Compass Inc
Ownership
Ownership Structure
Who owns Compass Inc (COMP)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 97.2% of the shares are freely tradable; institutional investors hold 89.3%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| FMR Inc | 14.01 | 107,554,602 | +54.7 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 7.82 | 60,036,878 | +0.0 | 03/31/2026 |
| BlackRock Inc | 6.58 | 50,527,919 | -2.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.02 | 30,876,947 | +0.0 | 03/31/2026 |
| SB INVESTMENT ADVISERS (UK) LTD | 2.80 | 21,504,702 | -2.3 | 06/30/2026 |
| Capital Research & Mgmt Co - Division 3 | 2.78 | 21,368,816 | +7.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard Real Estate Index Investor | 3.37 | 25,900,713 | -0.1 | 07/31/2026 |
| Vanguard MStar Total Stk Mkt Idx Invest | 3.10 | 23,802,112 | +0.3 | 07/31/2026 |
| Strategic Advisers Fidelity US TtlStk | 2.80 | 21,514,371 | +0.0 | 07/31/2026 |
| iShares Russell 2000 ETF | 2.39 | 18,371,495 | -0.6 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Reffkin Robert L. | Chairman and CEO | 7,757,748 | 81,456,354 $ | Aug 3, 2026 | indirect |
| Sordello Steven J | Director | 249,776 | 2,622,648 $ | Aug 3, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 3, 2026 | Sordello Steven J | Director | Other | 2,419 | 0.00 | – |
| Aug 3, 2026 | Reffkin Robert L. | Chairman and CEO | Sell | 23,456 | 11.70 | 274,433 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.