Iridium Communications Inc.
US ˙ NasdaqGS ˙ US46269C1027

SecurityIRDM / Iridium Communications Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership13,773 shares
Latest Disclosed Value $ 382,002
Advisor Group Holdings, Inc. reports 18.00% decrease in ownership of IRDM / Iridium Communications Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 13,773 shares of Iridium Communications Inc. (US:IRDM) valued at $382,063 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 16,797 shares of Iridium Communications Inc.. This represents a change in shares of -18.00% during the quarter. The current value of the position is $652,289 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)
2026-05-15 2026-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 13,773 -3,024 -18.00 382 31.27 0.0003
2026-02-17 2025-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 16,797 -58,407 -77.66 292 -83.92 0.0004
2025-11-14 2025-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 75,204 59,074 366.24 1,811 272.43 0.0025
2025-09-04 2025-06-30 13F/A-1 IRIDIUM COMMUNICATIONS COM 46269C102 16,130 6,603 69.31 487 86.92 0.0009
2025-08-13 2025-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 7,044 -2,483 211 0.0002
2025-05-12 2025-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 9,527 7,355 338.63 260 312.70 0.0006
2025-06-06 2024-12-31 13F/A-1 IRIDIUM COMMUNICATIONS COM 46269C102 2,172 172 8.60 63 5.00 0.0001
2025-02-07 2024-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 1,843 -157 55 0.0001
2024-11-13 2024-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 2,000 -881 -30.58 61 -21.05 0.0001
2024-08-13 2024-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 2,881 -8,215 -74.04 77 -73.79 0.0002
2024-05-10 2024-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 11,096 4,410 65.96 290 5.45 0.0006
2024-02-12 2023-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 6,686 -4,272 -38.99 275 -44.78 0.0005
2023-11-13 2023-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 10,958 -12,711 -53.70 498 -66.10 0.0007
2023-08-21 2023-06-30 13F/A-1 IRIDIUM COMMUNICATIONS COM 46269C102 23,669 1,228 5.47 1,469 5.84 0.0026
2023-08-10 2023-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 23,669 1,228 1,469 0.0004
2023-05-12 2023-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 22,441 5,010 28.74 1,389 54.74 0.0026
2023-02-10 2022-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 17,431 6,482 59.20 897 84.19 0.0018
2022-11-14 2022-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 10,949 -386 -3.41 487 14.05 0.0011
2022-08-10 2022-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 11,335 938 9.02 427 2.40 0.0009
2022-05-04 2022-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 10,397 -1,338 -11.40 417 -13.84 0.0008
2022-02-03 2021-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 11,735 480 4.26 484 8.04 0.0009
2021-11-05 2021-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 11,255 889 8.58 448 8.21 0.0009
2021-08-02 2021-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 10,366 -1,050 -9.20 414 -11.91 0.0009
2021-05-13 2021-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 11,416 -1,952 -14.60 470 -10.65 0.0011
2021-02-10 2020-12-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 13,368 -1,630 -10.87 526 36.98 0.0014
2020-11-12 2020-09-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 14,998 -2,393 -13.76 384 -13.32 0.0011
2020-08-14 2020-06-30 13F IRIDIUM COMMUNICATIONS COM 46269C102 17,391 -3,492 -16.72 443 41.99 0.0015
2020-05-18 2020-03-31 13F IRIDIUM COMMUNICATIONS COM 46269C102 20,883 20,883 312 0.0013
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.