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Dan Jablonsky Appointed CEO of Sierra Space as Leadership Changes Occur Across Defense and Tech Sectors

DEFENSESPACE ECONOMY

Dan Jablonsky will become CEO of Sierra Space on March 2, leading its shift towards defense. Kevin McDonnell will retire as AeroVironment CFO on July 31 after integrating BlueHalo. Diem Salmon joins a chipmaker as chief revenue officer, focusing on government and defense sales.

C5MI promotes Garth Sanginiti to chief growth officer, while Carl Tegeder becomes VP of solution strategy. Trey Whitworth, a retired Navy vice admiral, is appointed president of national security at R4 Federal.

Dan Jablonsky Appointed CEO of Sierra Space as Leadership Changes Occur Across Defense and Tech Sectors
Feb 28, 2026, 11:32 AM

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