Iridium CommunicationsIRDM
13F holders, Q4 2025 (December 31)325holders +1
52new positions
59sold out
10famous investors
$17.39avg. 13F price*
At the end of Q4 2025, 325 institutions reported holding Iridium Communications Inc. (IRDM) in their 13F filings, up 1 from Q3 2025. 52 opened new positions and 59 sold out. The largest holders were BlackRock, Inc. ($241.4M), Vanguard Group Inc. ($176.5M) and Silver Heights Capital Management Inc ($91.3M). 10 famous investors held it, including Cathie Wood (0.3% of ARK Investment Management's portfolio), Joel Greenblatt (0.1% of Gotham Asset Management's portfolio) and Paul Tudor Jones (0.1% of Tudor Investment Corporation's portfolio).
- Company
- Iridium Communications Inc.
- CUSIP
- 46269C102
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 52 | $38.7M |
| Exits | 59 | $98.6M |
All 13F filers, Q3 2025 → Q4 2025: 15,153,441 shares bought and 23,408,240 shares sold, net −8,254,799 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 325 holders
| BlackRock, Inc. | 0.00% | Add +26.3% | 13,891,150 | $241.4M |
| Vanguard Group Inc. | 0.00% | Add +7.1% | 10,157,227 | $176.5M |
| Silver Heights Capital Management Inc | 36.21% | Add +1.2% | 5,251,133 | $91.3M |
| State Street Corp. | 0.00% | Add +18.0% | 4,761,749 | $82.8M |
| American Century Companies Inc. | 0.03% | Add +6.9% | 3,078,679 | $53.5M |
| ARK Investment Management | 0.33% | Reduce -56.1% | 2,850,606 | $49.5M |
| Goldman Sachs Group Inc. | 0.01% | Add +21.4% | 2,323,170 | $40.4M |
| Gotham Asset Management | 0.15% | Add +651.1% | 2,309,750 | $40.1M |
| Dimensional Fund Advisors LP | 0.01% | Reduce -10.1% | 2,093,124 | $36.4M |
| Geode Capital Management, LLC | 0.00% | Add +12.0% | 1,907,797 | $33.2M |
| Man Group plc | 0.06% | Reduce -8.0% | 1,851,528 | $32.2M |
| Morgan Stanley | 0.00% | Reduce -2.3% | 1,795,202 | $31.2M |
| Pacer Advisors, Inc. | 0.06% | Reduce -22.1% | 1,358,706 | $23.6M |
| UBS Group AG | 0.00% | Reduce -7.0% | 1,273,219 | $22.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +15.4% | 1,206,189 | $21.0M |
| Van Eck Associates Corp. | 0.02% | Add +57.9% | 1,204,302 | $20.9M |
| Bank of New York Mellon Corp | 0.00% | Add +9.5% | 1,173,761 | $20.4M |
| Sumitomo Mitsui Trust Group, Inc. | 0.01% | Reduce -73.1% | 1,170,252 | $20.3M |
| Arrowstreet Capital, Limited Partnership | 0.01% | Add +23.2% | 1,155,467 | $20.1M |
| Citadel Advisors | 0.01% | Reduce -30.9% | 1,140,215 | $19.8M |
| Amova Asset Management Americas, Inc. | 0.22% | Reduce -74.1% | 1,117,952 | $19.4M |
| Millennium Management | 0.01% | Reduce -65.9% | 1,037,281 | $18.0M |
| Invesco Ltd. | 0.00% | Add +12.0% | 994,205 | $17.3M |
| Barclays PLC | 0.01% | Add +82.4% | 980,847 | $17.0M |
| Northern Trust Corp. | 0.00% | Reduce -6.6% | 974,401 | $16.9M |
| Schroder Investment Management Group | 0.01% | Reduce -3.8% | 954,707 | $16.7M |
| Penserra Capital Management LLC | 0.18% | Add +9.9% | 853,199 | $14.8M |
| Select Equity Group, L.P. | 0.07% | Reduce -21.3% | 835,881 | $14.5M |
| Voloridge Investment Management, LLC | 0.05% | Add +113.5% | 812,037 | $14.1M |
| Jupiter Asset Management Ltd. | 0.11% | Reduce -4.9% | 808,392 | $14.0M |
| Two Sigma Investments, LP | 0.02% | Reduce -5.3% | 700,544 | $12.2M |
| Tudor Investment Corporation | 0.07% | Add +0.8% | 666,046 | $11.6M |
| Pinnacle Associates Ltd. | 0.14% | Reduce -0.2% | 606,384 | $10.5M |
| Nuveen, LLC | 0.00% | Add +62.4% | 599,400 | $10.4M |
| Defiance ETFs, LLC | 0.32% | — | 565,154 | $9.9M |
| JPMorgan Chase & Co. | 0.00% | Reduce -10.9% | 546,024 | $9.5M |
| Trexquant Investment LP | 0.08% | Reduce -6.7% | 531,620 | $9.2M |
| Brown Advisory Inc. | 0.01% | Reduce -0.1% | 512,354 | $8.9M |
| Qube Research & Technologies Ltd | 0.01% | Add +8.6% | 506,601 | $8.8M |
| Principal Financial Group Inc. | 0.00% | Add +111.3% | 497,588 | $8.6M |
| AQR Capital Management | 0.00% | Add +274.1% | 479,114 | $8.3M |
| FMR LLC | 0.00% | Add +20.3% | 459,861 | $8.0M |
| First Trust Advisors LP | 0.01% | Add +3.3% | 428,349 | $7.4M |
| Maxi Investments CY Ltd | 1.34% | New | 424,000 | $7.4M |
