Iridium Communications Inc.
IRDM- Exchange
- Nasdaq
- Industry
- Communications Services, NEC
- SEC CIK
- 0001418819
In the last 90 days, Iridium Communications Inc. insiders filed 0 open-market purchases and 8 sales; 483 institutions reported holding it in 13F filings for Q2 2026, worth $5.01B in total; ARK Invest is the only superinvestor holding it.
13F holders, Q3 2025
Institutional positions in Iridium Communications Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 324
- −5 vs. Q2 2025
- Shares held
- 101.5M
- +532.3K (+0.5%) vs. Q2 2025
- Total value
- $1.79B
- −$1.26B (−41.3%) vs. Q2 2025
- New holders
- 62
- 117 more added
- Sold out
- 67
- 112 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting IRDM on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 483 | $5.01B |
| Q1 2026 | 382 | $2.50B |
| Q4 2025 | 325 | $1.63B |
| Q3 2025 | 324 | $1.79B |
| Q2 2025 | 332 | $3.06B |
| Q1 2025 | 351 | $2.84B |
| Q4 2024 | 349 | $2.91B |
| Q3 2024 | 353 | $3.00B |
| Q2 2024 | 344 | $2.70B |
| Q1 2024 | 330 | $2.71B |
| Q4 2023 | 347 | $4.25B |
| Q3 2023 | 361 | $4.64B |
| Q2 2023 | 392 | $6.40B |
| Q1 2023 | 373 | $6.54B |
| Q4 2022 | 365 | $5.37B |
| Q3 2022 | 330 | $4.73B |
| Q2 2022 | 310 | $4.09B |
| Q1 2022 | 311 | $4.41B |
| Q4 2021 | 309 | $4.76B |
| Q3 2021 | 310 | $4.56B |
| Q2 2021 | 279 | $4.52B |
| Q1 2021 | 301 | $4.48B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Iridium Communications Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10,995,964 | $192.0M | 0.00% | +379,568+3.6% | Added |
| Vanguard Group Inc | 9,479,969 | $165.5M | 0.00% | −258,548−2.7% | Reduced |
| ARK Investment Management LLCSuperinvestorARK Invest | 6,490,108 | $113.3M | 0.67% | +1,156,580+21.7% | Added |
| Silver Heights Capital Management Inc | 5,189,703 | $90.6M | 40.63% | +961,440+22.7% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 4,343,670 | $75.8M | 0.04% | +27,907+0.6% | Added |
| Nikko Asset Management Americas, Inc. | 4,313,080 | $75.3M | 0.73% | +2,756+0.1% | Added |
| State Street Corp | 4,035,893 | $70.5M | 0.00% | −40,478−1.0% | Reduced |
| Millennium Management LLC | 3,039,731 | $53.1M | 0.04% | +2,208,857+265.8% | Added |
| American Century Companies Inc | 2,878,902 | $50.3M | 0.03% | +238,244+9.0% | Added |
| Dimensional Fund Advisors LP | 2,327,395 | $40.6M | 0.01% | −228,878−9.0% | Reduced |
| Synergy Financial Management, LLC | 1,324,366 | $40.0M | 1.45% | +662,183+100.0% | Added |
| Man Group plc | 2,012,077 | $35.1M | 0.07% | +1,395,485+226.3% | Added |
| Goldman Sachs Group Inc | 1,914,267 | $33.4M | 0.00% | +1,789,196+1,430.5% | Added |
| Morgan Stanley | 1,838,230 | $32.1M | 0.00% | −643,507−25.9% | Reduced |
| Pacer Advisors, Inc. | 1,744,095 | $30.5M | 0.08% | +744,836+74.5% | Added |
| Geode Capital Management, LLC | 1,703,977 | $29.8M | 0.00% | −215,238−11.2% | Reduced |
| Citadel Advisors LLC | 1,649,843 | $28.8M | 0.02% | +437,009+36.0% | Added |
| Bank of America Corp | 1,581,142 | $27.6M | 0.00% | +877,760+124.8% | Added |
| UBS Group AG | 1,368,527 | $23.9M | 0.00% | +636,383+86.9% | Added |
| Bank of New York Mellon Corp | 1,071,996 | $18.7M | 0.00% | −68,962−6.0% | Reduced |
| Select Equity Group, L.P. | 1,061,453 | $18.5M | 0.08% | +60,103+6.0% | Added |
