About William Targett
William Targett is a secretary/vp/general counsel at Spectrum Effect.
Form D filings also name William Targett as a secretary/general counsel at Opanga Networks.
William Targett first appears on SEC filings in 2010.
Experience
This experience comes from SEC filings. The years are when the filings name William Targett in the role, so the role may have started earlier or lasted longer.
Spectrum Effect, Inc.
Secretary/VP/General Counsel
2015 – 2026 · Bellevue, WA
Software that helps mobile operators identify and reduce wireless network interference.
Key Colleagues at Startups
The people William Targett works with at each company, as listed on that company's latest Form D.
Spectrum Effect, Inc. · Form D, Aug 21, 2026
Charles Immendorf
CEO and director
JL
Joseph Landy
Director
GS
Gary Sledge
Director
Debby Toye
Chief Financial Officer
SJ
Scot Jarvis
Chairman
MD
Mary Dougherty
Treasurer
Shaun McCarthy
President & CRO
BB
Bruce Brda
Director
Opanga Networks, Inc. · Form D, Aug 7, 2019
DG
Dave Gibbons
CEO/Director
PR
Phillip Roth
Director
MD
Mary Dougherty
Treasurer
ES
Edward Salley
Director
CB
Cole Broadman
Director
SA
Scott Anderson
Chairman of the Board/Director
AS
Adrian del los Santos
Director