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IRDM

Iridium Communications Inc.

Company with tickers: IRDM

CIK
1418819
CUSIP
46269C102
Shares Outstanding
105,727,744
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 305
Total Value: $1,946,115,878
Total Shares: 70,155,590
Showing 1–100 of 315 holdings by value · page 1 of 4

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 305 13F filers · Δ vs Dec 31, 2025
Top Holder
19.9%
+3.3 pts
Top 5
48.9%
+13.4 pts
Top 10
63.4%
+14.7 pts
HHI
686
Broadly held +238

Quarterly Activity

vs Dec 31, 2025
New
297
Increased
4
Decreased
2
Sold Out
314
Unchanged
2
Holder count: -17
Institutional value: +33.6%
Shares held: -16.3%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Small Caitong International Asset Management Co., Ltd +5,036 5,067
Small Essential Partners LLC +1,349 2,453
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. +550 2,179
Small SHP Wealth Management +85 116

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega GOLDMAN SACHS GROUP INC −1,394,782 928,388
Mega HSBC HOLDINGS PLC −16,848 27,510

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega BlackRock, Inc. 13,939,618 $386,684,994
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 6,091,749 $168,985,117
Small Silver Heights Capital Management Inc 5,145,479 $142,735,587
Mega STATE STREET CORP 5,050,166 $140,091,604
Mega VANGUARD CAPITAL MANAGEMENT LLC 4,111,325 $114,048,155

