Iridium Communications Inc.
GB ˙ LSE ˙ US46269C1027
47,52 $ ↓ -5,21 (-9,88%)
2026-06-05
DEL PRIS
SecurityGB:0JDO / Iridium Communications Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership234,248 shares
Latest Disclosed Value $ 6,497,982
Rhumbline Advisers reports 4.34% increase in ownership of 0JDO / Iridium Communications Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 234,248 shares of Iridium Communications Inc. (GB:0JDO) valued at $6,486,327 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 224,509 shares of Iridium Communications Inc.. This represents a change in shares of 4.34% during the quarter. The current value of the position is $11,131,465 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)
2026-05-12 2026-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 234,248 9,739 4.34 6,498 66.55 0.0056
2026-02-13 2025-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 224,509 -42,560 -15.94 3,902 -16.32 0.0032
2025-11-06 2025-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 267,069 -18,692 -6.54 4,663 -45.92 0.0037
2025-08-12 2025-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 285,761 -14,208 -4.74 8,621 5.20 0.0074
2025-05-29 2025-03-31 13F/A-1 IRIDIUM COMMUNICATIONS INC COM COM 46269C102 299,969 -17,485 -5.51 8,195 -11.04 0.0077
2025-04-08 2025-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 299,969 -17,485 8,195 0.0077
2025-05-29 2024-12-31 13F/A-1 IRIDIUM COMMUNICATIONS INC COM COM 46269C102 317,454 -4,407 -1.37 9,212 -6.00 0.0082
2025-01-30 2024-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 317,454 -4,407 9,212 0.0082
2024-11-12 2024-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 321,861 -6,449 -1.96 9,801 12.14 0.0088
2024-08-01 2024-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 328,310 -31,128 -8.66 8,740 -7.05 0.0082
2024-05-09 2024-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 359,438 -19,022 -5.03 9,403 -39.64 0.0090
2024-02-08 2023-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 378,460 -6,176 -1.61 15,577 -10.97 0.0163
2023-11-09 2023-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 384,636 -4,341 -1.12 17,497 -27.59 0.0203
2023-08-08 2023-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 388,977 -8,895 -2.24 24,163 100,579.17 0.0271
2023-05-11 2023-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 397,872 2,544 0.64 25 -99.88 0.0304
2023-02-14 2022-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 395,328 -3,387 -0.85 20,320 14.86 0.0273
2022-11-10 2022-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 398,715 11,259 2.91 17,691 21.56 0.0264
2022-08-11 2022-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 387,456 28,180 7.84 14,553 0.46 0.0212
2022-05-12 2022-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 359,276 3,957 1.11 14,486 -1.26 0.0186
2022-02-10 2021-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 355,319 3,123 0.89 14,671 4.53 0.0180
2021-11-12 2021-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 352,196 23,855 7.27 14,035 6.89 0.0190
2021-08-05 2021-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 328,341 -14,630 -4.27 13,130 -7.20 0.0172
2021-05-06 2021-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 342,971 -8,189 -2.33 14,148 2.45 0.0192
2021-02-10 2020-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 351,160 15,008 4.46 13,809 60.59 0.0191
2020-11-12 2020-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 336,152 3,453 1.04 8,599 1.59 0.0135
2020-08-13 2020-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 332,699 -25,499 -7.12 8,464 5.81 0.0141
2020-05-06 2020-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 358,198 18,275 5.38 7,999 -4.50 0.0168
2020-02-05 2019-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 339,923 20,784 6.51 8,376 23.34 0.0140
2019-10-23 2019-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 319,139 21,458 7.21 6,791 -1.92 0.0124
2019-08-14 2019-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 297,681 7,967 2.75 6,924 -9.61 0.0130
2019-05-01 2019-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 289,714 4,688 1.64 7,660 45.66 0.0148
2019-01-31 2018-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 285,026 53,879 23.31 5,259 1.12 0.0114
2018-11-07 2018-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 231,147 15,643 7.26 5,201 49.88 0.0100
2018-08-06 2018-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 215,504 18,755 9.53 3,470 56.80 0.0070
2018-05-02 2018-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 196,749 1,899 0.97 2,213 -3.74 0.0046
2018-02-09 2017-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 194,850 26,209 15.54 2,299 32.35 0.0047
2017-11-06 2017-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 168,641 4,350 2.65 1,737 -4.30 0.0038
2017-08-02 2017-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 164,291 1,320 0.81 1,815 15.38 0.0041
2017-05-02 2017-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 162,971 45,106 38.27 1,573 38.96 0.0037
2017-01-27 2016-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 117,865 -1,137 -0.96 1,132 17.31 0.0029
2016-11-08 2016-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 119,002 5,610 4.95 965 -4.17 0.0027
2016-08-11 2016-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 113,392 -21,949 -16.22 1,007 -5.45 0.0030
2016-05-02 2016-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 135,341 13,420 11.01 1,065 3.90 0.0033
2016-02-03 2015-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 121,921 4,395 3.74 1,025 41.77 0.0033
2015-11-04 2015-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 117,526 6,063 5.44 723 -28.63 0.0025
2015-08-04 2015-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 111,463 -1,670 -1.48 1,013 -7.83 0.0032
2015-05-12 2015-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 113,133 13,300 13.32 1,099 12.95 0.0032
2015-02-06 2014-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 99,833 5,245 5.55 973 16.25 0.0028
2014-11-12 2014-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 94,588 0 0.00 837 4.63 0.0025
2014-08-06 2014-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 94,588 14,995 18.84 800 33.78 0.0023
2014-05-06 2014-03-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 79,593 -2,830 -3.43 598 15.89 0.0018
2014-02-03 2013-12-31 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 82,423 -5,700 -6.47 516 -14.85 0.0015
2013-11-05 2013-09-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 88,123 -561 -0.63 606 -11.92 0.0019
2013-08-07 2013-06-30 13F IRIDIUM COMMUNICATIONS INC COM COM 46269C102 88,684 88,684 688 0.0022
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.