Iridium Communications Inc. - Common Stock (IRDM) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
IRDM on Nasdaq
Shares outstanding
104,582,192
Price per share
$17.38
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
100,135,157
Total reported value
$1,748,611,151
% of total 13F portfolios
0.01%
Share change
-815,675
Value change
-$104,859,826
Number of holders
316
Price from insider filings
$17.38
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Iridium Communications Inc. - Common Stock (IRDM) based on Schedule 13D/G filings

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 10% +3.6% $180,690,709 10,432,489 0% Baralonco Limited 24 Nov 2025
ARK Investment Management LLC 3.9% -36% $68,710,210 -$39,609,693 4,116,849 -37% ARK Investment Management LLC 30 Nov 2025
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 Sep 2025, 316 institutional investors reported holding 100,135,157 shares of Iridium Communications Inc. - Common Stock (IRDM). This represents 96% of the company’s total 104,582,192 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Iridium Communications Inc. - Common Stock (IRDM) together control 71% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
BlackRock, Inc. 11% 10,995,964 +3.6% 0% $191,989,540
VANGUARD GROUP INC 9.1% 9,479,969 -2.7% 0% $165,520,259
ARK Investment Management LLC 6.2% 6,490,108 +22% 0.67% $113,317,286
Silver Heights Capital Management Inc 5% 5,189,703 +23% 41% $90,612,214
Sumitomo Mitsui Trust Group, Inc. 4.2% 4,343,670 +0.65% 0.04% $75,840,478
Amova Asset Management Americas, Inc. 4.1% 4,313,080 +0.06% 0.73% $75,263,246
STATE STREET CORP 3.9% 4,035,893 -0.99% 0% $70,466,692
MILLENNIUM MANAGEMENT LLC 2.9% 3,039,731 +266% 0.04% $53,073,703
AMERICAN CENTURY COMPANIES INC 2.8% 2,878,902 +9% 0.03% $50,265,671
DIMENSIONAL FUND ADVISORS LP 2.2% 2,327,395 -9% 0.01% $40,634,023
Man Group plc 1.9% 2,012,077 +226% 0.07% $35,130,865
GOLDMAN SACHS GROUP INC 1.8% 1,914,267 +1431% 0% $33,423,107
MORGAN STANLEY 1.8% 1,838,230 -26% 0% $32,095,513
Pacer Advisors, Inc. 1.7% 1,744,095 +75% 0.08% $30,451,899
GEODE CAPITAL MANAGEMENT, LLC 1.6% 1,703,977 -11% 0% $29,758,004
CITADEL ADVISORS LLC 1.6% 1,649,843 +36% 0.02% $28,806,258
BANK OF AMERICA CORP /DE/ 1.5% 1,581,142 +125% 0% $27,606,742
UBS Group AG 1.3% 1,368,527 +87% 0% $23,894,481
Bank of New York Mellon Corp 1% 1,071,996 -6% 0% $18,717,042
Select Equity Group, L.P. 1% 1,061,453 +6% 0.08% $18,532,969
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1% 1,045,074 +1.7% 0% $18,246,992
NORTHERN TRUST CORP 1% 1,043,569 -36% 0% $18,220,715
SCHRODER INVESTMENT MANAGEMENT GROUP 0.95% 992,553 -52% 0.01% $17,151,316
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.9% 937,581 +148% 0.01% $16,370,164
Invesco Ltd. 0.85% 887,349 +25% 0% $15,493,113

Institutional Holders of Iridium Communications Inc. - Common Stock (IRDM) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 388,071 $6,797,026 -$460,932 $17.38 13
2025 Q3 100,135,157 $1,748,611,151 -$104,859,826 $17.46 316
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
2020 Q1 110,180,702 $2,460,443,024 +$49,978,101 $22.33 246
2019 Q4 107,392,683 $2,646,473,160 +$98,596,910 $24.64 255
2019 Q3 103,400,226 $2,200,650,034 +$43,529,102 $21.28 249
2019 Q2 101,331,959 $2,357,009,040 +$119,154,477 $23.26 239
2019 Q1 96,867,731 $2,561,313,700 +$11,432,991 $26.44 250
2018 Q4 96,697,001 $1,783,919,024 -$9,708,500 $18.45 229
2018 Q3 96,945,184 $2,180,868,555 -$11,741,997 $22.50 211
2018 Q2 97,688,852 $1,572,986,657 -$43,754,934 $16.10 204
2018 Q1 101,347,086 $1,141,950,724 -$749,165 $11.25 193
2017 Q4 92,106,914 $1,086,921,304 -$9,355,151 $11.80 192
2017 Q3 92,882,176 $956,868,672 -$1,581,774 $10.30 175
2017 Q2 92,970,918 $1,023,386,148 +$7,697,529 $11.05 186
2017 Q1 92,405,574 $891,374,559 +$141,243,526 $9.65 176
2016 Q4 89,400,257 $858,325,272 +$10,486,472 $9.60 182
2016 Q3 94,368,657 $765,360,381 +$26,592,460 $8.11 160
2016 Q2 91,037,720 $808,232,935 +$40,728,078 $8.88 160
2016 Q1 87,070,292 $685,054,912 +$8,581,350 $7.87 160
2015 Q4 85,916,015 $722,514,457 -$17,686,059 $8.41 166
2015 Q3 88,415,283 $544,162,303 +$11,508,034 $6.15 163
2015 Q2 86,023,720 $782,010,454 +$36,128,881 $9.09 166
2015 Q1 82,018,699 $796,147,833 +$97,492,050 $9.71 162
2014 Q4 72,006,698 $701,515,402 +$3,218,370 $9.75 151
2014 Q3 71,596,059 $633,638,210 +$27,107,497 $8.85 130
2014 Q2 68,593,076 $579,990,195 +$189,651,156 $8.46 126
2014 Q1 46,263,371 $347,324,534 +$7,491,950 $7.51 113