PATEL DINESH V PH D

CIK 1120477 · View on SEC EDGAR ↗

Insider

First SEC filing: Aug. 10, 2016 · Latest: Feb. 3, 2017

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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

PTGX selling Aug. 11, 2026

Insider transactions

0 buys (P) 11 sells (S) Net: $-42,337,688 + 76 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

76 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 11, 2026	PTGX	M 10b5-1	34,239	$21.58	$738,878	557,717 Direct	+6.54%	Acquired	606.2% (price as of 2026-08-20)
Aug. 11, 2026	PTGX	S 10b5-1	34,239	$148.52	$5,085,176	523,478 Direct	-6.14%	Disposed	2.6% (price as of 2026-08-20)
Aug. 11, 2026	PTGX	M	34,239	—	—	125,000 Direct	-21.50%	Disposed	(price as of 2026-08-20)
Aug. 10, 2026	PTGX	M 10b5-1	65,761	$21.58	$1,419,122	589,239 Direct	+12.56%	Acquired	606.2% (price as of 2026-08-20)
Aug. 10, 2026	PTGX	S 10b5-1	65,761	$149.11	$9,805,623	523,478 Direct	-11.16%	Disposed	2.2% (price as of 2026-08-20)
Aug. 10, 2026	PTGX	M	65,761	—	—	159,239 Direct	-29.23%	Disposed	(price as of 2026-08-20)
May 12, 2026	PTGX	M	75,000	—	—	225,000 Direct	-25.00%	Disposed	(price as of 2026-08-20)
May 12, 2026	PTGX	S 10b5-1	75,000	$100.12	$7,509,000	523,478 Direct	-12.53%	Disposed	52.2% (price as of 2026-08-20)
May 12, 2026	PTGX	M 10b5-1	75,000	$21.58	$1,618,500	598,478 Direct	+14.33%	Acquired	606.2% (price as of 2026-08-20)
May 12, 2026	PTGX	M	75,000	—	—	225,000 Direct	-25.00%	Disposed	(price as of 2026-08-20)
May 12, 2026	PTGX	S	75,000	$100.12	$7,509,000	523,478 Direct	-12.53%	Disposed	52.2% (price as of 2026-08-20)
May 12, 2026	PTGX	M	75,000	$21.58	$1,618,500	598,478 Direct	+14.33%	Acquired	606.2% (price as of 2026-08-20)
April 23, 2026	PTGX	G	1,460	—	—	523,478 Direct	-0.28%	Disposed	(price as of 2026-08-20)
March 25, 2026	PTGX	S	54,641	$101.00	$5,518,741	524,938 Direct	-9.43%	Disposed	50.9% (price as of 2026-08-20)
March 25, 2026	PTGX	M	54,641	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 25, 2026	PTGX	M	54,641	$8.58	$468,820	579,579 Direct	+10.41%	Acquired	1676.1% (price as of 2026-08-20)
March 24, 2026	PTGX	M	59	—	—	54,641 Direct	-0.11%	Disposed	(price as of 2026-08-20)
March 24, 2026	PTGX	S	59	$101.00	$5,959	524,938 Direct	-0.01%	Disposed	50.9% (price as of 2026-08-20)
March 24, 2026	PTGX	M	59	$8.58	$506	524,997 Direct	+0.01%	Acquired	1676.1% (price as of 2026-08-20)
March 23, 2026	PTGX	G	50,000	—	—	524,938 Direct	-8.70%	Disposed	(price as of 2026-08-20)
Jan. 27, 2026	PTGX	M	4,068	—	—	300,000 Direct	-1.34%	Disposed	(price as of 2026-08-20)
Jan. 27, 2026	PTGX	S	4,068	$83.19	$338,417	574,505 Direct	-0.70%	Disposed	83.2% (price as of 2026-08-20)
Jan. 27, 2026	PTGX	M	4,068	$21.58	$87,787	578,573 Direct	+0.71%	Acquired	606.2% (price as of 2026-08-20)
Jan. 26, 2026	PTGX	M	14,205	—	—	304,068 Direct	-4.46%	Disposed	(price as of 2026-08-20)
Jan. 26, 2026	PTGX	M	10,685	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 26, 2026	PTGX	S	14,205	$84.05	$1,193,930	574,505 Direct	-2.41%	Disposed	81.3% (price as of 2026-08-20)
