Iridium Communications Inc. (IRDM) — Institutional Holders, Q2 2026

484 institutional investment managers reported a IRDM position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← IRDM stock profile

IRDM in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

150

Added to

153

Trimmed

126

Sold out

Biggest buyers

AQR CAPITAL MANAGEMENTAdded · +3,929,245 sh+$215.5M
Pacer AdvisorsNew · +2,168,271 sh+$118.9M
AMERICAN CENTURY COMPANIESAdded · +1,386,486 sh+$76.0M
BALYASNY ASSET MANAGEMENT L.P.Added · +844,017 sh+$46.3M
VAN ECK ASSOCIATESAdded · +766,171 sh+$42.0M

Biggest sellers

Silver Heights Capital ManagementTrimmed · -1,870,532 sh-$102.6M
Man Group plcTrimmed · -1,490,602 sh-$81.8M
Select Equity Group, L.P.Sold out · -942,519 sh-$51.7M
BARCLAYS PLCTrimmed · -907,480 sh-$49.8M
JUPITER ASSET MANAGEMENT LTDSold out · -893,282 sh-$49.0M

IRDM 13F holders ranked 1–100 of 484

Institutional investors reporting a position in Iridium Communications Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 13,447,338 sh	13,447,338	$737.6M	0.01%	-3.5%
2	AQR CAPITAL MANAGEMENT#2 · 6,847,072 sh	6,847,072	$374.3M	0.13%	+134.7%
3	VANGUARD PORTFOLIO MANAGEMENT#3 · 5,440,399 sh	5,440,399	$298.4M	0.01%	-10.7%
4	AMERICAN CENTURY COMPANIES#4 · 4,856,440 sh	4,856,440	$266.4M	0.12%	+40.0%
5	STATE STREET#5 · 4,733,714 sh	4,733,714	$259.6M	<0.01%	-6.3%
6	VANGUARD CAPITAL MANAGEMENT#6 · 4,232,161 sh	4,232,161	$232.1M	<0.01%	+2.9%
7	Silver Heights Capital Management#7 · 3,274,947 sh	3,274,947	$179.6M	55.43%	-36.4%
8	Gotham Asset Management#8 · 2,514,317 sh	2,514,317	$137.9M	0.32%	-25.0%
9	DIMENSIONAL FUND ADVISORS#9 · 2,357,845 sh	2,357,845	$129.3M	0.02%	+9.2%
10	VAN ECK ASSOCIATES#10 · 2,270,799 sh	2,270,799	$124.6M	0.08%	+50.9%
11	Pacer Advisors#11 · 2,168,271 sh	2,168,271	$118.9M	0.30%	New
12	GEODE CAPITAL MANAGEMENT#12 · 2,044,823 sh	2,044,823	$112.2M	<0.01%	+1.9%
13	MORGAN STANLEY#13 · 1,517,404 sh	1,517,404	$83.2M	<0.01%	-4.2%
14	CHARLES SCHWAB INVESTMENT MANAGEMENT#14 · 1,317,782 sh	1,317,782	$72.3M	<0.01%	-3.5%
15	ARK Investment Management#15 · 1,215,113 sh	1,215,113	$66.6M	0.43%	-29.6%
16	Bank of New York Mellon#16 · 1,144,055 sh	1,144,055	$62.8M	0.01%	-0.6%
17	UBS Group AG#17 · 1,005,602 sh	1,005,602	$55.2M	<0.01%	-21.7%
18	BALYASNY ASSET MANAGEMENT L.P.#18 · 967,572 sh	967,572	$53.1M	0.07%	+683.1%
19	Invesco Ltd.#19 · 908,134 sh	908,134	$49.8M	<0.01%	-8.1%
20	NORTHERN#20 · 854,112 sh	854,112	$46.8M	<0.01%	-1.1%
21	Penserra Capital Management#21 · 838,592 sh	838,592	$46.0M	0.35%	+11.0%
22	JPMORGAN CHASE#22 · 789,191 sh	789,191	$43.3M	<0.01%	+11.4%
23	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#23 · 754,424 sh	754,424	$41.4M	0.02%	-31.5%
