Iridium Communications Inc.
GB ˙ LSE ˙ US46269C1027
47,52 $ ↓ -5,21 (-9,88%)
2026-06-05
DEL PRIS
SecurityGB:0JDO / Iridium Communications Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership128,100 shares
Latest Disclosed Value $ 3,553,494
Renaissance Technologies Llc ownership in 0JDO / Iridium Communications Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 128,100 shares of Iridium Communications Inc. (GB:0JDO) valued at $3,547,089 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 13, 2025 disclosing 0 shares of Iridium Communications Inc.. The current value of the position is $6,087,312 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 128,100 128,100 3,553 0.0056
2025-08-13 2025-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 0 -296,699 -100.00 0 -100.00
2025-05-14 2025-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 296,699 280,669 1,750.90 8,106 1,643.01 0.0123
2025-02-13 2024-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 16,030 -106,269 -86.89 465 -87.51 0.0007
2024-11-13 2024-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 122,299 -96,401 -44.08 3,724 -36.02 0.0056
2024-08-09 2024-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 218,700 -357,999 -62.08 5,822 38,706.67 0.0099
2024-05-13 2024-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 576,699 12,900 2.29 15 -34.78 0.0237
2024-02-13 2023-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 563,799 145,000 34.62 23 21.05 0.0359
2023-11-14 2023-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 418,799 -20,100 -4.58 19 -29.63 0.0325
2023-08-11 2023-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 438,899 -173,400 -28.32 27 -27.03 0.0393
2023-05-12 2023-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 612,299 162,539 36.14 38 60.87 0.0503
2023-02-13 2022-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 449,760 62,461 16.13 23 -99.87 0.0316
2022-11-14 2022-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 387,299 67,400 21.07 17,184 43.02 0.0243
2022-08-12 2022-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 319,899 -368,800 -53.55 12,015 -56.73 0.0142
2022-05-13 2022-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 688,699 438,000 174.71 27,768 168.26 0.0326
2022-02-11 2021-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 250,699 168,900 206.48 10,351 217.52 0.0129
2021-11-12 2021-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 81,799 81,799 3,260 0.0042
2021-05-13 2021-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 0 -48,789 -100.00 0 -100.00
2021-02-10 2020-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 48,789 -313,711 -86.54 1,919 -79.31 0.0021
2020-11-13 2020-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 362,500 -477,700 -56.86 9,273 -56.62 0.0093
2020-08-13 2020-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 840,200 -295,500 -26.02 21,375 -15.71 0.0185
2020-05-14 2020-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 1,135,700 -519,300 -31.38 25,360 -37.81 0.0246
2020-02-13 2019-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 1,655,000 -353,100 -17.58 40,779 -4.57 0.0313
2019-11-13 2019-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 2,008,100 -518,899 -20.53 42,732 -27.30 0.0362
2019-08-12 2019-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 2,526,999 -337,500 -11.78 58,778 -22.39 0.0517
2019-05-14 2019-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 2,864,499 330,200 13.03 75,737 61.98 0.0689
2019-02-12 2018-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 2,534,299 794,399 45.66 46,758 19.44 0.0512
2018-11-13 2018-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 1,739,900 701,300 67.52 39,148 134.12 0.0402
2018-08-13 2018-06-30 13F/A-1 IRIDIUM COMMUNICATIONS COM 46269C102 1,038,600 677,100 187.30 16,721 311.14 0.0182
2018-08-13 2018-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 361,500 4,067
2018-05-14 2018-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 361,500 113,701 45.88 4,067 39.09 0.0044
2018-02-13 2017-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 247,799 33,100 15.42 2,924 32.25 0.0032
2017-11-13 2017-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 214,699 111,600 108.25 2,211 94.12 0.0026
2017-08-11 2017-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 103,099 103,099 -51.98 1,139 -48.48 0.0015
2017-02-13 2016-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 0 -156,600 -100.00 0 -100.00
2016-11-14 2016-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 156,600 93,900 149.76 1,270 128.01 0.0022
2016-08-12 2016-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 62,700 62,700 -59.96 557 -56.14 0.0011
2016-02-11 2015-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 0 -178,399 -100.00 0 -100.00
2015-11-12 2015-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 178,399 178,399 0.00 1,097 0.0026
2015-08-14 2015-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 0 -68,100 -100.00 0 -100.00
2015-05-13 2015-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 68,100 -132,699 -66.09 661 -66.24 0.0014
2015-02-13 2014-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 200,799 -47,900 -19.26 1,958 -11.04 0.0047
2014-11-12 2014-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 248,699 131,000 111.30 2,201 120.98 0.0060
2014-08-13 2014-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 117,699 45,050 62.01 996 119.38 0.0023
2014-02-14 2013-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 72,649 72,649 -38.28 454 -54.42 0.0011
2013-11-13 2013-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 0 -118,249 -100.00 0 -100.00
2013-08-12 2013-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 118,249 118,249 918 0.0024
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.