| Charles Schwab Investment Management Inc | 1,045,074 | $18.2M | 0.00% | +17,071+1.7% | Added |
| Northern Trust Corp | 1,043,569 | $18.2M | 0.00% | −593,196−36.2% | Reduced |
| Schroder Investment Management Group | 992,553 | $17.2M | 0.01% | −1,094,095−52.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 937,581 | $16.4M | 0.01% | +560,010+148.3% | Added |
| Invesco Ltd. | 887,349 | $15.5M | 0.00% | +178,937+25.3% | Added |
| Jupiter Asset Management Ltd | 850,036 | $14.8M | 0.13% | +495,034+139.4% | Added |
| Penserra Capital Management LLC | 776,576 | $13.6M | 0.16% | +360,015+86.4% | Added |
| Van Eck Associates Corp | 762,671 | $13.3M | 0.01% | +430,736+129.8% | Added |
| Two Sigma Investments, LP | 739,590 | $12.9M | 0.02% | +567,971+330.9% | Added |
| Anchor Capital Management Company, LLC | 735,366 | $12.8M | 11.05% | −155,551−17.5% | Reduced |
| Bamco Inc | 682,926 | $11.9M | 0.03% | −7,694,981−91.8% | Reduced |
| M&G Plc | 680,857 | $11.6M | 0.06% | +680,857 | New |
| Tudor Investment Corp Et Al | 660,934 | $11.5M | 0.07% | +660,934 | New |
| JPMorgan Chase & Co | 612,610 | $10.7M | 0.00% | +50,239+8.9% | Added |
| Pinnacle Associates Ltd | 607,485 | $10.6M | 0.14% | +24,622+4.2% | Added |
| Trexquant Investment LP | 569,802 | $9.95M | 0.10% | +532,130+1,412.5% | Added |
| Barclays PLC | 537,862 | $9.39M | 0.00% | −337,818−38.6% | Reduced |
| Brown Advisory Inc | 512,910 | $8.96M | 0.01% | +330.0% | Added |
| Jane Street Group, LLC | 504,534 | $8.81M | 0.01% | +152,950+43.5% | Added |
| Qube Research & Technologies Ltd | 466,600 | $8.15M | 0.01% | +456,444+4,494.3% | Added |
| Raymond James Financial Inc | 432,051 | $7.54M | 0.00% | −169,163−28.1% | Reduced |
| First Trust Advisors LP | 414,724 | $7.24M | 0.01% | +131,144+46.2% | Added |
| UBS Asset Management Americas Inc | 406,634 | $7.10M | 0.00% | −245,710−37.7% | Reduced |
| Davy Global Fund Management Ltd | 385,311 | $6.73M | 0.46% | +216,517+128.3% | Added |
| FMR LLC | 382,399 | $6.68M | 0.00% | −511,873−57.2% | Reduced |
| Voloridge Investment Management, LLC | 380,303 | $6.64M | 0.02% | +380,303 | New |
| Nuveen, LLC | 369,009 | $6.44M | 0.00% | −3,381−0.9% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 345,226 | $6.03M | 0.14% | +331,738+2,459.5% | Added |
| Legal & General Group Plc | 323,729 | $5.65M | 0.00% | −21,763−6.3% | Reduced |
| Dark Forest Capital Management LP | 318,699 | $5.56M | 0.21% | +254,425+395.8% | Added |
| Nordea Investment Management AB | 317,938 | $5.51M | 0.00% | +3,169+1.0% | Added |
| Citigroup Inc | 310,797 | $5.43M | 0.00% | +237,456+323.8% | Added |
| Gotham Asset Management, LLC | 307,518 | $5.37M | 0.02% | −643,681−67.7% | Reduced |
| Crossmark Global Holdings, Inc. | 299,572 | $5.23M | 0.08% | +15,198+5.3% | Added |
| Balyasny Asset Management LLC | 293,366 | $5.12M | 0.01% | +293,366 | New |
| Engineers Gate Manager LP | 292,318 | $5.10M | 0.06% | +257,016+728.0% | Added |
| Robertson Opportunity Capital, LLC | 287,346 | $5.02M | 1.72% | +4,000+1.4% | Added |
| Retirement Systems of Alabama | 279,697 | $4.88M | 0.02% | −3,899−1.4% | Reduced |
| Rhumbline Advisers | 267,069 | $4.66M | 0.00% | −18,692−6.5% | Reduced |
