Douglas G Watson

Insider

First SEC filing: July 14, 2010 · Latest: July 14, 2010

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.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 29 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

29 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Nov. 13, 2016	OSUR	D	8,847	—	—	188,032 Direct	-4.49%	Disposed	(price as of 2026-08-20)
May 17, 2016	OSUR	A	17,550	—	—	196,879 Direct	+9.79%	Acquired	(price as of 2026-08-20)
May 12, 2015	OSUR	A	22,325	—	—	179,329 Direct	+14.22%	Acquired	(price as of 2026-08-20)
Jan. 6, 2015	OSUR	M	30,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 6, 2015	OSUR	F	17,015	$9.87	$167,938	157,004 Direct	-9.78%	Disposed	-62.8% (price as of 2026-08-20)
Jan. 6, 2015	OSUR	M	30,000	$5.60	$168,000	174,019 Direct	+20.83%	Acquired	-34.4% (price as of 2026-08-20)
July 7, 2014	DCTH	A	9,615	—	—	136,664 Direct	+7.57%	Acquired	(price as of 2026-08-20)
May 22, 2014	OSUR	A	19,480	—	—	144,019 Direct	+15.64%	Acquired	(price as of 2026-08-20)
June 5, 2013	DCTH	A	33,000	—	—	127,049 Direct	+35.09%	Acquired	(price as of 2026-08-20)
May 14, 2013	OSUR	A	26,258	—	—	124,539 Direct	+26.72%	Acquired	(price as of 2026-08-20)
Nov. 20, 2012	OSUR	M	40,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 20, 2012	OSUR	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 20, 2012	OSUR	S	60,000	$7.55	$453,000	98,281 Direct	-37.91%	Disposed	-51.3% (price as of 2026-08-20)
Nov. 20, 2012	OSUR	M	40,000	$6.98	$279,200	158,281 Direct	+33.82%	Acquired	-47.3% (price as of 2026-08-20)
Nov. 20, 2012	OSUR	M	20,000	$6.96	$139,200	118,281 Direct	+20.35%	Acquired	-47.2% (price as of 2026-08-20)
June 15, 2012	DCTH	A	32,680	—	—	94,049 Direct	+53.25%	Acquired	(price as of 2026-08-20)
June 1, 2012	DCTH	P	50,000	$1.51	$75,500	61,369 Direct	+439.79%	Acquired	-98.4% (price as of 2026-08-20)
Feb. 1, 2012	OSUR	A	13,281	—	—	98,281 Direct	+15.62%	Acquired	(price as of 2026-08-20)
Nov. 16, 2011	OSUR	S	1,342	$8.27	$11,098	85,000 Direct	-1.55%	Disposed	-55.6% (price as of 2026-08-20)
Nov. 15, 2011	OSUR	S	38,658	$8.38	$323,954	86,342 Direct	-30.93%	Disposed	-56.1% (price as of 2026-08-20)
Nov. 8, 2011	OSUR	M	40,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Nov. 8, 2011	OSUR	M	40,000	$6.87	$274,800	125,000 Direct	+47.06%	Acquired	-46.5% (price as of 2026-08-20)
May 26, 2011	DCTH	A	8,347	—	—	11,369 Direct	+276.21%	Acquired	(price as of 2026-08-20)
Feb. 1, 2011	OSUR	A	25,000	—	—	85,000 Direct	+41.67%	Acquired	(price as of 2026-08-20)
Dec. 1, 2010	DCTH	A	3,022	—	—	3,022 Direct	—	Acquired	(price as of 2026-08-20)
July 12, 2010	DCTH	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 25, 2010	OSUR	A	25,000	—	—	60,000 Direct	+71.43%	Acquired	(price as of 2026-08-20)
Jan. 23, 2009	OSUR	A	25,000	—	—	35,000 Direct	+250.00%	Acquired	(price as of 2026-08-20)
Aug. 8, 2008	OSUR	P	10,000	$4.08	$40,800	10,000 Direct	—	Acquired	-9.9% (price as of 2026-08-20)
Feb. 1, 2008	OSUR	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 1, 2007	OSUR	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 23, 2006	OSUR	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 26, 2005	OSUR	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 14, 2004	OSUR	A	30,000	—	—	30,000 Direct	—	Acquired	(price as of 2026-08-20)

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
Jan. 6, 2015	OSUR	Non-qualified stock option	Common stock (30,000)	$5.60	Jan. 26, 2015	30,000	Disposed
Nov. 20, 2012	OSUR	Nonqualified stock option	Common stock (40,000)	$6.98	March 3, 2013	40,000	Disposed
Nov. 20, 2012	OSUR	Nonqualified stock option	Common stock (20,000)	$6.96	Jan. 31, 2013	20,000	Disposed
Nov. 8, 2011	OSUR	Non-Qual. Stock Options	Common Stock (40,000)	$6.87	May 20, 2012	40,000	Disposed
July 12, 2010	DCTH	Stock Option (right to buy)	Common Stock (50,000)	$6.90	July 12, 2020	50,000	Acquired
Feb. 1, 2008	OSUR	NonQual. Stock Options	Common Stock (25,000)	$8.06	Feb. 1, 2018	25,000	Acquired
Feb. 1, 2007	OSUR	NonQual. Stock Options	Common Stock (25,000)	$8.28	Feb. 1, 2017	25,000	Acquired
Jan. 23, 2006	OSUR	NonQual. Stock Options	Common Stock (30,000)	$9.56	Jan. 23, 2016	30,000	Acquired
Jan. 26, 2005	OSUR	Nonqualified Stock Options	Common Stock (30,000)	$5.60	Jan. 26, 2015	30,000	Acquired
Jan. 14, 2004	OSUR	Nonqualified Stock Options	Common Stock (30,000)	$8.20	Jan. 14, 2014	30,000	Acquired

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

Initial ownership (Form 3) 1 holding

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

Date	Ticker	Security	Shares	Ownership
July 14, 2010	DCTH	No securities are beneficially owned	0	Direct