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Iridium Communications
IRDM

Overview Fund Activity

323 hedge funds and large institutions have $3B invested in Iridium Communications in 2025 Q2 according to their latest regulatory filings, with 47 funds opening new positions, 106 increasing their positions, 142 reducing their positions, and 67 closing their positions.

Holders
323
Holders Change
-26
Holders Change %
-7.45%
% of All Funds
4.34%
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
106
Reduced
142
Closed
67
Calls
$14.2M
Puts
$25.9M
Net Calls
-$11.7M
Net Calls Change
-$14.7M

Top Buyers

1
Citadel Advisors
1
Citadel Advisors
Florida
$36.6M
2
SAM
2
Synergy Asset Management
Washington
$20M
3
Norges Bank
3
Norges Bank
Norway
$16.3M
4
SHCM
4
Silver Heights Capital Management
Ontario, Canada
$128M
5
American Century Companies
5
American Century Companies
Missouri
$79.7M

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 Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$320M 10,616,396 -905,767 -8%
Vanguard Group
2
Vanguard Group
Pennsylvania
$294M 9,738,517 -99,197 -1%
BAMCO Inc
3
BAMCO Inc
New York
$253M 8,377,907 -893,377 -10%
AIM
4
ARK Investment Management
Florida
$161M 5,333,528 +441,851 +9%
Sumitomo Mitsui Trust Group
5
Sumitomo Mitsui Trust Group
Japan
$130M 4,315,763 +422,618 +11%
NAMA
6
Nikko Asset Management Americas
New York
$130M 4,310,324 +421,279 +11%
SHCM
7
Silver Heights Capital Management
Ontario, Canada
$128M 4,228,263 +501,400 +13%
State Street
8
State Street
Massachusetts
$123M 4,076,371 -379,232 -9%
VBA
9
Van Berkom & Associates
Quebec, Canada
$86.4M 2,863,178 -22,167 -0.8%
American Century Companies
10
American Century Companies
Missouri
$79.7M 2,640,658 +442,315 +20%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$77.1M 2,556,273 +39,804 +2%
Morgan Stanley
12
Morgan Stanley
New York
$74.9M 2,481,737 +293,249 +13%
T. Rowe Price Associates
13
T. Rowe Price Associates
Maryland
$59.4M 1,968,549 +22,697 +1%
Geode Capital Management
14
Geode Capital Management
Massachusetts
$57.9M 1,919,215 -101,395 -5%
Northern Trust
15
Northern Trust
Illinois
$49.4M 1,636,765 -82,919 -5%
ACH
16
ArrowMark Colorado Holdings
Colorado
$39.1M 1,296,544 -275,858 -18%
Citadel Advisors
17
Citadel Advisors
Florida
$36.6M 1,212,834 +797,486 +192%
Bank of New York Mellon
18
Bank of New York Mellon
New York
$34.4M 1,140,958 -146,797 -11%
Charles Schwab
19
Charles Schwab
California
$31M 1,028,003 -54,276 -5%
Select Equity Group
20
Select Equity Group
New York
$30.2M 1,001,350 +114,182 +13%
Pacer Advisors
21
Pacer Advisors
Pennsylvania
$30.1M 999,259 -27,422 -3%
GAM
22
Gotham Asset Management
New York
$28.7M 951,199 +71,814 +8%
Fidelity Investments
23
Fidelity Investments
Massachusetts
$27M 894,272 +81,782 +10%
ACMC
24
Anchor Capital Management Company
North Carolina
$26.9M 890,917 +115,000 +15%
Barclays
25
Barclays
United Kingdom
$26.4M 875,680 -44,288 -5%
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