IRIDIUM COMMUNICATIONS INC (IRDM)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
448
Reporting holders
$5.0B
Reported value
83.6%
Of shares outstanding
2.6%
Held as options
+98
Holder change
Institutions report 88,585,950 shares against 105,960,383 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $737.6M | 13,447,338 | 0.01% | 8q | -3.5%-$27.0M |
| AQR CAPITAL MANAGEMENT LLC | $374.3M | 6,847,072 | 0.13% | 31q | +134.7%+$214.8M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $298.4M | 5,440,399 | 0.01% | 2q | -10.7%-$35.7M |
| AMERICAN CENTURY COMPANIES INC | $266.4M | 4,856,440 | 0.12% | 26q | +40.0%+$76.0M |
| STATE STREET CORP | $259.6M | 4,733,714 | 0.01% | 31q | -6.3%-$17.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | $232.1M | 4,232,161 | 0.00% | 2q | +2.9%+$6.6M |
| Silver Heights Capital Management Inc | $179.6M | 3,274,947 | 55.43% | 31q | -36.4%-$102.6M |
| Gotham Asset Management, LLC | $137.9M | 2,514,317 | 0.32% | 27q | -25.0%-$46.1M |
| DIMENSIONAL FUND ADVISORS LP | $129.3M | 2,357,845 | 0.02% | 31q | +9.2%+$10.9M |
| VAN ECK ASSOCIATES CORP | $124.6M | 2,270,799 | 0.08% | 27q | +50.9%+$42.0M |
| GEODE CAPITAL MANAGEMENT, LLC | $112.2M | 2,044,823 | 0.01% | 31q | +1.9%+$2.1M |
| MORGAN STANLEY | $83.2M | 1,517,404 | 0.00% | 35q | -4.2%-$3.6M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $72.3M | 1,317,782 | 0.01% | 31q | -3.5%-$2.6M |
| Sixth Street Partners Management Company, L.P. | $72.3M | 1,317,782 | 0.01% | new | NEW |
| ARK Investment Management LLC | $66.6M | 1,215,113 | 0.43% | 28q | -29.6%-$28.1M |
| Bank of New York Mellon Corp | $62.8M | 1,144,055 | 0.01% | 31q | -0.6%-$350.8K |
| UBS Group AG | $55.2M | 1,005,602 | 0.01% | 31q | -21.7%-$15.3M |
| Balyasny Asset Management L.P. | $53.1M | 967,572 | 0.07% | 4q | +683.1%+$46.3M |
| Invesco Ltd. | $49.8M | 908,134 | 0.00% | 31q | -8.1%-$4.4M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $48.0M | 361,703 | 0.00% | 31q | +24.0%+$9.3M |
| NORTHERN TRUST CORP | $46.8M | 854,112 | 0.01% | 31q | -1.1%-$514.6K |
| Public Sector Pension Investment Board | $44.7M | 814,680 | 0.06% | 3q | +117.0%+$24.1M |
| JPMORGAN CHASE & CO | $43.3M | 789,191 | 0.00% | 31q | +11.4%+$4.4M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $41.4M | 754,424 | 0.02% | 9q | -31.5%-$19.0M |
| GOLDMAN SACHS GROUP INC | $39.9M | 726,762 | 0.00% | 31q | -21.7%-$11.1M |
| VANGUARD FIDUCIARY TRUST CO | $36.1M | 657,958 | 0.01% | 2q | +3.3%+$1.2M |
| SCHRODER INVESTMENT MANAGEMENT GROUP | $35.0M | 641,884 | 0.02% | 17q | -50.0%-$35.0M |
