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, Q4 2025
Institutional positions in Iridium Communications Inc. as of Dec 31, 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
- 325
- +4 vs. Q3 2025
- Shares held
- 93.8M
- −7.68M (−7.6%) vs. Q3 2025
- Total value
- $1.63B
- −$158.1M (−8.8%) vs. Q3 2025
- New holders
- 64
- 109 more added
- Sold out
- 60
- 114 more reduced
3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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 | $1.80B |
| Q2 2025 | 332 | $3.07B |
| Q1 2025 | 351 | $2.86B |
| Q4 2024 | 349 | $2.91B |
| Q3 2024 | 353 | $3.02B |
| Q2 2024 | 344 | $2.72B |
| Q1 2024 | 330 | $2.82B |
| Q4 2023 | 347 | $4.31B |
| Q3 2023 | 361 | $4.64B |
| Q2 2023 | 392 | $6.40B |
| Q1 2023 | 373 | $6.60B |
| Q4 2022 | 365 | $5.37B |
| Q3 2022 | 331 | $4.73B |
| Q2 2022 | 310 | $4.09B |
| Q1 2022 | 311 | $4.41B |
| Q4 2021 | 309 | $4.77B |
| Q3 2021 | 310 | $4.56B |
| Q2 2021 | 279 | $4.52B |
| Q1 2021 | 301 | $4.48B |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Iridium Communications Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13,891,150 | $241.4M | 0.00% | +2,895,186+26.3% | Added |
| Vanguard Group Inc | 10,157,227 | $176.5M | 0.00% | +677,258+7.1% | Added |
| Silver Heights Capital Management Inc | 5,251,133 | $91.3M | 36.21% | +61,430+1.2% | Added |
| State Street Corp | 4,761,749 | $82.8M | 0.00% | +725,856+18.0% | Added |
| American Century Companies Inc | 3,078,679 | $53.5M | 0.03% | +199,777+6.9% | Added |
| ARK Investment Management LLCSuperinvestorARK Invest | 2,850,606 | $49.5M | 0.33% | −3,639,502−56.1% | Reduced |
| Goldman Sachs Group Inc | 2,323,170 | $40.4M | 0.01% | +408,903+21.4% | Added |
| Gotham Asset Management, LLC | 2,309,750 | $40.1M | 0.15% | +2,002,232+651.1% | Added |
| Dimensional Fund Advisors LP | 2,093,124 | $36.4M | 0.01% | −234,271−10.1% | Reduced |
| Geode Capital Management, LLC | 1,907,797 | $33.2M | 0.00% | +203,820+12.0% | Added |
| Man Group plc | 1,851,528 | $32.2M | 0.06% | −160,549−8.0% | Reduced |
| Morgan Stanley | 1,795,202 | $31.2M | 0.00% | −43,028−2.3% | Reduced |
| Pacer Advisors, Inc. | 1,358,706 | $23.6M | 0.06% | −385,389−22.1% | Reduced |
| UBS Group AG | 1,273,219 | $22.1M | 0.00% | −95,308−7.0% | Reduced |
| Charles Schwab Investment Management Inc | 1,206,189 | $21.0M | 0.00% | +161,115+15.4% | Added |
| Van Eck Associates Corp | 1,204,302 | $20.9M | 0.02% | +441,631+57.9% | Added |
| Bank of New York Mellon Corp | 1,173,761 | $20.4M | 0.00% | +101,765+9.5% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 1,170,252 | $20.3M | 0.01% | −3,173,418−73.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 1,155,467 | $20.1M | 0.01% | +217,886+23.2% | Added |
| Citadel Advisors LLC | 1,140,215 | $19.8M | 0.01% | −509,628−30.9% | Reduced |
| Nikko Asset Management Americas, Inc. | 1,117,952 | $19.4M | 0.22% | −3,195,128−74.1% | Reduced |
| Millennium Management LLC | 1,037,281 | $18.0M | 0.01% | −2,002,450−65.9% | Reduced |
| Invesco Ltd. | 994,205 | $17.3M | 0.00% | +106,856+12.0% | Added |
| Barclays PLC | 980,847 | $17.0M | 0.01% | +442,985+82.4% | Added |
