Iridium CommunicationsIRDM
13F holders, Q1 2026 (March 31)382holders +57
98new positions
43sold out
10famous investors
$27.71avg. 13F price*
At the end of Q1 2026, 382 institutions reported holding Iridium Communications Inc. (IRDM) in their 13F filings, up 57 from Q4 2025. 98 opened new positions and 43 sold out. The largest holders were BlackRock, Inc. ($386.7M), Vanguard Portfolio Management LLC ($169.0M) and Silver Heights Capital Management Inc ($142.7M). 10 famous investors held it, including Cathie Wood (0.4% of ARK Investment Management's portfolio), Joel Greenblatt (0.3% of Gotham Asset Management's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).
- Company
- Iridium Communications Inc.
- CUSIP
- 46269C102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 98 | $83.9M |
| Exits | 43 | $74.6M |
All 13F filers, Q4 2025 → Q1 2026: 10,486,974 shares bought and 14,451,389 shares sold, net −3,964,415 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 382 holders
| BlackRock, Inc. | 0.01% | Add +0.3% | 13,939,618 | $386.7M |
| Vanguard Portfolio Management LLC | 0.01% | — | 6,091,749 | $169.0M |
| Silver Heights Capital Management Inc | 54.85% | Reduce -2.0% | 5,145,479 | $142.7M |
| State Street Corp. | 0.00% | Add +6.1% | 5,050,166 | $140.1M |
| Vanguard Capital Management LLC | 0.00% | — | 4,111,325 | $114.0M |
| American Century Companies Inc. | 0.05% | Add +12.7% | 3,469,954 | $96.3M |
| Gotham Asset Management | 0.28% | Add +45.2% | 3,353,971 | $93.0M |
| AQR Capital Management | 0.04% | Add +509.0% | 2,917,827 | $80.9M |
| Dimensional Fund Advisors LP | 0.01% | Add +3.1% | 2,159,061 | $59.9M |
| Geode Capital Management, LLC | 0.00% | Add +5.2% | 2,007,011 | $55.7M |
| Man Group plc | 0.11% | Add +3.0% | 1,907,044 | $52.9M |
| ARK Investment Management | 0.37% | Reduce -39.4% | 1,726,802 | $47.9M |
| Morgan Stanley | 0.00% | Reduce -11.8% | 1,583,337 | $43.9M |
| Van Eck Associates Corp. | 0.03% | Add +24.9% | 1,504,628 | $41.7M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +13.3% | 1,366,005 | $37.9M |
| UBS Group AG | 0.01% | Add +0.9% | 1,284,561 | $35.6M |
| Schroder Investment Management Group | 0.03% | Add +34.4% | 1,282,639 | $34.4M |
| Bank of New York Mellon Corp | 0.01% | Reduce -2.0% | 1,150,450 | $31.9M |
| Arrowstreet Capital, Limited Partnership | 0.02% | Reduce -4.7% | 1,101,231 | $30.5M |
| Barclays PLC | 0.01% | Add +1.4% | 994,069 | $27.6M |
| Invesco Ltd. | 0.00% | Reduce -0.6% | 987,926 | $27.4M |
| Select Equity Group, L.P. | 0.14% | Add +12.8% | 942,519 | $26.1M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -60.0% | 928,388 | $25.8M |
| Jupiter Asset Management Ltd. | 0.13% | Add +10.5% | 893,282 | $24.8M |
| Pacer Advisors, Inc. | 0.07% | Reduce -34.5% | 890,382 | $24.7M |
| Northern Trust Corp. | 0.00% | Reduce -11.4% | 863,494 | $24.0M |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | Reduce -32.3% | 791,773 | $22.0M |
| Penserra Capital Management LLC | 0.25% | Reduce -11.4% | 755,728 | $21.0M |
| Amova Asset Management Americas, Inc. | 0.29% | Reduce -34.1% | 736,973 | $20.4M |
| JPMorgan Chase & Co. | 0.00% | Add +29.7% | 708,297 | $19.0M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 636,855 | $17.7M |
| Pinnacle Associates Ltd. | 0.20% | Reduce -7.2% | 562,741 | $15.6M |
| FMR LLC | 0.00% | Add +17.4% | 540,053 | $15.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.01% | Add +35.8% | 538,427 | $14.9M |
| Panagora Asset Management Inc. | 0.06% | New | 529,520 | $14.7M |
| Brown Advisory Inc. | 0.02% | Add +0.0% | 512,576 | $14.2M |
| Principal Financial Group Inc. | 0.01% | Add +2.1% | 508,290 | $14.1M |
| Millennium Management | 0.01% | Reduce -52.3% | 494,662 | $13.7M |
| Nuveen, LLC | 0.00% | Reduce -29.1% | 425,145 | $11.8M |
| Two Sigma Investments, LP | 0.01% | Reduce -42.5% | 402,428 | $11.2M |
| Stifel Financial Corp. | 0.01% | Add +31.4% | 397,887 | $11.0M |
| Legal & General Group Plc | 0.00% | Reduce -7.8% | 378,692 | $10.5M |
| Public Sector Pension Investment Board | 0.03% | Add +3.6% | 375,511 | $10.4M |
