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IRDM

Iridium Communications Inc.
$51.09 -1.50 (-2.85%) At close · Jul 7
Market Cap
$5.40B
Shares
105,727,744

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 381
Total Value: $2,366,637,312
Total Shares: 85,142,314
Showing 1–100 of 393 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Superinvestors Holding IRDM

All superinvestors →
Joel Greenblatt $93,039,155 Ray Dalio $2,957,084

Holder Concentration

Across 381 13F filers
Top Holder
16.4%
Jun 2023 → Mar 2026 · range 10.3% – 16.4%
of institutional value
Top 5
37.2%
Jun 2023 → Mar 2026 · range 35.7% – 48.8%
of institutional value
Top 10
51.7%
Jun 2023 → Mar 2026 · range 51.4% – 59.1%
of institutional value
HHI
464
Jun 2023 → Mar 2026 · range 382 – 593
Broadly held
Showing 100 of 393
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $386,684,994 16.34% 13,939,618
Small Silver Heights Capital Management Inc $142,735,587 6.03% 5,145,479
Mega STATE STREET CORP $140,091,604 5.92% 5,050,166
Mega VANGUARD CAPITAL MANAGEMENT LLC $114,048,155 4.82% 4,111,325
Mega AMERICAN CENTURY COMPANIES INC $96,256,523 4.07% 3,469,954
Large Gotham Asset Management, LLC $93,039,155 3.93% 3,353,971
Mega AQR CAPITAL MANAGEMENT LLC $80,940,517 3.42% 2,917,827
Mega DIMENSIONAL FUND ADVISORS LP $59,892,350 2.53% 2,159,061
Mega GEODE CAPITAL MANAGEMENT, LLC $55,674,485 2.35% 2,007,011
Large Man Group plc $52,901,400 2.24% 1,907,044
Large ARK Investment Management LLC $47,901,487 2.02% 1,726,802
Mega MORGAN STANLEY $43,921,763 1.86% 1,583,337
Mega VAN ECK ASSOCIATES CORP $41,738,380 1.76% 1,504,628
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $37,892,978 1.60% 1,366,005
Mega UBS Group AG $35,633,720 1.51% 1,284,561
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $35,580,405 1.50% 1,282,639
Mega Bank of New York Mellon Corp Bank $31,913,478 1.35% 1,150,450
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $30,548,147 1.29% 1,101,231
Mega BARCLAYS PLC $27,575,473 1.17% 994,069
Mega Invesco Ltd. $27,405,064 1.16% 987,926
Large Select Equity Group, L.P. $26,145,477 1.10% 942,519
Mega GOLDMAN SACHS GROUP INC $25,753,482 1.09% 928,388
Large JUPITER ASSET MANAGEMENT LTD $24,779,642 1.05% 893,282
Large Pacer Advisors, Inc. $24,699,196 1.04% 890,382
Mega NORTHERN TRUST CORP Bank $23,953,321 1.01% 863,494
Mega Sumitomo Mitsui Trust Group, Inc. $21,963,783 0.93% 791,773
Mid Penserra Capital Management LLC $20,963,894 0.89% 755,728
Mid Amova Asset Management Americas, Inc. $20,443,631 0.86% 736,973
Mega JPMORGAN CHASE & CO $19,648,158 0.83% 708,297
Mega VANGUARD FIDUCIARY TRUST CO Bank $17,666,357 0.75% 636,855
Mid PINNACLE ASSOCIATES LTD $15,610,435 0.66% 562,741
Mega FMR LLC $14,981,069 0.63% 540,053
Mega Mitsubishi UFJ Asset Management Co., Ltd. $14,935,964 0.63% 538,427
Large PANAGORA ASSET MANAGEMENT INC $14,688,884 0.62% 529,520
Large BROWN ADVISORY INC $14,218,857 0.60% 512,576
Mega PRINCIPAL FINANCIAL GROUP INC $14,099,964 0.60% 508,290
Mega MILLENNIUM MANAGEMENT LLC $13,721,923 0.58% 494,662
Mega Nuveen, LLC $11,793,521 0.50% 425,145
Mega TWO SIGMA INVESTMENTS, LP $11,163,352 0.47% 402,428
Large STIFEL FINANCIAL CORP $11,037,385 0.47% 397,887
Mega Legal & General Group Plc $10,504,914 0.44% 378,692
Large Public Sector Pension Investment Board Pension $10,416,675 0.44% 375,511
Mega RAYMOND JAMES FINANCIAL INC $10,215,975 0.43% 368,276
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $9,973,358 0.42% 359,530
