Iridium Communications Inc. - IRDM
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Apr 29, 2026 | SCHEDULE 13G | Vanguard Portfolio Management | 5.81% | 6,103,943 | View |
| Apr 02, 2026 | SCHEDULE 13D/A | — | 9.53% | — | View |
| Mar 26, 2026 | SCHEDULE 13G/A | The Vanguard Group | 0.0% | 0 | View |
| Mar 05, 2026 | SCHEDULE 13G/A | The Vanguard Group | 10.25% | 10,767,247 | View |
| Feb 13, 2026 | SCHEDULE 13G | Silver Heights Capital Management Inc | 5.0% | 5,251,133 | View |
| Feb 13, 2026 | SCHEDULE 13G/A | Silver Heights Capital Management Inc | 5.0% | 5,251,133 | View |
| Jan 08, 2026 | SCHEDULE 13G/A | BlackRock, Inc. | 12.5% | 13,072,774 | View |
| Dec 05, 2025 | SCHEDULE 13G/A | ARK Investment Management LLC | 3.93% | 4,116,849 | View |
| Dec 05, 2025 | SCHEDULE 13G/A | Catherine D. Wood | 3.93% | 4,116,849 | View |
| Nov 26, 2025 | SCHEDULE 13D/A | — | — | — | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.