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega BlackRock, Inc. 13,891,150 $241,428,176
Small Silver Heights Capital Management Inc 5,251,133 $91,264,691
Mega STATE STREET CORP 4,761,749 $82,759,197
Mega AMERICAN CENTURY COMPANIES INC 3,078,679 $53,507,441
Large ARK Investment Management LLC 2,850,606 $49,543,532
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $386,684,994 19.87% 13,939,618 View
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $168,985,117 8.68% 6,091,749 View
Small Silver Heights Capital Management Inc $142,735,587 7.33% 5,145,479 View
Mega STATE STREET CORP $140,091,604 7.20% 5,050,166 View
Mega VANGUARD CAPITAL MANAGEMENT LLC $114,048,155 5.86% 4,111,325 View
Mega AMERICAN CENTURY COMPANIES INC $96,256,523 4.95% 3,469,954 View
Mega DIMENSIONAL FUND ADVISORS LP $59,892,350 3.08% 2,159,061 View
Large ARK Investment Management LLC $47,901,487 2.46% 1,726,802 View
Mega VAN ECK ASSOCIATES CORP $41,738,380 2.14% 1,504,628 View
Mega UBS Group AG $35,633,720 1.83% 1,284,561 View
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $35,580,405 1.83% 1,282,639 View
Mega Bank of New York Mellon Corp $31,913,478 1.64% 1,150,450 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $30,548,147 1.57% 1,101,231 View
Mega BARCLAYS PLC $27,575,473 1.42% 994,069 View
Mega Invesco Ltd. $27,405,064 1.41% 987,926 View
Mega GOLDMAN SACHS GROUP INC $25,753,482 1.32% 928,388 View
Large JUPITER ASSET MANAGEMENT LTD $24,779,642 1.27% 893,282 View
Mega Sumitomo Mitsui Trust Group, Inc. $21,963,783 1.13% 791,773 View
Mid Amova Asset Management Americas, Inc. $20,443,631 1.05% 736,973 View
Mega JPMORGAN CHASE & CO $19,648,158 1.01% 708,297 View
Mid PINNACLE ASSOCIATES LTD $15,610,435 0.80% 562,741 View
Mega FMR LLC $14,981,069 0.77% 540,053 View
Mega Mitsubishi UFJ Asset Management Co., Ltd. $14,935,964 0.77% 538,427 View
Large PANAGORA ASSET MANAGEMENT INC $14,688,884 0.75% 529,520 View
Mega PRINCIPAL FINANCIAL GROUP INC $14,099,964 0.72% 508,290 View
Mid Penserra Capital Management LLC $13,885,340 0.71% 500,553 View
Mega Nuveen, LLC $11,793,521 0.61% 425,145 View
Mega TWO SIGMA INVESTMENTS, LP $11,163,352 0.57% 402,428 View
Large STIFEL FINANCIAL CORP $11,037,385 0.57% 397,887 View
Mega Legal & General Group Plc $10,504,914 0.54% 378,692 View
Large Public Sector Pension Investment Board $10,416,675 0.54% 375,511 View
Mega RAYMOND JAMES FINANCIAL INC $10,215,975 0.52% 368,276 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $9,973,358 0.51% 359,530 View
Large Russell Investments Group, Ltd. $9,790,747 0.50% 352,947 View
Mega FIRST TRUST ADVISORS LP $9,771,387 0.50% 352,249 View
Mega JANUS HENDERSON GROUP PLC $8,507,413 0.44% 306,684 View
Small Robertson Opportunity Capital, LLC $7,970,978 0.41% 287,346 View
Mid CX Institutional $7,567,111 0.39% 272,787 View
Mega NORDEA INVESTMENT MANAGEMENT AB $7,095,558 0.36% 255,788 View
Mega RHUMBLINE ADVISERS $6,498,039 0.33% 234,248 View
Large BLAIR WILLIAM & CO/IL $6,109,762 0.31% 220,251 View
Mega VICTORY CAPITAL MANAGEMENT INC $6,080,774 0.31% 219,206 View
Large BESSEMER GROUP INC $6,033,033 0.31% 217,485 View
Large PEAK6 LLC $5,869,784 0.30% 211,600 View
Small ArchPoint Investors $5,466,610 0.28% 197,066 View
Large LOS ANGELES CAPITAL MANAGEMENT LLC $5,329,630 0.27% 192,128 View
Mega Swiss National Bank $5,170,736 0.27% 186,400 View
Mega MORGAN STANLEY $4,888,647 0.25% 176,231 View
Mega ALLIANCEBERNSTEIN L.P. $4,685,175 0.24% 168,896 View
Large COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS $4,467,416 0.23% 161,046 View
Micro MORGENS WATERFALL VINTIADIS & CO INC $4,271,960 0.22% 154,000 View
Large Retirement Systems of Alabama $4,199,836 0.22% 151,400 View
Large RENAISSANCE TECHNOLOGIES LLC $3,553,494 0.18% 128,100 View
Large Daiwa Securities Group Inc. $3,342,670 0.17% 120,500 View
Mega BNP PARIBAS ARBITRAGE, SA $3,328,494 0.17% 119,989 View
Large Mariner, LLC $3,264,859 0.17% 117,695 View
Mid ALGERT GLOBAL LLC $3,192,541 0.16% 115,088 View
Mega CITIGROUP INC $3,162,941 0.16% 114,021 View
Mid Oak Thistle LLC $3,136,201 0.16% 113,057 View
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM $3,085,020 0.16% 111,212 View
Large Point72 Asset Management, L.P. $2,963,547 0.15% 106,833 View
Small ICON ADVISERS INC/CO $2,953,394 0.15% 106,467 View
Mega ENVESTNET ASSET MANAGEMENT INC $2,948,789 0.15% 106,301 View
Large CANADA LIFE ASSURANCE Co $2,873,558 0.15% 103,589 View
Large Universal- Beteiligungs- und Servicegesellschaft mbH $2,848,232 0.15% 102,676 View
Mid Paralel Advisors LLC $2,716,273 0.14% 97,919 View
Large PRUDENTIAL FINANCIAL INC $2,670,085 0.14% 96,254 View
Mega CITADEL ADVISORS LLC $2,660,266 0.14% 95,900 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $2,657,464 0.14% 95,799 View
Large SEI INVESTMENTS CO $2,463,034 0.13% 88,790 View
Mega CITADEL ADVISORS LLC $2,405,058 0.12% 86,700 View
Large STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM $2,370,133 0.12% 85,441 View
Mega D. E. Shaw & Co., Inc. $2,311,656 0.12% 83,333 View
Large Creative Planning $2,213,069 0.11% 79,779 View
Large Thrivent Financial for Lutherans $2,188,047 0.11% 78,877 View
Large STATE OF WISCONSIN INVESTMENT BOARD $2,141,611 0.11% 77,203 View
Mid Brooklyn Investment Group $1,992,758 0.10% 71,837 View
Large Vanguard Investments Australia, Ltd. $1,976,558 0.10% 71,253 View
Mega VANGUARD ASSET MANAGEMENT, Ltd $1,926,792 0.10% 69,459 View
Small Range Financial Group LLC $1,903,907 0.10% 68,634 View
Mid SIT INVESTMENT ASSOCIATES INC $1,886,320 0.10% 68,000 View
Mega CITADEL ADVISORS LLC $1,763,514 0.09% 63,573 View
Large CAPITAL FUND MANAGEMENT S.A. $1,754,804 0.09% 63,259 View
Large ExodusPoint Capital Management, LP $1,732,363 0.09% 62,450 View
Large CWM, LLC $1,623,095 0.08% 58,511 View
Large Pathstone Holdings, LLC $1,616,659 0.08% 58,279 View
Large Walleye Capital LLC $1,569,695 0.08% 56,586 View
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $1,499,652 0.08% 54,061 View
Mid WEDGE CAPITAL MANAGEMENT L L P/NC $1,464,782 0.08% 52,804 View
Mid State of Alaska, Department of Revenue $1,437,209 0.07% 51,810 View
Mid Illinois Municipal Retirement Fund $1,431,162 0.07% 51,592 View
Large VOYA INVESTMENT MANAGEMENT LLC $1,425,780 0.07% 51,398 View
Large MACKENZIE FINANCIAL CORP $1,408,664 0.07% 50,781 View
Large Point72 Asset Management, L.P. $1,387,000 0.07% 50,000 View
Mega LPL Financial LLC $1,384,614 0.07% 49,914 View
Large MERCER GLOBAL ADVISORS INC /ADV $1,367,415 0.07% 49,294 View
Large Janney Montgomery Scott LLC $1,367,165 0.07% 49,285 View
Large NEW YORK STATE COMMON RETIREMENT FUND $1,357,651 0.07% 48,942 View
Mega CANADA PENSION PLAN INVESTMENT BOARD $1,334,626 0.07% 48,112 View
Mid Louisiana State Employees Retirement System $1,289,910 0.07% 46,500 View
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