IRIDIUM COMMUNICATIONS INC (IRDM) Institutional Ownership Changes & 13F Activity

IRIDIUM COMMUNICATIONS INC (IRDM). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include ARK Invest, Renaissance Technologies LLC, and Cullen Value Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2023ARK InvestBuy95,3941,548,046$96,164,618
Q1 2023Renaissance Technologies LLCBuy162,539612,299$37,920
Q1 2023ARK InvestSell-41,8031,452,652$89,962,738
Q4 2022ARK InvestSell-274,3251,494,455$76,814,987
Q4 2022Renaissance Technologies LLCBuy62,461449,760$23,118
Q3 2022ARK InvestSell-427,9661,768,780$78,481
Q3 2022Renaissance Technologies LLCBuy67,400387,299$17,184
Q2 2022Renaissance Technologies LLCSell-368,800319,899$12,015
Q2 2022ARK InvestSell-157,5512,196,746$81,521
Q1 2022ARK InvestSell-7,782,3742,354,297$94,925
Q1 2022Renaissance Technologies LLCBuy438,000688,699$27,768
Q4 2021ARK InvestSell-1,836,03110,136,671$418,543
Q4 2021Renaissance Technologies LLCBuy168,900250,699$10,351
Q3 2021ARK InvestSell-1,620,28011,972,702$477,112
Q3 2021Renaissance Technologies LLCBuy33,01081,799$3,260
Q2 2021ARK InvestBuy3,237,83513,592,982$543,583
Q1 2021ARK InvestBuy3,384,91710,355,147$427,150
Q4 2020ARK InvestBuy2,569,2886,970,230$274,104
Q4 2020Renaissance Technologies LLCSell-313,71148,789$1,919
Q3 2020ARK InvestBuy1,129,7514,400,942$112,576
Q3 2020Renaissance Technologies LLCSell-477,700362,500$9,273
Q2 2020ARK InvestBuy1,633,2403,271,191$83,219
Q2 2020Renaissance Technologies LLCSell-295,500840,200$21,375
Q1 2020ARK InvestBuy1,498,9591,637,951$36,575
Q1 2020Renaissance Technologies LLCSell-519,3001,135,700$25,360
Q4 2019Renaissance Technologies LLCSell-353,1001,655,000$40,779
Q4 2019ARK InvestBuy70,793138,992$3,425
Q3 2019Renaissance Technologies LLCSell-518,8992,008,100$42,732
Q3 2019ARK InvestBuy68,19968,199$1,451
Q2 2019Renaissance Technologies LLCSell-337,5002,526,999$58,778

Frequently asked questions about IRDM activity

  • Which institutional owners are buying IRDM?

    Institutional owners buying IRDM include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in IRDM activity?

    "Buy" means an investor increased their reported position in IRDM compared to the prior reporting period. This reflects growing exposure to IRIDIUM COMMUNICATIONS INC (IRDM) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IRDM increasing?

    Institutional interest in IRDM can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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