John Kostoyannis

John Kostoyannis

Director/Board Member at STEALTHGAS INC.

Net worth: 5 922 $ as of 2024-03-30

58 year
Transportation
Consumer Services

Profile

John G.
Kostoyannis
currently works at StealthGas, Inc., as Independent Director from 2010, Allied Shipbrokinc, Inc., as Managing Director & Director from 2001, Imperial Petroleum, Inc., as Independent Director from 2021, C3is, Inc., as Non-Executive Director, and Hellenic Shipbrokers Association, as Member.
Mr. Kostoyannis received his undergraduate degree in 1988 from London Guildhall University.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
2023-03-27 235 ( 0.03% ) 5 628 $ 2024-03-30
2023-03-27 94 ( 0.00% ) 294 $ 2024-03-30

John Kostoyannis active positions

CompaniesPositionStart
STEALTHGAS INC. Director/Board Member 2010-09-30
IMPERIAL PETROLEUM INC. Director/Board Member 2021-10-31
C3IS INC. Director/Board Member -
Chief Executive Officer 1990-12-31
Hellenic Shipbrokers Association Corporate Officer/Principal -
All active positions of John Kostoyannis

Training of John Kostoyannis

London Guildhall University Undergraduate Degree

Experiences
Positions held

Active

Inactive

Listed companies

Private companies

See the detail of John Kostoyannis's experience

Connections

20

1st degree connections

6

1st degree companies

Male

Female

Members of the board

Executives

See the personal network

Linked companies

Listed companies2
STEALTHGAS INC.

Transportation

C3IS INC.

Transportation

Private companies3

Transportation

Hellenic Shipbrokers Association

Imperial Petroleum, Inc.

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