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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; 484 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, Q1 2026

Institutional positions in Iridium Communications Inc. as of Mar 31, 2026. 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
382
+63 vs. Q4 2025
Shares held
90.3M
+6.72M (+8.0%) vs. Q4 2025
Total value
$2.50B
+$1.05B (+72.2%) vs. Q4 2025
New holders
108
123 more added
Sold out
45
102 more reduced

6 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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.

Institutional holdersQ1 2026: 382 institutions
Q1 2021: 301 institutionsQ2 2021: 279 institutionsQ3 2021: 310 institutionsQ4 2021: 309 institutionsQ1 2022: 311 institutionsQ2 2022: 310 institutionsQ3 2022: 330 institutionsQ4 2022: 365 institutionsQ1 2023: 373 institutionsQ2 2023: 392 institutionsQ3 2023: 361 institutionsQ4 2023: 347 institutionsQ1 2024: 330 institutionsQ2 2024: 344 institutionsQ3 2024: 353 institutionsQ4 2024: 349 institutionsQ1 2025: 351 institutionsQ2 2025: 332 institutionsQ3 2025: 324 institutionsQ4 2025: 325 institutionsQ1 2026: 382 institutionsQ2 2026: 484 institutions
Value heldQ1 2026: $2.50B
Q1 2021: $4.48BQ2 2021: $4.52BQ3 2021: $4.56BQ4 2021: $4.76BQ1 2022: $4.41BQ2 2022: $4.09BQ3 2022: $4.73BQ4 2022: $5.37BQ1 2023: $6.54BQ2 2023: $6.40BQ3 2023: $4.64BQ4 2023: $4.25BQ1 2024: $2.71BQ2 2024: $2.70BQ3 2024: $3.00BQ4 2024: $2.91BQ1 2025: $2.84BQ2 2025: $3.06BQ3 2025: $1.79BQ4 2025: $1.63BQ1 2026: $2.50BQ2 2026: $5.01B
Institutions holding IRDM and their total value by quarter
QuarterHoldersValue
Q2 2026484$5.01B
Q1 2026382$2.50B
Q4 2025325$1.63B
Q3 2025324$1.79B
Q2 2025332$3.06B
Q1 2025351$2.84B
Q4 2024349$2.91B
Q3 2024353$3.00B
Q2 2024344$2.70B
Q1 2024330$2.71B
Q4 2023347$4.25B
Q3 2023361$4.64B
Q2 2023392$6.40B
Q1 2023373$6.54B
Q4 2022365$5.37B
Q3 2022330$4.73B
Q2 2022310$4.09B
Q1 2022311$4.41B
Q4 2021309$4.76B
Q3 2021310$4.56B
Q2 2021279$4.52B
Q1 2021301$4.48B

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Iridium Communications Inc.; share changes are against Q4 2025.

