Robert J. Spiegel

Insider

First SEC filing: Sept. 30, 2015 · Latest: July 1, 2025

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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.
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 + 90 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

90 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 30, 2026	GERN	A	6,103	$1.28	$7,812	205,810 Direct	+3.06%	Acquired	22.3% (price as of 2026-08-20)
June 30, 2025	GERN	A	5,540	$1.41	$7,811	182,844 Direct	+3.12%	Acquired	11.0% (price as of 2026-08-20)
May 21, 2025	GERN	A	180,000	—	—	180,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2025	GERN	A	4,913	$1.59	$7,812	177,304 Direct	+2.85%	Acquired	-1.6% (price as of 2026-08-20)
Dec. 31, 2024	GERN	A	2,206	$3.54	$7,809	172,391 Direct	+1.30%	Acquired	-55.8% (price as of 2026-08-20)
Dec. 31, 2024	GERN	A	2,206	—	—	172,391 Direct	-1.26%	Disposed	(price as of 2026-08-20)
Sept. 30, 2024	GERN	A	1,767	$4.54	$8,022	170,185 Direct	+1.05%	Acquired	-65.5% (price as of 2026-08-20)
Sept. 30, 2024	GERN	A	1,767	—	—	170,185 Direct	-1.03%	Disposed	(price as of 2026-08-20)
June 28, 2024	GERN	A	1,916	$4.24	$8,124	168,418 Direct	+1.15%	Acquired	-63.1% (price as of 2026-08-20)
June 28, 2024	GERN	A	1,916	—	—	168,418 Direct	-1.12%	Disposed	(price as of 2026-08-20)
May 9, 2024	GERN	A	180,000	—	—	180,000 Direct	—	Acquired	(price as of 2026-08-20)
March 29, 2024	GERN	A	2,462	$3.30	$8,125	166,502 Direct	+1.50%	Acquired	-52.6% (price as of 2026-08-20)
March 29, 2024	GERN	A	2,462	—	—	166,502 Direct	-1.46%	Disposed	(price as of 2026-08-20)
Dec. 29, 2023	GERN	A	3,406	—	—	164,040 Direct	+2.12%	Acquired	(price as of 2026-08-20)
Sept. 29, 2023	GERN	A	3,390	—	—	160,634 Direct	+2.16%	Acquired	(price as of 2026-08-20)
June 30, 2023	BGMS	A	42,438	—	—	42,438 Direct	—	Acquired	(price as of 2026-08-20)
June 30, 2023	BGMS	A	21,219	—	—	39,415 Direct	+116.61%	Acquired	(price as of 2026-08-20)
June 30, 2023	GERN	A	2,239	—	—	157,244 Direct	+1.44%	Acquired	(price as of 2026-08-20)
May 31, 2023	GERN	A	125,000	—	—	125,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2023	GERN	A	3,312	—	—	155,005 Direct	+2.18%	Acquired	(price as of 2026-08-20)
Dec. 30, 2022	GERN	A	2,970	—	—	151,693 Direct	+2.00%	Acquired	(price as of 2026-08-20)
Sept. 30, 2022	GERN	A	3,071	—	—	148,723 Direct	+2.11%	Acquired	(price as of 2026-08-20)
June 30, 2022	GERN	A	4,637	—	—	145,652 Direct	+3.29%	Acquired	(price as of 2026-08-20)
June 14, 2022	BGMS	A	31,645	—	—	31,645 Direct	—	Acquired	(price as of 2026-08-20)
June 14, 2022	BGMS	A	15,822	—	—	18,196 Direct	+666.47%	Acquired	(price as of 2026-08-20)
May 10, 2022	GERN	A	125,000	—	—	125,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2022	GERN	A	5,284	—	—	141,015 Direct	+3.89%	Acquired	(price as of 2026-08-20)
Dec. 31, 2021	GERN	A	5,891	—	—	135,731 Direct	+4.54%	Acquired	(price as of 2026-08-20)
Sept. 30, 2021	GERN	A	5,246	—	—	129,840 Direct	+4.21%	Acquired	(price as of 2026-08-20)
June 30, 2021	GERN	A	5,097	—	—	124,594 Direct	+4.27%	Acquired	(price as of 2026-08-20)
June 15, 2021	BGMS	A	2,374	—	—	2,374 Direct	—	Acquired	(price as of 2026-08-20)
