MECHANICAL TECHNOLOGY INC

10% owner at PLUG POWER INC · on record since Jun 30, 2003
Former 10% Owner at PLUG POWER INC · on record since Aug 19, 2003

Insider trading activity of MECHANICAL TECHNOLOGY INC

Transactions on record: 21; since Jul 28, 2003

Open-market buys: 0

Open-market sells: 21; $4.6M

Companies traded: 1; last filing Aug 19, 2003

Figures computed from official regulatory filings — .

Companies where MECHANICAL TECHNOLOGY INC has traded

PLUG POWER INC21 tx · $4.6M · Aug 19, 2003

Track record of MECHANICAL TECHNOLOGY INC

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of MECHANICAL TECHNOLOGY INC

Co-insiders of MECHANICAL TECHNOLOGY INC

Air Liquide Investissements d'Avenir et de DemonstrationPLUG POWER INC
Anderson Gerald APLUG POWER INC
Angle Colin MPLUG POWER INC
AXANE SAPLUG POWER INC
Batekhin SergeyPLUG POWER INC
BONNEY MARK JPLUG POWER INC
Branton LTDPLUG POWER INC
BUA JEAN APLUG POWER INC
BUCKLER ROBERT JPLUG POWER INC
Bucknam Allen KPLUG POWER INC
Clayburn Development Inc.PLUG POWER INC
Conway Gerard L JRPLUG POWER INC
Corless Adrian JPLUG POWER INC
Crespo Jose LuisPLUG POWER INC
Dimitri AndrewPLUG POWER INC
DRAZAN JEFFREY MPLUG POWER INC
DTE ENERGY COPLUG POWER INC
EARLEY ANTHONY F JRPLUG POWER INC
ELTER JOHN FPLUG POWER INC
FiveT Capital Holdings AGPLUG POWER INC
Fullerton DeanPLUG POWER INC
GARBERDING LARRYPLUG POWER INC
GRANT J DOUGLASPLUG POWER INC
GRAVES GREGORY BPLUG POWER INC
Greenberg AllanPLUG POWER INC
Gross Joel DPLUG POWER INC
Hansen Erik JPLUG POWER INC
Harriman KimPLUG POWER INC

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
PLUG POWER INCListing on record	Aug 19, 2003	Sell	-500,000	5.29 USD	$2.6M	Unusual size	SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-7,821	4.12 USD	$32.2K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-7,500	4.07 USD	$30.5K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-2,865	4.10 USD	$11.7K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-7,500	4.14 USD	$31K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-285,500	4.94 USD	$1.4M	Unusual size	SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.00 USD	$20K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.05 USD	$20.3K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.26 USD	$21.3K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.13 USD	$20.7K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-2,500	4.26 USD	$10.7K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.58 USD	$22.9K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.52 USD	$22.6K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.51 USD	$22.6K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.39 USD	$22K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.56 USD	$22.8K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-5,000	4.52 USD	$22.6K	Unusual size	SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-12,100	4.40 USD	$53.2K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-5,000	4.40 USD	$22K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-8,900	4.49 USD	$40K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-10,314	4.51 USD	$46.5K		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
PLUG POWER INCListing on record	Aug 19, 2003	Sell	-500,000	5.29 USD	$2.6M	Unusual size	SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-7,821	4.12 USD	$32.2K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-7,500	4.07 USD	$30.5K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-2,865	4.10 USD	$11.7K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-7,500	4.14 USD	$31K		SEC
PLUG POWER INCListing on record	Aug 18, 2003	Sell	-285,500	4.94 USD	$1.4M	Unusual size	SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.00 USD	$20K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.05 USD	$20.3K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.26 USD	$21.3K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-5,000	4.13 USD	$20.7K		SEC
PLUG POWER INCListing on record	Aug 11, 2003	Sell	-2,500	4.26 USD	$10.7K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.58 USD	$22.9K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.52 USD	$22.6K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.51 USD	$22.6K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.39 USD	$22K		SEC
PLUG POWER INCListing on record	Aug 4, 2003	Sell	-5,000	4.56 USD	$22.8K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-5,000	4.52 USD	$22.6K	Unusual size	SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-12,100	4.40 USD	$53.2K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-5,000	4.40 USD	$22K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-8,900	4.49 USD	$40K		SEC
PLUG POWER INCListing on record	Jul 28, 2003	Sell	-10,314	4.51 USD	$46.5K		SEC