| Raymond James Financial Inc. | 0.00% | Add +12.5% | 368,276 | $10.2M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -0.3% | 359,530 | $10.0M |
| Russell Investments Group, Ltd. | 0.01% | Add +14.5% | 352,947 | $9.8M |
| First Trust Advisors LP | 0.01% | Reduce -17.8% | 352,249 | $9.8M |
| Bank of America Corp. | 0.00% | Add +62.3% | 351,234 | $9.7M |
| Janus Henderson Group PLC | 0.00% | Add +9.8% | 306,684 | $8.5M |
| Susquehanna International Group, LLP | 0.01% | Add +69.8% | 291,694 | $8.1M |
| Robertson Opportunity Capital, LLC | 3.07% | New | 287,346 | $8.0M |
| CX Institutional | 0.23% | New | 272,787 | $7.6M |
| Defiance ETFs, LLC | 0.10% | Reduce -54.9% | 255,175 | $7.1M |
| Nordea Investment Management AB | 0.01% | Reduce -4.4% | 255,788 | $7.0M |
| Rhumbline Advisers | 0.01% | Add +4.3% | 234,248 | $6.5M |
| Ameriprise Financial Inc. | 0.00% | Add +18.1% | 233,301 | $6.5M |
| Blair William & Co. | 0.02% | Reduce -6.3% | 220,251 | $6.1M |
| Victory Capital Management Inc. | 0.00% | Reduce -32.0% | 219,206 | $6.1M |
| Bessemer Group Inc. | 0.01% | Add +54682.1% | 217,485 | $6.0M |
| ArchPoint Investors | 1.30% | No change | 197,066 | $5.5M |
| Los Angeles Capital Management LLC | 0.02% | Add +57769.9% | 192,128 | $5.3M |
| Swiss National Bank | 0.00% | Reduce -1.2% | 186,400 | $5.2M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.02% | Reduce -9.4% | 161,046 | $4.5M |
| Morgens Waterfall Vintiadis & Co. Inc. | 5.26% | New | 154,000 | $4.3M |
| Retirement Systems of Alabama | 0.01% | No change | 151,400 | $4.2M |
| Holocene Advisors, LP | 0.01% | Add +5.8% | 149,354 | $4.1M |
| PDT Partners, LLC | 0.23% | No change | 138,207 | $3.8M |
| Renaissance Technologies | 0.01% | New | 128,100 | $3.6M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -35.2% | 123,555 | $3.4M |
| Daiwa Securities Group Inc. | 0.01% | Add +6.9% | 120,500 | $3.3M |
| BNP Paribas Financial Markets | 0.00% | Reduce -34.8% | 119,989 | $3.3M |
| Mariner, LLC | 0.00% | New | 117,695 | $3.3M |
| Algert Global LLC | 0.05% | Reduce -31.7% | 115,088 | $3.2M |
| Citigroup Inc. | 0.00% | Add +27.6% | 114,021 | $3.2M |
| Oak Thistle LLC | 0.30% | New | 113,057 | $3.1M |
| California State Teachers Retirement System | 0.00% | Add +22.2% | 112,063 | $3.1M |
| New York State Teachers Retirement System | 0.01% | Reduce -2.6% | 111,212 | $3.1M |
| Advisors Asset Management, Inc. | 0.05% | Add +25.6% | 109,824 | $3.0M |
| Point72 Asset Management | 0.01% | Reduce -57.0% | 106,833 | $3.0M |
| Bridgewater Associates | 0.01% | Reduce -74.6% | 106,600 | $3.0M |
| Icon Advisers Inc. | 0.70% | Reduce -2.7% | 106,467 | $3.0M |
| Envestnet Asset Management Inc. | 0.00% | New | 106,301 | $2.9M |
| Alliancebernstein L.P. | 0.00% | Reduce -0.1% | 168,896 | $2.9M |
| CANADA LIFE ASSURANCE Co | 0.01% | Reduce -2.0% | 103,589 | $2.9M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Add +6.8% | 102,676 | $2.8M |
| Aquatic Capital Management LLC | 0.08% | Add +226.7% | 100,576 | $2.8M |
| Paralel Advisors LLC | 0.11% | No change | 97,919 | $2.7M |
| Prudential Financial Inc. | 0.00% | Reduce -0.5% | 96,254 | $2.7M |
| T. Rowe Price Associates Inc. | 0.00% | Add +6.5% | 95,799 | $2.7M |
| Quadrature Capital Ltd | 0.03% | New | 89,685 | $2.5M |
| Sei Investments Co. | 0.00% | Add +123.3% | 88,790 | $2.5M |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 85,441 | $2.4M |
| D. E. Shaw & Co. | 0.00% | Add +27.4% | 83,333 | $2.3M |
| Creative Planning | 0.00% | Add +94.5% | 79,779 | $2.2M |
| Thrivent Financial for Lutherans | 0.00% | Reduce -6.2% | 78,877 | $2.2M |
| State of Wisconsin Investment Board | 0.00% | Reduce -2.9% | 77,203 | $2.1M |
| SIH Partners, LLLP | 0.06% | New | 75,691 | $2.1M |
| Edgestream Partners, L.P. | 0.07% | New | 75,082 | $2.1M |
| Brooklyn Investment Group | 0.06% | New | 71,837 | $2.0M |
| Vanguard Investments Australia, Ltd. | 0.01% | — | 71,253 | $2.0M |
"% of holder's portfolio" is IRDM's weight in each manager's 13F, not the share of Iridium Communications Inc. the manager owns.