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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.

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
1
Citadel Advisors
Florida
$36.6M
2
SAM
2
Synergy Asset Management
Washington
$20M
3
SHCM
3
Silver Heights Capital Management
Ontario, Canada
$128M
4
American Century Companies
4
American Century Companies
Missouri
$79.7M
5
AIM
5
ARK Investment Management
Florida
$161M

Top Sellers

1
BlackRock
1
BlackRock
New York
$320M
2
BAMCO Inc
2
BAMCO Inc
New York
$253M
3
Millennium Management
3
Millennium Management
New York
$25.1M
4
CSS
4
Cubist Systematic Strategies
Connecticut
$0
5
Qube Research & Technologies (QRT)
5
Qube Research & Technologies (QRT)
United Kingdom
$306K
Name Holding Trade Value Shares
Change 		Shares
Change %
SC
326
Stephens Consulting
Michigan
$31 +$31 +1 New
CSS
327
Cubist Systematic Strategies
Connecticut
– -$13.9M -507,355 Closed
Renaissance Technologies
328
Renaissance Technologies
New York
– -$8.11M -296,699 Closed
TC
329
TwinBeech Capital
New York
– -$7.57M -277,022 Closed
PAM
330
Panagora Asset Management
Massachusetts
– -$6.39M -233,822 Closed
CIBC World Market
331
CIBC World Market
Ontario, Canada
– -$4.34M -158,888 Closed
AG
332
Algert Global
California
– -$3.74M -136,742 Closed
CF
333
Corebridge Financial
Texas
– -$3.29M -120,352 Closed
EP
334
Edgestream Partners
New Jersey
– -$2.85M -104,462 Closed
BA
335
Bridgewater Associates
Connecticut
– -$2.23M -81,731 Closed
DTL
336
Dynamic Technology Lab
Singapore
– -$1.68M -61,598 Closed
XT
337
XTX Topco
Cayman Islands
– -$1.58M -57,742 Closed
Tudor Investment Corp
338
Tudor Investment Corp
Connecticut
– -$1.57M -57,613 Closed
SM
339
Sciencast Management
New Jersey
– -$1.38M -50,389 Closed
CC
340
Centiva Capital
New York
– -$1.14M -41,856 Closed
Amundi
341
Amundi
France
– -$1.04M -40,479 Closed
TAM
342
Tealwood Asset Management
Minnesota
– -$1.1M -40,070 Closed
LAM
343
LECAP Asset Management
United Kingdom
– -$1.09M -39,845 Closed
CCIA
344
Campbell & Co Investment Adviser
Maryland
– -$1.04M -38,048 Closed
Impax Asset Management Group
345
Impax Asset Management Group
United Kingdom
– -$962K -35,227 Closed
Cerity Partners
346
Cerity Partners
New York
– -$815K -29,824 Closed
BCM
347
Bayesian Capital Management
New York
– -$762K -27,900 Closed
MCC
348
Malaga Cove Capital
California
– -$711K -26,021 Closed
WSCM
349
Wellington Shields Capital Management
New York
– -$672K -24,600 Closed
AC
350
AXQ Capital
New Jersey
– -$609K -22,296 Closed
12 13
14
15 16