NP
CSGP icon

NS Partners’s CoStar Group CSGP Stock Holding History

NS Partners’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
Q1 		– Sell
-214,981
Closed -$14.5M – 77
2025
Q4 		$14.5M Buy
214,981
+178
+0.1% +$12.6K 0.57% 52
2025
Q3 		$18.1M Buy
214,803
+301
+0.1% +$26.6K 0.7% 44
2025
Q2 		$17.2M Sell
214,502
-5,018
-2% -$391K 0.7% 43
2025
Q1 		$17.4M Buy
219,520
+4,675
+2% +$356K 0.76% 44
2024
Q4 		$15.4M Buy
214,845
+32,428
+18% +$2.45M 0.64% 51
2024
Q3 		$13.8M Buy
182,417
+3,836
+2% +$291K 0.58% 54
2024
Q2 		$13.2M Buy
178,581
+700
+0.4% +$59.3K 0.6% 52
2024
Q1 		$17.2M Buy
177,881
+1,160
+0.7% +$99.9K 0.79% 48
2023
Q4 		$15.4M Buy
176,721
+1,260
+0.7% +$102K 0.75% 51
2023
Q3 		$13.5M Sell
175,461
-324
-0.2% -$26.8K 0.73% 55
2023
Q2 		$15.6M Sell
175,785
-1,629
-0.9% -$126K 0.82% 49
2023
Q1 		$12.2M Buy
177,414
+227
+0.1% +$16.8K 0.69% 56
2022
Q4 		$13.7M Buy
177,187
+11,977
+7% +$936K 0.83% 52
2022
Q3 		$11.5M Buy
165,210
+5,785
+4% +$402K 0.75% 54
2022
Q2 		$9.63M Buy
159,425
+1,717
+1% +$104K 0.58% 60
2022
Q1 		$10.5M Sell
157,708
-4,378
-3% -$291K 0.56% 61
2021
Q4 		$12.8M Buy
162,086
+1,207
+0.8% +$101K 0.6% 56
2021
Q3 		$13.8M Buy
160,879
+1,874
+1% +$162K 0.71% 58
2021
Q2 		$13.2M Buy
159,005
+4,775
+3% +$413K 0.69% 51
2021
Q1 		$12.7M Buy
154,230
+76,600
+99% +$6.61M 0.73% 51
2020
Q4 		$7.17M Buy
+77,630
New +$6.81M 0.42% 64

Other funds holding CSGP

Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $204B AUM 27.99% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Polen Capital Management
Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return

NS Partners's CSGP Position: Q1 2026 in Review

NS Partners sold out of CoStar Group (CSGP) in Q1 2026, closing a stake of 214,981 shares — an estimated $14.5M sold.

NS Partners first reported a position in CSGP in Q4 2020 and held it in 21 quarters. The position peaked at $18.1M in Q3 2025. 797 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

  • NS Partners reported no remaining CoStar Group position as of Q1 2026 after selling out during the quarter.
  • NS Partners sold 214,981 CoStar Group shares in Q1 2026, an estimated $14.5M.
  • NS Partners first reported a position in CoStar Group in Q4 2020 and held it in 21 quarters.
  • NS Partners's CoStar Group position peaked at $18.1M in Q3 2025.
  • 797 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on NS Partners's 13F filing for Q1 2026, filed 11 May 2026.