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

Top Sellers

1
BlackRock
BlackRock
New York
$320M
2
BAMCO Inc
BAMCO Inc
New York
$253M
3
Millennium Management
Millennium Management
New York
$25.1M
4
CSS
Cubist Systematic Strategies
Connecticut
$0
5
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$306K
Name Holding Trade Value Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$320M -$27.3M -905,767 -8%
Vanguard Group
2
Vanguard Group
Pennsylvania
$294M -$2.99M -99,197 -1%
BAMCO Inc
3
BAMCO Inc
New York
$253M -$27M -893,377 -10%
AIM
4
ARK Investment Management
Florida
$161M +$13.3M +441,851 +9%
Sumitomo Mitsui Trust Group
5
Sumitomo Mitsui Trust Group
Japan
$130M +$12.8M +422,618 +11%
NAMA
6
Nikko Asset Management Americas
New York
$130M +$12.7M +421,279 +11%
SHCM
7
Silver Heights Capital Management
Ontario, Canada
$128M +$15.1M +501,400 +13%
State Street
8
State Street
Massachusetts
$123M -$11.4M -379,232 -9%
VBA
9
Van Berkom & Associates
Quebec, Canada
$86.4M -$669K -22,167 -0.8%
American Century Companies
10
American Century Companies
Missouri
$79.7M +$13.3M +442,315 +20%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$77.1M +$1.2M +39,804 +2%
Morgan Stanley
12
Morgan Stanley
New York
$74.9M +$8.85M +293,249 +13%
Schroder Investment Management Group
13
Schroder Investment Management Group
United Kingdom
$63M -$1.03M -34,197 -2%
T. Rowe Price Associates
14
T. Rowe Price Associates
Maryland
$59.4M +$685K +22,697 +1%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$57.9M -$3.06M -101,395 -5%
Northern Trust
16
Northern Trust
Illinois
$49.4M -$2.5M -82,919 -5%
ACH
17
ArrowMark Colorado Holdings
Colorado
$39.1M -$8.32M -275,858 -18%
Citadel Advisors
18
Citadel Advisors
Florida
$36.6M +$24.1M +797,486 +192%
Bank of New York Mellon
19
Bank of New York Mellon
New York
$34.4M -$4.43M -146,797 -11%
Charles Schwab
20
Charles Schwab
California
$31M -$1.64M -54,276 -5%
Select Equity Group
21
Select Equity Group
New York
$30.2M +$3.44M +114,182 +13%
Pacer Advisors
22
Pacer Advisors
Pennsylvania
$30.1M -$827K -27,422 -3%
GAM
23
Gotham Asset Management
New York
$28.7M +$2.17M +71,814 +8%
Fidelity Investments
24
Fidelity Investments
Massachusetts
$27M +$2.47M +81,782 +10%
ACMC
25
Anchor Capital Management Company
North Carolina
$26.9M +$3.47M +115,000 +15%
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