| RENAISSANCE TECHNOLOGIES LLC | $33.4M | 609,799 | 0.05% | 2q | +376.0%+$26.4M |
| Sumitomo Mitsui Trust Group, Inc. | $32.2M | 587,179 | 0.02% | 30q | -25.8%-$11.2M |
| Amova Asset Management Americas, Inc. | $30.2M | 550,679 | 0.39% | 31q | -25.3%-$10.2M |
| IMC-Chicago, LLC | $29.8M | 354,368 | 0.01% | new | NEW |
| CITADEL ADVISORS LLC | $29.7M | options only | 0.00% | 31q | OPTIONS |
| BROWN ADVISORY INC | $28.1M | 512,859 | 0.04% | 31q | HELD |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $28.0M | 509,978 | 0.01% | new | NEW |
| PRINCIPAL FINANCIAL GROUP INC | $27.9M | 509,489 | 0.01% | 31q | HELD |
| Nuveen, LLC | $27.6M | 502,677 | 0.01% | 6q | +18.2%+$4.3M |
| FMR LLC | $26.5M | 483,117 | 0.00% | 31q | -10.5%-$3.1M |
| PANAGORA ASSET MANAGEMENT INC | $26.4M | 482,003 | 0.08% | 2q | -9.0%-$2.6M |
| Sculptor Capital LP | $25.7M | 469,000 | 0.21% | new | NEW |
| FIRST TRUST ADVISORS LP | $25.5M | 465,768 | 0.02% | 26q | +32.2%+$6.2M |
| Man Group plc | $22.8M | 416,442 | 0.04% | 30q | -78.2%-$81.8M |
| Russell Investments Group, Ltd. | $22.0M | 401,808 | 0.02% | 28q | +13.8%+$2.7M |
| Jefferies Financial Group Inc. | $21.7M | 396,110 | 0.14% | new | NEW |
| PINNACLE ASSOCIATES LTD | $21.6M | 394,679 | 0.24% | 31q | -29.9%-$9.2M |
| Legal & General Group Plc | $20.8M | 380,075 | 0.00% | 31q | HELD |
| TWO SIGMA INVESTMENTS, LP | $19.9M | 363,685 | 0.01% | 6q | -9.6%-$2.1M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $18.7M | 340,871 | 0.00% | 31q | -5.2%-$1.0M |
| Mitsubishi UFJ Asset Management Co., Ltd. | $18.0M | 327,899 | 0.01% | 29q | -39.1%-$11.5M |
| Jupiter Topco LLC | $17.8M | 325,387 | 0.01% | new | FIRST |
| JANE STREET GROUP, LLC | $17.5M | 6,892 | 0.00% | 13q | HELD |
| IEQ CAPITAL, LLC | $17.1M | 311,175 | 0.08% | 2q | +651.3%+$14.8M |
| Tema ETFs LLC | $17.0M | 309,229 | 0.55% | new | NEW |
| BRAUN STACEY ASSOCIATES INC | $16.2M | 295,922 | 0.46% | new | NEW |
| ALPINE ASSOCIATES MANAGEMENT INC. | $15.9M | 289,700 | 0.99% | new | NEW |
| Defiance ETFs, LLC | $15.4M | 277,161 | 0.21% | 3q | +8.6%+$1.2M |
| Mariner, LLC | $14.9M | 272,397 | 0.02% | 2q | +131.4%+$8.5M |
| NORDEA INVESTMENT MANAGEMENT AB | $13.9M | 260,001 | 0.01% | 9q | +1.6%+$225.4K |
| Robertson Opportunity Capital, LLC | $13.7M | 250,346 | 5.33% | 2q | -12.9%-$2.0M |
| BANK OF AMERICA CORP /DE/ | $13.4M | 245,134 | 0.00% | 31q | -30.2%-$5.8M |
| MACKENZIE FINANCIAL CORP | $13.0M | 236,542 | 0.01% | 5q | +365.8%+$10.2M |
| CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT | $12.9M | 236,000 | 0.58% | new | NEW |
