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IRDM SEC Filing News — Iridium Communications Inc.

Latest SEC filings for Iridium Communications Inc. (IRDM) explained in plain English: insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). Sourced directly from SEC EDGAR.

What you’re looking at: Each item below is parsed from an actual SEC filing. Form 4 = confirmed insider transaction · Form 144 = proposed sale notice · 8-K = material event (earnings, M&A, leadership change, etc.) · 10-Q / 10-K = quarterly / annual report.
Form 4 Insider Selling 2026-04-06

IRDM insider Kapalka Timothy (CAO Iridium Satellite LLC) sold 5,833 shares (~$184.9K)

Kapalka Timothy, listed as CAO Iridium Satellite LLC at Iridium Communications Inc., reported an open-market sale of 5,833 IRDM shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

Filing: Form 4 (Insider Transaction) Insider: Kapalka Timothy (CAO Iridium Satellite LLC) Shares: 5,833 Est. Value: $184.9K
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

Shivanandan Monique S. (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Shivanandan Monique S. (Director) Shares: 85
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

YEANEY JACQUELINE E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: YEANEY JACQUELINE E (Director) Shares: 58
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

Sears Kay (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Sears Kay (Director) Shares: 58
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

Olson Eric T (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Olson Eric T (Director) Shares: 756
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

Krongard A B (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Krongard A B (Director) Shares: 639
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

FITZPATRICK THOMAS (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: FITZPATRICK THOMAS (Director) Shares: 95
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

Canfield Thomas C (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Canfield Thomas C (Director) Shares: 1,257
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

Alterman Louis M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Alterman Louis M (Director) Shares: 74
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

FRAZIER LEON ANTHONY (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: FRAZIER LEON ANTHONY (Director) Shares: 182
Form 4 Tax / Compensation Filing 2026-04-02

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

NIEHAUS ROBERT H (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: NIEHAUS ROBERT H (Director) Shares: 742
Form 4 Tax / Compensation Filing 2026-03-11

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

O'Neill Vincent James (Chief Financial Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: O'Neill Vincent James (Chief Financial Officer) Shares: 2,514
Form 4 Tax / Compensation Filing 2026-03-11

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

McBride Suzanne E. (Director, Chief Operations Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: McBride Suzanne E. (Director, Chief Operations Officer) Shares: 3,067
Form 4 Tax / Compensation Filing 2026-03-11

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

Scheimreif Scott (EVP-Government Programs) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: Scheimreif Scott (EVP-Government Programs) Shares: 2,397
Form 4 Tax / Compensation Filing 2026-03-11

IRDM insider Form 4 filed for equity award, exercise, or tax withholding

DESCH MATTHEW J (Director, Chief Executive Officer) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Filing: Form 4 (Insider Transaction) Insider: DESCH MATTHEW J (Director, Chief Executive Officer) Shares: 8,747
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