June 15, 2021	BGMS	A	4,748	—	—	4,748 Direct	—	Acquired	(price as of 2026-08-20)
May 11, 2021	GERN	A	83,000	—	—	83,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2021	GERN	A	4,549	—	—	119,497 Direct	+3.96%	Acquired	(price as of 2026-08-20)
Dec. 31, 2020	GERN	A	4,520	—	—	114,948 Direct	+4.09%	Acquired	(price as of 2026-08-20)
Sept. 30, 2020	GERN	A	4,130	—	—	110,428 Direct	+3.89%	Acquired	(price as of 2026-08-20)
June 30, 2020	GERN	A	3,297	—	—	106,298 Direct	+3.20%	Acquired	(price as of 2026-08-20)
June 25, 2020	BGMS	A	5,200	—	—	5,200 Direct	—	Acquired	(price as of 2026-08-20)
June 5, 2020	GERN	A	83,000	—	—	83,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2020	GERN	A	6,039	—	—	103,001 Direct	+6.23%	Acquired	(price as of 2026-08-20)
Dec. 31, 2019	GERN	A	5,284	—	—	96,962 Direct	+5.76%	Acquired	(price as of 2026-08-20)
Sept. 30, 2019	GERN	A	5,404	—	—	91,678 Direct	+6.26%	Acquired	(price as of 2026-08-20)
June 28, 2019	GERN	A	5,097	—	—	86,274 Direct	+6.28%	Acquired	(price as of 2026-08-20)
June 6, 2019	GERN	A	70,000	—	—	70,000 Direct	—	Acquired	(price as of 2026-08-20)
May 29, 2019	BGMS	A	18,750	—	—	18,750 Direct	—	Acquired	(price as of 2026-08-20)
March 29, 2019	GERN	A	4,329	—	—	81,177 Direct	+5.63%	Acquired	(price as of 2026-08-20)
March 15, 2019	PDSB	M	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 15, 2019	PDSB	M	10,000	—	—	48,661 Direct	+25.87%	Acquired	(price as of 2026-08-20)
Dec. 31, 2018	GERN	A	7,188	—	—	76,848 Direct	+10.32%	Acquired	(price as of 2026-08-20)
Sept. 28, 2018	GERN	A	4,084	—	—	69,660 Direct	+6.23%	Acquired	(price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	35,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	35,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	35,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	15,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	10,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	45,000	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Sept. 13, 2018	GERN	S 10b5-1	35,000	$6.85	$239,750	65,576 Direct	-34.80%	Disposed	-77.2% (price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	35,000	$1.94	$67,900	100,576 Direct	+53.37%	Acquired	-19.3% (price as of 2026-08-20)
Sept. 13, 2018	GERN	S 10b5-1	35,000	$6.85	$239,750	65,576 Direct	-34.80%	Disposed	-77.2% (price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	35,000	$1.10	$38,500	100,576 Direct	+53.37%	Acquired	42.3% (price as of 2026-08-20)
Sept. 13, 2018	GERN	S 10b5-1	35,000	$6.85	$239,750	65,576 Direct	-34.80%	Disposed	-77.2% (price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	35,000	$1.41	$49,350	100,576 Direct	+53.37%	Acquired	11.0% (price as of 2026-08-20)
Sept. 13, 2018	GERN	S 10b5-1	15,000	$6.85	$102,750	65,576 Direct	-18.62%	Disposed	-77.2% (price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	15,000	$4.91	$73,650	80,576 Direct	+22.87%	Acquired	-68.1% (price as of 2026-08-20)
Sept. 13, 2018	GERN	S 10b5-1	10,000	$6.85	$68,500	65,576 Direct	-13.23%	Disposed	-77.2% (price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	10,000	$4.91	$49,100	75,576 Direct	+15.25%	Acquired	-68.1% (price as of 2026-08-20)
