SUSQUEHANNA INTERNATIONAL GROUP, LLP
Position in IRDM — Iridium Communications Inc.
CIK 1446194
BALA CYNWYD, PA
Position in IRDM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$8,091,591
+$5,106,368 QoQ
Shares Held
291,694
+69.8% QoQ
Ownership
0.276%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in IRDM Over Time
Shares Held
Position Value (USD)
Derivatives in IRDM
reported options exposure · as of Mar 31, 2026CallValue
$9,423,278
CallShares
339,700
PutValue
$2,721,294
PutShares
98,100
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Telecom Services
Communication Services · as of Mar 31, 2026SUSQUEHANNA INTERNATIONAL GROUP, LLP holds $565,308,722 across 39 Telecom Services names. IRDM ranks #9 (1.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ECHO |
EchoStar CORP
|
903,313 | $105,750,852 | |
| 2 | TMUS |
T-Mobile US, Inc.
|
435,593 | $91,487,596 | |
| 3 | VZ |
Verizon Communications Inc
|
1,482,737 | $74,433,397 | |
| 4 | CHTR |
Charter Communications, Inc. /Mo/
|
337,143 | $72,782,430 | |
| 5 | T |
At&T Inc.
|
2,352,558 | $68,200,656 | |
| 6 | CMCSA |
Comcast Corp
|
2,336,114 | $67,069,832 | |
| 7 | GSAT |
Globalstar, Inc.
|
508,666 | $33,785,595 | |
| 8 | TIGO |
Millicom International Cellular SA
|
197,403 | $14,793,380 |
All Filings in IRDM
Export CSV
50 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,721,294 | 98,100 | Put | Other | 2026-05-15 | |
| 2026-03-31 | $8,091,591 | 291,694 | Shares | Other | 2026-05-15 | |
| 2026-03-31 | $9,423,278 | 339,700 | Call | Other | 2026-05-15 | |
| 2025-12-31 | $2,375,846 | 136,700 | Put | Other | 2026-02-17 | |
| 2025-12-31 | $1,923,966 | 110,700 | Call | Other | 2026-02-17 | |
| 2025-12-31 | $2,985,223 | 171,762 | Shares | Other | 2026-02-17 | |
| 2025-09-30 | $4,179,295 | 239,364 | Shares | Other | 2025-11-14 | |
| 2025-09-30 | $2,955,978 | 169,300 | Call | Other | 2025-11-14 | |
| 2025-09-30 | $4,047,228 | 231,800 | Put | Other | 2025-11-14 | |
| 2025-06-30 | $2,754,521 | 91,300 | Put | Other | 2025-08-14 | |
| 2025-06-30 | $4,190,613 | 138,900 | Call | Other | 2025-08-14 | |
| 2025-06-30 | $1,908,071 | 63,244 | Shares | Other | 2025-08-14 | |
| 2025-03-31 | $695,539 | 25,459 | Shares | Other | 2025-05-14 | |
| 2025-03-31 | $3,792,016 | 138,800 | Call | Other | 2025-05-14 | |
| 2025-03-31 | $1,997,092 | 73,100 | Put | Other | 2025-05-14 | |
| 2024-12-31 | $691,169 | 23,817 | Shares | Other | 2025-02-14 | |
| 2024-12-31 | $2,582,780 | 89,000 | Call | Other | 2025-02-14 | |
| 2024-12-31 | $3,276,358 | 112,900 | Put | Other | 2025-02-14 | |
| 2024-09-30 | $2,502,990 | 82,200 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $1,588,576 | 52,170 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $1,032,255 | 33,900 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $1,152,646 | 43,300 | Put | Defined | 2024-08-15 | |
| 2024-06-30 | $4,626,556 | 173,800 | Call | Defined | 2024-08-15 | |
| 2024-03-31 | $6,058,656 | 231,600 | Call | Defined | 2024-05-07 | |
| 2024-03-31 | $1,702,074 | 65,064 | Shares | Defined | 2024-05-07 | |
| 2024-03-31 | $2,003,856 | 76,600 | Put | Defined | 2024-05-07 | |
| 2023-12-31 | $1,382,976 | 33,600 | Put | Defined | 2024-02-14 | |
| 2023-12-31 | $635,675 | 15,444 | Shares | Defined | 2024-02-14 | |
| 2023-12-31 | $2,584,848 | 62,800 | Call | Defined | 2024-02-14 | |
| 2023-09-30 | $2,415,519 | 53,100 | Put | Defined | 2023-11-14 | |
| 2023-09-30 | $20,184,322 | 443,709 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $10,726,542 | 235,800 | Call | Defined | 2023-11-14 | |
| 2023-06-30 | $50,138,977 | 807,131 | Shares | Defined | 2023-08-11 | |
| 2023-06-30 | $9,752,840 | 157,000 | Call | Defined | 2023-08-11 | |
| 2023-06-30 | $12,225,216 | 196,800 | Put | Defined | 2023-08-11 | |
| 2023-03-31 | $5,171,155 | 83,500 | Call | Defined | 2023-05-16 | |
| 2023-03-31 | $3,653,312 | 58,991 | Shares | Defined | 2023-05-16 | |
| 2023-03-31 | $2,235,673 | 36,100 | Put | Defined | 2023-05-16 | |
| 2022-12-31 | $4,841,880 | 94,200 | Put | Defined | 2023-02-14 | |
| 2022-12-31 | $8,373,060 | 162,900 | Call | Defined | 2023-02-14 | |
| 2022-12-31 | $2,287,967 | 44,513 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $5,701,545 | 128,500 | Call | Defined | 2022-11-14 | |
| 2022-09-30 | $856,341 | 19,300 | Put | Defined | 2022-11-14 | |
| 2022-09-30 | $2,135,838 | 48,137 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $525,464 | 13,990 | Shares | Defined | 2022-08-15 | |
| 2022-06-30 | $920,220 | 24,500 | Put | Defined | 2022-08-15 | |
| 2022-06-30 | $1,750,296 | 46,600 | Call | Defined | 2022-08-15 | |
| 2022-03-31 | $1,170,046 | 29,019 | Shares | Defined | 2022-05-16 | |
| 2022-03-31 | $1,455,552 | 36,100 | Call | Defined | 2022-05-16 | |
| 2022-03-31 | $971,712 | 24,100 | Put | Defined | 2022-05-16 | |
| No filing history on record for this holder in this stock. | ||||||