John Sestan

John Sestan has over 30 years of experience in applied research and development related to mineral processing. Through various senior research and operational management roles at CSIRO, Mr Sestan worked collaboratively with technical groups drawn from many Australian and international companies, as well as with a broad range of researchers from Australian and international universities.
Bio last updated 16 Feb 2019

Article Timeline

Positions - Previous

PositionCompanyYearCompany's current rankWA staff
Non-Executive Director (since 2016)
Marenica Energy
Marenica Energy
2014 - 2017235
Business Development Manager
Rio Tinto
Rio Tinto
1995 - 19992

Directors Interests

CompanyDateTransaction typeNumber of sharesPrice per shareTransaction valueNature of change
Marenica Energy18 Dec 2017Issued120,411$0.14$16,376OtherDirector remuneration: As per announcement on 18/12/2017
Marenica Energy09 Jun 2017Issued158,647$0.13$20,624Placement
Marenica Energy09 Jun 2017Issued179,815$0.13$23,376Placement
Marenica Energy02 Jun 2017Issued127,804$0.13$16,615Rights issue
Marenica Energy02 Jun 2017Issued115,765$0.13$15,049Rights issue

Total Shareholder Return as at 31/01/19

1 year TSR5 year TSR
436thMarenica Energy-29%-26%
625thMEC Resources-52%-26%
687thIronbark Zinc-61%-16%
724thTietto Minerals-65%
734thHot Chili-67%-51%
726 WA (and selected non WA) listed companies ranked by 1 year TSR relative to other companies with similar revenue
Source: Morningstar

Share Transactions

$0 Issued
$9.5m Sold
$1.7m Bought
Total value as at the date of the transaction
Source: Morningstar


235th↓Marenica Energy$151k
242nd↓Hot Chili$134k
243rd↓Ironbark Zinc$127k
245th-Tietto Minerals$123k
246th↑MEC Resources$123k
509 listed resources companies ranked by revenue.
Source: Morningstar

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