Otto C Morch

Insider

First SEC filing: Dec. 23, 2019 · Latest: Dec. 23, 2019

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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

HDSN selling May 18, 2018

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 53 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

53 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 5, 2022	HDSN	M	40,000	$0.62	$24,800	87,366 Direct	+84.45%	Acquired	837.9% (price as of 2026-08-19)
July 5, 2022	HDSN	M	40,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
July 5, 2022	HDSN	M	10,281	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
July 5, 2022	HDSN	M	10,281	$3.27	$33,619	47,366 Direct	+27.72%	Acquired	77.8% (price as of 2026-08-19)
June 9, 2022	HDSN	A	2,726	—	—	2,726 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 19, 2019	HDSN	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 19, 2019	HDSN	A	35,000	—	—	35,000 Direct	—	Acquired	(price as of 2026-08-19)
Aug. 27, 2019	HDSN	A	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 30, 2018	HDSN	A	42,553	—	—	42,553 Direct	—	Acquired	(price as of 2026-08-19)
Nov. 30, 2018	HDSN	A	40,602	—	—	40,602 Direct	—	Acquired	(price as of 2026-08-19)
July 26, 2018	HDSN	A	5,682	—	—	37,085 Direct	+18.09%	Acquired	(price as of 2026-08-19)
May 18, 2018	HDSN	S	7,224	$2.52	$18,204	31,403 Direct	-18.70%	Disposed	130.8% (price as of 2026-08-19)
May 18, 2018	HDSN	S	5,000	$2.51	$12,550	38,627 Direct	-11.46%	Disposed	131.7% (price as of 2026-08-19)
Nov. 13, 2017	HDSN	A	13,513	—	—	13,513 Direct	—	Acquired	(price as of 2026-08-19)
Aug. 21, 2017	HDSN	M	16,600	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Aug. 21, 2017	HDSN	F	6,376	$8.41	$53,622	185,060 Direct	-3.33%	Disposed	-30.9% (price as of 2026-08-19)
Aug. 21, 2017	HDSN	M	16,600	$8.41	$139,606	191,436 Direct	+9.49%	Acquired	-30.9% (price as of 2026-08-19)
Nov. 14, 2016	HDSN	M	10,000	—	—	16,600 Direct	-37.59%	Disposed	(price as of 2026-08-19)
Nov. 14, 2016	HDSN	M	10,000	$3.23	$32,300	201,425 Direct	+5.22%	Acquired	80.0% (price as of 2026-08-19)
Aug. 24, 2016	HDSN	A	16,854	$9.00	$151,686	16,854 Direct	—	Acquired	-35.4% (price as of 2026-08-19)
Aug. 15, 2016	HDSN	G	1,000	—	—	184,571 Direct	-0.54%	Disposed	(price as of 2026-08-19)
Aug. 15, 2016	HDSN	S	2,000	$5.00	$10,000	185,571 Direct	-1.07%	Disposed	16.3% (price as of 2026-08-19)
Aug. 12, 2016	HDSN	S	5,000	$4.95	$24,750	187,571 Direct	-2.60%	Disposed	17.5% (price as of 2026-08-19)
Sept. 9, 2015	HDSN	A	28,169	—	—	28,169 Direct	—	Acquired	(price as of 2026-08-19)