| Victory Capital Management Inc | 249,593 | $4.36M | 0.00% | +135,445+118.7% | Added |
| Susquehanna International Group, LLP | 239,364 | $4.18M | 0.01% | +176,120+278.5% | Added |
| Principal Financial Group Inc | 235,526 | $4.11M | 0.00% | −9,384−3.8% | Reduced |
| Blair William & Co | 227,731 | $3.98M | 0.01% | +28,120+14.1% | Added |
| Two Sigma Advisers, LP | 225,700 | $3.94M | 0.01% | +185,900+467.1% | Added |
| Carolina Wealth Advisors, LLC | 205,534 | $3.59M | 1.55% | +203,019+8,072.3% | Added |
| Alliancebernstein L.P. | 198,117 | $3.46M | 0.00% | +53,624+37.1% | Added |
| Botty Investors LLC | 195,707 | $3.42M | 0.94% | +102,098+109.1% | Added |
| Swiss National Bank | 188,700 | $3.29M | 0.00% | +1,800+1.0% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 180,753 | $3.16M | 0.02% | +15,303+9.2% | Added |
| Voya Investment Management LLC | 175,701 | $3.07M | 0.00% | −549,403−75.8% | Reduced |
| State of Wisconsin Investment Board | 172,365 | $3.01M | 0.01% | +254+0.1% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 172,320 | $3.01M | 0.00% | +20,901+13.8% | Added |
| Worldquant Millennium Advisors LLC | 170,747 | $2.98M | 0.01% | +170,747 | New |
| BNP Paribas Arbitrage, SA | 156,986 | $2.74M | 0.00% | +16,515+11.8% | Added |
| Squarepoint Ops LLC | 152,705 | $2.67M | 0.01% | +138,231+955.0% | Added |
| Amundi | 126,760 | $2.54M | 0.00% | +126,760 | New |
| Twinbeech Capital LP | 140,311 | $2.45M | 0.10% | +140,311 | New |
| Capital Fund Management S.A. | 139,231 | $2.43M | 0.02% | +41,390+42.3% | Added |
| Holocene Advisors, LP | 136,778 | $2.39M | 0.01% | +76,499+126.9% | Added |
| Agf Management Ltd | 132,467 | $2.31M | 0.01% | +16,285+14.0% | Added |
| AQR Capital Management LLC | 128,055 | $2.21M | 0.00% | −78,468−38.0% | Reduced |
| Russell Investments Group, Ltd. | 121,429 | $2.12M | 0.00% | +84,683+230.5% | Added |
| ExodusPoint Capital Management, LP | 118,093 | $2.06M | 0.03% | +110,117+1,380.6% | Added |
| Bridgewater Associates, LP | 116,726 | $2.04M | 0.01% | +116,726 | New |
| Weiss Asset Management LP | 116,138 | $2.03M | 0.03% | +78,086+205.2% | Added |
| New York State Teachers Retirement System | 113,799 | $1.99M | 0.00% | −555−0.5% | Reduced |
| Stifel Financial Corp | 112,873 | $1.97M | 0.00% | +73,058+183.5% | Added |
| Verition Fund Management LLC | 110,364 | $1.93M | 0.01% | +18,592+20.3% | Added |
| XTX Topco Ltd | 107,834 | $1.88M | 0.10% | +107,834 | New |
| Royal Bank of Canada | 106,841 | $1.86M | 0.00% | −18,345−14.7% | Reduced |
| Price T Rowe Associates Inc | 105,226 | $1.84M | 0.00% | −1,863,323−94.7% | Reduced |
| Advisor Group Holdings, Inc. | 75,204 | $1.81M | 0.00% | +59,074+366.2% | Added |
| Brevan Howard Capital Management LP | 100,693 | $1.76M | 0.03% | +69,802+226.0% | Added |
| Paralel Advisors LLC | 97,919 | $1.71M | 0.07% | +128+0.1% | Added |
| Ameriprise Financial Inc | 93,425 | $1.63M | 0.00% | −35,064−27.3% | Reduced |
| California State Teachers Retirement System | 91,971 | $1.61M | 0.00% | −5,863−6.0% | Reduced |
| PDT Partners, LLC | 90,226 | $1.58M | 0.10% | +90,226 | New |
| Sherbrooke Park Advisers LLC | 89,340 | $1.56M | 0.73% | +73,317+457.6% | Added |
| State of New Jersey Common Pension Fund D | 88,114 | $1.54M | 0.01% | +14,340+19.4% | Added |