IRIDIUM COMMUNICATIONS INC IRDM
COM · Common Stock · CUSIP 46269C102 · ISIN US46269C1027
Satellite communications provider
- SectorCommunication
- IndustryCommunications Services, NEC
- HeadquartersMclean, VA
- Founded2001
- Websiteiridium.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($70.2m this quarter). Holder counts are more reliable. Shares outstanding: 118.4m as of 2024-07-16, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $26.62. Options: 14 managers hold calls ($39.1m notional), 12 hold puts ($11.9m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 331 |
| Q4 2022 | 364 |
| Q1 2023 | 372 |
| Q2 2023 | 392 |
| Q3 2023 | 361 |
| Q4 2023 | 347 |
| Q1 2024 | 332 |
| Q2 2024 | 344 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 150 | 160 |
| Q1 2023 | 175 | 176 |
| Q2 2023 | 191 | 166 |
| Q3 2023 | 147 | 229 |
| Q4 2023 | 133 | 198 |
| Q1 2024 | 186 | 164 |
| Q2 2024 | 168 | 170 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $24.7m | $16.9m | 0.68 |
| Q4 2023 | $18.6m | $11.1m | 0.60 |
| Q1 2024 | $36.9m | $7.9m | 0.21 |
| Q2 2024 | $39.1m | $11.9m | 0.30 |
Biggest buyers
| VICTORY CAPITAL MANAGEMENT INC | Added | +1.6m |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Added | +1.2m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | +616.6k |
| BARCLAYS PLC | Added | +546.2k |
| COOPER CREEK PARTNERS MANAGEMENT LLC | Added | +476.7k |
| Gotham Asset Management, LLC | Added | +470.1k |
| Amova Asset Management Americas, Inc. | Added | +401.3k |
| Sumitomo Mitsui Trust Group, Inc. | Added | +385.9k |
| Amundi | Added | +375.0k |
| FMR LLC | Added | +322.3k |
Biggest sellers
| MORGAN STANLEY | Reduced | -2.5m |
| CITADEL ADVISORS LLC | Reduced | -1.3m |
| Clearbridge Investments, LLC | Reduced | -946.9k |
| D. E. Shaw & Co., Inc. | Reduced | -894.9k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -880.0k |
| Select Equity Group, L.P. | Reduced | -826.9k |
| BAMCO INC /NY/ | Reduced | -742.9k |
| JPMORGAN CHASE & CO | Reduced | -678.2k |
| VANGUARD GROUP INC | Reduced | -550.1k |
| Susquehanna Portfolio Strategies, LLC | Sold out | -420.2k |
Biggest calls
| Select Equity Group, L.P. | Unchanged | $17.8m670.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.6m173.8k shares |
| Walleye Capital LLC | Reduced | $4.1m154.0k shares |
| CAPITAL FUND MANAGEMENT S.A. | Added | $3.6m135.6k shares |
| WELLS FARGO & COMPANY/MN | New | $2.9m110.0k shares |
| Squarepoint Ops LLC | New | $1.9m72.5k shares |
| Caption Management, LLC | New | $1.2m45.0k shares |
| CITADEL ADVISORS LLC | Reduced | $846.5k31.8k shares |
| SIMPLEX TRADING, LLC | Reduced | $721.0k27.1k shares |
| Walleye Trading LLC | Reduced | $702.8k26.4k shares |
Biggest puts
| Walleye Capital LLC | Added | $2.6m98.0k shares |
| CITADEL ADVISORS LLC | Added | $1.8m67.3k shares |
| CAPITAL FUND MANAGEMENT S.A. | Added | $1.3m49.5k shares |
| D. E. Shaw & Co., Inc. | Added | $1.3m47.3k shares |
| Caption Management, LLC | New | $1.2m45.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.2m43.3k shares |
| SIMPLEX TRADING, LLC | Added | $945.0k35.5k shares |
| JANE STREET GROUP, LLC | New | $662.8k24.9k shares |
| Squarepoint Ops LLC | New | $599.0k22.5k shares |
| Walleye Trading LLC | Reduced | $242.2k9.1k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +2.9 pts · filed 2026-01-08 | 12.5% |
| Baralonco Ltd 13D · may seek influence -0.1 pts · filed 2026-08-04 | 9.4% |
| AQR CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-08-13 | 6.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.8% |
Fell to 5% or below in the last year: Silver Heights Capital Management Inc (3.1%, 2026-08-12), VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), ARK Investment Management LLC (3.9%, 2025-12-05), BAMCO INC /NY/ (0.7%, 2025-11-14)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 7 | $12.1m | — |
| Q4 2022 | 0 | — | 5 | $8.0m | — |
| Q1 2023 | 0 | — | 11 | $29.3m | — |
| Q2 2023 | 0 | — | 2 | $5.9m | — |
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 1 | $1.0m | 0 | — | — |
| Q1 2024 | 0 | — | 1 | $107.9k | — |
| Q2 2024 | 0 | — | 0 | — | — |
None reported in Q2 2024.
