BLAIR WILLIAM & CO/IL

Position in IRDM — Iridium Communications Inc.

CIK 902367 CHICAGO, IL

Position in IRDM

as of Mar 31, 2026 · filed May 8, 2026 Compact

Position Value

$6,109,762

+$2,026,192 QoQ

Shares Held

220,251

-6.3% QoQ

Ownership

0.208%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 88.99306249205455.ToString("F0")% Shared 0.ToString("F0")% None 11.006937507945445.ToString("F0")%

Communication Services · as of Mar 31, 2026

BLAIR WILLIAM & CO/IL holds $61,362,725 across 9 Telecom Services names. IRDM ranks #3 (10.0% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	VZ	Verizon Communications Inc	606,441	$30,443,338
2	T	At&T Inc.	440,219	$12,761,948
3	IRDM	Iridium Communications Inc. This page	220,251	$6,109,762
4	TMUS	T-Mobile US, Inc.	21,604	$4,537,488
5	CMCSA	Comcast Corp	133,103	$3,821,387
6	CCOI	Cogent Communications Holdings, Inc.	166,521	$3,137,255
7	VOD	Vodafone Group Public Ltd Co	22,523	$338,295
8	LUMN	Lumen Technologies, Inc.	29,246	$203,259

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,109,762	220,251	-6.3%	Shares	Sole	2026-05-08
2025-12-31	$4,083,570	234,958	+3.2%	Shares	Sole	2026-02-17
2025-09-30	$3,976,183	227,731	+14.1%	Shares	Sole	2025-11-12
2025-06-30	$6,022,263	199,611	-2.1%	Shares	Sole	2025-07-24
2025-03-31	$5,572,214	203,961	-21.9%	Shares	Sole	2025-05-09
2024-12-31	$7,578,224	261,138	-10.2%	Shares	Sole	2025-02-12
2024-09-30	$8,859,457	290,951	-2.9%	Shares	Sole	2024-11-12
2024-06-30	$7,977,960	299,698	-8.3%	Shares	Sole	2024-08-12
2024-03-31	$8,548,852	326,791	-25.5%	Shares	Sole	2024-05-09
2023-12-31	$18,049,730	438,526	-26.3%	Shares	Sole	2024-02-12
2023-09-30	$27,059,862	594,853	+34.1%	Shares	Sole	2023-11-09
2023-06-30	$27,559,351	443,647	+1.4%	Shares	Sole	2023-08-11
2023-03-31	$27,083,846	437,330	+22.3%	Shares	Sole	2023-05-12
2022-12-31	$18,386,962	357,723	+1.1%	Shares	Sole	2023-02-10
2022-09-30	$15,703,607	353,924	-1.6%	Shares	Sole	2022-11-09
2022-06-30	$13,515,289	359,832	-7.8%	Shares	Sole	2022-08-10
2022-03-31	$15,728,388	390,089	-3.8%	Shares	Sole	2022-05-13
2021-12-31	$16,736,364	405,337	-1.5%	Shares	Sole	2022-02-14
2021-09-30	$16,405,288	411,676	+12.0%	Shares	Sole	2021-11-12
2021-06-30	$14,703,883	367,689	-1.0%	Shares	Sole	2021-08-12
2021-03-31	$15,324,127	371,494	-2.0%	Shares	Sole	2021-05-13
2020-12-31	$14,905,204	378,978	+7.8%	Shares	Sole	2021-02-09
2020-09-30	$8,993,621	351,588	+21.2%	Shares	Sole	2020-11-06
2020-06-30	$7,381,823	290,166	-1.8%	Shares	Sole	2020-08-12
2020-03-31	$6,597,644	295,461	—	Shares	Sole	2020-05-11
No filing history on record for this holder in this stock.