Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| COSTAR GROUP, INC.CSGP · Entity 3416 | Chief Accounting Officer | August 07, 2026 | August 10, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
COSTAR GROUP, INC.
Report date August 07, 2026 · Filed August 10, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common Stock, par value $0.01 per shareSEC Table I · non-derivative | Direct | 18,822 |
Reported balance
After 2026-08-07 transaction · row 1
1 source rowRow 1 · 2026-08-07 · Sale · Disposed 4,788 · Balance 18,822 |
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| August 07, 2026 Filed Aug 10, 2026 20:06 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | SaleCommon Stock, par value $0.01 per share | 4,788 | $30.78 | $147,374.64 |
DisclosureSEC source: 0001472762-26-000012 · wk-form4_1786392398.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 18,822 Read SEC document |
| August 01, 2026 Filed Aug 4, 2026 21:24 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 1,077 | $28.76 | $30,974.52 |
DisclosureSEC source: 0001472762-26-000010 · wk-form4_1785878680.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 23,610 Read SEC document |
| July 31, 2026 Filed Aug 4, 2026 21:24 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | GrantRestricted Stock Units · Derivative | 26,078 | $0.00 | $0.00 |
DisclosureSEC source: 0001472762-26-000010 · wk-form4_1785878680.xml · derivative · entry 2 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,078 Underlying: Common Stock, par value $0.01 per share · 26,078 shares Expires not disclosed F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of CoStar Group, Inc. common stock. F2 · derivative.exercise_date: The restricted stock units vest in four equal installments on August 1, 2027, August 1, 2028, August 1, 2029, and August 1, 2030. F2 · derivative.expiration_date: The restricted stock units vest in four equal installments on August 1, 2027, August 1, 2028, August 1, 2029, and August 1, 2030. Read SEC document |
| June 15, 2026 Filed Jun 16, 2026 21:32 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 461 | $32.04 | $14,770.44 |
DisclosureSEC source: 0001472762-26-000008 · wk-form4_1781645530.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 24,687 Read SEC document |
| March 15, 2026 Filed Mar 17, 2026 20:12 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 1,194 | $43.63 | $52,094.22 |
DisclosureSEC source: 0001472762-26-000006 · wk-form4_1773778327.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,148 F1 · price: On March 13, 2026, the last preceding business day, the closing price of the Company's common stock on Nasdaq was $43.63. Read SEC document |
| March 10, 2026 Filed Mar 11, 2026 21:18 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | GrantCommon Stock, par value $0.01 per share | 4,374 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001472762-26-000004 · wk-form4_1773263900.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,342 F1 · price: Pursuant to the Management Stock Purchase Plan, all or a portion of the reporting person's annual cash incentive amount was converted to Deferred Stock Units (each equivalent to one share of common stock) at $46.34 per unit, and the Company awarded the reporting person Restricted Stock Units that vest in full after four years for an equal number of shares of common stock. Read SEC document |
| March 01, 2026 Filed Mar 4, 2026 00:06 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 1,385 | $44.63 | $61,812.55 |
DisclosureSEC source: 0001472762-26-000002 · wk-form4_1772582768.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 21,968 F1 · price: On February 27, 2026, the last preceding business day, the closing price of the Company's common stock on Nasdaq was $44.63. F2 · balance_after: Includes 142 shares acquired under the CoStar Group, Inc. Employee Stock Purchase Plan. Read SEC document |
| February 27, 2026 Filed Mar 4, 2026 00:06 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | GrantRestricted Stock Units · Derivative | 6,834 | $0.00 | $0.00 |
DisclosureSEC source: 0001472762-26-000002 · wk-form4_1772582768.xml · derivative · entry 2 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 6,834 Underlying: Common Stock, par value $0.01 per share · 6,834 shares Expires not disclosed F3 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of CoStar Group, Inc. common stock. F4 · derivative.exercise_date: The restricted stock units vest in four equal installments on March 1, 2027, March 1, 2028, March 1, 2029, and March 1, 2030. F4 · derivative.expiration_date: The restricted stock units vest in four equal installments on March 1, 2027, March 1, 2028, March 1, 2029, and March 1, 2030. Read SEC document |
