Congress Trades

Andrew C FloranceFiled

Founder and CEOExecutiveDirectorCIK 1066061
Net · 12 months
$7.5M
Open-market buys − sales
Sold · 12 months
$0
$0 in 90d · 0 sales on record
Bought · 12 months
$7.5M
$2.5M in 90d · 5 buys on record
Under 10b5-1
—
Share of sale value under a trading plan
Last trade
Aug 4, 2026
Filed Aug 5, 2026 · 24 rows

Monthly open-market value · 24 months Filed

  • Bought (open market)
  • Sold (open market)

Unusual activity Estimated

Whale score 78Whale watch
  • 50Insider overlapAug 19, 2026

    Rep. Gilbert Ray Cisneros, Jr. bought CSGP 15 days after its CEO bought $2.5M

    Details
    Politician
    Gilbert Ray Cisneros, Jr.
    Ticker
    CSGP
    Asset
    CoStar Group, Inc. - Common Stock (CSGP)
    Tx type
    buy
    Tx date
    Aug 19, 2026
    Filing date
    Sep 10, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Amount mid
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    22
    Is whale
    No
    Insider trade
    {"insider":{"slug":"andrew-c-florance","name":"Andrew C Florance","title":"Founder and CEO","short_title":"CEO"},"company":"COSTAR GROUP, INC.","ticker":"CSGP","tx_kind":"open_market_buy","tx_date":"2026-08-04","shares":83300,"price":29.89,"value":2489837,"is_10b5_1":false}
    Days between
    15
    Opposite side
    No
  • 66Exec buyAug 4, 2026

    CSGP CEO Andrew C Florance bought $2.5M on the open market

    Details
    Insider
    Andrew C Florance
    Company
    COSTAR GROUP, INC.
    Ticker
    CSGP
    Tx kind
    open_market_buy
    Tx date
    Aug 4, 2026
    Shares
    83,300
    Price
    $30
    Value
    $2.5M
    Is 10b5 1
    No
  • 66Exec buyMay 1, 2026

    CSGP CEO Andrew C Florance bought $2.4M on the open market

    Details
    Insider
    Andrew C Florance
    Company
    COSTAR GROUP, INC.
    Ticker
    CSGP
    Tx kind
    open_market_buy
    Tx date
    May 1, 2026
    Shares
    68,330
    Price
    $35
    Value
    $2.4M
    Is 10b5 1
    No
  • 46Exec buyMay 1, 2026

    CSGP CEO Andrew C Florance bought $111K on the open market

    Details
    Insider
    Andrew C Florance
    Company
    COSTAR GROUP, INC.
    Ticker
    CSGP
    Tx kind
    open_market_buy
    Tx date
    May 1, 2026
    Shares
    3,100
    Price
    $36
    Value
    $111K
    Is 10b5 1
    No
  • 65Insider overlapApr 14, 2026

    Rep. Gilbert Ray Cisneros, Jr. partially sold CSGP 17 days before its CEO bought $2.4M

    Details
    Politician
    Gilbert Ray Cisneros, Jr.
    Ticker
    CSGP
    Asset
    CoStar Group, Inc. - Common Stock (CSGP)
    Tx type
    partial_sale
    Tx date
    Apr 14, 2026
    Filing date
    May 8, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Amount mid
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    24
    Is whale
    No
    Insider trade
    {"insider":{"slug":"andrew-c-florance","name":"Andrew C Florance","title":"Founder and CEO","short_title":"CEO"},"company":"COSTAR GROUP, INC.","ticker":"CSGP","tx_kind":"open_market_buy","tx_date":"2026-05-01","shares":68330,"price":35.17,"value":2403166.1,"is_10b5_1":false}
    Days between
    -17
    Opposite side
    Yes
  • 66Exec buyFeb 27, 2026

    CSGP CEO Andrew C Florance bought $2.5M on the open market

    Details
    Insider
    Andrew C Florance
    Company
    COSTAR GROUP, INC.
    Ticker
    CSGP
    Tx kind
    open_market_buy
    Tx date
    Feb 27, 2026
    Shares
    55,720
    Price
    $45
    Value
    $2.5M
    Is 10b5 1
    No
  • 50Insider overlapJan 28, 2026

    Rep. Gilbert Ray Cisneros, Jr. bought CSGP 30 days before its CEO bought $2.5M

    Details
    Politician
    Gilbert Ray Cisneros, Jr.
    Ticker
    CSGP
    Asset
    CoStar Group, Inc. - Common Stock (CSGP)
    Tx type
    buy
    Tx date
    Jan 28, 2026
    Filing date
    Feb 13, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Amount mid
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    16
    Is whale
    No
    Insider trade
    {"insider":{"slug":"andrew-c-florance","name":"Andrew C Florance","title":"Founder and CEO","short_title":"CEO"},"company":"COSTAR GROUP, INC.","ticker":"CSGP","tx_kind":"open_market_buy","tx_date":"2026-02-27","shares":55720,"price":44.52,"value":2480654.4,"is_10b5_1":false}
    Days between
    -30
    Opposite side
    No
  • 61Exec buyOct 25, 2024

    CSGP CEO Andrew C Florance bought $1.1M on the open market

    Details
    Insider
    Andrew C Florance
    Company
    COSTAR GROUP, INC.
    Ticker
    CSGP
    Tx kind
    open_market_buy
    Tx date
    Oct 25, 2024
    Shares
    14,731.03
    Price
    $75
    Value
    $1.1M
    Is 10b5 1
    No

Transactions

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