Arturo Molina MD

Insider

First SEC filing: Sept. 26, 2018 · Latest: Sept. 26, 2018

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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

Insider transactions

0 buys (P) 6 sells (S) Net: $-4,491,766 + 58 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

58 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
March 26, 2026	PTGX	M	15,000	—	—	50,971 Direct	-22.74%	Disposed	(price as of 2026-08-21)
March 26, 2026	PTGX	S	15,000	$104.79	$1,571,850	84,115 Direct	-15.13%	Disposed	44.9% (price as of 2026-08-21)
March 26, 2026	PTGX	M	15,000	$8.04	$120,600	99,115 Direct	+17.83%	Acquired	1788.7% (price as of 2026-08-21)
Jan. 27, 2026	PTGX	M	5,000	—	—	65,971 Direct	-7.05%	Disposed	(price as of 2026-08-21)
Jan. 27, 2026	PTGX	S	5,000	$82.00	$410,000	84,115 Direct	-5.61%	Disposed	85.2% (price as of 2026-08-21)
Jan. 27, 2026	PTGX	M	5,000	$8.04	$40,200	89,115 Direct	+5.94%	Acquired	1788.7% (price as of 2026-08-21)
Jan. 26, 2026	PTGX	M	5,000	—	—	70,971 Direct	-6.58%	Disposed	(price as of 2026-08-21)
Jan. 26, 2026	PTGX	S	5,000	$82.28	$411,400	84,115 Direct	-5.61%	Disposed	84.6% (price as of 2026-08-21)
Jan. 26, 2026	PTGX	M	5,000	$8.04	$40,200	89,115 Direct	+5.94%	Acquired	1788.7% (price as of 2026-08-21)
Jan. 23, 2026	PTGX	S	13,151	$82.42	$1,083,905	84,115 Direct	-13.52%	Disposed	84.2% (price as of 2026-08-21)
Jan. 20, 2026	PTGX	S	9,514	$82.48	$784,715	97,266 Direct	-8.91%	Disposed	84.1% (price as of 2026-08-21)
Jan. 2, 2026	PTGX	A	32,000	—	—	32,000 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 2, 2026	PTGX	A	25,600	—	—	106,780 Direct	+31.53%	Acquired	(price as of 2026-08-21)
Nov. 17, 2025	PTGX	S	2,712	$84.77	$229,896	81,180 Direct	-3.23%	Disposed	79.1% (price as of 2026-08-21)
June 10, 2025	PTGX	M	10,000	—	—	75,971 Direct	-11.63%	Disposed	(price as of 2026-08-21)
June 10, 2025	PTGX	S	10,000	$57.03	$570,300	83,892 Direct	-10.65%	Disposed	166.3% (price as of 2026-08-21)
June 10, 2025	PTGX	M	10,000	$8.04	$80,400	93,892 Direct	+11.92%	Acquired	1788.7% (price as of 2026-08-21)
June 9, 2025	PTGX	M	10,000	—	—	85,971 Direct	-10.42%	Disposed	(price as of 2026-08-21)
June 9, 2025	PTGX	S	10,000	$55.51	$555,100	83,892 Direct	-10.65%	Disposed	173.6% (price as of 2026-08-21)
June 9, 2025	PTGX	M	10,000	$8.04	$80,400	93,892 Direct	+11.92%	Acquired	1788.7% (price as of 2026-08-21)
March 13, 2025	PTGX	M	2,077	—	—	47,785 Direct	-4.17%	Disposed	(price as of 2026-08-21)
March 13, 2025	PTGX	M	28,437	—	—	69,063 Direct	-29.17%	Disposed	(price as of 2026-08-21)