24	GOLDMAN SACHS GROUP#24 · 726,762 sh	726,762	$39.9M	<0.01%	-21.7%
25	VANGUARD FIDUCIARY#25 · 657,958 sh	657,958	$36.1M	<0.01%	+3.3%
26	SCHRODER INVESTMENT MANAGEMENT GROUP#26 · 641,884 sh	641,884	$35.0M	0.02%	-50.0%
27	RENAISSANCE TECHNOLOGIES#27 · 609,799 sh	609,799	$33.4M	0.05%	+376.0%
28	Sumitomo Mitsui#28 · 587,179 sh	587,179	$32.2M	0.02%	-25.8%
29	Nikko Asset Management Americas#29 · 550,679 sh	550,679	$30.2M	0.39%	-25.3%
30	BROWN ADVISORY#30 · 512,859 sh	512,859	$28.1M	0.04%	+0.1%
31	MASSACHUSETTS FINANCIAL SERVICES#31 · 509,978 sh	509,978	$28.0M	<0.01%	New
32	PRINCIPAL FINANCIAL GROUP#32 · 509,489 sh	509,489	$27.9M	0.01%	+0.2%
33	Nuveen#33 · 502,677 sh	502,677	$27.6M	<0.01%	+18.2%
34	FMR#34 · 483,117 sh	483,117	$26.5M	<0.01%	-10.5%
35	PANAGORA ASSET MANAGEMENT#35 · 482,003 sh	482,003	$26.4M	0.08%	-9.0%
36	Sculptor Capital#36 · 469,000 sh	469,000	$25.7M	0.21%	New
37	FIRST ADVISORS#37 · 465,768 sh	465,768	$25.5M	0.01%	+32.2%
38	Man Group plc#38 · 416,442 sh	416,442	$22.8M	0.04%	-78.2%
39	PUBLIC SECTOR PENSION INVESTMENT BOARD#39 · 407,340 sh	407,340	$22.3M	0.06%	+8.5%
40	Russell Investments Group, Ltd.#40 · 401,808 sh	401,808	$22.0M	0.02%	+13.8%
41	LEUCADIA NATIONAL#41 · 396,110 sh	396,110	$21.7M	0.14%	New
42	PINNACLE ASSOCIATES LTD#42 · 394,679 sh	394,679	$21.6M	—	-29.9%
43	Legal & General Group Plc#43 · 380,075 sh	380,075	$20.8M	<0.01%	+0.4%
44	TWO SIGMA INVESTMENTS#44 · 363,685 sh	363,685	$19.9M	0.01%	-9.6%
45	SUSQUEHANNA INTERNATIONAL GROUP, LLP#45 · 361,703 sh	361,703	$19.8M	<0.01%	+24.0%
46	IMC-Chicago#46 · 354,368 sh	354,368	$19.4M	<0.01%	New
47	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#47 · 340,871 sh	340,871	$18.7M	<0.01%	-5.2%
48	Mitsubishi UFJ Asset Management , Ltd.#48 · 327,899 sh	327,899	$18.0M	0.01%	-39.1%
49	Jupiter Topco#49 · 325,387 sh	325,387	$17.8M	<0.01%	—
50	IEQ CAPITAL#50 · 311,175 sh	311,175	$17.1M	0.08%	+651.3%
51	TEMA ETFS#51 · 309,229 sh	309,229	$17.0M	—	New
52	BRAUN STACEY ASSOCIATES#52 · 295,922 sh	295,922	$16.2M	—	New
53	ALPINE ASSOCIATES MANAGEMENT#53 · 289,700 sh	289,700	$15.9M	0.99%	New
54	Defiance ETFs#54 · 277,161 sh	277,161	$15.4M	0.21%	+8.6%
55	Mariner#55 · 272,397 sh	272,397	$14.9M	0.02%	+131.4%
56	NORDEA INVESTMENT MANAGEMENT AB#56 · 260,001 sh	260,001	$13.9M	0.01%	+1.6%
57	Robertson Opportunity Capital#57 · 250,346 sh	250,346	$13.7M	5.33%	-12.9%
58	BANK OF AMERICA#58 · 245,134 sh	245,134	$13.4M	<0.01%	-30.2%
59	MACKENZIE FINANCIAL#59 · 236,542 sh	236,542	$13.0M	0.01%	+365.8%
60	CUSHING ASSET MANAGEMENT, dba NXG INVESTMENT MANAGEMENT#60 · 236,000 sh	236,000	$12.9M	—	New
61	ArchPoint Investors#61 · 230,796 sh	230,796	$12.7M	2.67%	+17.1%
