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Trades dated through Oct 28, 2026 · Filings through Nov 5, 2026 · Updated Nov 8, 2026

CSGP

CoStar Group, Inc. - Common Stock (CSGP)

20 disclosed trades by 6 members since January 2025. Amounts are disclosed ranges, not exact dollar amounts.

20

Disclosed trades

6

Members who traded it

15

Buys

5

Sells

01 / Direction

Buys vs sells

02 / Members

Who traded it most

03 / All trades

Every CSGP trade in this snapshot

Showing 20 of 20 trades. Reported amounts are the ranges filers disclose, not exact dollar amounts.

Trade dateMemberTickerTypeOwnerReported amountFiledDelay
Aug 19, 2026
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KSep 10, 202622d Filing
Apr 14, 2026
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
SellSelf$1K–$15KMay 8, 202624d Filing
Mar 13, 2026
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KApr 7, 202625d Filing
Jan 28, 2026
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KFeb 13, 202616d Filing
Dec 10, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KJan 12, 202633d Filing
Oct 15, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KNov 18, 202534d Filing
Sep 30, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KOct 10, 202510d Filing
Sep 25, 2025
RepublicanLisa C. McClain
House · MI
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
SellSpouse$1K–$15KOct 22, 202527d Filing
Sep 22, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KOct 10, 202518d Filing
Aug 13, 2025
RepublicanLisa C. McClain
House · MI
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySpouse$1K–$15KSep 12, 202530d Filing
Jul 31, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KAug 14, 202514d Filing
Jul 9, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KAug 14, 202536d Filing
Jun 30, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KJul 10, 202510d Filing
Jun 27, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$15K–$50KJul 10, 202513d Filing
Jun 25, 2025
House · CA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KJul 10, 202515d Filing
May 15, 2025
House · PA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
SellSelf$1K–$15KMay 31, 202516d Filing
May 12, 2025
RepublicanJefferson Shreve
House · IN
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
SellSelf$15K–$50KJun 22, 202541d Filing
Feb 24, 2025
RepublicanJefferson Shreve
House · IN
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$15K–$50KMar 9, 202513d Filing
Jan 21, 2025
House · MA
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
BuySelf$1K–$15KFeb 25, 202535d Filing
Jan 15, 2025
DemocraticJulie Johnson
House · TX
CSGP
CoStar Group, Inc. - Common Stock (CSGP)
SellJoint$1K–$15KFeb 12, 202528d Filing

Source · Source: U.S. House Clerk (official). Senate not included.. Amounts are the dollar ranges filers report, not exact values. No price or gain/loss estimates are published. Amended reports replace the earlier version. Paper or scanned filings are linked for reference but excluded from trade counts pending validation. House scanned/paper filings: 122. Senate paper filings: 0. Trades dated through October 28, 2026 · Filings through November 5, 2026 · Updated November 8, 2026.