Iridium Communications Inc.
IRDM- Exchange
- Nasdaq
- Industry
- Communications Services, NEC
- SEC CIK
- 0001418819
In the last 90 days, Iridium Communications Inc. insiders filed 0 open-market purchases and 8 sales; 491 institutions reported holding it in 13F filings for Q2 2026, worth $5.01B in total; ARK Invest is the only superinvestor holding it.
Holders of 5% or more of IRDM
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Iridium Communications Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 12.50%13.1M shares | +2.90 ppfrom 9.60% | Feb 5, 20253 filings | Jan 8, 2026 | SEC |
| Baralonco Ltd | 13D/A | 9.44%10.0M shares | −0.09 ppfrom 9.53% | Aug 26, 20217 filings | Aug 4, 2026 | SEC |
| Vanguard Portfolio Management LLC | 13G | 5.81%6.10M shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
46 Schedule 13D and 13G filings on Iridium Communications Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 12, 202611:34 AM ET | AQR Capital Management LLCand 1 other | 13G/A | 1.39%1.48M shares | −5.21 ppfrom 6.60%Below 5% | Sep 30, 2026 | SEC |
| Aug 13, 20268:58 AM ET | AQR Capital Management LLCand 1 other | 13G | 6.60%6.98M shares | New | Jun 30, 2026 | SEC |
| Aug 12, 20263:00 PM ET | Silver Heights Capital Management Inc | 13G/A | 3.10%3.27M shares | −1.90 ppfrom 5.00%Below 5% | Jun 30, 2026 | SEC |
| Aug 4, 20269:09 PM ET | Baralonco Ltdand 2 others | 13D/A | 9.44%10.0M shares | −0.09 ppfrom 9.53% | Jul 31, 2026 | SEC |
| Apr 29, 20261:46 PM ET | Vanguard Portfolio Management LLC | 13G | 5.81%6.10M shares | New | Mar 31, 2026 | SEC |
| Apr 2, 20263:48 PM ET | Baralonco Ltdand 2 others | 13D/A | 9.53%10.0M shares | −0.43 ppfrom 9.96% | Apr 2, 2026 | SEC |
| Mar 26, 20262:48 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −10.25 ppfrom 10.25%Below 5% | Mar 13, 2026 | SEC |
| Mar 5, 20261:24 PM ET | Vanguard Group Inc | 13G/A | 10.25%10.8M shares | – | Feb 27, 2026 | SEC |
| Feb 13, 20263:54 PM ET | Silver Heights Capital Management Inc | 13G/A | 5.00%5.25M shares | 0.00 ppfrom 5.00% | Dec 31, 2025 | SEC |
| Feb 13, 202612:08 PM ET | Silver Heights Capital Management Inc | 13G | 5.00%5.25M shares | New | Dec 31, 2025 | SEC |
| Jan 8, 20261:28 PM ET | BlackRock, Inc. | 13G/A | 12.50%13.1M shares | +2.90 ppfrom 9.60% | Dec 31, 2025 | SEC |
| Dec 5, 202510:57 AM ET | ARK Investment Management LLCand 1 otherSuperinvestorARK Invest | 13G/A | 3.93%4.12M shares | −2.19 ppfrom 6.12%Below 5% | Nov 30, 2025 | SEC |
| Nov 26, 20255:02 PM ET | Baralonco Ltdand 2 others | 13D/A | 9.96%10.4M shares | +0.36 ppfrom 9.60% | Nov 24, 2025 | SEC |
| Nov 14, 202511:24 AM ET | Bamco Incand 4 others | 13G/A | 0.65%683.0K shares | −7.10 ppfrom 7.75%Below 5% | Sep 30, 2025 | SEC |
| Nov 4, 20254:53 PM ET | ARK Investment Management LLCand 1 otherSuperinvestorARK Invest | 13G/A | 6.12%6.49M shares | – | Sep 30, 2025 | SEC |
| Aug 14, 202511:35 AM ET | Bamco Incand 4 others | 13G/A | 7.75%8.38M shares | −1.64 ppfrom 9.39% | Jun 30, 2025 | SEC |
| Jun 26, 20256:05 PM ET | Baralonco Ltdand 2 others | 13D/A | 9.60%10.4M shares | – | Jun 24, 2025 | SEC |
| Apr 23, 20258:39 PM ET | BlackRock, Inc. | 13G/A | 9.60%10.5M shares | −1.60 ppfrom 11.20% | Mar 31, 2025 | SEC |
| Feb 5, 20251:23 PM ET | BlackRock, Inc. | 13G/A | 11.20%12.7M shares | – | Dec 31, 2024 | SEC |
| Nov 14, 202410:09 AM ET | Bamco Incand 4 others | 13G/A | 9.39%11.1M shares | – | Sep 30, 2024 | SEC |
| Nov 13, 2024 | Capital International Investors | 13G/AOld format | – | – | – | SEC |
| Jun 7, 20241:30 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2024 | Bamco Inc | 13G/AOld format | – | – | – | SEC |
| Feb 13, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2024 | Capital International Investors | 13G/AOld format | – | – | – | SEC |
| Jan 24, 20245:23 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Bamco Inc | 13G/AOld format | – | – | – | SEC |
| Feb 13, 2023 | Capital International Investors | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2023 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 26, 20238:49 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 20, 20235:17 PM ET | BlackRock Inc. | 13GOld format | – | – | – | SEC |
| Sep 9, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Mar 11, 2022 | Baralonco Ltd | 13D/AOld format | – | – | – | SEC |