Sept. 13, 2018	GERN	S 10b5-1	45,000	$6.85	$308,250	65,576 Direct	-40.70%	Disposed	-77.2% (price as of 2026-08-20)
Sept. 13, 2018	GERN	M 10b5-1	45,000	$5.29	$238,050	110,576 Direct	+68.62%	Acquired	-70.4% (price as of 2026-08-20)
Sept. 6, 2018	BGMS	A	8,576	—	—	8,576 Direct	—	Acquired	(price as of 2026-08-20)
Aug. 14, 2018	PDSB	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
June 29, 2018	GERN	A	2,095	—	—	65,576 Direct	+3.30%	Acquired	(price as of 2026-08-20)
June 19, 2018	PDSB	A	20,000	—	—	20,000 Direct	—	Acquired	(price as of 2026-08-20)
May 15, 2018	GERN	A	70,000	—	—	70,000 Direct	—	Acquired	(price as of 2026-08-20)
March 29, 2018	GERN	A	1,691	—	—	63,481 Direct	+2.74%	Acquired	(price as of 2026-08-20)
Dec. 29, 2017	GERN	A	3,993	—	—	61,790 Direct	+6.91%	Acquired	(price as of 2026-08-20)
Sept. 29, 2017	GERN	A	3,297	—	—	57,797 Direct	+6.05%	Acquired	(price as of 2026-08-20)
June 30, 2017	GERN	A	2,595	—	—	54,500 Direct	+5.00%	Acquired	(price as of 2026-08-20)
June 20, 2017	PDSB	A	15,000	$10.15	$152,250	15,000 Direct	—	Acquired	-99.9% (price as of 2026-08-20)
May 9, 2017	GERN	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2017	GERN	A	3,166	—	—	51,905 Direct	+6.50%	Acquired	(price as of 2026-08-20)
June 21, 2016	PDSB	A	15,000	—	—	15,000 Direct	—	Acquired	(price as of 2026-08-20)
May 17, 2016	GERN	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 4, 2016	PTCT	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
Oct. 6, 2015	PDSB	C	14,409	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 6, 2015	PDSB	C	32,258	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Oct. 6, 2015	PDSB	J	1,549	$7.91	$12,253	38,661 Direct	+4.17%	Acquired	-99.9% (price as of 2026-08-20)
Oct. 6, 2015	PDSB	P	3,000	$11.00	$33,000	37,112 Direct	+8.79%	Acquired	-99.9% (price as of 2026-08-20)
Oct. 6, 2015	PDSB	C	10,533	—	—	34,112 Direct	+44.67%	Acquired	(price as of 2026-08-20)
Oct. 6, 2015	PDSB	C	23,579	—	—	23,579 Direct	—	Acquired	(price as of 2026-08-20)
May 18, 2015	GERN	A	35,000	—	—	35,000 Direct	—	Acquired	(price as of 2026-08-20)
March 13, 2015	PTCT	S 10b5-1	2	$75.95	$152	3,239 Direct	-0.06%	Disposed	-3.9% (price as of 2026-08-20)
March 13, 2015	PTCT	S 10b5-1	1,028	$75.10	$77,203	3,241 Direct	-24.08%	Disposed	-2.9% (price as of 2026-08-20)
Jan. 2, 2015	PTCT	A	10,000	$51.00	$510,000	10,000 Direct	—	Acquired	43.0% (price as of 2026-08-20)
Dec. 31, 2014	GERN	A	2,212	—	—	48,739 Direct	+4.75%	Acquired	(price as of 2026-08-20)
June 30, 2014	GERN	D	2,500	—	—	46,527 Direct	-5.10%	Disposed	(price as of 2026-08-20)
June 30, 2014	GERN	A	4,478	—	—	49,027 Direct	+10.05%	Acquired	(price as of 2026-08-20)
May 20, 2014	GERN	A	35,000	—	—	35,000 Direct	—	Acquired	(price as of 2026-08-20)
March 31, 2014	GERN	A	6,878	—	—	44,549 Direct	+18.26%	Acquired	(price as of 2026-08-20)
March 13, 2014	PTCT	S 10b5-1	1,186	$31.75	$37,656	4,269 Direct	+38.47%	Acquired	129.8% (price as of 2026-08-20)
Feb. 27, 2014	PTCT	A	150,000	$33.97	$5,095,500	150,000 Direct	—	Acquired	114.7% (price as of 2026-08-20)

