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
-$104,859,949
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 450,515 $7,882,303 -$532,816 $17.38 16
2025 Q3 100,135,157 $1,748,611,151 -$104,859,949 $17.46 316
2025 Q2 101,583,259 $3,064,832,693 -$36,316,956 $30.17 327
2025 Q1 103,241,450 $2,820,301,660 +$75,305,801 $27.32 347
2024 Q4 100,111,992 $2,905,452,951 +$95,544,907 $29.02 345
2024 Q3 95,854,985 $2,919,756,760 -$121,033,050 $30.45 347
2024 Q2 101,236,997 $2,694,984,668 -$18,294,491 $26.62 343
2024 Q1 101,812,894 $2,664,457,707 -$190,051,099 $26.16 321
2023 Q4 262,492 $10,804,170 -$9,042,983 $41.16 2
2023 Q3 100,567,028 $4,575,052,032 -$102,673,402 $45.49 352
2023 Q2 101,622,546 $6,312,435,201 -$236,547,008 $62.12 383
2023 Q1 104,915,642 $6,496,683,441 +$87,009,058 $61.93 360
2022 Q4 103,774,302 $5,335,031,381 -$132,875,774 $51.40 352
2022 Q3 105,918,524 $4,698,799,479 -$64,079,334 $44.37 314
2022 Q2 108,064,082 $4,028,610,725 -$24,162,891 $37.56 292
2022 Q1 106,238,394 $4,279,359,760 -$223,494,113 $40.32 295
2021 Q4 114,761,398 $4,727,140,366 +$54,672,385 $41.29 297
2021 Q3 113,277,002 $4,514,253,570 +$34,530,118 $39.85 299
2021 Q2 99,121,076 $3,963,942,600 +$209,688,261 $39.99 268
2021 Q1 94,019,165 $3,871,004,328 -$4,075,010 $41.25 290
2020 Q4 94,038,014 $3,692,908,501 +$64,066,739 $39.32 255
2020 Q3 109,849,925 $2,809,528,313 -$22,172,002 $25.58 237
2020 Q2 110,829,461 $2,816,636,726 +$55,912,125 $25.44 239
2020 Q1 94,358,805 $2,107,138,083 +$62,047,219 $22.33 238
2019 Q4 107,020,629 $2,637,305,832 +$98,641,100 $24.64 250
2019 Q3 102,933,596 $2,190,444,945 +$43,747,144 $21.28 244
2019 Q2 100,866,641 $2,346,186,097 +$138,630,858 $23.26 235
2019 Q1 96,353,760 $2,547,724,441 +$19,173,440 $26.44 247
2018 Q4 95,784,854 $1,767,090,701 -$5,291,071 $18.45 225
2018 Q3 96,134,473 $2,162,628,078 +$15,052,062 $22.50 207
2018 Q2 95,299,265 $1,534,429,759 -$21,514,192 $16.10 200
2018 Q1 98,061,665 $1,104,982,754 -$2,387,378 $11.25 190
2017 Q4 88,870,821 $1,048,735,759 -$24,402,960 $11.80 190
2017 Q3 90,942,024 $936,884,691 -$4,289,297 $10.30 176
2017 Q2 91,267,278 $1,004,561,616 +$13,257,376 $11.05 182
2017 Q1 90,692,575 $874,846,556 +$137,468,495 $9.65 172
2016 Q4 88,068,688 $845,543,036 +$8,948,210 $9.60 178
2016 Q3 92,767,644 $752,376,441 +$28,374,590 $8.11 155
2016 Q2 89,759,720 $796,884,295 +$40,538,918 $8.88 159
2016 Q1 84,621,053 $665,779,452 +$8,559,809 $7.87 156
2015 Q4 84,640,015 $711,783,297 -$16,757,789 $8.41 165
2015 Q3 86,653,916 $532,859,554 +$11,583,665 $6.15 160
2015 Q2 82,818,634 $752,877,154 +$30,513,745 $9.09 163
2015 Q1 80,345,018 $779,895,823 +$94,577,531 $9.71 160
2014 Q4 71,962,935 $701,199,277 +$2,780,340 $9.75 149
2014 Q3 71,527,420 $633,032,210 +$27,361,245 $8.85 128
2014 Q2 68,559,531 $579,987,358 +$189,845,781 $8.46 125
2014 Q1 46,113,720 $346,200,534 +$7,404,123 $7.51 111