| Northern Trust Corp | 974,401 | $16.9M | 0.00% | −69,168−6.6% | Reduced |
| Schroder Investment Management Group | 954,707 | $16.7M | 0.01% | −37,846−3.8% | Reduced |
| Penserra Capital Management LLC | 853,199 | $14.8M | 0.18% | +76,623+9.9% | Added |
| Select Equity Group, L.P. | 835,881 | $14.5M | 0.07% | −225,572−21.3% | Reduced |
| Voloridge Investment Management, LLC | 812,037 | $14.1M | 0.05% | +431,734+113.5% | Added |
| Jupiter Asset Management Ltd | 808,392 | $14.0M | 0.11% | −41,644−4.9% | Reduced |
| Two Sigma Investments, LP | 700,544 | $12.2M | 0.02% | −39,046−5.3% | Reduced |
| Tudor Investment Corp Et Al | 666,046 | $11.6M | 0.06% | +5,112+0.8% | Added |
| Pinnacle Associates Ltd | 606,384 | $10.5M | 0.14% | −1,101−0.2% | Reduced |
| Nuveen, LLC | 599,400 | $10.4M | 0.00% | +230,391+62.4% | Added |
| Defiance ETFs, LLC | 565,154 | $9.90M | 0.32% | +565,154 | New |
| JPMorgan Chase & Co | 546,024 | $9.49M | 0.00% | −66,586−10.9% | Reduced |
| Trexquant Investment LP | 531,620 | $9.24M | 0.08% | −38,182−6.7% | Reduced |
| Brown Advisory Inc | 512,354 | $8.90M | 0.01% | −556−0.1% | Reduced |
| Qube Research & Technologies Ltd | 506,601 | $8.80M | 0.01% | +40,001+8.6% | Added |
| Principal Financial Group Inc | 497,588 | $8.65M | 0.00% | +262,062+111.3% | Added |
| AQR Capital Management LLC | 479,114 | $8.30M | 0.00% | +351,059+274.1% | Added |
| FMR LLC | 459,861 | $7.99M | 0.00% | +77,462+20.3% | Added |
| First Trust Advisors LP | 428,349 | $7.44M | 0.01% | +13,625+3.3% | Added |
| Maxi Investments CY Ltd | 424,000 | $7.37M | 1.34% | +424,000 | New |
| Bridgewater Associates, LP | 419,838 | $7.30M | 0.03% | +303,112+259.7% | Added |
| Legal & General Group Plc | 410,893 | $7.14M | 0.00% | +87,164+26.9% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 396,642 | $7.04M | 0.00% | +224,322+130.2% | Added |
| Capital Fund Management S.A. | 378,575 | $6.58M | 0.06% | +239,344+171.9% | Added |
| Public Sector Pension Investment Board | 362,500 | $6.30M | 0.02% | +362,500 | New |
| UBS Asset Management Americas Inc | 360,759 | $6.27M | 0.00% | −45,875−11.3% | Reduced |
| Two Sigma Advisers, LP | 353,826 | $6.15M | 0.01% | +128,126+56.8% | Added |
| Raymond James Financial Inc | 327,257 | $5.69M | 0.00% | −104,794−24.3% | Reduced |
| Victory Capital Management Inc | 322,542 | $5.61M | 0.00% | +72,949+29.2% | Added |
| Russell Investments Group, Ltd. | 308,250 | $5.36M | 0.01% | +186,821+153.9% | Added |
| Stifel Financial Corp | 302,780 | $5.26M | 0.00% | +189,907+168.2% | Added |
| Crossmark Global Holdings, Inc. | 291,486 | $5.07M | 0.07% | −8,086−2.7% | Reduced |
| Janus Henderson Group PLC | 279,359 | $4.86M | 0.00% | +234,620+524.4% | Added |
| Nordea Investment Management AB | 267,615 | $4.63M | 0.00% | −50,323−15.8% | Reduced |
| Point72 Asset Management, L.P. | 248,461 | $4.32M | 0.01% | +248,461 | New |
| Dark Forest Capital Management LP | 248,011 | $4.31M | 0.20% | −70,688−22.2% | Reduced |
| Blair William & Co | 234,958 | $4.08M | 0.01% | +7,227+3.2% | Added |
| Rhumbline Advisers | 224,509 | $3.90M | 0.00% | −42,560−15.9% | Reduced |
