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CSGP CoStar Group

Real Estate, filed as COSTAR GROUP INC (COM), Equity As of 2026 Q2 among managers we track Quote on Google Finance, opens in a new tab

Bought by 4 managers in 2026 Q2, sold by 5

  • 6 Owners
  • #245
  • Max 6.5%
  • Master 0.08%
  • $1.4B
  • 4 add 2 reduce 3 exits

In 2026 Q2, 4 managers added, 2 trimmed, and 3 sold out.

Who owns this now

Largest portfolio weights among holders, up to 6.5% (Chuck Akre, Akre Capital Management). Not free-float ownership.

  1. Chuck Akre Add 6.5%
  2. Chris James Add 5.9%
  3. Polen Capital Management Reduce 2.1%
  4. Ron Baron Add 0.92%
  5. Wallace Weitz Reduce 0.83%
  6. Hillman Capital Management Add 0.22%

Who owns CSGP

Sorted by value, long equity only, as of 2026 Q2.

History
Ron Baron, Bamco Inc. (Baron Capital) 0.92% Add +32.6% 21,626,763 $612M History
Chuck Akre, Akre Capital Management 6.5% Add +13.1% 11,699,396 $331M History
Polen Capital Management 2.1%, was 3.5% Reduce −30.3% 8,759,314 $248M History
Chris James, Meritage Group 5.9%, was 5.1% Add +62.0% 5,394,164 $153M History
Wallace Weitz, Weitz Investment Management 0.83%, was 1.5% Reduce −18.2% 423,181 $12M History
Hillman Capital Management 0.22% Add +25.6% 10,745 $304K History
Chase Coleman, Tiger Global Management exited 2026 Q2 Last 2026 Q1 0.26% Exit −0.26% 1,500,000 $61M History
Corvex Management exited 2026 Q2 Last 2026 Q1 1.4% Exit −1.37% 851,734 $34M History
Dennis Hong, Shawspring Partners exited 2026 Q2 Last 2026 Q1 5.1% Exit −5.11% 339,081 $14M History

6 current, 3 exited last period, options excluded

Weight bar: held both quarters added sold at this quarter’s reported price

Insider trades

Open-market buys and sales by CSGP's executives, directors and 10% owners in the last 12 months, from their Form 4s

All CSGP insider trades
  • $8.5M bought by 4 insiders
  • $534K sold by 2 insiders outside a trading plan
  • None no planned (10b5-1) sales
  1. Cynthia Cammett Cann Chief Accounting Officer
    Sale
    $147K 4,788 shares at $30.78 20% of stake
    Traded Aug 7 Filed Aug 10
    ↗
  2. John W Hill Director
    Sale
    $106K 3,500 shares at $30.21 13% of stake
    Traded Aug 5 Filed Aug 10
    ↗
  3. Andrew C Florance CEO
    Buy
    $2.5M 83,300 shares at $29.89 +4.8% to stake
    Traded Aug 4 Filed Aug 5
    ↗
  4. Andrew C Florance CEO
    Buy
    $2.5M 71,430 shares at $35.20 +4.3% to stake
    Traded May 1 Filed May 4
    ↗
  5. Louise S Sams Director
    Buy
    $48K 1,000 shares at $48.36 +5.2% to stake
    Traded Mar 6 Filed Mar 9
    ↗
  6. Frederick G. Saint President, Marketplaces
    Buy
    $907K 20,000 shares at $45.33 +7.7% to stake
    Traded Mar 2 Filed Mar 3
    ↗
  7. Rachel C Glaser Director
    Buy
    $45K 1,000 shares at $44.94 +32% to stake
    Traded Mar 2 Filed Mar 3
    ↗
  8. Andrew C Florance CEO
    Buy
    $2.5M 55,720 shares at $44.52 +3.6% to stake
    Traded Feb 27 Filed Mar 2
    ↗
  9. John W Hill Director
    Sale
    $155K 2,250 shares at $68.68 11% of stake
    Traded Nov 13, 2025 Filed Nov 17, 2025
    ↗
  10. Cynthia Cammett Cann Chief Accounting Officer
    Sale
    $127K 1,841 shares at $68.79 7.3% of stake
    Traded Nov 13, 2025 Filed Nov 17, 2025
    ↗

Also filed in the last 12 months, not counted as buying or selling: 26 share withholdings for taxes, 12 stock grants, and 4 sales back to the company.

Congress

6 members of Congress traded CSGP in the last three years: 15 buys and 5 sales. 2 members listed it in 2025 annual reports.

All Congress trades
  1. Gilbert Ray Cisneros, Jr. D-CA-31 Buy $1K–$15K Aug 19 filed Sep 10
  2. Gilbert Ray Cisneros, Jr. D-CA-31 Partial sale $1K–$15K Apr 14 filed May 8
  3. Gilbert Ray Cisneros, Jr. D-CA-31 Buy $1K–$15K Mar 13 filed Apr 7
  4. Gilbert Ray Cisneros, Jr. D-CA-31 Buy $1K–$15K Jan 28 filed Feb 13
  5. Gilbert Ray Cisneros, Jr. D-CA-31 Buy $1K–$15K Dec 10, 2025 filed Jan 12
  6. Gilbert Ray Cisneros, Jr. D-CA-31 Buy $1K–$15K Oct 15, 2025 filed Nov 18, 2025

SEC filings

Recent issuer filings from EDGAR, 17 shown.

Filed Form Detail Links
10-Q Filing Doc
8-K 1.01,2.02,7.01,9.01 Filing Doc
8-K 7.01,9.01 Filing Doc
SCHEDULE 13G — Filing Doc
10-Q Filing Doc
8-K 2.02,9.01 Filing Doc
8-K 5.02,7.01,9.01 Filing Doc
8-K 5.02,5.07,7.01,9.01 Filing Doc
8-K 1.01,7.01,9.01 Filing Doc
DEFA14A Filing Doc
DEF 14A Filing Doc
DEFA14A Filing Doc
SCHEDULE 13G — Filing Doc
SCHEDULE 13G — Filing Doc
10-Q Filing Doc
8-K 2.02,7.01,9.01 Filing Doc
SCHEDULE 13G/A — Filing Doc

Source: SEC EDGAR submissions, updated 2 days ago. All on EDGAR

Financials

US-GAAP annual figures by fiscal year, as tagged in Form 10-K. Each value links to its SEC filing.

Income statement

Metric FY2023 FY2024 FY2025
Revenue $2.46B $2.74B $3.25B
Gross profit $1.96B $2.18B $2.56B
Gross margin * 80.0% 79.6% 78.9%
Net income $374.7M $138.7M $7M
Net margin * 15.3% 5.1% 0.2%

Balance sheet

Metric FY2023 FY2024 FY2025
Total current assets $5.48B $4.95B $2.12B
Total non-current assets * $3.44B $4.31B $8.42B
Total assets $8.92B $9.26B $10.54B
Total current liabilities $455.8M $552.3M $746M
Total non-current liabilities * $1.13B $1.15B $1.42B
Total equity $7.34B $7.55B $8.33B

Cash flow

Metric FY2023 FY2024 FY2025
Cash from operations $489.5M $392.6M $430M
Cash from investing -$0.239B -$0.913B -$2.82B
Cash from financing -$3.7M -$13.7M -$559M
Net change in cash $0.248B -$0.535B -$2.95B

Source: SEC companyfacts (US-GAAP 10-K). A * marks a computed figure, not a single XBRL tag. Fiscal years are as the issuer labels them. Follow The Filings does not adjust or audit these figures.

Ownership over time

13Fs that reported it each quarter. Click a bar for that quarter’s holders.