Institutions holding IRDM in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Asset Management, Ltd69,459$1.93M0.00%+69,459New
Range Financial Group LLC68,634$1.90M0.64%+68,634New
Sit Investment Associates Inc68,000$1.89M0.04%00.0%Unchanged
XTX Topco Ltd66,699$1.85M0.03%+9,588+16.8%Added
Wealth Enhancement Advisory Services, LLC54,061$1.78M0.00%+30,306+127.6%Added
Citadel Advisors LLC63,573$1.76M0.00%−1,076,642−94.4%Reduced
Capital Fund Management S.A.63,259$1.75M0.02%−315,316−83.3%Reduced
ExodusPoint Capital Management, LP62,450$1.73M0.02%−46,794−42.8%Reduced
Quantinno Capital Management LP61,838$1.72M0.00%+20,024+47.9%Added
CWM, LLC58,511$1.62M0.00%+48,918+509.9%Added
Pathstone Holdings, LLC58,279$1.62M0.01%+5,188+9.8%Added
Walleye Capital LLC56,586$1.57M0.01%+47,946+554.9%Added
Worldquant Millennium Advisors LLC55,351$1.54M0.01%−98,598−64.0%Reduced
Cerity Partners LLC55,130$1.53M0.00%+55,130New
Wedge Capital Management L L P52,804$1.46M0.03%−9,575−15.3%Reduced
State of Alaska, Department of Revenue51,810$1.44M0.02%−1,524−2.9%Reduced
Illinois Municipal Retirement Fund51,592$1.43M0.02%+51,592New
Voya Investment Management LLC51,398$1.43M0.00%−62,075−54.7%Reduced
Mackenzie Financial Corp50,781$1.41M0.00%+32,466+177.3%Added
LPL Financial LLC49,914$1.38M0.00%+1,516+3.1%Added
Mercer Global Advisors Inc49,294$1.37M0.00%+38,186+343.8%Added
Janney Montgomery Scott LLC49,285$1.37M0.00%−2,822−5.4%Reduced
State of Tennessee, Treasury Department49,256$1.37M0.00%+561+1.2%Added
New York State Common Retirement Fund48,942$1.36M0.00%+5,400+12.4%Added
Canada Pension Plan Investment Board48,112$1.33M0.00%−16,400−25.4%Reduced
Louisiana State Employees Retirement System46,500$1.29M0.02%−1,500−3.1%Reduced
GWM Advisors LLC45,198$1.25M0.00%+44,796+11,143.3%Added
Vontobel Holding Ltd.44,095$1.22M0.00%+18,657+73.3%Added
Guidance Capital, Inc30,949$1.21M0.27%+30,949New
Vanguard Global Advisers, LLC42,315$1.17M0.00%+42,315New
South Dakota Investment Council41,500$1.15M0.02%+41,500New
Ieq Capital, LLC41,420$1.15M0.01%+41,420New
Police & Firemen's Retirement System of New Jersey40,446$1.12M0.01%00.0%Unchanged
Canal Insurance CO40,000$1.11M0.24%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)39,978$1.11M0.00%+6,585+19.7%Added
Fifth Third Bancorp39,786$1.10M0.00%+38,419+2,810.5%Added
Treasurer of the State of North Carolina39,332$1.09M0.00%+838+2.2%Added
Harbor Capital Advisors, Inc.38,065$1.06M0.09%+38,065New
Walleye Trading LLC37,660$1.04M0.02%+5,582+17.4%Added
Susquehanna Portfolio Strategies, LLC36,089$1.00M0.01%00.0%Unchanged
Royal Bank of Canada35,790$992.0K0.00%+1,531+4.5%Added
Jaffetilchin Investment Partners, LLC35,663$989.3K0.06%−865−2.4%Reduced
Caisse de Depot Et Placement du Quebec35,600$987.5K0.00%+35,600New
Hancock Whitney Corp24,829$970.1K0.02%+2,375+10.6%Added
Amalgamated Bank31,635$878.0K0.01%−2,210−6.5%Reduced
Mirae Asset Global ETFs Holdings Ltd.29,424$816.2K0.00%+6,658+29.2%Added
Public Employees Retirement System of Ohio29,236$811.0K0.00%−635−2.1%Reduced
Wells Fargo & Company28,977$803.8K0.00%−20,907−41.9%Reduced