62	RAYMOND JAMES FINANCIAL#62 · 222,994 sh	222,994	$12.2M	<0.01%	-39.4%
63	BESSEMER GROUP#63 · 217,615 sh	217,615	$11.9M	0.02%	+0.1%
64	Premier Fund Managers Ltd#64 · 206,371 sh	206,371	$11.3M	1.02%	New
65	RHUMBLINE ADVISERS#65 · 198,087 sh	198,087	$10.9M	<0.01%	-15.4%
66	Swiss National Bank#66 · 185,300 sh	185,300	$10.2M	<0.01%	-0.6%
67	AMERIPRISE FINANCIAL#67 · 181,531 sh	181,531	$10.0M	<0.01%	-22.2%
68	Weiss Asset Management#68 · 173,416 sh	173,416	$9.5M	0.10%	New
69	BLAIR WILLIAM#69 · 172,503 sh	172,503	$9.5M	0.02%	-21.7%
70	Cerity Partners#70 · 171,875 sh	171,875	$9.4M	0.01%	+211.8%
71	CX Institutional#71 · 171,098 sh	171,098	$9.4M	—	-37.3%
72	CITIGROUP#72 · 163,745 sh	163,745	$9.0M	<0.01%	+43.6%
73	MILLENNIUM MANAGEMENT#73 · 153,205 sh	153,205	$8.4M	<0.01%	-69.0%
74	Magnetar Financial#74 · 153,186 sh	153,186	$8.4M	0.08%	New
75	Retirement Systems of Alabama#75 · 151,400 sh	151,400	$8.3M	0.03%	0.0%
76	Qube Research & Technologies Ltd#76 · 149,142 sh	149,142	$8.2M	<0.01%	New
77	Amundi#77 · 141,756 sh	141,756	$7.8M	<0.01%	+407.9%
78	PDT Partners#78 · 138,207 sh	138,207	$7.6M	0.40%	0.0%
79	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS#79 · 135,240 sh	135,240	$7.4M	0.04%	-16.0%
80	AQR Arbitrage#80 · 132,611 sh	132,611	$7.2M	0.10%	New
81	Creative Planning#81 · 129,974 sh	129,974	$7.1M	<0.01%	+62.9%
82	VICTORY CAPITAL MANAGEMENT#82 · 128,482 sh	128,482	$7.0M	<0.01%	-41.4%
83	LPL Financial#83 · 127,605 sh	127,605	$7.0M	<0.01%	+155.6%
84	Inspire Investing#84 · 119,707 sh	119,707	$6.6M	—	+390.2%
85	MIRAE ASSET GLOBAL ETFS Ltd.#85 · 115,034 sh	115,034	$6.3M	<0.01%	+291.0%
86	NEW YORK STATE TEACHERS RETIREMENT SYSTEM#86 · 110,111 sh	110,111	$6.0M	—	-1.0%
87	GREAT WEST LIFE ASSURANCE#87 · 109,479 sh	109,479	$6.0M	<0.01%	+5.7%
88	Advisors Asset Management#88 · 106,829 sh	106,829	$5.9M	0.09%	-2.7%
89	PRICE T ROWE ASSOCIATES#89 · 104,140 sh	104,140	$5.7M	<0.01%	+8.7%
90	MERCER GLOBAL ADVISORS#90 · 104,118 sh	104,118	$5.7M	<0.01%	+111.2%
91	XTX Topco Ltd#91 · 100,123 sh	100,123	$5.5M	0.07%	+50.1%
92	STATE OF WISCONSIN INVESTMENT BOARD#92 · 97,778 sh	97,778	$5.4M	0.01%	+26.7%
93	PRUDENTIAL FINANCIAL#93 · 95,599 sh	95,599	$5.2M	<0.01%	-0.7%
94	Quantinno Capital Management#94 · 88,308 sh	88,308	$4.8M	<0.01%	+42.8%
95	BARCLAYS PLC#95 · 86,589 sh	86,589	$4.7M	<0.01%	-91.3%
96	STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM#96 · 85,686 sh	85,686	$4.7M	<0.01%	+0.3%
97	Daiwa Securities Group#97 · 85,400 sh	85,400	$4.7M	<0.01%	-29.1%
98	THRIVENT FINANCIAL FOR LUTHERANS#98 · 82,833 sh	82,833	$4.5M	<0.01%	+5.0%
99	STIFEL FINANCIAL#99 · 79,042 sh	79,042	$4.3M	<0.01%	-80.1%
100	VANGUARD ASSET MANAGEMENT, Ltd#100 · 78,203 sh	78,203	$4.3M	<0.01%	+12.6%

