Louis M. Alterman

Companies

• Iridium CommunicationsBoard member Dec 4, 2025 to now¹
• EarthLinkChief financial officer Aug 14, 2015 to Feb 27, 2017²
• EarthLinkEVP Strategy, Ops & Transform Oct 30, 2014 to Feb 23, 2015³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Iridium Communications IRDM13,810 shares⁴$610.5K at $44.21Jun 30, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jun 30, 2026Granted 38 shares of Iridium Communications⁴
• Mar 31, 2026Granted 74 shares of Iridium Communications⁵
• Jan 6, 2026Granted 10,822 shares of Iridium Communications⁶
• Dec 31, 2025Granted 2,876 shares of Iridium Communications⁷