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Iridium Communications
IRDM

Overview Fund Activity

325 hedge funds and large institutions have $3.06B invested in Iridium Communications in 2025 Q2 according to their latest regulatory filings, with 47 funds opening new positions, 107 increasing their positions, 143 reducing their positions, and 68 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
325
Holders Change
-24
Holders Change %
-6.88%
% of All Funds
4.36%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.04%
New
47
Increased
107
Reduced
143
Closed
68
Calls
$18.4M
Puts
$28.7M
Net Calls
-$10.3M
Net Calls Change
-$13.3M

Top Buyers

1
Citadel Advisors
Citadel Advisors
Florida
+$24.1M
2
SAM
Synergy Asset Management
Washington
+$20M
3
SHCM
Silver Heights Capital Management
Ontario, Canada
+$15.1M
4
American Century Companies
American Century Companies
Missouri
+$13.3M
5
AIM
ARK Investment Management
Florida
+$13.3M

Top Sellers

1
BlackRock
BlackRock
New York
-$27.3M
2
BAMCO Inc
BAMCO Inc
New York
-$27M
3
Millennium Management
Millennium Management
New York
-$18.6M
4
CSS
Cubist Systematic Strategies
Connecticut
-$13.9M
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
-$11.5M
Name Holding Trade Value Shares
Change 		Shares
Change %
Retirement Systems of Alabama
51
Retirement Systems of Alabama
Alabama
$8.56M -$8.27K -274 -0.1%
First Trust Advisors
52
First Trust Advisors
Illinois
$8.56M +$1.02M +33,734 +14%
ROC
53
Robertson Opportunity Capital
Texas
$8.55M +$2.87M +95,100 +51%
Principal Financial Group
54
Principal Financial Group
Iowa
$7.39M -$184K -6,109 -2%
AQR Capital Management
55
AQR Capital Management
Connecticut
$6.17M -$6.09M -203,953 -50%
HF
56
HRT Financial
New York
$6.12M +$1.52M +50,315 +33%
Public Sector Pension Investment Board (PSP Investments)
57
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$6.11M +$6.11M +202,501 New
William Blair & Company
58
William Blair & Company
Illinois
$6.02M -$131K -4,350 -2%
California Public Employees Retirement System
59
California Public Employees Retirement System
California
$5.88M +$58.3K +1,932 +1%
SEI Investments
60
SEI Investments
Pennsylvania
$5.7M +$1.02M +33,793 +22%
Swiss National Bank
61
Swiss National Bank
Switzerland
$5.64M -$350K -11,600 -6%
LA
62
LBP AM
France
$5.49M +$989K +32,777 +22%
State of Wisconsin Investment Board
63
State of Wisconsin Investment Board
Wisconsin
$5.19M +$31.8K +1,054 +0.6%
Two Sigma Investments
64
Two Sigma Investments
New York
$5.18M +$3.32M +110,182 +179%
IEFM
65
IQ EQ Fund Management
Ireland
$5.09M +$2.64M +87,529 +108%
COPPSERS
66
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$4.99M -$526K -17,442 -10%
Mitsubishi UFJ Asset Management
67
Mitsubishi UFJ Asset Management
Japan
$4.57M +$785K +26,029 +21%
AllianceBernstein
68
AllianceBernstein
Tennessee
$4.36M -$1.16M -38,522 -21%
BNP Paribas Financial Markets
69
BNP Paribas Financial Markets
France
$4.24M -$5.43M -180,064 -56%
Point72 Asset Management
70
Point72 Asset Management
Connecticut
$4.11M -$1.64M -54,492 -29%
ACM
71
Aquatic Capital Management
Illinois
$4.02M +$518K +17,168 +15%
Ameriprise
72
Ameriprise
Minnesota
$3.88M -$753K -24,950 -16%
Royal Bank of Canada
73
Royal Bank of Canada
Ontario, Canada
$3.78M +$2.32M +76,861 +159%
Goldman Sachs
74
Goldman Sachs
New York
$3.77M -$3.23M -107,160 -46%
AM
75
AGF Management
Ontario, Canada
$3.51M +$908K +30,108 +35%
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