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Northwestern Mutual Investment Management Company’s CoStar Group CSGP Stock Holding History

Northwestern Mutual Investment Management Company’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 		$547K Buy
13,561
+19
+0.1% +$989 0.01% 768
2025
Q4 		$911K Buy
13,542
+39
+0.3% +$2.76K 0.01% 612
2025
Q3 		$1.14M Buy
13,503
+45
+0.3% +$3.98K 0.02% 527
2025
Q2 		$1.08M Buy
13,458
+54
+0.4% +$4.21K 0.02% 528
2025
Q1 		$1.06M Buy
13,404
+387
+3% +$29.4K 0.02% 515
2024
Q4 		$932K Buy
13,017
+28
+0.2% +$2.12K 0.02% 582
2024
Q3 		$980K Sell
12,989
-6
-0% -$455 0.02% 578
2024
Q2 		$963K Buy
12,995
+37
+0.3% +$3.14K 0.02% 538
2024
Q1 		$1.25M Buy
12,958
+32
+0.2% +$2.75K 0.03% 444
2023
Q4 		$1.13M Buy
12,926
+38
+0.3% +$3.08K 0.03% 459
2023
Q3 		$991K Buy
12,888
+1
+0% +$83 0.03% 463
2023
Q2 		$1.15M Buy
12,887
+104
+0.8% +$8.03K 0.03% 419
2023
Q1 		$880K Buy
12,783
+36
+0.3% +$2.66K 0.02% 523
2022
Q4 		$985K Sell
12,747
-1,959
-13% -$153K 0.03% 247
2022
Q3 		$1.02M Buy
+14,706
New +$1.02M 0.03% 300
2016
Q1 		– Sell
-38,260
Closed -$791K – 937
2015
Q4 		$791K Buy
38,260
+160
+0.4% +$3.18K 0.02% 424
2015
Q3 		$659K Hold
38,100
– – 0.01% 469
2015
Q2 		$767K Buy
38,100
+2,300
+6% +$46.9K 0.02% 469
2015
Q1 		$708K Buy
+35,800
New +$676K 0.01% 508

Other funds holding CSGP

VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 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 $33.1B AUM 11.16% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
Polen Capital Management
Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return

Northwestern Mutual Investment Management Company's CSGP Position: Q1 2026 in Review

Northwestern Mutual Investment Management Company increased its CoStar Group (CSGP) stake by 0.14% in Q1 2026, buying an estimated $989 and bringing the position to 13,561 shares worth $547K. The position accounts for 0.01% of the portfolio, ranked #768.

Northwestern Mutual Investment Management Company first reported a position in CSGP in Q1 2015 and has held it in 19 quarters since. The position peaked at $1.25M in Q1 2024. 793 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

  • Northwestern Mutual Investment Management Company held 13,561 shares of CoStar Group worth $547K as of Q1 2026.
  • Northwestern Mutual Investment Management Company bought 19 CoStar Group shares in Q1 2026, an estimated $989.
  • CoStar Group made up 0.01% of Northwestern Mutual Investment Management Company's portfolio in Q1 2026, its #768 holding.
  • Northwestern Mutual Investment Management Company first reported a position in CoStar Group in Q1 2015 and has held it in 19 quarters since.
  • Northwestern Mutual Investment Management Company's CoStar Group position peaked at $1.25M in Q1 2024.
  • 793 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on Northwestern Mutual Investment Management Company's 13F filing for Q1 2026, filed 8 May 2026.