| Bridgewater Associates | 0.03% | Add +259.7% | 419,838 | $7.3M |
| Legal & General Group Plc | 0.00% | Add +26.9% | 410,893 | $7.1M |
| Mitsubishi UFJ Asset Management Co., Ltd. | 0.00% | Add +130.2% | 396,642 | $7.0M |
| Capital Fund Management S.A. | 0.06% | Add +171.9% | 378,575 | $6.6M |
| Public Sector Pension Investment Board | 0.02% | New | 362,500 | $6.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -11.3% | 360,759 | $6.3M |
| Two Sigma Advisers, LP | 0.01% | Add +56.8% | 353,826 | $6.1M |
| Raymond James Financial Inc. | 0.00% | Reduce -24.3% | 327,257 | $5.7M |
| Victory Capital Management Inc. | 0.00% | Add +29.2% | 322,542 | $5.6M |
| Russell Investments Group, Ltd. | 0.01% | Add +153.8% | 308,250 | $5.4M |
| Stifel Financial Corp. | 0.00% | Add +168.3% | 302,780 | $5.3M |
| Crossmark Global Holdings, Inc. | 0.07% | Reduce -2.7% | 291,486 | $5.1M |
| Janus Henderson Group PLC | 0.00% | Add +524.4% | 279,359 | $4.9M |
| Nordea Investment Management AB | 0.00% | Reduce -15.8% | 267,615 | $4.6M |
| Point72 Asset Management | 0.01% | New | 248,461 | $4.3M |
| Dark Forest Capital Management LP | 0.20% | Reduce -22.2% | 248,011 | $4.3M |
| Blair William & Co. | 0.01% | Add +3.2% | 234,958 | $4.1M |
| Rhumbline Advisers | 0.00% | Reduce -15.9% | 224,509 | $3.9M |
| Bank of America Corp. | 0.00% | Reduce -86.3% | 216,371 | $3.8M |
| Baron Capital (BAMCO) | 0.01% | Reduce -70.7% | 200,000 | $3.5M |
| Ameriprise Financial Inc. | 0.00% | Add +111.3% | 197,454 | $3.4M |
| ArchPoint Investors | 0.81% | Add +0.7% | 197,066 | $3.4M |
| Carolina Wealth Advisors, LLC | 1.52% | Reduce -4.6% | 196,131 | $3.4M |
| Balyasny Asset Management L.P. | 0.01% | Reduce -35.0% | 190,558 | $3.3M |
| Swiss National Bank | 0.00% | No change | 188,700 | $3.3M |
| BNP Paribas Financial Markets | 0.00% | Add +17.3% | 184,149 | $3.2M |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.02% | Reduce -1.7% | 177,720 | $3.1M |
| Susquehanna International Group, LLP | 0.00% | Reduce -28.2% | 171,762 | $3.0M |
| Acadian Asset Management LLC | 0.00% | New | 170,361 | $3.0M |
| Alliancebernstein L.P. | 0.00% | Reduce -14.7% | 169,079 | $2.9M |
| Algert Global LLC | 0.05% | New | 168,598 | $2.9M |
| Worldquant Millennium Advisors LLC | 0.01% | Reduce -9.8% | 153,949 | $2.7M |
| Squarepoint Ops LLC | 0.01% | Add +0.7% | 153,756 | $2.7M |
| Engineers Gate Manager LP | 0.03% | Reduce -48.1% | 151,605 | $2.6M |
| Retirement Systems of Alabama | 0.01% | Reduce -45.9% | 151,400 | $2.6M |
| Marshall Wace, LLP | 0.00% | Add +142.1% | 148,836 | $2.6M |
| Holocene Advisors, LP | 0.01% | Add +3.2% | 141,135 | $2.5M |
| Redwood Investment Management, LLC | 0.27% | New | 138,991 | $2.4M |
| Amundi | 0.00% | Add +9.6% | 138,937 | $2.4M |
| PDT Partners, LLC | 0.16% | Add +53.2% | 138,207 | $2.4M |
| New York State Teachers Retirement System | 0.00% | Add +0.4% | 114,210 | $2.0M |
| Voya Investment Management LLC | 0.00% | Reduce -35.4% | 113,473 | $2.0M |
| Daiwa Securities Group Inc. | 0.01% | Add +67.5% | 112,700 | $2.0M |
| Icon Advisers Inc. | 0.42% | Add +112.3% | 109,467 | $1.9M |
| ExodusPoint Capital Management, LP | 0.02% | Reduce -7.5% | 109,244 | $1.9M |
| Inspire Investing, LLC | 0.17% | Add +275.1% | 109,165 | $1.9M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +27.9% | 105,755 | $1.8M |
| Jane Street Group, LLC | 0.00% | Reduce -79.5% | 103,282 | $1.8M |
| Paralel Advisors LLC | 0.07% | No change | 97,919 | $1.7M |
| Prudential Financial Inc. | 0.00% | Add +825.6% | 96,704 | $1.7M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +82.0% | 96,127 | $1.7M |
| Weiss Asset Management LP | 0.03% | Reduce -16.9% | 96,497 | $1.7M |
| Intech Investment Management LLC | 0.01% | Add +23.1% | 92,900 | $1.6M |
| California State Teachers Retirement System | 0.00% | Reduce -0.3% | 91,701 | $1.6M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -14.6% | 89,910 | $1.6M |
| Citigroup Inc. | 0.00% | Reduce -71.2% | 89,384 | $1.6M |
"% of holder's portfolio" is IRDM's weight in each manager's 13F, not the share of Iridium Communications Inc. the manager owns.