Latest Period
Q1 2026
Security Snapshot
Iridium Communications Inc. - Common Stock (IRDM) Institutional Ownership
CUSIP: 46269C102
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
374
Shares (Excl. Options)
89,355,387
Price
$27.74
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- Security type / class
- Equity / Common Stock
- Symbol
- IRDM on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 89,355,387
- Total 13F value
- $2,476,045,881
- Portfolio coverage rank
- 0.01%
- Share change
- -5,206,770
- Value change
- -$81,807,356
- Number of holders
- 374
- Shares outstanding
- 105,059,260
- SEC-reported price per share
- $40.19
- Insider filing price
- $40.19
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- IRDM - Iridium Communications Inc. - Common Stock is tracked under CUSIP 46269C102.
- 374 institutions reported positions in Q1 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 324 to 374 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $1,630,522,674 to $2,476,045,881.
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
Open SEC evidence
Latest holder context comes from 374 institutions filings for Q1 2026.
Security key
46269C102
Latest holder period
Q1 2026
13F holders
374
13D/G owners
6
CIK / CUSIP context first
Open Q1 2026 holders
IRDM full holder history
Iridium Communications Inc. SEC filings
Iridium Communications Inc. company facts
Iridium Communications Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 46269C102:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
6
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 | 9.5% | -4.3% | $242,400,000 | -$10,483,533 | 10,000,000 | -4.1% | Baralonco Limited | 02 Apr 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.8% | $169,323,379 | 6,103,943 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| Silver Heights Capital Management Inc | 5% | $91,264,692 | 5,251,133 | Silver Heights Capital Management Inc | 31 Dec 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 31 Mar 2026, 374 institutional investors reported holding 89,355,387 shares of Iridium Communications Inc. - Common Stock (IRDM). This represents 85% of the company’s total 105,059,260 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
64%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | 13,939,618 | +0.35% | 0.01% | $386,684,998 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.8% | 6,091,749 | 0% | 0.01% | $168,985,117 |
| Silver Heights Capital Management Inc | 4.9% | 5,145,479 | -2% | 55% | $142,735,587 |
| STATE STREET CORP | 4.8% | 5,050,166 | +6.1% | 0% | $140,091,605 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9% | 4,111,325 | 0% | 0% | $114,048,156 |
| AMERICAN CENTURY COMPANIES INC | 3.3% | 3,469,954 | +13% | 0.05% | $96,256,531 |
| Gotham Asset Management, LLC | 3.2% | 3,353,971 | +45% | 0.29% | $93,039,156 |
| AQR CAPITAL MANAGEMENT LLC | 2.8% | 2,917,827 | +509% | 0.04% | $80,940,517 |
| DIMENSIONAL FUND ADVISORS LP | 2.1% | 2,159,061 | +3.2% | 0.01% | $59,884,289 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9% | 2,007,011 | +5.2% | 0% | $55,688,276 |
| Man Group plc | 1.8% | 1,907,044 | +3% | 0.11% | $52,901,400 |
| ARK Investment Management LLC | 1.6% | 1,726,802 | -39% | 0.37% | $47,901,487 |
| MORGAN STANLEY | 1.5% | 1,583,337 | -12% | 0% | $43,921,837 |
| VAN ECK ASSOCIATES CORP | 1.4% | 1,504,628 | +25% | 0.03% | $41,738,000 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.3% | 1,366,005 | +13% | 0.01% | $37,892,979 |
| UBS Group AG | 1.2% | 1,284,561 | +0.89% | 0.01% | $35,633,723 |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 1.2% | 1,282,639 | +34% | 0.03% | $34,387,552 |
| Bank of New York Mellon Corp | 1.1% | 1,150,450 | -2% | 0.01% | $31,913,479 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1% | 1,101,231 | -4.7% | 0.02% | $30,548,148 |
| BARCLAYS PLC | 0.95% | 994,069 | +1.3% | 0.01% | $27,575,474 |
| Invesco Ltd. | 0.94% | 987,926 | -0.63% | 0% | $27,405,067 |
| Select Equity Group, L.P. | 0.9% | 942,519 | +13% | 0.14% | $26,145,477 |
| GOLDMAN SACHS GROUP INC | 0.88% | 928,388 | -60% | 0% | $25,753,496 |
| JUPITER ASSET MANAGEMENT LTD | 0.85% | 893,282 | +11% | 0.13% | $24,779,643 |
| NORTHERN TRUST CORP | 0.82% | 863,494 | -11% | 0% | $23,953,324 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
49
Latest
Q1 2026
Rows shown
1-25 of 49
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 89,355,387 | $2,476,045,881 | -$81,807,356 | $27.74 | 374 |
| 2025 Q4 | 93,784,026 | $1,630,522,674 | -$121,727,138 | $17.38 | 324 |
| 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 |
| 2020 Q1 | 110,180,702 | $2,460,443,024 | +$49,978,101 | $22.33 | 246 |