INVESTABOT
Equity Research
XNAS · SERVICES-BUSINESS SERVICES, NEC · SERVICES-BUSINESS SERVICES, NEC
Includes notes from domestic 8-K and foreign private issuer 6-K disclosures.
TL;DR: CoStar Group stockholders reelected all eight director nominees and approved the company's executive compensation program at the Annual Meeting held June 23, 2026.
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 8/7/2026 | Cann Cynthia Cammett | Chief Accounting Officer | SELL | -4,788 | $31 | $147,375 |
| 8/5/2026 | Hill John W | — | SELL | -3,500 | $30 | $105,735 |
| 8/4/2026 | FLORANCE ANDREW C | Founder and CEO | BUY | 83,300 | $30 | $2,489,837 |
| 8/1/2026 | SAINT FREDERICK G. | President, Marketplaces | TAX_WITHHOLD | -1,436 | $29 | $41,299 |
| 8/1/2026 | Cann Cynthia Cammett | Chief Accounting Officer | TAX_WITHHOLD | -1,077 | $29 | $30,975 |
| 7/31/2026 | Cann Cynthia Cammett | Chief Accounting Officer | GRANT | 26,078 | — | — |
| 7/31/2026 | Rossmann Robin Jack | Chief Financial Officer | GRANT | 34,771 | — | — |
| 7/1/2026 | LOWN CHRISTIAN M. | Chief Financial Officer | TAX_WITHHOLD | -5,597 | $29 | $164,328 |
| 6/23/2026 | McCarthy Christine M | — | GRANT | 8,262 | — | — |
| 6/23/2026 | Sams Louise S | — | GRANT | 8,262 | — | — |
| 6/23/2026 | Musslewhite Robert W | — | GRANT | 8,262 | — | — |
| 6/23/2026 | Brunner Angelique G. | — | GRANT | 8,262 | — | — |
| 6/23/2026 | Hill John W | — | GRANT | 8,262 | — | — |
| 6/23/2026 | BERISFORD JOHN L | — | GRANT | 8,262 | — | — |
| 6/23/2026 | Glaser Rachel C | — | GRANT | 8,262 | — | — |
| 6/15/2026 | Cann Cynthia Cammett | Chief Accounting Officer | TAX_WITHHOLD | -461 | $32 | $14,770 |
| 5/1/2026 | FLORANCE ANDREW C | President and CEO | BUY | 3,100 | $36 | $111,042 |
| 5/1/2026 | FLORANCE ANDREW C | President and CEO | BUY | 68,330 | $35 | $2,403,166 |
| 3/15/2026 | Boxer Gene | General Counsel and Secretary | TAX_WITHHOLD | -482 | $44 | $21,030 |
| 3/15/2026 | Ruggles Lisa | Senior VP, Global Operations | TAX_WITHHOLD | -2,977 | $44 | $129,887 |
| Date | Filer | Relationship | Est. shares | Filing |
|---|---|---|---|---|
| 8/5/2026 | Hill John W | — | 3,500 | SEC |
| Date | Insider | Title | Relationship | Shares | Filing |
|---|---|---|---|---|---|
| 8/4/2026 | — | — | — | — | SEC |
| Institution | Shares | Value ($) | Change % | Filing date |
|---|---|---|---|---|
| Vanguard Group | 70,108,999 | $4,714,129,093 | — | 1/29/2026 |
| BlackRock | 38,561,085 | $2,858,918,861 | — | 8/13/2024 |
| BlackRock | 33,970,626 | $2,284,184,864 | — | 2/12/2026 |
| BlackRock | 33,808,184 | $1,363,822,157 | -0.5% | 5/13/2026 |
| State Street | 18,632,352 | $1,252,839,348 | — | 2/13/2026 |
| BlackRock | 33,813,969 | $957,611,618 | 0.0% | 8/7/2026 |
| State Street | 18,650,975 | $752,380,332 | 0.1% | 5/15/2026 |
| State Street | 18,410,876 | $521,396,008 | -1.3% | 8/7/2026 |
| Goldman Sachs | 9,254,712 | $373,335,103 | 146.7% | 5/15/2026 |
| Morgan Stanley | 5,291,136 | $355,776,152 | — | 5/27/2026 |
| Goldman Sachs | 3,751,528 | $252,252,754 | — | 3/25/2026 |
| AQR Capital | 8,445,474 | $239,175,807 | 568.8% | 8/14/2026 |
| DE Shaw | 5,909,623 | $238,394,192 | 552.6% | 5/15/2026 |
| Morgan Stanley | 5,412,615 | $218,344,980 | 2.3% | 5/15/2026 |
| Morgan Stanley | 5,485,870 | $155,359,900 | 1.4% | 8/13/2026 |
| Tiger Global | 2,259,109 | $151,902,489 | — | 2/17/2026 |
| JP Morgan Chase | 4,984,994 | $146,689,701 | 168.3% | 8/12/2026 |
| Goldman Sachs | 5,129,484 | $145,266,974 | -44.6% | 8/14/2026 |
| Fidelity (FMR) | 2,831,524 | $114,223,699 | 135.5% | 5/15/2026 |
| Fidelity (FMR) | 1,202,153 | $80,832,771 | — | 2/17/2026 |