Iridium CommunicationsIRDM
13F holders, Q1 2025 (March 31)351holders +2
47new positions
45sold out
11famous investors
$27.32avg. 13F price*
At the end of Q1 2025, 351 institutions reported holding Iridium Communications Inc. (IRDM) in their 13F filings, up 2 from Q4 2024. 47 opened new positions and 45 sold out. The largest holders were BlackRock, Inc. ($314.8M), Vanguard Group Inc. ($268.8M) and Baron Capital (BAMCO) ($253.3M). 11 famous investors held it, including Cathie Wood (1.3% of ARK Investment Management's portfolio), Ron Baron (0.7% of Baron Capital (BAMCO)'s portfolio) and Joel Greenblatt (0.2% of Gotham Asset Management's portfolio).
- Company
- Iridium Communications Inc.
- CUSIP
- 46269C102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 47 | $34.3M |
| Exits | 45 | $32.5M |
All 13F filers, Q4 2024 → Q1 2025: 13,061,511 shares bought and 9,288,805 shares sold, net +3,772,706 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 351 holders
| BlackRock, Inc. | 0.01% | Reduce -9.3% | 11,522,163 | $314.8M |
| Vanguard Group Inc. | 0.00% | Reduce -9.0% | 9,837,714 | $268.8M |
| Baron Capital (BAMCO) | 0.74% | Reduce -13.9% | 9,271,284 | $253.3M |
| ARK Investment Management | 1.34% | Add +95.1% | 4,891,677 | $133.6M |
| State Street Corp. | 0.01% | Add +1.6% | 4,455,603 | $121.7M |
| Sumitomo Mitsui Trust Group, Inc. | 0.08% | Add +37.6% | 3,893,145 | $106.4M |
| Amova Asset Management Americas, Inc. | 1.37% | Add +37.5% | 3,889,045 | $106.2M |
| Silver Heights Capital Management Inc | 46.26% | Add +0.3% | 3,726,863 | $101.8M |
| Van Berkom & Associates Inc. | 2.53% | Reduce -9.0% | 2,885,345 | $78.8M |
| Dimensional Fund Advisors LP | 0.02% | Add +22.0% | 2,516,469 | $68.7M |
| American Century Companies Inc. | 0.04% | Add +26.6% | 2,198,343 | $60.1M |
| Morgan Stanley | 0.00% | Add +16.2% | 2,188,488 | $59.8M |
| Schroder Investment Management Group | 0.06% | Reduce -4.2% | 2,120,845 | $58.4M |
| Geode Capital Management, LLC | 0.00% | Add +0.7% | 2,020,610 | $55.2M |
| T. Rowe Price Associates Inc. | 0.01% | Add +13.7% | 1,945,852 | $53.2M |
| Northern Trust Corp. | 0.01% | Reduce -5.9% | 1,719,684 | $47.0M |
| ArrowMark Colorado Holdings LLC | 0.70% | Reduce -24.7% | 1,572,402 | $43.0M |
| Millennium Management | 0.04% | Add +82.2% | 1,447,889 | $39.6M |
| Bank of New York Mellon Corp | 0.01% | Reduce -0.8% | 1,287,755 | $35.2M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -1.0% | 1,082,279 | $29.6M |
| Pacer Advisors, Inc. | 0.07% | Add +38.5% | 1,026,681 | $28.0M |
| Barclays PLC | 0.01% | Reduce -7.0% | 919,968 | $25.1M |
| Norges Bank | 0.00% | Reduce -7.5% | 900,509 | $24.6M |
| Select Equity Group, L.P. | 0.11% | Add +18.1% | 887,168 | $24.2M |
| Gotham Asset Management | 0.20% | Add +25.0% | 879,385 | $24.0M |
| FMR LLC | 0.00% | Reduce -3.5% | 812,490 | $22.2M |
| Anchor Capital Management Company, LLC | 21.20% | Add +7.8% | 775,917 | $21.2M |
| Pinnacle Associates Ltd. | 0.31% | Reduce -3.9% | 764,065 | $20.9M |
| JPMorgan Chase & Co. | 0.00% | Add +16.9% | 738,824 | $20.2M |
| Invesco Ltd. | 0.00% | Add +9.1% | 718,843 | $19.6M |
| Bank of America Corp. | 0.00% | Add +178.2% | 678,459 | $18.5M |
| Raymond James Financial Inc. | 0.01% | Add +6.4% | 645,636 | $17.6M |
| Voya Investment Management LLC | 0.02% | Add +47.3% | 633,796 | $17.3M |
| Nuveen, LLC | 0.00% | — | 576,970 | $15.8M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +27.3% | 548,381 | $15.0M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +16.2% | 539,566 | $14.7M |
| Brown Advisory Inc. | 0.02% | Reduce -0.1% | 510,292 | $13.9M |
| Cubist Systematic Strategies, LLC | 0.18% | Add +385.1% | 507,355 | $13.9M |
| UBS Group AG | 0.00% | Add +25.4% | 493,197 | $13.5M |
| Legal & General Group Plc | 0.00% | Reduce -0.8% | 421,217 | $11.5M |
| Citadel Advisors | 0.01% | Add +39.0% | 415,348 | $11.3M |
| AQR Capital Management | 0.01% | Reduce -56.4% | 410,476 | $11.1M |
| Qube Research & Technologies Ltd | 0.02% | Add +12.4% | 392,334 | $10.7M |
| Trexquant Investment LP | 0.12% | Reduce -11.5% | 390,325 | $10.7M |