| November 13, 2025 Filed Nov 17, 2025 21:03 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | SaleCommon Stock, par value $0.01 per share | 1,841 | $68.79 | $126,642.39 |
DisclosureSEC source: 0001057352-25-000122 · wk-form4_1763413395.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 23,211 F1 · price: Average based on sales prices ranging from $68.78 to $68.85. Read SEC document |
| August 01, 2025 Filed Aug 5, 2025 20:23 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 719 | $95.19 | $68,441.61 |
DisclosureSEC source: 0001472762-25-000006 · wk-form4_1754425385.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,052 Read SEC document |
| July 28, 2025 Filed Jul 29, 2025 20:21 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | SaleCommon Stock, par value $0.01 per share | 2,033 | $92.85 | $188,764.05 |
DisclosureSEC source: 0001472762-25-000004 · wk-form4_1753820507.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 25,771 Read SEC document |
| June 15, 2025 Filed Jun 17, 2025 22:08 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 461 | $81.16 | $37,414.76 |
DisclosureSEC source: 0001057352-25-000078 · wk-form4_1750198120.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,804 Read SEC document |
| March 15, 2025 Filed Mar 19, 2025 00:34 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 1,191 | $78.73 | $93,767.43 |
DisclosureSEC source: 0001057352-25-000059 · wk-form4_1742344452.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,265 Read SEC document |
| March 10, 2025 Filed Mar 14, 2025 20:47 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | SaleCommon Stock, par value $0.01 per share | 1,749 | $79.90 | $139,745.10 |
DisclosureSEC source: 0001057352-25-000050 · wk-form4_1741985270.xml · nonDerivative · entry 3 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 29,456 Read SEC document |
| March 05, 2025 Filed Mar 7, 2025 23:06 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | GrantCommon Stock, par value $0.01 per share | 1,498 | Not disclosed | Not disclosed |
DisclosureSEC source: 0001057352-25-000048 · wk-form4_1741388795.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,715 F1 · price: Pursuant to the Management Stock Purchase Plan, all or a portion of the reporting person's annual cash incentive amount was converted to Deferred Stock Units (each equivalent to one share of common stock) at $77.81 per unit, and the Company awarded the reporting person Restricted Stock Units that vest in full after four years for an equal number of shares of common stock. Read SEC document |
| March 01, 2025 Filed Mar 4, 2025 00:10 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | Tax withholdingCommon Stock, par value $0.01 per share | 813 | $76.25 | $61,991.25 |
DisclosureSEC source: 0001057352-25-000037 · wk-form4_1741047024.xml · nonDerivative · entry 2 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 32,217 Read SEC document |
| February 27, 2025 Filed Mar 4, 2025 00:10 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | GrantCommon Stock, par value $0.01 per share | 4,035 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-25-000037 · wk-form4_1741047024.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 33,030 Read SEC document |
| November 11, 2024 Filed Mar 14, 2025 20:47 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | SaleCommon Stock, par value $0.01 per share | 1,310 | $76.85 | $100,673.50 |
DisclosureSEC source: 0001057352-25-000050 · wk-form4_1741985270.xml · nonDerivative · entry 2 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 26,485 Read SEC document |
| July 31, 2024 Filed Mar 14, 2025 20:47 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | SaleCommon Stock, par value $0.01 per share | 1,200 | $78.20 | $93,840.00 |
DisclosureSEC source: 0001057352-25-000050 · wk-form4_1741985270.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 27,795 F1 · balance_after: This Form 4 reports transactions not previously reported by the Reporting Person and intervening Forms 4 are considered updated with this Form 4. Read SEC document |
| July 26, 2024 Filed Jul 30, 2024 20:12 UTC | COSTAR GROUP, INC. CSGP · Entity 3416 | GrantCommon Stock, par value $0.01 per share | 9,553 | $0.00 | $0.00 |
DisclosureSEC source: 0001057352-24-000097 · wk-form4_1722370332.xml · nonDerivative · entry 1 Cann Cynthia Cammett · CIK 0001472762 · Chief Accounting Officer 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 28,995 Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.