IRDM Iridium Communications Inc.
Iridium Communications Inc. (IRDM) Institutional Ownership
What the institutions did with IRDM last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 13.4M | 14.8% |
| AQR CAPITAL MANAGEMENT LLC | 6.8M | 7.5% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4M | 6.0% |
| AMERICAN CENTURY COMPANIES INC | 4.9M | 5.3% |
| STATE STREET CORP | 4.7M | 5.2% |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.2M | 4.6% |
| Silver Heights Capital Management Inc | 3.3M | 3.6% |
| Gotham Asset Management, LLC | 2.5M | 2.8% |
| DIMENSIONAL FUND ADVISORS LP | 2.4M | 2.6% |
| VAN ECK ASSOCIATES CORP | 2.3M | 2.5% |
| Pacer Advisors, Inc. | 2.2M | 2.4% |
| GEODE CAPITAL MANAGEMENT, LLC | 2.0M | 2.2% |
| MORGAN STANLEY | 1.5M | 1.7% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3M | 1.4% |
| ARK Investment Management LLC | 1.2M | 1.3% |
| Bank of New York Mellon Corp | 1.1M | 1.3% |
| UBS Group AG | 1.0M | 1.1% |
| Balyasny Asset Management L.P. | 967.6K | 1.1% |
| Invesco Ltd. | 908.1K | 1.0% |
| NORTHERN TRUST CORP | 854.1K | 0.9% |
| Penserra Capital Management LLC | 838.6K | 0.9% |
| JPMORGAN CHASE & CO | 789.2K | 0.9% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 754.4K | 0.8% |
| GOLDMAN SACHS GROUP INC | 726.8K | 0.8% |
| VANGUARD FIDUCIARY TRUST CO | 658.0K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| AQR CAPITAL MANAGEMENT LLC | Increased | 2.9M | 6.8M | +3.9M |
| Silver Heights Capital Management Inc | Reduced | 5.1M | 3.3M | -1.9M |
| Man Group plc | Reduced | 1.9M | 416.4K | -1.5M |
| AMERICAN CENTURY COMPANIES INC | Increased | 3.5M | 4.9M | +1.4M |
| Pacer Advisors, Inc. | Increased | 890.4K | 2.2M | +1.3M |
| Select Equity Group, L.P. | Sold Out | 942.5K | 0 | -942.5K |
| BARCLAYS PLC | Reduced | 994.1K | 86.6K | -907.5K |
| JUPITER ASSET MANAGEMENT LTD | Sold Out | 893.3K | 0 | -893.3K |
| Balyasny Asset Management L.P. | Increased | 123.6K | 967.6K | +844.0K |
| Gotham Asset Management, LLC | Reduced | 3.4M | 2.5M | -839.7K |
| VAN ECK ASSOCIATES CORP | Increased | 1.5M | 2.3M | +766.2K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 6.1M | 5.4M | -651.4K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Reduced | 1.3M | 641.9K | -640.8K |
| ARK Investment Management LLC | Reduced | 1.7M | 1.2M | -511.7K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | New | 0 | 510.0K | +510.0K |
| BlackRock, Inc. | Reduced | 13.9M | 13.4M | -492.3K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 128.1K | 609.8K | +481.7K |
| Sculptor Capital LP | New | 0 | 469.0K | +469.0K |
| Jefferies Financial Group Inc. | New | 0 | 396.1K | +396.1K |
| IMC-Chicago, LLC | New | 0 | 354.4K | +354.4K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 1.1M | 754.4K | -346.8K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 494.7K | 153.2K | -341.5K |
| STIFEL FINANCIAL CORP | Reduced | 397.9K | 79.0K | -318.8K |
| STATE STREET CORP | Reduced | 5.1M | 4.7M | -316.5K |
| Tema ETFs LLC | New | 0 | 309.2K | +309.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.