Iridium Communications Inc. (IRDM) - 13D/13G Filings

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2026-04-02
3:48 pm
Sale
2026-04-0213DIRIDIUM COMM INC
IRDM
Baralonco Limited10,000,000
9.530%
-432,489decrease
(-4.15%)
Filing
History
2026-03-26
2:48 pm
Sale
2026-03-1313GIRIDIUM COMM INC
IRDM
VANGUARD GROUP INC0
0.000%
-10,767,247decrease
(Position Closed)
Filing
History
2026-03-05
1:24 pm
Sale
2026-02-2713GIRIDIUM COMM INC
IRDM
VANGUARD GROUP INC10,767,247
10.250%
-986,090decrease
(-8.39%)
Filing
History
2026-02-13
3:54 pm
Unchanged
2025-12-3113GIRIDIUM COMM INC
IRDM
Silver Heights Capital Management Inc5,251,133
5.000%
0
(Unchanged)
Filing
History
2026-02-13
12:08 pm
Purchase
2025-12-3113GIRIDIUM COMM INC
IRDM
Silver Heights Capital Management Inc5,251,133
5.000%
5,251,133increase
(New Position)
Filing
History
2026-01-08
1:28 pm
Purchase
2025-12-3113GIRIDIUM COMM INC
IRDM
BlackRock Inc.
BLK
13,072,774
12.500%
2,601,189increase
(+24.84%)
Filing
History
2025-12-05
10:57 am
Sale
2025-11-3013GIRIDIUM COMM INC
IRDM
ARK Investment Management LLC4,116,849
3.930%
-2,373,259decrease
(-36.57%)
Filing
History
2025-11-26
5:02 pm
Unchanged
2025-11-2413DIRIDIUM COMM INC
IRDM
Baralonco Limited10,432,489
9.960%
0
(Unchanged)
Filing
History
2025-11-14
11:24 am
Sale
2025-09-3013GIRIDIUM COMM INC
IRDM
BAMCO INC682,986
0.650%
-7,694,921decrease
(-91.85%)
Filing
History
2025-11-04
4:53 pm
Sale
2025-09-3013GIRIDIUM COMM INC
IRDM
ARK Investment Management LLC6,490,108
6.120%
-3,646,563decrease
(-35.97%)
Filing
History
2025-08-14
11:35 am
Sale
2025-06-3013GIRIDIUM COMM INC
IRDM
BAMCO INC8,377,907
7.750%
-2,740,878decrease
(-24.65%)
Filing
History
2025-06-26
6:05 pm
Unchanged
2025-06-2413DIRIDIUM COMM INC
IRDM
Baralonco Limited10,432,489
9.600%
0
(Unchanged)
Filing
History
2025-04-23
8:39 pm
Sale
2025-03-3113GIRIDIUM COMM INC
IRDM
BlackRock Inc.
BLK
10,471,585
9.600%
-2,234,245decrease
(-17.58%)
Filing
History
2025-02-05
1:23 pm
Purchase
2024-12-3113GIRIDIUM COMM INC
IRDM
BlackRock Inc.
BLK
12,705,830
11.200%
403,586increase
(+3.28%)
Filing
History
2024-11-14
10:09 am
Sale
2024-09-3013GIRIDIUM COMM INC
IRDM
BAMCO INC11,118,785
9.390%
-2,926,990decrease
(-20.84%)
Filing
History
2024-11-13
10:22 am
Sale
2024-11-1413GIRIDIUM COMM INC
IRDM
Capital International Investors0
0.000%
-7,403,313decrease
(Position Closed)
Filing
History
2024-06-07
1:30 pm
Purchase
2024-05-3113GIRIDIUM COMM INC
IRDM
BlackRock Inc.
BLK
12,302,244
10.100%
922,933increase
(+8.11%)
Filing
History
2024-02-14
10:34 am
Sale
2024-02-1413GIRIDIUM COMM INC
IRDM
BAMCO INC14,045,775
11.340%
-465,543decrease
(-3.21%)
Filing
History
2024-02-13
5:07 pm
Sale
2023-12-2913GIRIDIUM COMM INC
IRDM
VANGUARD GROUP INC11,753,337
9.490%
-959,821decrease
(-7.55%)
Filing
History
2024-02-09
6:03 pm
Sale
2024-02-0713GIRIDIUM COMM INC
IRDM
Capital International Investors7,403,313
6.000%
-524,318decrease
(-6.61%)
Filing
History
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