Dynex Capital Inc
Ownership
Ownership Structure
Who owns Dynex Capital Inc (DX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 99.2% of the shares are freely tradable; institutional investors hold 45.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 7.43 | 18,437,985 | +14.6 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.69 | 9,145,837 | +7.4 | 06/30/2026 |
| Millennium Management LLC | 2.83 | 7,016,976 | +154.8 | 06/30/2026 |
| Marshall Wace Asset Management Ltd | 2.58 | 6,413,930 | +2,918.8 | 06/30/2026 |
| Geode Capital Management, LLC | 2.24 | 5,566,081 | +17.4 | 06/30/2026 |
| State Street Corp | 2.06 | 5,113,743 | +12.8 | 06/30/2026 |
| Ameriprise Financial Inc | 1.35 | 3,347,364 | +72.1 | 06/30/2026 |
| Two Sigma Investments LLC | 1.19 | 2,965,239 | +52.1 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.02 | 7,505,912 | +15.8 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.70 | 6,709,115 | -0.2 | 09/30/2026 |
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 |
|---|---|---|---|---|---|
| Boston Byron L | Co-CEO & Chairman of the Board | 892,747 | 9,463,118 $ | Oct 20, 2026 | direct |
| Connelly Terrence John JR | Chief Investment Officer | 58,695 | 622,167 $ | Sep 25, 2026 | direct |
| Sartori Michael Andrew | Chief Financial Officer | 36,579 | 387,737 $ | Oct 20, 2026 | direct |
| Popenoe Smriti Laxman | Co-CEO and President | 2,000 | 21,200 $ | Oct 20, 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 |
|---|---|---|---|---|---|---|
| Oct 20, 2026 | Boston Byron L | Co-CEO & Chairman of the Board | Buy | 9,180 | 10.89 | 99,970 |
| Oct 20, 2026 | Popenoe Smriti Laxman | Co-CEO and President | Buy | 2,000 | 25.18 | 50,360 |
| Oct 20, 2026 | Popenoe Smriti Laxman | Co-CEO and President | Buy | 10,000 | 10.62 | 106,200 |
| Oct 20, 2026 | Sartori Michael Andrew | Chief Financial Officer | Buy | 1,000 | 10.70 | 10,700 |
| Sep 25, 2026 | Connelly Terrence John JR | Chief Investment Officer | Buy | 2,500 | 11.18 | 27,950 |
| Sep 8, 2026 | Boston Byron L | Co-CEO & Chairman of the Board | Other | 15,667 | 12.89 | 201,948 |
| Sep 8, 2026 | Popenoe Smriti Laxman | Co-CEO and President | Other | 19,528 | 12.89 | 251,716 |
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: November 2, 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.