Jerome B Zeldis

Insider

First SEC filing: May 22, 2019 · Latest: May 22, 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.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 40 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

40 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 25, 2022	NXGLW	P	5,300	$1.89	$10,017	88,028 Direct	+6.41%	Acquired	-98.8% (price as of 2026-08-20)
Jan. 7, 2022	PTCT	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 7, 2022	PTCT	A	3,200	—	—	6,500 Direct	+96.97%	Acquired	(price as of 2026-08-20)
Dec. 27, 2021	NXGLW	A	9,091	$0.01	$91	9,091 Direct	—	Acquired	136.0% (price as of 2026-08-20)
Dec. 27, 2021	NXGLW	P	9,091	$5.49	$49,910	82,728 Direct	+12.35%	Acquired	-99.6% (price as of 2026-08-20)
Sept. 23, 2021	SNGX	A	29,126	—	—	29,126 Direct	—	Acquired	(price as of 2026-08-20)
May 14, 2021	SNGX	S	3,000	$0.90	$2,700	22,917 Direct	-11.58%	Disposed	-99.8% (price as of 2026-08-20)
May 14, 2021	SNGX	P	3,000	$0.89	$2,670	25,917 Direct	+13.09%	Acquired	-99.8% (price as of 2026-08-20)
March 8, 2021	NXGLW	A	666,667	—	—	666,667 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 6, 2021	PTCT	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 6, 2021	PTCT	A	1,650	—	—	3,300 Direct	+100.00%	Acquired	(price as of 2026-08-20)
Sept. 16, 2020	SNGX	A	15,228	—	—	15,228 Direct	—	Acquired	(price as of 2026-08-20)
July 14, 2020	STEX	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
May 28, 2020	STEX	P	1,000	$10.49	$10,490	107,944 Direct	+0.94%	Acquired	-99.2% (price as of 2026-08-20)
April 14, 2020	STEX	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 29, 2020	PTCT	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 29, 2020	PTCT	A	1,650	—	—	1,650 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 19, 2019	SNGX	P	2,000	$0.92	$1,840	22,917 Direct	+9.56%	Acquired	-99.8% (price as of 2026-08-20)
Oct. 30, 2019	STEX	A	29,000	—	—	29,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 19, 2019	SNGX	P	4,000	$0.94	$3,760	20,917 Direct	+23.64%	Acquired	-99.8% (price as of 2026-08-20)
Sept. 6, 2019	SNGX	A	30,928	—	—	30,928 Direct	—	Acquired	(price as of 2026-08-20)
May 22, 2019	STEX	M	1,097	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 22, 2019	STEX	M	20,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 22, 2019	STEX	M	1,097	$6.85	$7,514	106,944 Direct	+1.04%	Acquired	-98.8% (price as of 2026-08-20)
May 22, 2019	STEX	M	20,000	$3.40	$68,000	105,847 Direct	+23.30%	Acquired	-97.7% (price as of 2026-08-20)
May 21, 2019	STEX	C	50	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
May 21, 2019	STEX	A	3,804	$7.44	$28,302	85,847 Direct	+4.64%	Acquired	-98.9% (price as of 2026-08-20)
May 21, 2019	STEX	C	13,334	$3.75	$50,002	82,043 Direct	+19.41%	Acquired	-97.9% (price as of 2026-08-20)
April 22, 2019	SNGX	P	10,000	$0.73	$7,300	16,917 Direct	+144.57%	Acquired	-99.8% (price as of 2026-08-20)
Jan. 22, 2019	PTCT	A	14,000	—	—	14,000 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 27, 2018	SNGX	A	17,964	—	—	17,964 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 3, 2018	PTCT	A	14,000	—	—	14,000 Direct	—	Acquired	(price as of 2026-08-20)
June 8, 2017	SNGX	A	13,100	—	—	13,100 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 3, 2017	PTCT	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 22, 2016	STEX	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2016	SNGX	A	40,541	—	—	40,541 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 4, 2016	PTCT	A	12,000	—	—	12,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 23, 2015	SNGX	P	2,500	$1.27	$3,175	69,166 Direct	+3.75%	Acquired	-100.0% (price as of 2026-08-20)
June 18, 2015	SNGX	A	19,868	—	—	19,868 Direct	—	Acquired	(price as of 2026-08-20)
April 9, 2015	SNGX	M	17,857	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 9, 2015	SNGX	M	17,857	$0.61	$10,893	66,666 Direct	+36.59%	Acquired	-100.0% (price as of 2026-08-20)
Jan. 2, 2015	PTCT	A	12,000	$51.00	$612,000	12,000 Direct	—	Acquired	43.0% (price as of 2026-08-20)
July 31, 2014	PTCT	A	20,000	$26.42	$528,400	20,000 Direct	—	Acquired	176.1% (price as of 2026-08-20)
