As of September 29, 2026, Iridium Communications's top three insider holders are Matthew J Desch (Chief Executive Officer, 1.44Mn shares), A B Krongard (Director, 366.54K shares), Robert H Niehaus (Senior Vice President, 266.91K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Matthew J Desch | Chief Executive Officer | 1,441,434 | 0 | 1,441,434 | 33.9% | 02 Sep, 2026 |
| 2 | A B Krongard | Director | 366,542 | 0 | 366,542 | 8.6% | 02 Apr, 2026 |
| 3 | Robert H Niehaus | Senior Vice President | 266,910 | 0 | 266,910 | 6.3% | 19 Aug, 2026 |
| 4 | Suzanne E. Mcbride | Chief Operations Officer | 260,991 | 0 | 260,991 | 6.1% | 02 Sep, 2026 |
| 5 | Scott Scheimreif | Evp Government Programs | 257,552 | 0 | 257,552 | 6.1% | 02 Sep, 2026 |
| 6 | Thomas C Canfield | Director | 234,294 | 0 | 234,294 | 5.5% | 02 Jul, 2026 |
| 7 | Parker William Rush | Director | 168,812 | 0 | 168,812 | 4.0% | 03 Jan, 2024 |
| 8 | Eric T Olson | Director | 149,680 | 0 | 149,680 | 3.5% | 19 Aug, 2026 |
| 9 | Thomas D Hickey | Chief Legal Officer, Secretary | 146,286 | 0 | 146,286 | 3.4% | 03 Dec, 2021 |
| 10 | Vincent James O'Neill | Chief Financial Officer | 126,944 | 0 | 126,944 | 3.0% | 02 Sep, 2026 |
| 11 | Kathleen A. Morgan | Chief Legal Officer | 122,818 | 0 | 122,818 | 2.9% | 02 Sep, 2026 |
| 12 | Steven B Pfeiffer | Director | 111,487 | 0 | 111,487 | 2.6% | 09 Mar, 2022 |
| 13 | Bryan J. Hartin | Evp Sales And Marketing | 94,928 | 0 | 94,928 | 2.2% | 23 Dec, 2024 |
| 14 | Timothy James Last | Evp, Sales Marketing | 84,130 | 0 | 84,130 | 2.0% | 16 Sep, 2026 |
| 15 | Jane L. Harman | Director | 60,818 | 0 | 60,818 | 1.4% | 02 Apr, 2024 |
| 16 | Barry West | Director | 52,547 | 0 | 52,547 | 1.2% | 03 Apr, 2023 |
| 17 | Henrik O. Schliemann | Director | 51,285 | 0 | 51,285 | 1.2% | 03 Apr, 2023 |
| 18 | Leon Anthony Frazier | Director | 46,504 | 0 | 46,504 | 1.1% | 02 Jul, 2026 |
| 19 | Thomas Fitzpatrick | Chief Financial Officer | 43,260 | 0 | 43,260 | 1.0% | 19 Aug, 2026 |
| 20 | Donald Lee Thoma | Evp, Aireon | 41,949 | 0 | 41,949 | 1.0% | 13 Jul, 2026 |
| 21 | Timothy Kapalka | Cao Iridium Satellite Llc | 35,038 | 0 | 35,038 | 0.8% | 02 Sep, 2026 |
| 22 | Kay Sears | Director | 30,114 | 0 | 30,114 | 0.7% | 02 Jul, 2026 |
| 23 | Jacqueline E Yeaney | Director | 25,340 | 0 | 25,340 | 0.6% | 02 Jul, 2026 |
| 24 | Monique S. Shivanandan | Director | 15,939 | 0 | 15,939 | 0.4% | 02 Jul, 2026 |
| 25 | Louis M Alterman | Director | 13,810 | 0 | 13,810 | 0.3% | 02 Jul, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 03 Sep, 2026 | Timothy James Last | Evp, Sales Marketing | Disposed S | 2,013 | $47.36 | $95.34K | 89,899 | Direct |
| 01 Sep, 2026 | Scott Scheimreif | Evp Government Programs | Disposed F | 2,207 | $46.98 | $103.68K | 257,552 | Direct |
| 01 Sep, 2026 | Vincent James O'Neill | Chief Financial Officer | Disposed F | 1,461 | $46.98 | $68.64K | 126,944 | Direct |
| 01 Sep, 2026 | Timothy James Last | Evp, Sales Marketing | Disposed F | 1,501 | $46.98 | $70.52K | 91,912 | Direct |
| 01 Sep, 2026 | Matthew J Desch | Chief Executive Officer | Disposed F | 9,583 | $46.98 | $450.21K | 1,441,434 | Direct |
| 01 Sep, 2026 | Kathleen A. Morgan | Chief Legal Officer | Disposed F | 2,053 | $46.98 | $96.45K | 122,818 | Direct |
| 01 Sep, 2026 | Suzanne E. Mcbride | Chief Operations Officer | Disposed F | 3,623 | $46.98 | $170.21K | 260,991 | Direct |
| 01 Sep, 2026 | Timothy Kapalka | Cao Iridium Satellite Llc | Disposed F | 693 | $46.98 | $32.56K | 35,038 | Direct |
| 20 Aug, 2026 | Suzanne E. Mcbride | Chief Operations Officer | Disposed G | 17,403 | $0.00 | $0 | 264,614 | Direct |
| 17 Aug, 2026 | Suzanne E. Mcbride | Chief Operations Officer | Disposed S | 85,454 | $50.28 | $4.30Mn | 282,017 | Direct |
| 17 Aug, 2026 | Robert H Niehaus | Director | Disposed G | 50,000 | $0.00 | $0 | 266,910 | Direct |
| 17 Aug, 2026 | Timothy Kapalka | Cao Iridium Satellite Llc | Disposed S | 13,473 | $50.51 | $680.52K | 35,731 | Direct |
| 17 Aug, 2026 | Eric T Olson | Director | Disposed S | 8,000 | $50.61 | $404.88K | 149,680 | Direct |
| 17 Aug, 2026 | Kathleen A. Morgan | Chief Legal Officer | Disposed S | 32,648 | $50.34 | $1.64Mn | 125,415 | Direct |
| 17 Aug, 2026 | Thomas Fitzpatrick | Director | Disposed S | 209,233 | $50.22 | $10.51Mn | 58,306 | Direct |
| 17 Aug, 2026 | Timothy James Last | Evp, Sales Marketing | Disposed S | 19,021 | $50.33 | $957.33K | 93,913 | Direct |
| 17 Aug, 2026 | Kathleen A. Morgan | Chief Legal Officer | Disposed S | 544 | $50.85 | $27.66K | 124,871 | Direct |
| 17 Aug, 2026 | Timothy James Last | Evp, Sales Marketing | Disposed S | 500 | $50.88 | $25.44K | 93,413 | Direct |
| 18 Aug, 2026 | Thomas Fitzpatrick | Director | Disposed S | 15,046 | $49.20 | $740.26K | 43,260 | Direct |
| 10 Jul, 2026 | Donald Lee Thoma | Evp, Aireon | Acquired A | 41,949 | $0.00 | $0 | 41,949 | Direct |