| Feb 11, 2022 | Capital International Investors | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2022 | ARK Investment Management LLCSuperinvestorARK Invest | 13G/AOld format | – | – | – | SEC |
| Jan 27, 20225:13 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 26, 20229:16 AM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 7, 2022 | Bamco Inc | 13G/AOld format | – | – | – | SEC |
| Nov 26, 2021 | Baralonco Ltd | 13D/AOld format | – | – | – | SEC |
| Aug 26, 2021 | Baralonco Ltd | 13D/AOld format | – | – | – | SEC |
| Jul 9, 2021 | ARK Investment Management LLCSuperinvestorARK Invest | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Capital International Investors | 13GOld format | – | New | – | SEC |
| Feb 16, 2021 | ARK Investment Management LLCSuperinvestorARK Invest | 13GOld format | – | New | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Jan 26, 20212:22 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
25 notices from officers, directors and other affiliates planning to sell Iridium Communications Inc. shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Oct 26, 20264:21 PM ET | Matthew DeschOfficer | 10.7K | $473.4K | Oct 26, 2026 | J.P. Morgan Securities LLC | SEC |
| Sep 15, 20265:31 PM ET | Timothy J LastOfficer | 5.77K | $267.4K | Sep 15, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Sep 3, 20265:01 PM ET | Timothy J LastOfficer | 2.01K | $95.3K | Sep 3, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 18, 20264:03 PM ET | Fitzpatrick ThomasDirector | 15.0K | $745.9K | Aug 18, 2026 | The Charles Schwab Corporation | SEC |
| Aug 17, 20266:00 PM ET | Suzanne McBrideOfficer · Director | 85.5K | $4.30M | Aug 17, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 17, 20265:24 PM ET | Eric T OlsonDirector | 8.00K | $404.9K | Aug 17, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 17, 20265:12 PM ET | Thomas FitzpatrickDirector | 209.2K | $10.5M | Aug 17, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 17, 20264:26 PM ET | Timothy J LastOfficer | 19.5K | $982.8K | Aug 17, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 17, 20264:18 PM ET | Kathleen MorganOfficer | 33.2K | $1.67M | Aug 17, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Oct 31, 20254:07 PM ET | Thomas FitzpatrickDirector | 20.8K | $375.1K | Oct 31, 2025 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Oct 28, 20256:14 PM ET | Thomas FitzpatrickDirector | 6.80K | $122.4K | Oct 28, 2025 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Oct 27, 20256:10 PM ET | Thomas FitzpatrickDirector | 3.33K | $60.0K | Oct 27, 2025 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Feb 18, 20255:04 PM ET | Olson Eric TDirector | 4.96K | $168.6K | Feb 18, 2025 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| Feb 18, 20254:58 PM ET | Morgan Kathleen A.Officer | 15.0K | $503.9K | Feb 18, 2025 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| Jan 10, 20254:15 PM ET | Thomas FitzpatrickDirector | 12.5K | $356.6K | Jan 10, 202510b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Nov 4, 20243:37 PM ET | McBride Suzanne E.INSIDER | 4.42K | $129.6K | Nov 4, 2024 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| Oct 23, 20244:36 PM ET | Niehaus Robert HDirector | 38.4K | $1.11M | Oct 23, 2024 | MORGAN STANLEY SMITH BARNEY LLC EXECUTIVE SERVICES | SEC |
| Mar 7, 202410:28 AM ET | Harman Jane L.Director | 3.80K | $107.9K | Mar 6, 2024 | Morgan Stanley Smith Barney LLC Executive Services | SEC |
| Mar 5, 20245:27 PM ET | Rush Parker WilliamDirector | 5.57K | $162.4K | Mar 5, 2024 | MORGAN STANLEY SMITH BARNEY LLC EXECUTIVE SERVICES | SEC |
| Feb 23, 20246:21 PM ET | Rush Parker WilliamDirector | 4.00K | $114.4K | Feb 23, 2024 | MORGAN STANLEY SMITH BARNEY LLC EXECUTIVE SERVICES | SEC |
| Jun 7, 20234:58 PM ET | Matthew J. DeschAffiliate | 25.0K | $1.60M | Jun 7, 202310b5-1 | J.P. Morgan Securities LLC | SEC |
| May 11, 20236:31 PM ET | Schliemann Henrik O.Director | 1.90K | $118.6K | May 11, 2023 | ETRADE FINANCIAL CORPORATION | SEC |
| May 5, 20235:18 PM ET | West BarryDirector | 1.88K | $120.5K | May 5, 2023 | ETRADE FINANCIAL CORPORATION | SEC |
| May 1, 20232:36 PM ET | Niehaus Robert HDirector | 55.8K | $3.54M | May 1, 2023 | ETRADE FINANCIAL CORPORATION | SEC |
| Apr 25, 20232:17 PM ET | Hartin Bryan J.Officer | 36.0K | $2.37M | Apr 25, 2023 | ETRADE FINANCIAL CORPORATION | SEC |