June 19, 2014	SNGX	A	13,669	—	—	13,669 Direct	—	Acquired	(price as of 2026-08-20)
Sept. 27, 2013	SNGX	A	13,275	—	—	13,275 Direct	—	Acquired	(price as of 2026-08-20)
June 25, 2013	SNGX	P	17,857	—	—	17,857 Direct	—	Acquired	(price as of 2026-08-20)
June 25, 2013	SNGX	P	23,809	$1.05	$24,999	48,809 Direct	+95.24%	Acquired	-100.0% (price as of 2026-08-20)
June 20, 2013	SNGX	M	25,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
June 20, 2013	SNGX	M	25,000	$0.30	$7,500	25,000 Direct	—	Acquired	-99.9% (price as of 2026-08-20)
June 21, 2012	SNGX	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
June 22, 2011	SNGX	A	300,000	—	—	300,000 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. 7, 2022	PTCT	Stock Option (Right To Buy)	Common Stock (12,000)	$38.10	Jan. 6, 2032	12,000	Acquired
Dec. 27, 2021	NXGLW	Warrant to Purchase Common Stock	Common Stock (9,091)	$5.50	Dec. 26, 2026	9,091	Acquired
Sept. 23, 2021	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (29,126)	$1.03	Sept. 22, 2031	29,126	Acquired
March 8, 2021	NXGLW	Option to Purchase Common Stock	Common Stock (666,667)	$0.06	March 8, 2031	666,667	Acquired
Jan. 6, 2021	PTCT	Stock Option (Right To Buy)	Common Stock (10,000)	$66.49	Jan. 5, 2031	10,000	Acquired
Sept. 16, 2020	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (15,228)	$1.97	Sept. 15, 2030	15,228	Acquired
July 14, 2020	STEX	Restricted Stock Units ("RSUs")	Common Stock (50,000)	—	—	50,000	Acquired
April 14, 2020	STEX	Stock Option (Right to Buy)	Common Stock (50,000)	$4.66	April 14, 2030	50,000	Acquired
Jan. 29, 2020	PTCT	Stock Option (Right To Buy)	Common Stock (10,000)	$51.16	Jan. 28, 2030	10,000	Acquired
Oct. 30, 2019	STEX	Stock Option (Right to Buy)	Common Stock (29,000)	$7.15	Oct. 30, 2029	29,000	Acquired
Sept. 6, 2019	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (30,928)	$0.97	Sept. 5, 2029	30,928	Acquired
May 22, 2019	STEX	Warrants to Purchase Common Stock	Common Stock (1,097)	$6.85	Aug. 17, 2021	1,097	Disposed
May 22, 2019	STEX	Options to Purchase Common Stock	Common Stock (20,000)	$3.40	Dec. 22, 2026	20,000	Disposed
May 21, 2019	STEX	Series C Preferred Stock	Common Stock (13,334)	$3.75	—	50	Disposed
Jan. 22, 2019	PTCT	Stock Option (Right to Buy)	Common Stock (14,000)	$33.02	Jan. 21, 2029	14,000	Acquired
Sept. 27, 2018	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (17,964)	$1.67	Sept. 26, 2028	17,964	Acquired
Jan. 3, 2018	PTCT	Stock Option (Right To Buy)	Common Stock (14,000)	$18.01	Jan. 2, 2028	14,000	Acquired
June 8, 2017	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (13,100)	$2.29	June 7, 2027	13,100	Acquired
Jan. 3, 2017	PTCT	Stock Option (Right To Buy)	Common Stock (12,000)	$11.23	Jan. 2, 2027	12,000	Acquired
Dec. 22, 2016	STEX	Options to Purchase Common Stock	Common Stock (50,000)	$1.36	Dec. 22, 2026	50,000	Acquired
June 16, 2016	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (40,541)	$0.74	June 15, 2026	40,541	Acquired
Jan. 4, 2016	PTCT	Stock Option (right to buy)	Common Stock (12,000)	$30.86	Jan. 3, 2026	12,000	Acquired
June 18, 2015	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (19,868)	$1.51	June 17, 2025	19,868	Acquired
April 9, 2015	SNGX	Common Stock Warrant	Common Stock (17,857)	$0.61	June 25, 2018	17,857	Disposed
Jan. 2, 2015	PTCT	Stock Option (right to buy)	Common Stock (12,000)	$51.00	Jan. 1, 2025	12,000	Acquired
July 31, 2014	PTCT	Stock Option (right to buy)	Common Stock (20,000)	$26.42	July 31, 2024	20,000	Acquired
June 19, 2014	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (13,669)	$2.19	June 18, 2024	13,669	Acquired
Sept. 27, 2013	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (13,275)	$2.26	Sept. 26, 2023	13,275	Acquired
June 25, 2013	SNGX	Common Stock Warrants	Common Stock (17,857)	$1.65	June 25, 2018	17,857	Acquired
June 20, 2013	SNGX	Stock Option (Right to Buy)	Common Stock (25,000)	$0.30	June 20, 2022	25,000	Disposed
June 21, 2012	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (25,000)	$0.30	June 20, 2022	25,000	Acquired
June 22, 2011	SNGX	Stock Option (Right to Buy) [F1]	Common Stock (300,000)	$0.20	June 22, 2021	300,000	Acquired

