Iridium Communications Inc (IRDM)
Who owns Iridium Communications Inc (IRDM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 88.1% of the shares are freely tradable; institutional investors hold 90.1%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 13.16 | 13,939,618 | +0.3 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.75 | 6,091,749 | +0.0 | 03/31/2026 |
| Silver Heights Capital Management Inc. | 4.86 | 5,145,479 | -2.0 | 03/31/2026 |
| State Street Corp | 4.77 | 5,050,166 | +6.1 | 03/31/2026 |
| Vanguard Capital Management, LLC | 3.88 | 4,111,325 | +0.0 | 03/31/2026 |
| American Century Companies Inc | 3.27 | 3,469,954 | +12.7 | 03/31/2026 |
| Gotham Asset Management, LLC | 3.17 | 3,353,971 | +45.2 | 03/31/2026 |
| AQR Capital Management LLC | 2.75 | 2,917,827 | +509.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 6.09 | 6,447,732 | +0.0 | 07/28/2026 |
| Avantis US Small Cap Value ETF | 3.89 | 4,125,869 | -0.1 | 07/29/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 10. Jul 2026 | Thoma Donald Lee | EVP, Aireon | Other | 41,949 | 0.00 | – |
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: July 31, 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.