WILLIAM C MARTIN Insider Trading $GLF GULFMARK OFFSHORE INC

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General | Insider Transactions | Monthly Overview

Get the latest insider transactions of WILLIAM C MARTIN. WILLIAM C MARTIN is 10% Owner in CASTLE A M & CO ($CAS) and Director in TIDEWATER INC ($TDW) and 10% Owner in MRV COMMUNICATIONS INC ($MRVC) and 10% Owner in RENTECH, INC. ($RTK) and Director in VITESSE SEMICONDUCTOR CORP ($VTSS) and 10% Owner in GULFMARK OFFSHORE INC ($GLF) and Director in GULFMARK OFFSHORE INC ($GLF) and Director in IMMERSION CORP ($IMMR) and 10% Owner in INTERMOLECULAR INC ($IMI).

Over the past year WILLIAM C MARTIN has been an insider in 1 company. The total value of shares held by WILLIAM C MARTIN in this company amounts to $24,599,917.

WILLIAM C MARTIN 10% Owner
A. M. Castle & Co.
10% Owner, Director
GULFMARK OFFSHORE INC
Director
IMMERSION CORP
10% Owner
INTERMOLECULAR INC
10% Owner
MRV COMMUNICATIONS INC
10% Owner
RENTECH, INC.
Director
TIDEWATER INC
Director
VITESSE SEMICONDUCTOR CORP
$ 24599917 The total value of shares held by WILLIAM C MARTIN
Insider Rank

WILLIAM C MARTIN ranks 1,079 out of 350,000 insiders. Go to Insider Ranking to see more.

WILLIAM C MARTIN in GULFMARK OFFSHORE INC

Trading Symbol: GLF
Industry: OIL & GAS FILED MACHINERY & EQUIPMENT [3533]
Position of WILLIAM C MARTIN: 10% Owner, Director
Holdings: 0 shares
Current Value: $0
Latest Transaction: Nov 19 2018
$GLF Market Capitalization: $37.79M
$GLF Previous Close: $1.45

Last 4 weeks trend: STRONG SELL
Last 3 months trend: STRONG SELL

Last 3 Months Overview:
Buy: 5x
Sell: 6x
Shares Bought: 2,207,902
Shares Sold: 7,341,057
Share Difference: -5,133,155
Value Difference: -$29,020,234

Latest Insider Trading Transactions of WILLIAM C MARTIN in GULFMARK OFFSHORE INC

1 Week2 Weeks1 Month3 Months6 Months1 Year2 Years
No. of Purchases0000000
Value of Purchases ($)0000000
No. of Sales0000000
Value of Sales ($)0000000

Sentiment: All, CAS, GLF, IMMR, IMI, MRVC, RTK, TDW, VTSS

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DateTickerCompanyOwnerRelationship Transaction Code Cost ($) Shares Transaction Value ($) Total Shares % Holdings
Nov 19 2018GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorOption ExerciseU100.0058658,6000
Nov 19 2018GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorOption ExerciseU100.0090,0899,008,9000
Nov 19 2018GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorOption ExerciseU100.0059,8115,981,1000
Nov 19 2018GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorSellU0.00540054 to 0 (-100.00 %)
Nov 19 2018GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorSellU0.002,193,981002.2 M to 0 (-100.00 %)
Nov 19 2018GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorSellU0.005,533005.5 K to 0 (-100.00 %)
Dec 26 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorSellS19.008,334158,34608.3 K to 0 (-100.00 %)
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerOption ExerciseJ100.0058658,600586
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerOption ExerciseJ100.00149,90014,990,000149,900
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerOption ExerciseX20.831,400,79629,178,5810
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerOption ExerciseJ20.831,400,79629,178,5811,400,796
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerBuyJ0.00540540 to 54
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerSellJ0.0020,0000020 K to 0 (-100.00 %)
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerBuyJ0.0013,867013,8670 to 13.9 K
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerBuyJ0.00706,78502,193,9811.5 M to 2.2 M (+47.52 %)
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerBuyJ0.0086,40001,487,1961.4 M to 1.5 M (+6.17 %)
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerBuyX20.831,400,79629,178,5811,400,7960 to 1.4 M
Nov 16 2017GLFGULFMARK OFFSHORE ...MARTIN WILLIAM C10% OwnerSellJ0.005,113,155005.1 M to 0 (-100.00 %)
Jan 04 2016GLFGULFMARK OFFSHORE ...MARTIN WILLIAM CDirectorBuyP4.8420,00096,77020,0000 to 20 K

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