Roberto Bittner

Corporate Officer/Principal at ASTRA EXPLORATION INC.

Net worth: 2 M $ as of 30/05/2026

Non-Energy Minerals

Finance

Profile

Roberto Alarcon Bittner currently works at Astra Exploration, Inc., as Vice President & Country Manager-Chile.
Mr. Bittner also formerly worked at Yamana Gold, Inc., as VP-South America Legal & Land, Country Manager from 2014 to 2019 and Homestake Mining Company of California, as Vice President-Legal & Land from 1991 to 2001.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
ASTRA EXPLORATION INC 2.07%	15/04/2025	2,839,985 ( 2.07% )	2 M $	30/05/2026

Roberto Bittner active positions

Companies	Position	Start
ASTRA EXPLORATION INC.	Corporate Officer/Principal	-

All active positions of Roberto Bittner

Former positions of Roberto Bittner

Companies	Position	End
YAMANA GOLD INC.	General Counsel	31/12/2018
Homestake Mining Company of California Homestake Mining Company of California Precious MetalsNon-Energy Minerals Explores and processes gold	General Counsel	31/01/2001

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Experiences
Positions held

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Private companies

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Connections

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Executives

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Linked companies

Private companies	3
Homestake Mining Company of California Homestake Mining Company of California Precious MetalsNon-Energy Minerals Explores and processes gold	Non-Energy Minerals
Yamana Gold, Inc. Yamana Gold, Inc. Precious MetalsNon-Energy Minerals Engages in gold mining	Non-Energy Minerals
Astra Exploration, Inc. Astra Exploration, Inc. Financial ConglomeratesFinance Provides mineral exploration services	Finance