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

Initial ownership (Form 3) 18 holdings

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

Date	Ticker	Security	Shares	Ownership
May 22, 2019	STEX	Common Stock, $0.001 par value per share	68,709	Direct
May 22, 2019	STEX	Options to Purchase Common Stock→ Common Stock (120,000)	120,000	Direct
May 22, 2019	STEX	Options to Purchase Common Stock→ Common Stock (20,000)	20,000	Direct
May 22, 2019	STEX	Options to Purchase Common Stock→ Common Stock (20,000)	20,000	Direct
May 22, 2019	STEX	Series C Preferred Stock→ Common Stock	—	Direct
May 22, 2019	STEX	Warrants to Purchase Common Stock→ Common Stock (1,097)	1,097	Direct
April 19, 2017	XAIR	Common Stock	3,927	Direct
April 19, 2017	XAIR	Stock Option (Right to Buy)→ Common Stock (1,245)	1,245	Direct
April 19, 2017	XAIR	RSU→ Common Stock (7,854)	7,854	Direct
April 19, 2017	XAIR	Stock Option (Right to Buy)→ Common Stock (23,919)	23,919	Direct
July 20, 2015	STEX	Common Stock, $0.001 par value per share	137,245	Direct
July 20, 2015	STEX	Options to Purchase Common Stock→ Common Stock (300,000)	300,000	Direct
July 20, 2015	STEX	Options to Purchase Common Stock→ Common Stock (50,000)	50,000	Direct
July 20, 2015	STEX	Series C Preferred Stock→ Common Stock (42,334)	42,334	Direct
July 20, 2015	STEX	Warrants to Purchase Common Stock→ Common Stock (41,628)	41,628	Direct
July 20, 2015	STEX	Warrants to Purchase Common Stock→ Common Stock (10,409)	10,409	Direct
July 20, 2015	STEX	Warrants to Purchase Common Stock→ Common Stock (10,409)	10,409	Direct
July 20, 2015	STEX	Warrants to Purchase Common Stock→ Common Stock (6,123)	6,123	Direct