Who owns Iridium Communications Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of IRDM from SEC Form 13F filings across 484 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 484 institutions disclosed 91.4M shares of Iridium Communications Inc. worth $5.01B — about 85.4% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
484
13F holders
$5.01B
value, 2026 filers
85.4%
of shares outstanding (91.4M sh)
163
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of IRDM's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 13.4M | $737.6M | 0.0% | 12.6% | -3.5% |
| 2 | AQR CAPITAL MANAGEMENT LLC | 6.8M | $374.3M | 0.1% | 6.4% | +134.7% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.4M | $298.4M | 0.0% | 5.1% | -10.7% |
| 4 | AMERICAN CENTURY COMPANIES INC | 4.9M | $266.4M | 0.1% | 4.5% | +40.0% |
| 5 | STATE STREET CORP | 4.7M | $259.6M | 0.0% | 4.4% | -6.3% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 4.2M | $232.1M | 0.0% | 4% | +2.9% |
| 7 | Silver Heights Capital Management Inc | 3.3M | $179.6M | 55.4% | 3.1% | -36.4% |
| 8 | Gotham Asset Management, LLC | 2.5M | $137.9M | 0.3% | 2.4% | -25.0% |
| 9 | DIMENSIONAL FUND ADVISORS LP | 2.4M | $129.3M | 0.0% | 2.2% | +9.2% |
| 10 | VAN ECK ASSOCIATES CORP | 2.3M | $124.6M | 0.1% | 2.1% | +50.9% |
| 11 | Pacer Advisors, Inc.NEW | 2.2M | $118.9M | 0.3% | 2% | new |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 2.0M | $112.2M | 0.0% | 1.9% | +1.9% |
| 13 | MORGAN STANLEY | 1.5M | $83.2M | 0.0% | 1.4% | -4.2% |
| 14 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3M | $72.3M | 0.0% | 1.2% | -3.5% |
| 15 | ARK Investment Management LLC | 1.2M | $66.6M | 0.4% | 1.1% | -29.6% |
| 16 | Bank of New York Mellon Corp | 1.1M | $62.8M | 0.0% | 1.1% | -0.6% |
| 17 | UBS Group AG | 1.0M | $55.2M | 0.0% | 0.9% | -21.7% |
| 18 | Balyasny Asset Management L.P. | 967,572 | $53.1M | 0.1% | 0.9% | +683.1% |
| 19 | Invesco Ltd. | 908,134 | $49.8M | 0.0% | 0.8% | -8.1% |
| 20 | NORTHERN TRUST CORP | 854,112 | $46.8M | 0.0% | 0.8% | -1.1% |
| 21 | Penserra Capital Management LLC | 838,592 | $46.0M | 0.4% | 0.8% | +11.0% |
| 22 | JPMORGAN CHASE & CO | 789,191 | $43.3M | 0.0% | 0.7% | +11.4% |
| 23 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 754,424 | $41.4M | 0.0% | 0.7% | -31.5% |
| 24 | GOLDMAN SACHS GROUP INC | 726,762 | $39.9M | 0.0% | 0.7% | -21.7% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 657,958 | $36.1M | 0.0% | 0.6% | +3.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.