Gregory A Silvestri

Insider

First SEC filing: May 1, 2008 · Latest: May 1, 2008

On this page

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.
Initial holdings The stakes this person held when they first started reporting.
Compensation Executive pay disclosed in company proxy statements.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 20 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

20 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
April 28, 2010	APOG	F	1,376	$13.58	$18,686	39,590 Direct	-3.36%	Disposed	211.2% (price as of 2026-08-21)
April 27, 2010	APOG	A	19,166	—	—	19,166 Direct	—	Acquired	(price as of 2026-08-21)
April 27, 2010	APOG	A	13,800	—	—	40,966 Direct	+50.80%	Acquired	(price as of 2026-08-21)
Aug. 13, 2009	APOG	F	1,151	$13.96	$16,068	27,166 Direct	-4.06%	Disposed	202.7% (price as of 2026-08-21)
April 28, 2009	APOG	A	18,761	—	—	18,761 Direct	—	Acquired	(price as of 2026-08-21)
April 28, 2009	APOG	A	12,632	—	—	28,317 Direct	+80.54%	Acquired	(price as of 2026-08-21)
April 29, 2008	APOG	A	21,226	—	—	21,226 Direct	—	Acquired	(price as of 2026-08-21)
April 29, 2008	APOG	A	12,165	—	—	15,785 Direct	+336.05%	Acquired	(price as of 2026-08-21)
Aug. 13, 2007	APOG	A	3,520	—	—	3,520 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 1, 2007	PLUG	S	2,800	$3.66	$10,248	51,599 Direct	-5.15%	Disposed	-93.8% (price as of 2026-08-21)
July 20, 2006	PLUG	A	45,000	$4.15	$186,750	340,000 Direct	+15.25%	Acquired	-94.5% (price as of 2026-08-21)
July 20, 2006	PLUG	A	9,000	$4.15	$37,350	54,399 Direct	+19.82%	Acquired	-94.5% (price as of 2026-08-21)
Feb. 1, 2006	PLUG	A	40,000	$5.58	$223,200	295,000 Direct	+15.69%	Acquired	-95.9% (price as of 2026-08-21)
Feb. 1, 2006	PLUG	A	21,000	$5.58	$117,180	45,399 Direct	+86.07%	Acquired	-95.9% (price as of 2026-08-21)
Feb. 1, 2006	PLUG	A	1,815	$5.58	$10,128	24,399 Direct	+8.04%	Acquired	-95.9% (price as of 2026-08-21)
Sept. 21, 2005	PLUG	F	14,451	$6.58	$95,088	22,584 Direct	-39.02%	Disposed	-96.6% (price as of 2026-08-21)
March 9, 2005	PLUG	D	1,118	$7.49	$8,374	37,035 Direct	-2.93%	Disposed	-97.0% (price as of 2026-08-21)
Jan. 28, 2005	PLUG	A	25,000	$5.39	$134,750	255,000 Direct	+10.87%	Acquired	-95.8% (price as of 2026-08-21)
Aug. 17, 2004	PLUG	D	2,370	$5.00	$11,850	38,153 Direct	-5.85%	Disposed	-95.5% (price as of 2026-08-21)
Feb. 10, 2004	PLUG	A	25,000	$9.20	$230,000	230,000 Direct	+12.20%	Acquired	-97.5% (price as of 2026-08-21)
Feb. 10, 2004	PLUG	A	6,712	—	—	40,523 Direct	+19.85%	Acquired	(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
April 27, 2010	APOG	Performance Share Units	Common Stock (19,166)	—	April 27, 2013	19,166	Acquired
April 28, 2009	APOG	Performance Share Units	Common Stock (18,761)	—	May 2, 2012	18,761	Acquired
April 29, 2008	APOG	Stock Appreciation Rights	Common Stock (21,226)	$21.59	April 29, 2018	21,226	Acquired
July 20, 2006	PLUG	Stock Options	Common Stock (45,000)	$4.15	July 20, 2016	45,000	Acquired
Feb. 1, 2006	PLUG	Stock Options	Common Stock (40,000)	$5.58	Feb. 8, 2016	40,000	Acquired
Jan. 28, 2005	PLUG	Employee Stock Option	Common Stock (25,000)	$5.39	Jan. 28, 2015	25,000	Acquired
Feb. 10, 2004	PLUG	Employee Stock Option	Common Stock (25,000)	$9.20	Feb. 10, 2014	25,000	Acquired

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

Initial ownership (Form 3) 2 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
May 1, 2008	APOG	Common Stock	—	Direct
March 7, 2008	APOG	Common Stock	—	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

PLUG

President(9)

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2006	$283,357	$75,000	—	—	—	—	$450	$521,759
2005	$259,002,259,002,249,536	$360,003,600,042,650	—	—	—	—	—	—
2004	$259,002,249,552,235,008	$360,004,265,048,500	—	—	—	—	—	—

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.