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock Inc. 0.01% of their portfolio | 11.7m $311.7m | Added +34.7k |
| VANGUARD GROUP INC 0.01% of their portfolio | 11.5m $307.2m | Reduced -550.1k |
| BAMCO INC /NY/ 0.85% of their portfolio | 11.2m $297.7m | Reduced -742.9k |
| STATE STREET CORP 0.00% of their portfolio | 4.2m $112.7m | Added +55.6k |
| Silver Heights Capital Management Inc 41.97% of their portfolio | 3.7m $99.4m | Added +253.2k |
| Van Berkom & Associates Inc. 2.77% of their portfolio | 3.5m $92.6m | Added +152.2k |
| ARK Investment Management LLC 0.60% of their portfolio | 2.5m $67.1m | Reduced -52.6k |
| Amova Asset Management Americas, Inc. 0.77% of their portfolio | 2.5m $66.3m | Added +401.3k |
| Sumitomo Mitsui Trust Group, Inc. 0.05% of their portfolio | 2.5m $65.9m | Added +385.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.1m $56.4m | Added +2.3k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 1.9m $51.4m | Reduced -1.2k |
| MORGAN STANLEY 0.00% of their portfolio | 1.8m $47.8m | Reduced -2.5m |
| NORTHERN TRUST CORP 0.01% of their portfolio | 1.6m $42.8m | Added +37.5k |
| VICTORY CAPITAL MANAGEMENT INC 0.04% of their portfolio | 1.6m $42.6m | Added +1.6m |
| ArrowMark Colorado Holdings LLC 0.50% of their portfolio | 1.6m $41.8m | Reduced -70.7k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.5m $41.2m | Reduced -678.2k |
| NORGES BANK 0.01% of their portfolio | 1.5m $40.1m | Added +76.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 1.4m $37.2m | Added +29.7k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 1.4m $37.2m | Added +156.4k |
| Clearbridge Investments, LLC 0.03% of their portfolio | 1.3m $35.2m | Reduced -946.9k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.04% of their portfolio | 1.2m $32.9m | Added +1.2m |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.2m $30.7m | Reduced -21.6k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.12% of their portfolio | 1.1m $28.6m | Reduced -140.5k |
| Capital World Investors 0.00% of their portfolio | 1.0m $26.6m | Unchanged |
| D. E. Shaw & Co., Inc. 0.03% of their portfolio | 919.7k $24.5m | Reduced -894.9k |
| Pacer Advisors, Inc. 0.05% of their portfolio | 768.3k $20.5m | Added +23.8k |
| FMR LLC 0.00% of their portfolio | 744.0k $19.8m | Added +322.3k |
| BARCLAYS PLC 0.01% of their portfolio | 719.0k $19.1m | Added +546.2k |
| PINNACLE ASSOCIATES LTD 0.30% of their portfolio | 711.3k $18.9m | Reduced -3.6k |
| ANCHOR CAPITAL MANAGEMENT COMPANY, LLC 19.63% of their portfolio | 695.2k $18.5m | Added +71.2k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 616.6k $16.4m | New |
| Invesco Ltd. 0.00% of their portfolio | 616.0k $16.4m | Reduced -291.7k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 610.5k $16.3m | Reduced -880.0k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 604.2k $16.1m | Reduced -1.3m |
| Select Equity Group, L.P. 0.06% of their portfolio | 598.9k $15.9m | Reduced -826.9k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 591.0k $15.7m | Reduced -83.3k |
| Gotham Asset Management, LLC 0.18% of their portfolio | 524.2k $14.0m | Added +470.1k |
| COOPER CREEK PARTNERS MANAGEMENT LLC 0.50% of their portfolio | 518.8k $13.8m | Added +476.7k |
| BROWN ADVISORY INC 0.02% of their portfolio | 510.5k $13.6m | Added +602 |
| Amundi 0.00% of their portfolio | 480.0k $12.9m | Added +375.0k |
| Legal & General Group Plc 0.00% of their portfolio | 473.1k $12.6m | Reduced -54.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 444.0k $11.8m | Added +144.9k |
| CANADA PENSION PLAN INVESTMENT BOARD 0.01% of their portfolio | 430.5k $11.5m | Added +60.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 404.4k $10.8m | Reduced -63.7k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.04% of their portfolio | 402.2k $10.7m | Reduced -401.5k |
| Man Group plc 0.03% of their portfolio | 378.3k $10.1m | Added +170.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 372.9k $9.9m | Added +107.4k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 334.4k $8.9m | Added +271.2k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 328.3k $8.7m | Reduced -31.1k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 326.6k $8.7m | Reduced -310.0k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 316.8k $8.4m | Reduced -31.2k |