Neuberger Berman Group LLC28,594$793.2K0.00%+4,037+16.4%Added
Horizon Investments, LLC28,584$792.9K0.01%−6,752−19.1%Reduced
Amundi27,912$774.3K0.00%−111,025−79.9%Reduced
Yousif Capital Management, LLC27,855$772.7K0.01%−457−1.6%Reduced
HSBC Holdings PLC27,510$768.5K0.00%−16,848−38.0%Reduced
Winton Group Ltd27,400$760.1K0.03%−13,900−33.7%Reduced
Davy Global Fund Management Ltd27,320$757.9K0.06%+27,320New
Arizona State Retirement System25,895$718.3K0.00%−649−2.4%Reduced
First Citizens Bank & Trust Co25,728$713.7K0.02%+25,728New
HighTower Advisors, LLC24,971$692.7K0.00%+6,455+34.9%Added
Marshall Wace, LLP24,896$690.6K0.00%−123,940−83.3%Reduced
Acadian Asset Management LLC24,935$689.0K0.00%−145,426−85.4%Reduced
Envestnet Portfolio Solutions, Inc.24,795$687.8K0.00%+24,795New
Teachers Retirement System of the State of Kentucky24,521$680.0K0.01%00.0%Unchanged
CWM Advisors, LLC24,418$677.4K0.04%−84,747−77.6%Reduced
Nomura Asset Management International Inc.24,357$676.0K0.00%+24,357New
Harvest Fund Management Co., Ltd24,198$671.0K0.03%+24,198New
Oregon Public Employees Retirement Fund24,000$665.8K0.01%00.0%Unchanged
Tudor Investment Corp Et Al23,907$663.2K0.00%−642,139−96.4%Reduced
Commonwealth Equity Services, LLC23,493$651.7K0.00%+2,093+9.8%Added
Cullen Investment Group, Ltd.23,205$643.7K0.08%−1,120−4.6%Reduced
Macquarie Group Ltd23,158$642.4K0.00%−21,389−48.0%Reduced
CBOE Vest Financial, LLC22,931$636.1K0.01%−3,290−12.5%Reduced
IFS Group,LLC22,128$613.8K0.55%+22,128New
KLP Kapitalforvaltning AS21,000$582.5K0.00%00.0%Unchanged
Virtu Financial LLC20,985$582.0K0.02%−32,564−60.8%Reduced
Royce & Associates LP20,912$580.1K0.01%+20,912New
Maryland State Retirement & Pension System20,553$570.1K0.01%+126+0.6%Added
Groupe la Francaise20,438$567.0K0.01%+20,438New
AdvisorShares Investments LLC20,296$563.0K0.10%−8,000−28.3%Reduced
Toronto Dominion Bank20,223$561.0K0.00%+3,199+18.8%Added
Corsair Capital Management, L.P.20,000$554.8K0.08%+20,000New
Alps Advisors Inc19,920$552.6K0.00%+19,920New
WealthTrust Axiom LLC19,886$551.6K0.14%−20,609−50.9%Reduced
Cresset Asset Management, LLC19,705$546.6K0.00%00.0%Unchanged
Boothbay Fund Management, LLC19,555$542.5K0.01%+19,555New
McDonald Partners LLC19,525$541.6K0.13%+1,925+10.9%Added
Change Path, LLC19,116$530.3K0.01%+1,676+9.6%Added
Captrust Financial Advisors18,740$519.6K0.00%+18,740New
Manufacturers Life Insurance Company, The18,391$510.2K0.00%+957+5.5%Added
Virginia Retirement Systems Et Al18,150$503.5K0.00%+18,150New
Cambridge Investment Research Advisors, Inc.18,042$500.0K0.00%+18,042New
Laffer Tengler Investments16,913$469.2K0.07%−2,356−12.2%Reduced
M&T Bank Corp15,610$433.2K0.00%+3,672+30.8%Added
Brighton Jones LLC15,564$431.7K0.01%+15,564New
Bank of Montreal15,530$430.8K0.00%−144−0.9%Reduced
Oppenheimer & Co Inc15,297$424.3K0.01%+15,297New
Numerai GP LLC15,295$424.3K0.04%−33,547−68.7%Reduced
Nomura Holdings Inc15,000$416.1K0.00%+15,000New
Krilogy Financial LLC9,575$415.7K0.01%+9,575New
Pictet Asset Management Holding SA14,971$415.3K0.00%+753+5.3%Added
Merit Financial Group, LLC13,988$388.0K0.00%+13,988New