David Brook

Insider

First SEC filing: May 21, 2019 · Latest: May 21, 2019

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.

Insider at

KOPN buying May 12, 2016

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 22 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

22 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 21, 2019	KOPN	A	10,000	—	—	293,760 Direct	+3.52%	Acquired	(price as of 2026-08-18)
May 9, 2018	KOPN	A	10,000	—	—	283,760 Direct	+3.65%	Acquired	(price as of 2026-08-18)
May 31, 2017	KOPN	A	10,000	—	—	273,760 Direct	+3.79%	Acquired	(price as of 2026-08-18)
May 12, 2016	KOPN	P	50,000	$1.82	$91,000	263,760 Direct	+23.39%	Acquired	184.1% (price as of 2026-08-18)
May 11, 2016	KOPN	A	10,000	—	—	213,760 Direct	+4.91%	Acquired	(price as of 2026-08-18)
May 8, 2015	KOPN	A	10,000	—	—	203,760 Direct	+5.16%	Acquired	(price as of 2026-08-18)
April 29, 2014	KOPN	A	10,000	—	—	193,760 Direct	+5.44%	Acquired	(price as of 2026-08-18)
May 11, 2012	KOPN	A	10,000	—	—	173,760 Direct	+6.11%	Acquired	(price as of 2026-08-18)
April 29, 2010	KOPN	A	10,000	—	—	153,760 Direct	+6.96%	Acquired	(price as of 2026-08-18)
April 28, 2009	KOPN	A	10,000	—	—	143,760 Direct	+7.48%	Acquired	(price as of 2026-08-18)
May 20, 2008	KOPN	A	20,000	—	—	133,760 Direct	+17.58%	Acquired	(price as of 2026-08-18)
July 14, 2006	KOPN	A	10,000	—	—	137,760 Direct	+7.83%	Acquired	(price as of 2026-08-18)
Feb. 6, 2006	KOPN	G	4,198	—	—	127,760 Direct	-3.18%	Disposed	(price as of 2026-08-18)
Feb. 6, 2006	KOPN	G	4,198	—	—	131,958 Direct	-3.08%	Disposed	(price as of 2026-08-18)
Feb. 6, 2006	KOPN	G	4,198	—	—	136,156 Direct	-2.99%	Disposed	(price as of 2026-08-18)
Oct. 17, 2005	KOPN	G	3,384	—	—	147,122 Direct	-2.25%	Disposed	(price as of 2026-08-18)
Oct. 17, 2005	KOPN	G	3,384	—	—	143,738 Direct	-2.30%	Disposed	(price as of 2026-08-18)
Oct. 17, 2005	KOPN	G	3,384	—	—	140,354 Direct	-2.35%	Disposed	(price as of 2026-08-18)
May 19, 2005	KOPN	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-18)
Dec. 8, 2004	KOPN	G	5,000	—	—	150,506 Direct	-3.22%	Disposed	(price as of 2026-08-18)
Dec. 8, 2004	KOPN	G	5,000	—	—	155,506 Direct	-3.12%	Disposed	(price as of 2026-08-18)
Dec. 8, 2004	KOPN	G	5,000	—	—	160,506 Direct	-3.02%	Disposed	(price as of 2026-08-18)
May 19, 2004	KOPN	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-18)
April 30, 2004	KOPN	P	10,000	$4.96	$49,600	165,506 Direct	+6.43%	Acquired	4.2% (price as of 2026-08-18)
April 29, 2004	KOPN	P	20,000	$5.07	$101,400	155,506 Direct	+14.76%	Acquired	2.0% (price as of 2026-08-18)
July 29, 2003	KOPN	S	16,000	$7.39	$118,240	142,551 Direct	-10.09%	Disposed	-30.0% (price as of 2026-08-18)

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 19, 2005	KOPN	Stock Option -- Right to Buy	Common Stock (25,000)	$3.50	May 19, 2015	25,000	Acquired
May 19, 2004	KOPN	Common Stock -- option to purchase	Common Stock (25,000)	$5.00	May 19, 2014	25,000	Acquired

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