Showing latest 100 of 125 transactions

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 21, 2025	GERN	Stock Option (right to buy)	Common Stock (180,000)	$1.34	May 20, 2035	180,000	Acquired
May 9, 2024	GERN	Stock Option (right to buy)	Common Stock (180,000)	$3.88	May 8, 2034	180,000	Acquired
June 30, 2023	BGMS	Stock Option (right to buy)	Common Stock (42,438)	$0.59	June 30, 2033	42,438	Acquired
May 31, 2023	GERN	Stock Option (right to buy)	Common Stock (125,000)	$3.27	May 30, 2033	125,000	Acquired
June 14, 2022	BGMS	Stock Option (right to buy)	Common Stock (31,645)	$1.11	June 14, 2032	31,645	Acquired
May 10, 2022	GERN	Stock Option (right to buy)	Common Stock (125,000)	$1.48	May 9, 2032	125,000	Acquired
June 15, 2021	BGMS	Stock Option (right to buy)	Common Stock (4,748)	$6.69	June 15, 2031	4,748	Acquired
May 11, 2021	GERN	Stock Option (right to buy)	Common Stock (83,000)	$1.39	May 10, 2031	83,000	Acquired
June 25, 2020	BGMS	Stock Option (right to buy)	Common Stock (5,200)	$4.70	June 25, 2030	5,200	Acquired
June 5, 2020	GERN	Stock Option (right to buy)	Common Stock (83,000)	$1.54	June 4, 2030	83,000	Acquired
June 6, 2019	GERN	Stock Option (right to buy)	Common Stock (70,000)	$1.38	June 5, 2029	70,000	Acquired
May 29, 2019	BGMS	Stock Option (right to buy)	Common Stock (18,750)	$0.64	May 29, 2029	18,750	Acquired
March 15, 2019	PDSB	Restricted Stock Units	Common Stock (10,000)	—	—	10,000	Disposed
Sept. 13, 2018	GERN	Stock Option (Right to Buy)	Common Stock (35,000)	$1.94	May 20, 2024	35,000	Disposed
Sept. 13, 2018	GERN	Stock Option (Right to Buy)	Common Stock (35,000)	$1.10	May 22, 2023	35,000	Disposed
Sept. 13, 2018	GERN	Stock Option (Right to Buy)	Common Stock (35,000)	$1.41	May 17, 2022	35,000	Disposed
Sept. 13, 2018	GERN	Stock Option (Right to Buy)	Common Stock (15,000)	$4.91	May 11, 2021	15,000	Disposed
Sept. 13, 2018	GERN	Stock Option (Right to Buy)	Common Stock (10,000)	$4.91	May 11, 2021	10,000	Disposed
Sept. 13, 2018	GERN	Stock Option (Right to Buy)	Common Stock (45,000)	$5.29	May 19, 2020	45,000	Disposed
Sept. 6, 2018	BGMS	Stock Option (right to buy)	Common Stock (8,576)	$1.43	Sept. 6, 2028	8,576	Acquired
Aug. 14, 2018	PDSB	Restricted Stock Units	Common Stock (10,000)	—	—	10,000	Acquired
June 19, 2018	PDSB	Stock Option (Right To Purchase)	Common Stock (20,000)	$1.10	—	20,000	Acquired
May 15, 2018	GERN	Stock Option (right to buy)	Common Stock (70,000)	$3.43	May 14, 2028	70,000	Acquired
June 20, 2017	PDSB	Stock Option (right To Purchase)	Common Stock (15,000)	$10.15	June 20, 2027	15,000	Acquired
May 9, 2017	GERN	Stock Option (right to buy)	Common Stock (50,000)	$2.63	May 9, 2027	50,000	Acquired