March 13, 2025	PTGX	S	30,514	$55.74	$1,700,850	83,892 Direct	-26.67%	Disposed	172.4% (price as of 2026-08-21)
March 13, 2025	PTGX	M	2,077	$38.98	$80,961	114,406 Direct	+1.85%	Acquired	289.6% (price as of 2026-08-21)
March 13, 2025	PTGX	M	28,437	$23.42	$665,995	112,329 Direct	+33.90%	Acquired	548.4% (price as of 2026-08-21)
Jan. 16, 2025	PTGX	S	3,252	—	—	83,892 Direct	-3.73%	Disposed	(price as of 2026-08-21)
Jan. 16, 2025	PTGX	S	388	—	—	87,144 Direct	-0.44%	Disposed	(price as of 2026-08-21)
Jan. 2, 2025	PTGX	A	49,862	—	—	49,862 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 2, 2025	PTGX	A	41,088	—	—	87,532 Direct	+88.47%	Acquired	(price as of 2026-08-21)
Nov. 27, 2024	PTGX	M	16,000	—	—	95,971 Direct	-14.29%	Disposed	(price as of 2026-08-21)
Nov. 27, 2024	PTGX	M	10,000	—	—	111,971 Direct	-8.20%	Disposed	(price as of 2026-08-21)
Nov. 27, 2024	PTGX	S	16,000	$44.83	$717,280	46,444 Direct	-25.62%	Disposed	238.7% (price as of 2026-08-21)
Nov. 27, 2024	PTGX	M	16,000	$8.04	$128,640	62,444 Direct	+34.45%	Acquired	1788.7% (price as of 2026-08-21)
Nov. 27, 2024	PTGX	S	10,000	$44.50	$445,000	46,444 Direct	-17.72%	Disposed	241.2% (price as of 2026-08-21)
Nov. 27, 2024	PTGX	M	10,000	$8.04	$80,400	56,444 Direct	+21.53%	Acquired	1788.7% (price as of 2026-08-21)
Nov. 26, 2024	PTGX	M	5,529	—	—	121,971 Direct	-4.34%	Disposed	(price as of 2026-08-21)
Nov. 26, 2024	PTGX	S	5,529	$45.60	$252,122	46,444 Direct	-10.64%	Disposed	233.0% (price as of 2026-08-21)
Nov. 26, 2024	PTGX	M	5,529	$8.04	$44,453	51,973 Direct	+11.90%	Acquired	1788.7% (price as of 2026-08-21)
Nov. 15, 2024	PTGX	S	1,906	$40.98	$78,108	46,444 Direct	-3.94%	Disposed	270.5% (price as of 2026-08-21)
Jan. 16, 2024	PTGX	F	427	$24.63	$10,517	48,350 Direct	-0.88%	Disposed	516.5% (price as of 2026-08-21)
Jan. 2, 2024	PTGX	A	97,500	—	—	97,500 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 2, 2024	PTGX	A	26,250	—	—	48,777 Direct	+116.53%	Acquired	(price as of 2026-08-21)
Nov. 15, 2023	PTGX	S	1,848	$16.24	$30,012	22,527 Direct	-7.58%	Disposed	835.0% (price as of 2026-08-21)
Jan. 16, 2023	PTGX	A	18,750	—	—	18,750 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 16, 2023	PTGX	A	3,125	—	—	24,375 Direct	+14.71%	Acquired	(price as of 2026-08-21)
Nov. 15, 2022	PTGX	A	127,500	—	—	127,500 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 15, 2022	PTGX	A	21,250	—	—	21,250 Direct	—	Acquired	(price as of 2026-08-21)
March 5, 2022	STRO	M	12,500	—	—	37,500 Direct	-25.00%	Disposed	(price as of 2026-08-21)