Funds that sold out of IRDM in Q2 2026 (49)

Held IRDM at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held IRDM in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
Select Equity Group, L.P.942,519 sh	942,519	$26.1M
JUPITER ASSET MANAGEMENT LTD893,282 sh	893,282	$24.8M
MORGENS WATERFALL VINTIADIS154,000 sh	154,000	$4.3M
Holocene Advisors149,354 sh	149,354	$4.1M
Oak Thistle113,057 sh	113,057	$3.1M
ICON ADVISERS106,467 sh	106,467	$3.0M
Paralel Advisors97,919 sh	97,919	$2.7M
Edgestream Partners, L.P.75,082 sh	75,082	$2.1M
CITADEL ADVISORS63,573 sh	63,573	$1.8M
CAPITAL FUND MANAGEMENT S.A.63,259 sh	63,259	$1.8M
WORLDQUANT MILLENNIUM ADVISORS55,351 sh	55,351	$1.5M
WINTON GROUP Ltd27,400 sh	27,400	$760.1K
MARSHALL WACE, LLP24,896 sh	24,896	$690.6K
NOMURA ASSET MANAGEMENT INTERNATIONAL24,357 sh	24,357	$676.0K
TUDOR INVESTMENT ET AL23,907 sh	23,907	$663.2K
Cresset Asset Management19,705 sh	19,705	$546.6K
BOOTHBAY FUND MANAGEMENT19,555 sh	19,555	$542.5K
Numerai GP15,295 sh	15,295	$424.3K
NOMURA15,000 sh	15,000	$416.1K
Marex Group plc13,934 sh	13,934	$386.5K
Corecam Pte. Ltd.12,026 sh	12,026	$333.6K
INTECH INVESTMENT MANAGEMENT12,019 sh	12,019	$333.4K
Elo Mutual Pension Insurance11,930 sh	11,930	$330.9K
Dynamic Technology Lab Private Ltd8,648 sh	8,648	$239.9K
Summit Global Investments8,421 sh	8,421	$234.0K
Connor, Clark & Lunn Investment Management Ltd.8,316 sh	8,316	$230.7K
Americana Partners7,792 sh	7,792	$216.2K
Kassira Wealth Management7,261 sh	7,261	$201.4K
Quarry4,019 sh	4,019	$111.5K
QUADRANT CAPITAL GROUP2,776 sh	2,776	$87.5K
Eurizon Capital SGR S.p.A.1,492 sh	1,492	$40.2K
Root Financial Partners1,332 sh	1,332	$37.0K
Pinnacle1,051 sh	1,051	$29.2K
Innovative Asset Advisors Group1,037 sh	1,037	$28.8K
Ancora Advisors966 sh	966	$26.8K
Destiny Wealth Partners920 sh	920	$25.5K
Wealth Preservation Advisors652 sh	652	$18.1K
HAZLETT, BURT & WATSON600 sh	600	$17.0K
Golden State Equity Partners450 sh	450	$12.5K
Acumen Wealth Advisors348 sh	348	$9.7K
Advisory Services Network313 sh	313	$8.7K
Optiver Holding B.V.169 sh	169	$4.7K
SFAM100 sh	100	$2.8K
NATIXIS77 sh	77	$2.1K
Western Wealth Management20 sh	20	$555.00
Vermillion Wealth Management4 sh	4	$111.00
Annis Gardner Whiting Capital Advisors3 sh	3	$84.00
TWIN PEAKS WEALTH ADVISORS3 sh	3	$83.00
CURIO WEALTH1 sh	1	$28.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.