June 21, 2016	PDSB	Stock Option (right To Purchase)	Common Stock (15,000)	$9.34	June 21, 2026	15,000	Acquired
May 17, 2016	GERN	Stock Option (right to buy)	Common Stock (50,000)	$2.74	May 17, 2026	50,000	Acquired
Jan. 4, 2016	PTCT	Stock Option (right to buy)	Common Stock (10,000)	$30.86	Jan. 3, 2026	10,000	Acquired
Oct. 6, 2015	PDSB	Series C-2 Convertible Preferred Stock	Common Stock (10,533)	—	—	14,409	Disposed
Oct. 6, 2015	PDSB	Series C-1 Convertible Preferred Stock	Common Stock (23,579)	—	—	32,258	Disposed
May 18, 2015	GERN	Stock Option (right to buy)	Common Stock (35,000)	$3.88	May 18, 2025	35,000	Acquired
Jan. 2, 2015	PTCT	Stock Option (right to buy)	Common Stock (10,000)	$51.00	Jan. 1, 2025	10,000	Acquired
May 20, 2014	GERN	Stock Option (right to buy)	Common Stock (35,000)	$1.94	May 20, 2024	35,000	Acquired
Feb. 27, 2014	PTCT	Stock Option (right to buy)	Common Stock (150,000)	$33.97	Feb. 26, 2024	150,000	Acquired
May 22, 2013	GERN	Stock Option (right to buy)	Common Stock (35,000)	$1.10	May 22, 2023	35,000	Acquired
May 17, 2012	GERN	Stock Option (right to buy)	Common Stock (35,000)	$1.41	May 17, 2022	35,000	Acquired
Jan. 1, 2012	CAPS	Stock Option (Right to Buy)	Common Stock (10,000)	$0.26	Jan. 1, 2022	10,000	Acquired
May 11, 2011	GERN	Stock Option (right to buy)	Common Stock (15,000)	$4.91	May 11, 2021	15,000	Acquired
May 11, 2011	GERN	Stock Option (right to buy)	Common Stock (10,000)	$4.91	May 11, 2021	10,000	Acquired
Jan. 1, 2011	CAPS	Stock Option (Right to Buy)	Common Stock (10,000)	$0.58	Jan. 1, 2021	10,000	Acquired
May 21, 2010	CAPS	Stock Option (Right to Buy)	Common Stock (50,000)	$0.82	May 21, 2020	50,000	Acquired

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

Initial ownership (Form 3) 8 holdings

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

Date	Ticker	Security	Shares	Ownership
Sept. 30, 2015	PDSB	Series C-1 Convertible Preferred Stock→ Common Stock	—	Direct
Sept. 30, 2015	PDSB	Series C-2 Convertible Preferred Stock→ Common Stock	—	Direct
Sept. 30, 2015	PDSB	Stock Option (right to purchase)→ Common Stock (38,739)	38,739	Direct
Sept. 30, 2015	PDSB	Stock Option (right to purchase)→ Common Stock (21,928)	21,928	Direct
Feb. 3, 2014	PTCT	Common Stock	5,455	Direct
Feb. 3, 2014	PTCT	Stock Option (right to buy)→ Common Stock (250)	250	Direct
Feb. 3, 2014	PTCT	Stock Option (right to buy)→ Common Stock (25,000)	25,000	Direct
May 21, 2010	GERN	Stock Option (right to buy)→ Common Stock (45,000)	45,000	Direct

Compensation (DEF 14A)

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

PTCT

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2014	$329,340	—	—	$3,816,000	$231,000	—	$35,005	$4,411,345

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