May 4, 2015	HDSN	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
May 4, 2015	HDSN	F	9,897	$4.34	$42,953	164,402 Direct	-5.68%	Disposed	34.0% (price as of 2026-08-19)
May 4, 2015	HDSN	M	25,000	$1.72	$43,000	174,299 Direct	+16.74%	Acquired	238.1% (price as of 2026-08-19)
Jan. 16, 2015	HDSN	M	13,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Jan. 16, 2015	HDSN	M	13,000	$0.85	$11,050	174,299 Direct	+8.06%	Acquired	584.1% (price as of 2026-08-19)
Oct. 1, 2014	HDSN	A	26,600	—	—	26,600 Direct	—	Acquired	(price as of 2026-08-19)
Oct. 29, 2013	HDSN	A	21,118	—	—	21,118 Direct	—	Acquired	(price as of 2026-08-19)
May 10, 2013	HDSN	M	7,000	—	—	13,000 Direct	-35.00%	Disposed	(price as of 2026-08-19)
May 10, 2013	HDSN	M	7,000	$0.85	$5,950	13,300 Direct	+111.11%	Acquired	584.1% (price as of 2026-08-19)
Aug. 7, 2012	HDSN	A	10,281	—	—	10,281 Direct	—	Acquired	(price as of 2026-08-19)
March 8, 2012	HDSN	S	2,500	$3.07	$7,675	6,300 Direct	-28.41%	Disposed	89.4% (price as of 2026-08-19)
Nov. 29, 2011	HDSN	M	2,500	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Nov. 29, 2011	HDSN	M	2,500	$1.12	$2,800	8,800 Direct	+39.68%	Acquired	419.2% (price as of 2026-08-19)
Aug. 25, 2011	HDSN	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-19)
May 20, 2011	HDSN	S	1,500	$1.90	$2,850	6,300 Direct	-19.23%	Disposed	206.1% (price as of 2026-08-19)
May 17, 2011	HDSN	S	4,000	$1.85	$7,400	7,800 Direct	-33.90%	Disposed	214.3% (price as of 2026-08-19)
May 16, 2011	HDSN	S	3,300	$1.88	$6,204	11,800 Direct	-21.85%	Disposed	209.3% (price as of 2026-08-19)
May 13, 2011	HDSN	S	2,000	$1.89	$3,780	15,100 Direct	-11.70%	Disposed	207.7% (price as of 2026-08-19)
May 12, 2011	HDSN	S	500	$1.92	$960	17,100 Direct	-2.84%	Disposed	202.9% (price as of 2026-08-19)
May 12, 2011	HDSN	S	400	$1.92	$768	17,600 Direct	-2.22%	Disposed	202.9% (price as of 2026-08-19)
May 12, 2011	HDSN	S	100	$1.93	$193	18,000 Direct	-0.55%	Disposed	201.3% (price as of 2026-08-19)
May 12, 2011	HDSN	S	1,200	$1.91	$2,292	18,100 Direct	-6.22%	Disposed	204.5% (price as of 2026-08-19)
May 11, 2011	HDSN	S	100	$1.90	$190	19,300 Direct	-0.52%	Disposed	206.1% (price as of 2026-08-19)
May 10, 2011	HDSN	S	1,600	$1.94	$3,104	19,400 Direct	-7.62%	Disposed	199.7% (price as of 2026-08-19)
May 10, 2011	HDSN	S	300	$1.97	$591	21,000 Direct	-1.41%	Disposed	195.2% (price as of 2026-08-19)
Aug. 10, 2010	HDSN	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-19)
June 14, 2010	HDSN	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