March 5, 2022	STRO	F	4,355	$8.17	$35,580	37,736 Direct	-10.35%	Disposed	-73.4% (price as of 2026-08-21)
March 5, 2022	STRO	M	12,500	—	—	42,091 Direct	+42.24%	Acquired	(price as of 2026-08-21)
March 4, 2022	STRO	A	39,000	—	—	39,000 Direct	—	Acquired	(price as of 2026-08-21)
March 4, 2022	STRO	A	52,000	—	—	52,000 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 29, 2022	STRO	M	5,250	—	—	10,500 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Jan. 29, 2022	STRO	F	2,151	$10.39	$22,349	29,591 Direct	-6.78%	Disposed	-79.0% (price as of 2026-08-21)
Jan. 29, 2022	STRO	M	5,250	—	—	31,742 Direct	+19.82%	Acquired	(price as of 2026-08-21)
Sept. 24, 2021	STRO	M	8,609	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Sept. 24, 2021	STRO	F	2,976	$19.23	$57,228	26,492 Direct	-10.10%	Disposed	-88.7% (price as of 2026-08-21)
Sept. 24, 2021	STRO	M	8,609	—	—	29,468 Direct	+41.27%	Acquired	(price as of 2026-08-21)
March 5, 2021	STRO	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-21)
March 5, 2021	STRO	A	60,000	—	—	60,000 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 29, 2021	STRO	M	5,250	—	—	15,750 Direct	-25.00%	Disposed	(price as of 2026-08-21)
Jan. 29, 2021	STRO	F	2,107	$22.15	$46,670	20,859 Direct	-9.17%	Disposed	-90.2% (price as of 2026-08-21)
Jan. 29, 2021	STRO	M	5,250	—	—	22,966 Direct	+29.63%	Acquired	(price as of 2026-08-21)
Sept. 25, 2020	STRO	M	8,609	—	—	8,609 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Sept. 25, 2020	STRO	F	2,976	$10.30	$30,653	17,716 Direct	-14.38%	Disposed	-78.9% (price as of 2026-08-21)
Sept. 25, 2020	STRO	M	8,609	—	—	20,692 Direct	+71.25%	Acquired	(price as of 2026-08-21)
May 14, 2020	STRO	P	6,451	$7.75	$49,995	12,083 Direct	+114.54%	Acquired	-71.9% (price as of 2026-08-21)
Jan. 29, 2020	STRO	A	21,000	—	—	21,000 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 29, 2020	STRO	A	47,500	—	—	47,500 Direct	—	Acquired	(price as of 2026-08-21)
Sept. 26, 2019	STRO	M	8,608	—	—	17,218 Direct	-33.33%	Disposed	(price as of 2026-08-21)
Sept. 26, 2019	STRO	F	2,976	$9.74	$28,986	5,632 Direct	-34.57%	Disposed	-77.6% (price as of 2026-08-21)
Sept. 26, 2019	STRO	M	8,608	—	—	8,608 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 29, 2019	STRO	A	47,500	—	—	47,500 Direct	—	Acquired	(price as of 2026-08-21)
Sept. 26, 2018	STRO	A	25,826	—	—	25,826 Direct	—	Acquired	(price as of 2026-08-21)
Sept. 26, 2018	STRO	A	154,958	—	—	154,958 Direct	—	Acquired	(price as of 2026-08-21)

