Iridium Communications
IRDM
351 hedge funds and large institutions have $2.84B invested in Iridium Communications in 2025 Q1 according to their latest regulatory filings, with 50 funds opening new positions, 137 increasing their positions, 121 reducing their positions, and 46 closing their positions.
31% more call options, than puts
Call options by funds: $12.7M | Put options by funds: $9.7M
13% more repeat investments, than reductions
Existing positions increased: 137 | Existing positions reduced: 121
7.55% more ownership
Funds ownership: 88.02% → 95.58% (+7.6%)
9% more first-time investments, than exits
New positions opened: 50 | Existing positions closed: 46
1% more funds holding
Funds holding: 349 → 351 (+2)
2% less capital invested
Capital invested by funds: $2.91B → $2.84B (-$66.3M)
50% less funds holding in top 10
Funds holding in top 10: 4 → 2 (-2)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AIM
ARK Investment Management
St. Petersburg,
Florida
|
+$69.9M |
| 2 |
Sumitomo Mitsui Trust Group
Minato-Ku, Tokyo,
Japan
|
+$31.2M |
| 3 |
NAMA
Nikko Asset Management Americas
New York
|
+$31.1M |
| 4 |
Millennium Management
New York
|
+$19.1M |
| 5 |
American Century Companies
Kansas City,
Missouri
|
+$13.6M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Victory Capital Management
San Antonio,
Texas
|
-$45.9M |
| 2 |
BAMCO Inc
New York
|
-$43.9M |
| 3 |
BlackRock
New York
|
-$34.7M |
| 4 |
Vanguard Group
Malvern,
Pennsylvania
|
-$28.5M |
| 5 |
AQR Capital Management
Greenwich,
Connecticut
|
-$15.5M |
IRDM Hedge Fund Activity: Q1 2025 in Review
351 of the 7,472 institutional investors tracked by Wall St. Rank reported a position in Iridium Communications (IRDM) for Q1 2025, worth a combined $2.84B — down 2.3% from $2.91B a quarter earlier.
Buyers outnumbered sellers: 50 funds opened new IRDM positions and 46 closed out — a net gain of 4 holders — while 137 added to existing stakes and 121 trimmed.
The largest buyer was ARK Investment Management, adding an estimated $69.9M. The largest seller was Victory Capital Management, cutting an estimated $45.9M.
- 351 institutional investors held Iridium Communications (IRDM) as of Q1 2025, up from 349 in Q4 2024.
- Funds reported $2.84B of Iridium Communications stock for Q1 2025, down 2.3% quarter-over-quarter.
- 50 funds opened new Iridium Communications positions in Q1 2025 and 46 closed out, a net change of +4 holders.
- The largest Iridium Communications buyer in Q1 2025 was ARK Investment Management, an estimated $69.9M added.
- The largest Iridium Communications seller in Q1 2025 was Victory Capital Management, an estimated $45.9M sold.
Based on aggregated 13F filings for Q1 2025.