June 14, 2010	HDSN	M	10,000	$0.94	$9,400	21,300 Direct	+88.50%	Acquired	518.6% (price as of 2026-08-19)
June 14, 2010	HDSN	M	10,000	—	—	0 Direct	—	Acquired	(price as of 2026-08-19)
June 14, 2010	HDSN	M	10,000	$0.94	$9,400	21,300 Direct	+88.50%	Acquired	518.6% (price as of 2026-08-19)
May 13, 2010	HDSN	S	6,209	$2.11	$13,101	11,300 Direct	-35.46%	Disposed	175.6% (price as of 2026-08-19)
May 13, 2010	HDSN	S	2,500	$2.10	$5,250	17,509 Direct	-12.49%	Disposed	176.9% (price as of 2026-08-19)
Oct. 20, 2009	HDSN	A	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-19)
Oct. 20, 2009	HDSN	M	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-19)
Oct. 2, 2009	HDSN	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Oct. 2, 2009	HDSN	M	10,000	$0.95	$9,500	20,009 Direct	+99.91%	Acquired	512.1% (price as of 2026-08-19)
March 2, 2009	HDSN	M	5,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
March 2, 2009	HDSN	M	5,000	$1.13	$5,650	10,009 Direct	+99.82%	Acquired	414.6% (price as of 2026-08-19)
May 29, 2008	HDSN	M	20,000	—	—	20,000 Direct	-50.00%	Disposed	(price as of 2026-08-19)
May 29, 2008	HDSN	M	20,000	$0.85	$17,000	25,009 Direct	+399.28%	Acquired	584.1% (price as of 2026-08-19)
May 28, 2008	HDSN	S	3,500	$3.07	$10,745	5,009 Direct	-41.13%	Disposed	89.4% (price as of 2026-08-19)
May 28, 2008	HDSN	S	2,050	$3.06	$6,273	8,509 Direct	-19.41%	Disposed	90.0% (price as of 2026-08-19)
May 28, 2008	HDSN	S	14,450	$3.05	$44,072	10,559 Direct	-57.78%	Disposed	90.7% (price as of 2026-08-19)
Nov. 20, 2007	HDSN	M	40,000	—	—	40,000 Direct	—	Acquired	(price as of 2026-08-19)
Sept. 12, 2007	HDSN	M	5,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-19)
Sept. 12, 2007	HDSN	M	5,000	$0.85	$4,250	5,009 Direct	+55555.56%	Acquired	584.1% (price as of 2026-08-19)
Sept. 7, 2007	HDSN	S	5,000	$1.18	$5,900	9 Direct	-99.82%	Disposed	392.8% (price as of 2026-08-19)
Dec. 29, 2006	HDSN	A	2,500	—	—	2,500 Direct	—	Acquired	(price as of 2026-08-19)
July 1, 2005	HDSN	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-19)
Oct. 4, 2004	HDSN	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-19)
March 4, 2004	HDSN	A	5,000	—	—	5,000 Direct	—	Acquired	(price as of 2026-08-19)
Dec. 17, 2003	HDSN	P	3,409	$1.10	$3,750	5,009 Direct	+213.06%	Acquired	428.6% (price as of 2026-08-19)
Oct. 23, 2003	HDSN	P	1,000	$1.10	$1,100	1,600 Direct	+166.67%	Acquired	428.6% (price as of 2026-08-19)
Oct. 23, 2003	HDSN	P	1,000	$1.10	$1,100	1,000 Direct	—	Acquired	428.6% (price as of 2026-08-19)

