DIMENSIONAL FUND ADVISORS LP

Position in IRDM — Iridium Communications Inc.

CIK 354204 AUSTIN, TX

Back to IRDM Full portfolio

Position in IRDM

as of Mar 31, 2026 · filed May 7, 2026 Compact

Position Value

$59,892,350

+$23,513,857 QoQ

Shares Held

2,159,061

+3.2% QoQ

Ownership

2.04%

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 87.11087829385089.ToString("F0")% Shared 8.241916277492853.ToString("F0")% None 4.647205428656253.ToString("F0")%

Common Shares in IRDM Over Time

Shares Held

Position Value (USD)

Position in Telecom Services

Communication Services · as of Mar 31, 2026

DIMENSIONAL FUND ADVISORS LP holds $6,274,295,695 across 38 Telecom Services names. IRDM ranks #12 (1.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VZ	Verizon Communications Inc	32,734,998	$1,643,296,898
2	T	At&T Inc.	50,056,268	$1,451,131,206
3	CMCSA	Comcast Corp	29,461,308	$845,834,150
4	TMUS	T-Mobile US, Inc.	3,813,709	$800,993,299
5	CHTR	Charter Communications, Inc. /Mo/	1,701,162	$367,246,850
6	TDS	Telephone & Data Systems Inc /De/	6,482,147	$272,898,386
7	AMX	America Movil Sab De Cv/	4,305,379	$109,701,055
8	LBTYA	Liberty Global Ltd.	8,832,267	$106,782,106

All Filings in IRDM

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$59,892,350	2,159,061	+3.2%	Shares	Sole	2026-05-07
2025-12-31	$36,378,493	2,093,124	-10.1%	Shares	Sole	2026-02-12
2025-09-30	$40,636,315	2,327,395	-9.0%	Shares	Sole	2025-11-12
2025-06-30	$77,122,755	2,556,273	+1.6%	Shares	Sole	2025-08-12
2025-03-31	$68,749,930	2,516,469	+22.0%	Shares	Sole	2025-05-13
2024-12-31	$59,841,154	2,062,066	+7.8%	Shares	Sole	2025-02-13
2024-09-30	$58,234,404	1,912,460	-0.9%	Shares	Sole	2024-11-07
2024-06-30	$51,393,048	1,930,618	-0.1%	Shares	Sole	2024-08-09
2024-03-31	$50,536,330	1,931,817	+0.2%	Shares	Sole	2024-05-10
2023-12-31	$79,319,805	1,927,109	-3.0%	Shares	Sole	2024-02-07
2023-09-30	$90,338,726	1,985,903	-3.2%	Shares	Sole	2023-11-09
2023-06-30	$127,477,258	2,052,113	-2.4%	Shares	Sole	2023-08-09
2023-03-31	$130,197,294	2,102,330	-13.8%	Shares	Sole	2023-05-12
2022-12-31	$125,344,242	2,438,604	-1.2%	Shares	Sole	2023-02-09
2022-09-30	$109,505,469	2,468,007	+0.2%	Shares	Sole	2022-11-10
2022-06-30	$92,542,316	2,463,853	-3.8%	Shares	Sole	2022-08-12
2022-03-31	$103,219,200	2,560,000	+0.6%	Shares	Defined	2022-05-13
2021-12-31	$105,055,096	2,544,323	-6.8%	Shares	Defined	2022-02-09
2021-09-30	$108,751,526	2,729,022	-18.2%	Shares	Defined	2021-11-12
2021-06-30	$133,459,866	3,337,331	-19.2%	Shares	Defined	2021-08-12
2021-03-31	$170,379,948	4,130,423	-15.8%	Shares	Defined	2021-05-14
2020-12-31	$192,944,130	4,905,775	-4.8%	Shares	Defined	2021-03-08
2020-09-30	$131,822,769	5,153,353	-2.0%	Shares	Defined	2020-11-12
2020-06-30	$133,769,015	5,258,216	-4.1%	Shares	Defined	2020-08-13
2020-03-31	$122,389,077	5,480,926	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.