Iridium Communications Inc. (IRDM) Insider Trading
Over the last 3 months, IRDM insiders made 0 open-market buys and 2 sales, a net sale of -$185K (SEC Form 4). Over the last 6 months, 264 institutions increased and 216 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
2
Net (3m)
-$184.9K
Insider trades by month Buys Sells
Jan
Feb
Jun
Oct
Nov
Apr
Context3-month price +99.8%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 2, 2026 | Scheimreif Scottofficer: EVP-Government Programs | Tax | 2,205 | $51.78 |
| Jun 2, 2026 | DESCH MATTHEW Jdirector, officer: Chief Executive Officer | Tax | 9,583 | $51.78 |
| Jun 2, 2026 | Morgan Kathleen A.officer: Chief Legal Officer | Tax | 2,052 | $51.78 |
| Jun 2, 2026 | Kapalka Timothyofficer: CAO Iridium Satellite LLC | Grant | 4,175 | — |
| Jun 2, 2026 | McBride Suzanne E.director, officer: Chief Operations Officer | Tax | 3,622 | $51.78 |
| Jun 2, 2026 | Kapalka Timothyofficer: CAO Iridium Satellite LLC | Tax | 692 | $51.78 |
| Jun 2, 2026 | Last Timothy Jamesofficer: EVP, Sales & Marketing | Tax | 1,498 | $51.78 |
| Jun 2, 2026 | O'Neill Vincent Jamesofficer: Chief Financial Officer | Tax | 1,459 | $51.78 |
| Apr 6, 2026 | Kapalka Timothyofficer: CAO Iridium Satellite LLC | Sell | 2,043 | $33.00 |
| Apr 6, 2026 | Kapalka Timothyofficer: CAO Iridium Satellite LLC | Sell | 3,790 | $31.00 |
| Apr 2, 2026 | Olson Eric Tdirector | Grant | 757 | — |
| Apr 2, 2026 | NIEHAUS ROBERT Hdirector | Grant | 743 | — |
| Apr 2, 2026 | Alterman Louis Mdirector | Grant | 74 | — |
| Apr 2, 2026 | Shivanandan Monique S.director | Grant | 86 | — |
| Apr 2, 2026 | FITZPATRICK THOMASdirector | Grant | 95 | — |
| Apr 2, 2026 | Krongard A Bdirector | Grant | 640 | — |
| Apr 2, 2026 | Canfield Thomas Cdirector | Grant | 1,257 | — |
| Apr 2, 2026 | FRAZIER LEON ANTHONYdirector | Grant | 182 | — |
| Apr 2, 2026 | Sears Kaydirector | Grant | 58 | — |
| Apr 2, 2026 | YEANEY JACQUELINE Edirector | Grant | 58 | — |
| Mar 11, 2026 | O'Neill Vincent Jamesofficer: Chief Financial Officer | Tax | 2,514 | $24.01 |
| Mar 11, 2026 | Scheimreif Scottofficer: EVP-Government Programs | Tax | 2,397 | $24.01 |
| Mar 11, 2026 | DESCH MATTHEW Jdirector, officer: Chief Executive Officer | Tax | 8,747 | $24.01 |
| Mar 11, 2026 | Morgan Kathleen A.officer: Chief Legal Officer | Tax | 2,191 | $24.01 |
| Mar 11, 2026 | Kapalka Timothyofficer: CAO Iridium Satellite LLC | Tax | 744 | $24.01 |
| Mar 11, 2026 | Last Timothy Jamesofficer: EVP, Sales & Marketing | Tax | 2,335 | $24.01 |
| Mar 11, 2026 | McBride Suzanne E.director, officer: Chief Operations Officer | Tax | 3,067 | $24.01 |
| Mar 2, 2026 | Kapalka Timothyofficer: CAO IRIDIUM SATELLITE LLC | Tax | 1,871 | $22.49 |
| Mar 2, 2026 | DESCH MATTHEW Jdirector, officer: CHIEF EXECUTIVE OFFICER | Grant | 292,275 | — |
| Mar 2, 2026 | DESCH MATTHEW Jdirector, officer: CHIEF EXECUTIVE OFFICER | Grant | 95,893 | — |
Source: IRDM SEC Form 4 filings, latest Jun 2, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their IRDM positions over the last 6 months (SEC Form 13F).
Increased
264
New positions
146
Reduced
216
Sold out
104
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BLACKROCK, INC. | Increased | 13.9M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 13.9M | Feb 12, 2026 |
| VANGUARD GROUP INC | Increased | 10.2M | Jan 29, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 6.1M | May 8, 2026 |
| SILVER HEIGHTS CAPITAL MANAGEMENT INC | Increased | 5.3M | Feb 13, 2026 |
| SILVER HEIGHTS CAPITAL MANAGEMENT INC | Reduced | 5.1M | May 13, 2026 |
| STATE STREET CORP | Increased | 5.1M | May 15, 2026 |
| STATE STREET CORP | Increased | 4.8M | Feb 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 4.1M | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 3.5M | May 15, 2026 |
| GOTHAM ASSET MANAGEMENT, LLC | Increased | 3.4M | May 15, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 3.1M | Feb 13, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 2.9M | May 15, 2026 |
| ARK INVESTMENT MANAGEMENT LLC | Reduced | 2.9M | Feb 11, 2026 |
| GOLDMAN SACHS GROUP INC | Increased | 2.3M | Mar 25, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.