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
July 5, 2022	HDSN	Stock Option	Common Stock (40,000)	$0.62	Aug. 27, 2022	40,000	Disposed
July 5, 2022	HDSN	Stock Option	Common Stock (10,281)	$3.27	Aug. 7, 2022	10,281	Disposed
June 9, 2022	HDSN	Stock Option	Common Stock (2,726)	$9.82	June 9, 2025	2,726	Acquired
Dec. 19, 2019	HDSN	Stock Option (Right to Buy)	Common Stock (25,000)	$0.75	Dec. 19, 2029	25,000	Acquired
Dec. 19, 2019	HDSN	Stock Option (Right to Buy)	Common Stock (35,000)	$0.75	Dec. 19, 2029	35,000	Acquired
Aug. 27, 2019	HDSN	Stock Option (right to buy)	Common Stock (40,000)	$0.62	Aug. 27, 2022	40,000	Acquired
Nov. 30, 2018	HDSN	Stock Option (Right to Buy)	Common Stock (42,553)	$1.09	Nov. 30, 2021	42,553	Acquired
Nov. 30, 2018	HDSN	Stock Option (Right to Buy)	Common Stock (40,602)	$1.09	Nov. 30, 2021	40,602	Acquired
Nov. 13, 2017	HDSN	Stock Option (Right to buy)	Common Stock (13,513)	$6.18	Nov. 13, 2020	13,513	Acquired
Aug. 21, 2017	HDSN	Stock Option (Right to Buy)	Common Stock (16,600)	$3.23	Oct. 1, 2017	16,600	Disposed
Nov. 14, 2016	HDSN	Stock Option (Right to Buy)	Common Stock (10,000)	$3.23	Oct. 1, 2017	10,000	Disposed
Aug. 24, 2016	HDSN	Stock Option (Right to Buy)	Common Stock (16,854)	$6.35	Aug. 24, 2019	16,854	Acquired
Sept. 9, 2015	HDSN	Stock Option (Right to Buy)	Common Stock (28,169)	$3.05	Sept. 9, 2018	28,169	Acquired
May 4, 2015	HDSN	Stock Option (Right to Buy)	Common Stock (25,000)	$1.72	Aug. 10, 2015	25,000	Disposed
Jan. 16, 2015	HDSN	Stock Option (Right to Buy)	Common Stock (13,000)	$0.85	Nov. 20, 2017	13,000	Disposed
Oct. 1, 2014	HDSN	Stock Option (Right to Buy)	Common Stock (26,600)	$3.23	Oct. 1, 2017	26,600	Acquired
Oct. 29, 2013	HDSN	Stock Option (Right to Buy)	Common Stock (21,118)	$1.88	Oct. 29, 2023	21,118	Acquired
May 10, 2013	HDSN	Stock Option (Right to Buy)	Common Stock (7,000)	$0.85	Nov. 20, 2017	7,000	Disposed
Aug. 7, 2012	HDSN	Stock Option (Right to Buy)	Common Stock (10,281)	$3.27	Aug. 7, 2022	10,281	Acquired
Nov. 29, 2011	HDSN	Stock Option (Right to Buy)	Common Stock (2,500)	$1.12	Dec. 29, 2011	2,500	Disposed
Aug. 25, 2011	HDSN	Stock Option (Right to Buy)	Common Stock (25,000)	$1.31	Aug. 25, 2021	25,000	Acquired
Aug. 10, 2010	HDSN	Stock Option (Right to Buy)	Common Stock (25,000)	$1.72	Aug. 10, 2015	25,000	Acquired
June 14, 2010	HDSN	Stock Option (right to buy)	Common Stock (10,000)	$0.94	July 1, 2010	10,000	Disposed
June 14, 2010	HDSN	Stock Option (Right to Buy)	Common Stock (10,000)	$0.94	July 1, 2010	10,000	Acquired
Oct. 20, 2009	HDSN	Stock Option (right to buy)	Common Stock (40,000)	$1.21	Oct. 20, 2019	40,000	Acquired
Oct. 20, 2009	HDSN	Stock Option (Right to Buy)	Common Stock (40,000)	$1.21	Oct. 20, 2019	40,000	Acquired
Oct. 2, 2009	HDSN	Stock Option (Right to Buy)	Common Stock (10,000)	$0.95	Oct. 4, 2009	10,000	Disposed
March 2, 2009	HDSN	Stock Option (Right to Buy)	Common Stock (5,000)	$1.13	March 4, 2009	5,000	Disposed
May 29, 2008	HDSN	Stock Option (Right to Buy)	Common Stock (20,000)	$0.85	Nov. 20, 2017	20,000	Disposed
Nov. 20, 2007	HDSN	Stock Option (Right to Buy)	Common Stock (40,000)	$0.85	Nov. 20, 2017	40,000	Acquired
Sept. 12, 2007	HDSN	Employee Stock Option - Right to Buy	Common Stock (5,000)	$0.85	Jan. 2, 2008	5,000	Disposed
Dec. 29, 2006	HDSN	Stock Option (Right to Buy)	Common Stock (2,500)	$1.12	Dec. 29, 2011	2,500	Acquired
July 1, 2005	HDSN	Stock Option (Right to Buy)	Common Stock (10,000)	$0.94	July 1, 2010	10,000	Acquired
Oct. 4, 2004	HDSN	Stock Option (Right to Buy)	Common Stock (10,000)	$0.95	Oct. 4, 2009	10,000	Acquired
March 4, 2004	HDSN	Stock Option (Right to Buy)	Hudson Technologies, Inc. Common Stock (5,000)	$1.13	March 4, 2009	5,000	Acquired

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