Douglas J Grant

Insider

First SEC filing: Jan. 7, 2009 · Latest: Jan. 7, 2009

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.

Insider at

PLUG buying Nov. 18, 2003

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 19 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

19 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Jan. 2, 2009	PLUG	A	6,611	—	—	57,413 Direct	+13.01%	Acquired	(price as of 2026-08-21)
Oct. 2, 2008	PLUG	A	6,611	—	—	50,802 Direct	+14.96%	Acquired	(price as of 2026-08-21)
July 2, 2008	PLUG	A	2,853	—	—	44,191 Direct	+6.90%	Acquired	(price as of 2026-08-21)
May 21, 2008	PLUG	A	12,000	—	—	79,000 Direct	+17.91%	Acquired	(price as of 2026-08-21)
April 3, 2008	PLUG	A	2,135	—	—	41,338 Direct	+5.45%	Acquired	(price as of 2026-08-21)
Jan. 3, 2008	PLUG	A	1,702	—	—	39,203 Direct	+4.54%	Acquired	(price as of 2026-08-21)
Oct. 4, 2007	PLUG	A	2,232	—	—	37,501 Direct	+6.33%	Acquired	(price as of 2026-08-21)
July 2, 2007	PLUG	A	2,162	—	—	35,269 Direct	+6.53%	Acquired	(price as of 2026-08-21)
May 17, 2007	PLUG	A	12,000	—	—	67,000 Direct	+21.82%	Acquired	(price as of 2026-08-21)
April 3, 2007	PLUG	A	2,176	—	—	33,107 Direct	+7.04%	Acquired	(price as of 2026-08-21)
Jan. 8, 2007	PLUG	A	1,833	—	—	30,931 Direct	+6.30%	Acquired	(price as of 2026-08-21)
Oct. 2, 2006	PLUG	A	3,481	—	—	29,098 Direct	+13.59%	Acquired	(price as of 2026-08-21)
June 28, 2006	PLUG	A	10,000	$4.64	$46,400	55,000 Direct	+22.22%	Acquired	-95.1% (price as of 2026-08-21)
June 1, 2005	PLUG	A	10,000	$6.22	$62,200	45,000 Direct	+28.57%	Acquired	-96.4% (price as of 2026-08-21)
June 1, 2005	PLUG	A	7,235	$6.22	$45,002	25,617 Direct	+39.36%	Acquired	-96.4% (price as of 2026-08-21)
May 20, 2004	PLUG	A	10,000	—	—	35,000 Direct	+40.00%	Acquired	(price as of 2026-08-21)
May 20, 2004	PLUG	A	2,000	$7.50	$15,000	18,382 Direct	+12.21%	Acquired	-97.0% (price as of 2026-08-21)
Dec. 19, 2003	PLUG	A	3,882	—	—	16,382 Direct	+31.06%	Acquired	(price as of 2026-08-21)
Nov. 18, 2003	PLUG	P	10,000	$5.27	$52,700	12,500 Direct	+400.00%	Acquired	-95.7% (price as of 2026-08-21)
Oct. 9, 2002	PLUG	A	15,000	—	—	— Direct	—	Disposed	(price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 21, 2008	PLUG	Option to Purchase Common Stock	Common Stock (12,000)	$3.21	May 21, 2018	12,000	Acquired
May 17, 2007	PLUG	Option to Purchase Common Stock	Common Stock (12,000)	$2.98	May 17, 2017	12,000	Acquired
June 28, 2006	PLUG	Option to Purchase Common Stock	Common Stock (10,000)	$4.64	June 28, 2016	10,000	Acquired
June 1, 2005	PLUG	Option to Purchase Common Stock	Common Stock (10,000)	$6.22	June 1, 2015	10,000	Acquired
May 20, 2004	PLUG	Option to Purchase Common Stock	Common Stock (10,000)	$7.50	May 20, 2014	10,000	Acquired
Oct. 9, 2002	PLUG	Option to Purchase Common Stock	Common Stock (15,000)	$3.47	Oct. 9, 2012	15,000	Disposed

Exercise/conversion price is blank when not applicable (e.g. RSUs).