Large Russell Investments Group, Ltd. $9,790,747 0.41% 352,947
Mega FIRST TRUST ADVISORS LP $9,771,387 0.41% 352,249
Mega BANK OF AMERICA CORP /DE/ Bank $9,743,230 0.41% 351,234
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $9,423,278 0.40% 339,700
Mid CX Institutional $9,384,725 0.40% 171,098
Mega JANUS HENDERSON GROUP PLC $8,507,413 0.36% 306,684
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $8,091,591 0.34% 291,694
Small Robertson Opportunity Capital, LLC $7,970,978 0.34% 287,346
Mega NORDEA INVESTMENT MANAGEMENT AB $7,095,558 0.30% 255,788
Mid Defiance ETFs, LLC Mutual Fund $7,078,554 0.30% 255,175
Mega RHUMBLINE ADVISERS $6,498,039 0.27% 234,248
Mega AMERIPRISE FINANCIAL INC $6,471,768 0.27% 233,301
Large BLAIR WILLIAM & CO/IL $6,109,762 0.26% 220,251
Mega VICTORY CAPITAL MANAGEMENT INC $6,080,774 0.26% 219,206
Large BESSEMER GROUP INC $6,033,033 0.25% 217,485
Large PEAK6 LLC $5,869,784 0.25% 211,600
Small ArchPoint Investors $5,466,610 0.23% 197,066
Large LOS ANGELES CAPITAL MANAGEMENT LLC $5,329,630 0.23% 192,128
Mega Swiss National Bank Bank $5,170,736 0.22% 186,400
Mega ALLIANCEBERNSTEIN L.P. $4,685,175 0.20% 168,896
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $4,467,416 0.19% 161,046
Micro MORGENS WATERFALL VINTIADIS & CO INC $4,271,960 0.18% 154,000
Large Retirement Systems of Alabama Pension $4,199,836 0.18% 151,400
Large Holocene Advisors, LP $4,143,079 0.18% 149,354
Mid PDT Partners, LLC $3,833,862 0.16% 138,207
Large RENAISSANCE TECHNOLOGIES LLC $3,553,494 0.15% 128,100
Large Balyasny Asset Management L.P. $3,427,415 0.14% 123,555
Large Daiwa Securities Group Inc. Broker-Dealer $3,342,670 0.14% 120,500
Mega BNP PARIBAS ARBITRAGE, SA $3,328,494 0.14% 119,989
Large Mariner, LLC $3,264,859 0.14% 117,695
Mid ALGERT GLOBAL LLC $3,192,541 0.13% 115,088
Mega CITIGROUP INC $3,162,941 0.13% 114,021
Mid Oak Thistle LLC $3,136,201 0.13% 113,057
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $3,108,627 0.13% 112,063
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM Pension $3,085,020 0.13% 111,212
Mid Advisors Asset Management, Inc. $3,046,517 0.13% 109,824
Large Point72 Asset Management, L.P. $2,963,547 0.13% 106,833
Large Bridgewater Associates, LP $2,957,084 0.12% 106,600
Small ICON ADVISERS INC/CO $2,953,394 0.12% 106,467
Mega ENVESTNET ASSET MANAGEMENT INC $2,948,789 0.12% 106,301
Large CANADA LIFE ASSURANCE Co Insurance $2,873,558 0.12% 103,589
Large Universal- Beteiligungs- und Servicegesellschaft mbH $2,848,232 0.12% 102,676
Mid Aquatic Capital Management LLC $2,789,978 0.12% 100,576
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $2,721,294 0.11% 98,100
Mid Paralel Advisors LLC $2,716,273 0.11% 97,919
Large PRUDENTIAL FINANCIAL INC $2,670,085 0.11% 96,254
Mega CITADEL ADVISORS LLC $2,660,266 0.11% 95,900
Mega PRICE T ROWE ASSOCIATES INC /MD/ $2,657,464 0.11% 95,799
Mid Quadrature Capital Ltd $2,487,861 0.11% 89,685
Large SEI INVESTMENTS CO $2,463,034 0.10% 88,790
Mega CITADEL ADVISORS LLC $2,405,058 0.10% 86,700
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM Pension $2,370,133 0.10% 85,441
Mega D. E. Shaw & Co., Inc. $2,311,656 0.10% 83,333
Large Creative Planning $2,213,069 0.09% 79,779
Large Thrivent Financial for Lutherans $2,188,047 0.09% 78,877
Large STATE OF WISCONSIN INVESTMENT BOARD $2,141,611 0.09% 77,203
Key facts CIK 1418819 CUSIP 46269C102 13F (30d) 31 filings 12 filers Visit website Investor relations

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