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Aigen Investment Management’s CoStar Group CSGP Stock Holding History

Aigen Investment Management’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
Q2 		$330K Sell
11,644
-805
-6% -$27.7K 0.09% 293
2026
Q1 		$502K Buy
12,449
+7,371
+145% +$384K 0.13% 209
2025
Q4 		$341K Buy
+5,078
New +$360K 0.08% 326
2025
Q1 		– Sell
-4,507
Closed -$323K – 803
2024
Q4 		$323K Buy
+4,507
New +$340K 0.06% 455
2024
Q3 		– Sell
-42,430
Closed -$3.15M – 783
2024
Q2 		$3.15M Buy
+42,430
New +$3.6M 0.61% 17
2023
Q3 		– Sell
-8,288
Closed -$738K – 875
2023
Q2 		$738K Buy
+8,288
New +$640K 0.11% 257
2023
Q1 		– Sell
-9,699
Closed -$750K – 659
2022
Q4 		$750K Buy
+9,699
New +$758K 0.11% 201
2021
Q2 		– Sell
-30,070
Closed -$2.47M – 524
2021
Q1 		$2.47M Buy
+30,070
New +$2.6M 0.33% 74
2020
Q3 		– Sell
-5,200
Closed -$370K – 891
2020
Q2 		$370K Buy
+5,200
New +$336K 0.05% 549

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
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
ACM
AKRE Capital Management Middleburg, Virginia $5.12B AUM 19.08% 1-Year Est. Return
Polen Capital Management
Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return

Aigen Investment Management's CSGP Position: Q2 2026 in Review

Aigen Investment Management reduced its CoStar Group (CSGP) stake by 6.5% in Q2 2026, selling an estimated $27.7K and leaving 11,644 shares worth $330K. The position accounts for 0.09% of the portfolio, ranked #293.

Aigen Investment Management first reported a position in CSGP in Q2 2020 and has held it in 9 quarters since. The position peaked at $3.15M in Q2 2024. 759 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Aigen Investment Management held 11,644 shares of CoStar Group worth $330K as of Q2 2026.
  • Aigen Investment Management sold 805 CoStar Group shares in Q2 2026, an estimated $27.7K.
  • CoStar Group made up 0.09% of Aigen Investment Management's portfolio in Q2 2026, its #293 holding.
  • Aigen Investment Management first reported a position in CoStar Group in Q2 2020 and has held it in 9 quarters since.
  • Aigen Investment Management's CoStar Group position peaked at $3.15M in Q2 2024.
  • 759 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on Aigen Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.