Iridium Communications Inc. (IRDM) ownership: Top institutional holder: BlackRock, Inc. ($386.68M). Insider activity: Net Seller (7 buys, 13 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 13939618.00 | $386.68M | 2026-03-31 |
| VANGUARD GROUP INC | 10157227.00 | $176.53M | 2025-12-31 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6091749.00 | $168.99M | 2026-03-31 |
| Silver Heights Capital Management Inc | 5145479.00 | $142.74M | 2026-03-31 |
| STATE STREET CORP | 5050166.00 | $140.09M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4111325.00 | $114.05M | 2026-03-31 |
| AMERICAN CENTURY COMPANIES INC | 3469954.00 | $96.26M | 2026-03-31 |
| Gotham Asset Management, LLC | 3353971.00 | $93.04M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-20 | |
| Sell | null | 2026-04-06 | |
| Sell | null | 2026-04-02 | |
| Sell | null | 2026-03-31 | |
| Sell | null | 2026-03-31 | |
| Sell | null | 2026-03-31 | |
| Sell | null | 2026-03-31 | |
| Sell | null | 2026-03-31 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.