2018
Q3 		$9.7K Hold
230
– – ﹤0.01% 612
2018
Q2 		$9.49K Buy
+230
New +$8.85K ﹤0.01% 613

Other funds holding CSGP

Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $106B AUM 2.29% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Fiera Capital (Canada)
Fiera Capital (Canada) Montreal, Quebec, Canada $25.3B AUM 15.9% 1-Year Est. Return
Squarepoint
Squarepoint New York $90.8B AUM 26.98% 1-Year Est. Return
Douglas Lane & Associates
Douglas Lane & Associates New York $7.46B AUM 24.36% 1-Year Est. Return
Thompson Siegel & Walmsley
Thompson Siegel & Walmsley Richmond, Virginia $5.37B AUM 3.99% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

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

MassMutual Private Wealth & Trust increased its CoStar Group (CSGP) stake by 5.4% in Q3 2026, buying an estimated $3.66K and bringing the position to 2,365 shares worth $64.8K. The position accounts for ﹤0.01% of the portfolio, ranked #668.

MassMutual Private Wealth & Trust first reported a position in CSGP in Q2 2018 and has held it in 27 quarters since. The position peaked at $446K in Q2 2023. 338 funds tracked by Wall St. Rank hold CSGP as of Q3 2026.

  • MassMutual Private Wealth & Trust held 2,365 shares of CoStar Group worth $64.8K as of Q3 2026.
  • MassMutual Private Wealth & Trust bought 122 CoStar Group shares in Q3 2026, an estimated $3.66K.
  • CoStar Group made up ﹤0.01% of MassMutual Private Wealth & Trust's portfolio in Q3 2026, its #668 holding.
  • MassMutual Private Wealth & Trust first reported a position in CoStar Group in Q2 2018 and has held it in 27 quarters since.
  • MassMutual Private Wealth & Trust's CoStar Group position peaked at $446K in Q2 2023.
  • 338 funds tracked by Wall St. Rank held CoStar Group as of Q3 2026.

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