| ArchPoint Investors | $12.7M | 230,796 | 2.67% | 5q | +17.1%+$1.9M |
| RAYMOND JAMES FINANCIAL INC | $12.2M | 222,994 | 0.00% | 7q | -39.4%-$8.0M |
| MERCER GLOBAL ADVISORS INC /ADV | $11.4M | 208,234 | 0.01% | 3q | +322.4%+$8.7M |
| PEAK6 LLC | $11.0M | options only | 0.02% | 2q | OPTIONS |
| RHUMBLINE ADVISERS | $10.9M | 198,087 | 0.01% | 31q | -15.4%-$2.0M |
| Swiss National Bank | $10.2M | 185,300 | 0.01% | 31q | -0.6%-$60.3K |
| AMERIPRISE FINANCIAL INC | $10.0M | 181,531 | 0.00% | 31q | -61.1%-$15.6M |
| Weiss Asset Management LP | $9.5M | 173,416 | 0.10% | new | NEW |
| BLAIR WILLIAM & CO/IL | $9.5M | 172,503 | 0.02% | 31q | -21.7%-$2.6M |
| Cerity Partners LLC | $9.4M | 171,875 | 0.01% | 2q | +211.8%+$6.4M |
| TIG Advisors, LLC | $9.2M | options only | 0.41% | new | OPTIONS |
| CITIGROUP INC | $9.0M | 163,745 | 0.00% | 31q | +43.6%+$2.7M |
| MILLENNIUM MANAGEMENT LLC | $8.9M | 153,205 | 0.00% | 19q | -69.0%-$19.8M |
| Magnetar Financial LLC | $8.4M | 153,186 | 0.08% | new | NEW |
| Retirement Systems of Alabama | $8.3M | 151,400 | 0.03% | 22q | HELD |
| Qube Research & Technologies Ltd | $8.2M | 149,142 | 0.01% | new | NEW |
| GROUP ONE TRADING LLC | $7.9M | 17,221 | 0.01% | 31q | HELD |
| Amundi | $7.8M | 141,756 | 0.00% | 4q | +407.9%+$6.2M |
| PDT Partners, LLC | $7.6M | 138,207 | 0.40% | 4q | HELD |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS | $7.4M | 135,240 | 0.04% | 31q | -16.0%-$1.4M |
| AQR Arbitrage LLC | $7.2M | 132,611 | 0.10% | new | NEW |
| Creative Planning | $7.1M | 129,974 | 0.00% | 20q | +62.9%+$2.8M |
| VICTORY CAPITAL MANAGEMENT INC | $7.0M | 128,482 | 0.00% | 28q | -41.4%-$5.0M |
| LPL Financial LLC | $7.0M | 127,605 | 0.00% | 31q | +155.6%+$4.3M |
| Squarepoint Ops LLC | $6.7M | 58,467 | 0.01% | new | NEW |
| Inspire Investing, LLC | $6.6M | 119,707 | 0.27% | 22q | +390.2%+$5.2M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $6.3M | 115,034 | 0.01% | 9q | +291.0%+$4.7M |
| Advisors Asset Management, Inc. | $5.9M | 106,829 | 0.09% | 29q | -2.7%-$164.3K |
| XTX Topco Ltd | $5.5M | 100,123 | 0.07% | 4q | +50.1%+$1.8M |
| STATE OF WISCONSIN INVESTMENT BOARD | $5.4M | 97,778 | 0.01% | 18q | +26.7%+$1.1M |
| EXCHANGE TRADED CONCEPTS, LLC | $5.2M | 95,646 | 0.01% | 2q | +588.5%+$4.5M |
| PRUDENTIAL FINANCIAL INC | $5.2M | 95,599 | 0.01% | 8q | -0.7%-$35.9K |
| Quantinno Capital Management LP | $4.8M | 88,308 | 0.01% | 17q | +42.8%+$1.5M |
| Walleye Trading LLC | $4.8M | 30,326 | 0.01% | 7q | -19.5%-$1.2M |