| Bank of America Corp | 216,371 | $3.76M | 0.00% | −1,364,771−86.3% | Reduced |
| Bamco Inc | 200,000 | $3.48M | 0.01% | −482,926−70.7% | Reduced |
| Ameriprise Financial Inc | 197,454 | $3.43M | 0.00% | +104,029+111.4% | Added |
| Botty Investors LLC | 197,066 | $3.43M | 0.81% | +1,359+0.7% | Added |
| Carolina Wealth Advisors, LLC | 196,131 | $3.41M | 1.52% | −9,403−4.6% | Reduced |
| Balyasny Asset Management LLC | 190,558 | $3.31M | 0.01% | −102,808−35.0% | Reduced |
| Swiss National Bank | 188,700 | $3.28M | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 184,149 | $3.20M | 0.00% | +27,163+17.3% | Added |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 177,720 | $3.09M | 0.02% | −3,033−1.7% | Reduced |
| Susquehanna International Group, LLP | 171,762 | $2.99M | 0.00% | −67,602−28.2% | Reduced |
| Acadian Asset Management LLC | 170,361 | $2.96M | 0.00% | +170,361 | New |
| Alliancebernstein L.P. | 169,079 | $2.94M | 0.00% | −29,038−14.7% | Reduced |
| Algert Global LLC | 168,598 | $2.93M | 0.05% | +168,598 | New |
| Worldquant Millennium Advisors LLC | 153,949 | $2.68M | 0.01% | −16,798−9.8% | Reduced |
| Squarepoint Ops LLC | 153,756 | $2.67M | 0.01% | +1,051+0.7% | Added |
| Engineers Gate Manager LP | 151,605 | $2.63M | 0.03% | −140,713−48.1% | Reduced |
| Retirement Systems of Alabama | 151,400 | $2.63M | 0.01% | −128,297−45.9% | Reduced |
| Marshall Wace, LLP | 148,836 | $2.59M | 0.00% | +87,358+142.1% | Added |
| Holocene Advisors, LP | 141,135 | $2.45M | 0.01% | +4,357+3.2% | Added |
| Redwood Investment Management, LLC | 138,991 | $2.42M | 0.27% | +138,991 | New |
| Amundi | 138,937 | $2.41M | 0.00% | +12,177+9.6% | Added |
| PDT Partners, LLC | 138,207 | $2.40M | 0.16% | +47,981+53.2% | Added |
| New York State Teachers Retirement System | 114,210 | $1.99M | 0.00% | +411+0.4% | Added |
| Voya Investment Management LLC | 113,473 | $1.97M | 0.00% | −62,228−35.4% | Reduced |
| Daiwa Securities Group Inc. | 112,700 | $1.96M | 0.01% | +45,400+67.5% | Added |
| Icon Advisers Inc | 109,467 | $1.90M | 0.41% | +57,900+112.3% | Added |
| ExodusPoint Capital Management, LP | 109,244 | $1.90M | 0.02% | −8,849−7.5% | Reduced |
| CWM Advisors, LLC | 109,165 | $1.90M | 0.17% | +80,058+275.0% | Added |
| Great West Life Assurance Co | 105,755 | $1.84M | 0.00% | +23,048+27.9% | Added |
| Jane Street Group, LLC | 103,282 | $1.80M | 0.00% | −401,252−79.5% | Reduced |
| Paralel Advisors LLC | 97,919 | $1.70M | 0.07% | 00.0% | Unchanged |
| Prudential Financial Inc | 96,704 | $1.68M | 0.00% | +86,256+825.6% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 96,127 | $1.68M | 0.00% | +43,297+82.0% | Added |
| Weiss Asset Management LP | 96,497 | $1.68M | 0.02% | −19,641−16.9% | Reduced |
| Intech Investment Management LLC | 92,900 | $1.61M | 0.01% | +17,432+23.1% | Added |
| California State Teachers Retirement System | 91,701 | $1.59M | 0.00% | −270−0.3% | Reduced |
| Price T Rowe Associates Inc | 89,910 | $1.56M | 0.00% | −15,316−14.6% | Reduced |
| Citigroup Inc | 89,384 | $1.55M | 0.00% | −221,413−71.2% | Reduced |