| Retirement Systems of Alabama 0.03% of their portfolio | 301.3k $8.0m | Reduced -5.7k |
| BLAIR WILLIAM & CO/IL 0.02% of their portfolio | 299.7k $8.0m | Reduced -27.1k |
| Trexquant Investment LP 0.12% of their portfolio | 291.3k $7.8m | Added +129.9k |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 266.4k $7.1m | Added +51.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 261.6k $7.0m | Added +38.8k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 245.9k $6.5m | Reduced -98.4k |
| SG Americas Securities, LLC 0.04% of their portfolio | 237.4k $6.3m | Reduced -74.5k |
| ALGERT GLOBAL LLC 0.21% of their portfolio | 237.1k $6.3m | Added +52.5k |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 226.7k $6.0m | Reduced -36.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 218.7k $5.8m | Reduced -358.0k |
| Swiss National Bank 0.00% of their portfolio | 215.0k $5.7m | Reduced -5.0k |
| Skylands Capital, LLC 0.81% of their portfolio | 213.5k $5.7m | Added +20.4k |
| California Public Employees Retirement System 0.00% of their portfolio | 209.0k $5.6m | Reduced -1.2k |
| Ceredex Value Advisors LLC 0.10% of their portfolio | 208.4k $5.5m | Reduced -82.6k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 207.9k $5.5m | Reduced -24.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 206.5k $5.5m | Added +1.4k |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.04% of their portfolio | 202.6k $5.4m | Reduced -4.5k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 198.4k $5.3m | Added +88.5k |
| Robertson Opportunity Capital, LLC 2.22% of their portfolio | 188.2k $5.0m | New |
| Squarepoint Ops LLC 0.02% of their portfolio | 181.2k $4.8m | Reduced -102.3k |
| Raymond James Financial Services Advisors, Inc. 0.01% of their portfolio | 177.5k $4.7m | Added +15.4k |
| Walleye Capital LLC 0.05% of their portfolio | 174.7k $4.7m | Reduced -84.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 165.4k $4.4m | Reduced -34.7k |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 159.3k $4.2m | Reduced -35.3k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 154.5k $4.1m | Added +15.0k |
| ZACKS INVESTMENT MANAGEMENT 0.05% of their portfolio | 154.1k $4.1m | Added +5.9k |
| Corebridge Financial, Inc. 0.02% of their portfolio | 153.7k $4.1m | First filing |
| UBS Group AG 0.00% of their portfolio | 151.0k $4.0m | Added +35.2k |
| Cubist Systematic Strategies, LLC 0.07% of their portfolio | 143.7k $3.8m | Reduced -113.8k |
| CAPITAL FUND MANAGEMENT S.A. 0.04% of their portfolio | 138.3k $3.7m | Added +24.3k |
| NORDEA INVESTMENT MANAGEMENT AB 0.00% of their portfolio | 135.3k $3.6m | New |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 129.7k $3.5m | Reduced -11.5k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 123.5k $3.3m | Added +82.0k |
| Vident Advisory, LLC 0.09% of their portfolio | 122.0k $3.2m | Reduced -5.7k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 121.2k $3.2m | Reduced -83.4k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 117.6k $3.1m | Reduced -500 |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 108.8k $2.9m | Reduced -5.1k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 108.0k $2.9m | Reduced -158.2k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 107.4k $2.9m | Reduced -5.3k |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna 1.05% of their portfolio | 104.0k $2.8m | Unchanged |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 102.8k $2.7m | Reduced -4.1k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 97.4k $2.6m | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 91.9k $2.4m | Added +23.7k |
| Paralel Advisors LLC 0.11% of their portfolio | 87.3k $2.3m | New |
| Schonfeld Strategic Advisors LLC 0.02% of their portfolio | 87.1k $2.3m | Reduced -183.0k |
| MACQUARIE GROUP LTD 0.00% of their portfolio | 85.6k $2.3m | Reduced -5.4k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 82.0k $2.2m | Added +42.1k |
| HRT FINANCIAL LP 0.01% of their portfolio | 80.1k $2.1m | New |
| Holocene Advisors, LP 0.01% of their portfolio | 79.0k $2.1m | Reduced -84.2k |