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
March 26, 2026	PTGX	Stock Option (right to buy)	Common Stock (15,000)	$8.04	Nov. 15, 2032	15,000	Disposed
Jan. 27, 2026	PTGX	Stock Option (right to buy)	Common Stock (5,000)	$8.04	Nov. 15, 2032	5,000	Disposed
Jan. 26, 2026	PTGX	Stock Option (right to buy)	Common Stock (5,000)	$8.04	Nov. 15, 2032	5,000	Disposed
Jan. 2, 2026	PTGX	Stock Option (right to buy)	Common Stock (32,000)	$87.18	Jan. 2, 2036	32,000	Acquired
June 10, 2025	PTGX	Stock Option (right to buy)	Common Stock (10,000)	$8.04	Nov. 15, 2032	10,000	Disposed
June 9, 2025	PTGX	Stock Option (right to buy)	Common Stock (10,000)	$8.04	Nov. 15, 2032	10,000	Disposed
March 13, 2025	PTGX	Stock Option (right to buy)	Common Stock (2,077)	$38.98	Jan. 2, 2035	2,077	Disposed
March 13, 2025	PTGX	Stock Option (right to buy)	Common Stock (28,437)	$23.42	Jan. 2, 2034	28,437	Disposed
Jan. 2, 2025	PTGX	Stock Option (right to buy)	Common Stock (49,862)	$38.98	Jan. 2, 2035	49,862	Acquired
Nov. 27, 2024	PTGX	Stock Option (right to buy)	Common Stock (16,000)	$8.04	Nov. 15, 2032	16,000	Disposed
Nov. 27, 2024	PTGX	Stock Option (right to buy)	Common Stock (10,000)	$8.04	Nov. 15, 2032	10,000	Disposed
Nov. 26, 2024	PTGX	Stock Option (right to buy)	Common Stock (5,529)	$8.04	Nov. 15, 2032	5,529	Disposed
Jan. 2, 2024	PTGX	Stock Option (right to buy)	Common Stock (97,500)	$23.42	Jan. 2, 2034	97,500	Acquired
Jan. 16, 2023	PTGX	Stock Option (right to buy)	Common Stock (18,750)	$12.17	Jan. 15, 2033	18,750	Acquired
Nov. 15, 2022	PTGX	Stock Option (right to buy)	Common Stock (127,500)	$8.04	Nov. 15, 2032	127,500	Acquired
March 5, 2022	STRO	Restricted Stock Unit (RSU)	Common Stock (12,500)	—	March 5, 2025	12,500	Disposed
March 4, 2022	STRO	Restricted Stock Unit (RSU)	Common Stock (39,000)	—	March 4, 2026	39,000	Acquired
March 4, 2022	STRO	Stock Option (right to buy Common Stock)	Common Stock (52,000)	$8.17	March 3, 2032	52,000	Acquired
Jan. 29, 2022	STRO	Restricted Stock Unit (RSU)	Common Stock (5,250)	—	Jan. 29, 2025	5,250	Disposed
Sept. 24, 2021	STRO	Restricted Stock Unit (RSU)	Common Stock (8,609)	—	Sept. 26, 2021	8,609	Disposed
March 5, 2021	STRO	Restricted Stock Unit (RSU)	Common Stock (50,000)	—	March 5, 2025	50,000	Acquired
March 5, 2021	STRO	Stock Option (right to buy Common Stock)	Common Stock (60,000)	$21.11	March 4, 2031	60,000	Acquired
Jan. 29, 2021	STRO	Restricted Stock Unit (RSU)	Common Stock (5,250)	—	Jan. 29, 2024	5,250	Disposed
Sept. 25, 2020	STRO	Restricted Stock Unit (RSU)	Common Stock (8,609)	—	Sept. 26, 2021	8,609	Disposed
Jan. 29, 2020	STRO	Restricted Stock Unit (RSU)	Common Stock (21,000)	—	Jan. 29, 2024	21,000	Acquired
Jan. 29, 2020	STRO	Stock Option (right to buy Common Stock)	Common Stock (47,500)	$10.09	Jan. 29, 2030	47,500	Acquired
Sept. 26, 2019	STRO	Restricted Stock Unit (RSU)	Common Stock (8,608)	—	Sept. 26, 2021	8,608	Disposed
Jan. 29, 2019	STRO	Stock Option (right to buy Common Stock)	Common Stock (47,500)	$10.45	Jan. 28, 2029	47,500	Acquired
Sept. 26, 2018	STRO	Restricted Stock Unit (RSU)	Common Stock (25,826)	—	Sept. 25, 2021	25,826	Acquired
Sept. 26, 2018	STRO	Stock Option (right to buy Common Stock)	Common Stock (154,958)	$15.00	Sept. 25, 2028	154,958	Acquired

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

Initial ownership (Form 3) 2 holdings

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

Date	Ticker	Security	Shares	Ownership
Sept. 26, 2018	STRO	No securities beneficially held	0	Direct
Sept. 26, 2018	STRO	Stock Option (right to buy Common Stock)→ Common Stock (98,070)	98,070	Direct

Compensation (DEF 14A)

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

PTGX

M.D., M.S., F.A.C.P. Chief Medical Officer

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2024	$550,000	$66,000	$614,775	$1,892,514	$330,000	—	$10,912	$3,464,201

STRO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2021	$481,113	—	—	—	$202,068	—	$8,646	$2,645,527

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