Digital Turbine taps Michael Akkerman, former Uber general manager-mobility advertising, as chief business officer ... Seagate Technology hires Jim Lee, ex-Maxar Technologies, as senior vice president-chief legal officer and corporate secretary ... LG Ad Solutions, connected TV and cross-screen advertising platform, promotes Senior Vice President-Engineering Dave Rudnick to chief technology officer ... Bridge Growth Partners, tech investment firm, taps former Siris Capital Group principal Prosper Vignone, also former IBM vice president-corporate development and business development, as a senior adviser ... Cybersecurity company Sevco Security names Michael Persechini, ex-Interpres Security, senior vice president-global sales ... ICANN selects London Internet Exchange CEO Kurt Lindqvist as president-CEO, effective December; Sally Costerton continues until then as interim president-CEO … Crest Hill Advisors taps Ken Turner, former DOD deputy director-spectrum, as senior adviser … Quadra Partners announces Brian Regan, ex- Aura Network Systems and former National Spectrum Consortium executive committee member, as firm’s first managing director.