Security Snapshot

Iridium Communications Inc. - Common Stock, $0.001 par value (IRDM) Institutional Ownership

CUSIP: 46269C102

13F Institutional Holders and Ownership History from Q1 2014 to Q2 2026

Latest Period

Q2 2026

Institutions Reporting

479

Shares (Excl. Options)

91,382,654

Price

$54.85

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Latest holder snapshot 5 signals
Portfolio coverage rank
0.01%
Share change
+1,277,425
Value change
+$153,151,719
Number of holders
479
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
105,752,773
SEC-reported price per share
$48.31
Insider filing price
$48.31
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • IRDM - Iridium Communications Inc. - Common Stock, $0.001 par value is tracked under CUSIP 46269C102.
  • 479 institutions reported positions in Q2 2026.
  • 7 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 378 to 479 between Q1 2026 and Q2 2026.
  • SEC-reported value moved from $2,501,684,938 to $5,008,016,988.

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 479 institutions filings for Q2 2026.

Open SEC evidence

Security key

46269C102

Latest holder period

Q2 2026

13F holders

479

13D/G owners

7

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
7
Security
IRDM
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 12% +29% $227,206,119 +$45,208,925 13,072,774 +25% BlackRock, Inc. 31 Dec 2025
Baralonco Ltd 9.4% -0.9% $537,500,000 10,000,000 0% Baralonco Limited 31 Jul 2026
AQR CAPITAL MANAGEMENT LLC 6.6% $375,157,961 6,979,683 AQR Capital Management, LLC 30 Jun 2026
VANGUARD PORTFOLIO MANAGEMENT LLC 5.8% $169,323,379 6,103,943 Vanguard Portfolio Management 31 Mar 2026
ARK Investment Management LLC 3.9% -36% $68,710,210 -$39,609,693 4,116,849 -37% ARK Investment Management LLC 30 Nov 2025
Silver Heights Capital Management Inc 3.1% -38% $176,028,401 -$106,219,998 3,274,947 -38% Silver Heights Capital Management Inc 30 Jun 2026
BAMCO INC /NY/ 0.65% -89% $11,924,936 -$134,353,321 682,986 -92% Baron Capital Group, Inc. 30 Sep 2025

As of 30 Jun 2026, 479 institutional investors reported holding 91,382,654 shares of Iridium Communications Inc. - Common Stock, $0.001 par value (IRDM). This represents 86% of the company’s total 105,752,773 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
63%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 13% 13,447,338 -3.5% 0.01% $737,586,517
AQR CAPITAL MANAGEMENT LLC 6.5% 6,847,072 +135% 0.13% $374,329,428
VANGUARD PORTFOLIO MANAGEMENT LLC 5.1% 5,440,399 -11% 0.01% $298,405,885
AMERICAN CENTURY COMPANIES INC 4.6% 4,856,440 +40% 0.12% $266,375,756
STATE STREET CORP 4.5% 4,733,714 -6.3% 0.01% $259,644,213
VANGUARD CAPITAL MANAGEMENT LLC 4% 4,232,161 +2.9% 0% $232,134,031
Silver Heights Capital Management Inc 3.1% 3,274,947 -36% 55% $179,630,843
Gotham Asset Management, LLC 2.4% 2,514,317 -25% 0.32% $137,910,287
DIMENSIONAL FUND ADVISORS LP 2.2% 2,357,845 +9.2% 0.02% $129,325,372
VAN ECK ASSOCIATES CORP 2.1% 2,270,799 +51% 0.08% $124,553,325
Pacer Advisors, Inc. 2.1% 2,168,271 +144% 0.31% $118,930,000
GEODE CAPITAL MANAGEMENT, LLC 1.9% 2,044,823 +1.9% 0.01% $112,185,904
MORGAN STANLEY 1.4% 1,517,404 -4.2% 0% $83,229,698
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.2% 1,317,782 -3.5% 0.01% $72,280,343
ARK Investment Management LLC 1.1% 1,215,113 -30% 0.43% $66,648,948
Bank of New York Mellon Corp 1.1% 1,144,055 -0.56% 0.01% $62,751,442
UBS Group AG 0.95% 1,005,602 -22% 0.01% $55,157,270
Balyasny Asset Management L.P. 0.91% 967,572 +683% 0.1% $53,071,324
Invesco Ltd. 0.86% 908,134 -8.1% 0% $49,811,150
NORTHERN TRUST CORP 0.81% 854,112 -1.1% 0.01% $46,848,043
Penserra Capital Management LLC 0.79% 838,592 +11% 0.35% $45,996,000
JPMORGAN CHASE & CO 0.75% 789,191 +11% 0% $43,323,552
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.71% 754,424 -31% 0.02% $41,380,156
GOLDMAN SACHS GROUP INC 0.69% 726,762 -22% 0% $39,862,882
VANGUARD FIDUCIARY TRUST CO 0.62% 657,958 +3.3% 0.01% $36,088,996

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
50
Latest
Q2 2026
Rows shown
1-25 of 50
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q2 91,382,654 $5,008,016,988 +$153,151,719 $54.85 479
2026 Q1 90,279,674 $2,501,684,938 -$70,262,101 $27.74 378
2025 Q4 93,784,190 $1,630,525,524 -$121,727,138 $17.38 325
2025 Q3 100,148,939 $1,748,851,618 -$101,287,829 $17.46 320
2025 Q2 101,583,259 $3,064,832,693 -$36,316,985 $30.17 327
2025 Q1 103,241,450 $2,820,301,419 +$75,305,788 $27.32 347
2024 Q4 100,200,764 $2,908,022,962 +$52,351,017 $29.02 347
2024 Q3 97,432,209 $2,967,783,084 -$81,611,819 $30.45 349
2024 Q2 101,329,509 $2,697,447,834 -$56,691,349 $26.62 342
2024 Q1 103,348,438 $2,704,515,964 -$119,322,775 $26.16 324
2023 Q4 103,205,853 $4,247,740,866 -$460,732 $41.16 340
2023 Q3 101,964,207 $4,638,610,036 -$102,595,198 $45.49 355
2023 Q2 103,022,157 $6,399,379,438 -$154,978,884 $62.12 386
2023 Q1 105,571,361 $6,537,223,591 +$92,687,558 $61.93 363
2022 Q4 104,741,649 $5,384,780,367 -$112,566,066 $51.40 357
2022 Q3 107,098,158 $4,751,139,964 -$97,843,227 $44.37 322
2022 Q2 109,052,661 $4,094,200,810 +$2,258,085 $37.56 299
2022 Q1 109,628,926 $4,416,065,614 -$230,001,568 $40.32 303
2021 Q4 115,467,289 $4,756,559,180 +$39,833,282 $41.29 302
2021 Q3 114,316,694 $4,555,683,260 +$48,265,659 $39.85 300
2021 Q2 113,043,098 $4,520,682,821 +$175,671,528 $39.99 271
2021 Q1 108,779,424 $4,479,864,642 -$174,605,446 $41.25 295
2020 Q4 112,949,087 $4,436,586,915 +$94,399,900 $39.32 262
2020 Q3 111,118,123 $2,841,967,822 -$23,482,072 $25.58 244
2020 Q2 111,970,037 $2,845,652,469 +$61,090,077 $25.44 244
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