| BNP Paribas Financial Markets | 0.01% | Add +50.4% | 320,535 | $8.8M |
| Nordea Investment Management AB | 0.01% | Add +25.3% | 311,506 | $8.5M |
| Rhumbline Advisers | 0.01% | Reduce -5.5% | 299,969 | $8.2M |
| Renaissance Technologies | 0.01% | Add +1750.9% | 296,699 | $8.1M |
| Retirement Systems of Alabama | 0.03% | Reduce -2.1% | 283,870 | $7.8M |
| Man Group plc | 0.02% | Add +52.2% | 279,122 | $7.6M |
| Twinbeech Capital LP | 0.14% | New | 277,022 | $7.6M |
| Van Eck Associates Corp. | 0.01% | Add +88.0% | 262,482 | $7.2M |
| Jupiter Asset Management Ltd. | 0.07% | New | 257,689 | $7.0M |
| Principal Financial Group Inc. | 0.00% | Reduce -3.9% | 251,019 | $6.9M |
| First Trust Advisors LP | 0.01% | Reduce -5.6% | 249,846 | $6.8M |
| Jane Street Group, LLC | 0.01% | Add +64.9% | 239,354 | $6.5M |
| Panagora Asset Management Inc. | 0.03% | Add +2164.2% | 233,822 | $6.4M |
| Goldman Sachs Group Inc. | 0.00% | Add +16.7% | 232,231 | $6.3M |
| Crossmark Global Holdings, Inc. | 0.11% | Add +467.6% | 224,764 | $6.1M |
| D. E. Shaw & Co. | 0.01% | Reduce -53.4% | 218,863 | $6.0M |
| Blair William & Co. | 0.02% | Reduce -21.9% | 203,961 | $5.6M |
| Swiss National Bank | 0.00% | Reduce -5.3% | 198,500 | $5.4M |
| Marshall Wace, LLP | 0.01% | Add +1452.6% | 195,254 | $5.3M |
| California Public Employees Retirement System | 0.00% | Add +3.4% | 193,113 | $5.3M |
| Point72 Asset Management | 0.02% | Reduce -29.4% | 190,803 | $5.2M |
| Robertson Opportunity Capital, LLC | 1.96% | No change | 188,246 | $5.1M |
| Los Angeles Capital Management LLC | 0.02% | Add +182.3% | 185,658 | $5.1M |
| Alliancebernstein L.P. | 0.00% | Add +10.6% | 183,015 | $5.0M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.03% | Reduce -2.8% | 182,892 | $5.0M |
| Jump Financial, LLC | 0.07% | Add +64.8% | 176,336 | $4.8M |
| Acadian Asset Management LLC | 0.01% | Add +201.7% | 174,818 | $4.8M |
| State of Wisconsin Investment Board | 0.01% | Add +1.8% | 171,057 | $4.7M |
| Engineers Gate Manager LP | 0.08% | Add +68.6% | 168,356 | $4.6M |
| ExodusPoint Capital Management, LP | 0.06% | Add +41.7% | 160,124 | $4.4M |
| Cibc World Market Inc. | 0.01% | Add +79.7% | 158,888 | $4.3M |
| Sei Investments Co. | 0.01% | Add +1.0% | 155,271 | $4.2M |
| Ameriprise Financial Inc. | 0.00% | Add +27.4% | 153,439 | $4.2M |
| HRT Financial LP | 0.03% | Add +98.9% | 152,623 | $4.2M |
| LBP Am SA | 0.06% | Add +22.3% | 149,294 | $4.1M |
| Verition Fund Management LLC | 0.02% | Add +138.6% | 137,867 | $3.8M |
| Algert Global LLC | 0.09% | Reduce -29.5% | 136,742 | $3.7M |
| HSBC Holdings PLC | 0.00% | Reduce -31.0% | 130,405 | $3.6M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Add +34.8% | 125,390 | $3.4M |
| Capital Fund Management S.A. | 0.04% | Add +51.4% | 124,288 | $3.4M |
| Corebridge Financial, Inc. | 0.02% | Reduce -6.7% | 120,352 | $3.3M |
| Private Advisor Group, LLC | 0.02% | Add +24.0% | 119,876 | $3.3M |
| Aquatic Capital Management LLC | 0.08% | Add +63.5% | 116,194 | $3.2M |
| New York State Teachers Retirement System | 0.01% | Add +1.8% | 115,054 | $3.1M |
| Thrivent Financial for Lutherans | 0.01% | Reduce -10.5% | 113,936 | $3.1M |
| Edgestream Partners, L.P. | 0.10% | New | 104,462 | $2.9M |
| California State Teachers Retirement System | 0.00% | Reduce -1.4% | 98,738 | $2.7M |
| Paralel Advisors LLC | 0.11% | No change | 95,977 | $2.6M |
| Penserra Capital Management LLC | 0.04% | Add +20.3% | 92,133 | $2.5M |
| Macquarie Group Ltd. | 0.00% | Add +2.6% | 88,909 | $2.4M |
| State Board of Administration of Florida Retirement System | 0.00% | Add +2.6% | 87,746 | $2.4M |
| Agf Management Ltd. | 0.01% | Reduce -1.1% | 86,074 | $2.4M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -5.3% | 83,478 | $2.3M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +3.1% | 82,963 | $2.3M |
| Bridgewater Associates | 0.01% | New | 81,731 | $2.2M |
| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 0.26% | Reduce -1.9% | 81,265 | $2.2M |
"% of holder's portfolio" is IRDM's weight in each manager's 13F, not the share of Iridium Communications Inc. the manager owns.