| BARCLAYS PLC | $4.7M | 86,589 | 0.00% | 31q | -91.3%-$49.8M |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $4.7M | 85,686 | 0.01% | 31q | HELD |
| Daiwa Securities Group Inc. | $4.7M | 85,400 | 0.01% | 13q | -29.1%-$1.9M |
| STIFEL FINANCIAL CORP | $4.3M | 79,042 | 0.00% | 31q | -80.1%-$17.5M |
| VANGUARD ASSET MANAGEMENT, Ltd | $4.3M | 78,203 | 0.00% | 2q | +12.6%+$479.6K |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-13 | 13G | AQR Capital Management, LLCwith 1 co-filers | 6.6% |
| 2026-08-12 | 13G/A | Silver Heights Capital Management Inc | 3.1% |
| 2026-08-04 | 13D/A | Baralonco Limitedwith 2 co-filers | 9.4% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 448 | $5.0B | 88,585,950 | 148 | 131 | 110 | 2.6% |
| Q1 2026 | 350 | $2.4B | 86,050,367 | 92 | 112 | 86 | 1.7% |
| Q4 2025 | 294 | $1.6B | 90,277,372 | 47 | 94 | 103 | 1.4% |
| Q3 2025 | 295 | $1.8B | 99,575,779 | 57 | 99 | 96 | 1.2% |
| Q2 2025 | 301 | $2.9B | 94,861,102 | 47 | 94 | 124 | 1.7% |
| Q1 2025 | 318 | $2.7B | 98,583,808 | 42 | 117 | 109 | 0.7% |
| Q4 2024 | 315 | $2.7B | 94,101,592 | 31 | 114 | 111 | 0.6% |
| Q3 2024 | 312 | $2.8B | 92,839,300 | 41 | 95 | 121 | 0.7% |
| Q2 2024 | 304 | $2.6B | 94,956,508 | 51 | 97 | 111 | 1.9% |
| Q1 2024 | 291 | $2.7B | 100,783,539 | 40 | 116 | 90 | 1.6% |
| Q4 2023 | 297 | $4.1B | 98,781,779 | 21 | 93 | 108 | 0.7% |
| Q3 2023 | 309 | $4.4B | 96,101,225 | 29 | 84 | 136 | 0.9% |
| Q2 2023 | 335 | $6.2B | 98,381,711 | 46 | 109 | 110 | 0.9% |
| Q1 2023 | 310 | $6.3B | 100,369,368 | 44 | 95 | 108 | 0.7% |
| Q4 2022 | 284 | $4.8B | 92,492,555 | 46 | 76 | 97 | 0.7% |
| Q3 2022 | 328 | $4.8B | 106,681,780 | 40 | 106 | 107 | 0.6% |
| Q2 2022 | 309 | $4.1B | 109,055,358 | 38 | 82 | 114 | 0.5% |
| Q1 2022 | 309 | $4.4B | 109,630,399 | 36 | 81 | 110 | 0.3% |
| Q4 2021 | 312 | $4.8B | 115,681,830 | 23 | 101 | 91 | 0.6% |
| Q3 2021 | 310 | $4.6B | 114,319,706 | 50 | 115 | 59 | 0.8% |
| Q2 2021 | 281 | $4.6B | 113,084,095 | 29 | 74 | 110 | 0.7% |
| Q1 2021 | 300 | $4.5B | 108,798,674 | 64 | 71 | 112 | 1.0% |
| Q4 2020 | 266 | $4.5B | 113,187,598 | 36 | 70 | 81 | 0.8% |
| Q3 2020 | 252 | $2.9B | 111,018,592 | 25 | 95 | 69 | 0.7% |
| Q2 2020 | 247 | $2.9B | 111,985,379 | 31 | 88 | 80 | 0.9% |
| Q1 2020 | 253 | $2.5B | 111,550,607 | 29 | 82 | 81 | 1.2% |
| Q4 2019 | 267 | $2.7B | 108,749,742 | 27 | 73 | 76 | 0.6% |
| Q3 2019 | 259 | $2.2B | 103,412,189 | 27 | 87 | 66 | 1.9% |
| Q2 2019 | 250 | $2.5B | 102,135,494 | 33 | 75 | 74 | 3.3% |
| Q1 2019 | 257 | $2.6B | 96,868,446 | 41 | 83 | 61 | 3.2% |
| Q4 2018 | 239 | $1.9B | 97,781,402 | 4 | 5 | 4 | 3.2% |