Jan. 26, 2026	PTGX	M	14,205	$21.58	$306,544	588,710 Direct	+2.47%	Acquired	606.2% (price as of 2026-08-20)
Jan. 26, 2026	PTGX	S	10,685	$84.00	$897,540	574,505 Direct	-1.83%	Disposed	81.4% (price as of 2026-08-20)
Jan. 26, 2026	PTGX	M	10,685	$4.21	$44,984	585,190 Direct	+1.86%	Acquired	3519.7% (price as of 2026-08-20)
Jan. 23, 2026	PTGX	M	19,315	—	—	10,685 Direct	-64.38%	Disposed	(price as of 2026-08-20)
Jan. 23, 2026	PTGX	S	19,315	$84.59	$1,633,856	574,505 Direct	-3.25%	Disposed	80.2% (price as of 2026-08-20)
Jan. 23, 2026	PTGX	M	19,315	$4.21	$81,316	593,820 Direct	+3.36%	Acquired	3519.7% (price as of 2026-08-20)
Jan. 23, 2026	PTGX	G	6,000	—	—	574,505 Direct	-1.03%	Disposed	(price as of 2026-08-20)
Jan. 20, 2026	PTGX	S	34,438	$82.48	$2,840,446	580,505 Direct	-5.60%	Disposed	84.8% (price as of 2026-08-20)
Jan. 2, 2026	PTGX	A	120,200	—	—	120,200 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 2, 2026	PTGX	A	95,400	—	—	614,943 Direct	+18.36%	Acquired	(price as of 2026-08-20)
Nov. 21, 2025	PTGX	G	440	—	—	519,543 Direct	-0.08%	Disposed	(price as of 2026-08-20)
Sept. 16, 2025	PTGX	G	620	—	—	519,983 Direct	-0.12%	Disposed	(price as of 2026-08-20)
July 25, 2025	PTGX	S	10,415	$54.78	$570,534	520,603 Direct	-1.96%	Disposed	178.2% (price as of 2026-08-20)
July 23, 2025	PTGX	S	17,520	$54.79	$959,921	531,018 Direct	-3.19%	Disposed	178.1% (price as of 2026-08-20)
July 22, 2025	PTGX	S	22,065	$55.05	$1,214,678	548,538 Direct	-3.87%	Disposed	176.8% (price as of 2026-08-20)
July 21, 2025	PTGX	S	12,859	$54.86	$705,445	570,603 Direct	-2.20%	Disposed	177.8% (price as of 2026-08-20)
July 21, 2025	PTGX	A	25,000	—	—	583,462 Direct	+4.48%	Acquired	(price as of 2026-08-20)
July 16, 2025	PTGX	G	5,000	—	—	558,462 Direct	-0.89%	Disposed	(price as of 2026-08-20)
June 16, 2025	PTGX	G	685	—	—	562,905 Direct	-0.12%	Disposed	(price as of 2026-08-20)
June 13, 2025	PTGX	G	670	—	—	563,590 Direct	-0.12%	Disposed	(price as of 2026-08-20)
March 5, 2025	PTGX	M	24,000	—	—	30,000 Direct	-44.44%	Disposed	(price as of 2026-08-20)
March 5, 2025	PTGX	M	24,000	$4.21	$101,040	564,260 Direct	+4.44%	Acquired	3519.7% (price as of 2026-08-20)
Feb. 19, 2025	PTGX	S	5,359	$38.18	$204,607	540,260 Direct	-0.98%	Disposed	299.1% (price as of 2026-08-20)
Jan. 15, 2025	PTGX	F	12,636	—	—	545,619 Direct	-2.26%	Disposed	(price as of 2026-08-20)
Jan. 2, 2025	PTGX	A	181,472	—	—	181,472 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 2, 2025	PTGX	A	149,800	—	—	558,255 Direct	+36.67%	Acquired	(price as of 2026-08-20)
Nov. 26, 2024	PTGX	S	21,480	$46.25	$993,450	408,455 Direct	-5.00%	Disposed	229.5% (price as of 2026-08-20)
Nov. 25, 2024	PTGX	M	1,727	—	—	318,273 Direct	-0.54%	Disposed	(price as of 2026-08-20)
Nov. 25, 2024	PTGX	M	1,727	$21.58	$37,269	429,935 Direct	+0.40%	Acquired	606.2% (price as of 2026-08-20)
Nov. 25, 2024	PTGX	G	7,000	—	—	428,208 Direct	-1.61%	Disposed	(price as of 2026-08-20)
Nov. 25, 2024	PTGX	S	78,520	$46.96	$3,687,299	435,208 Direct	-15.28%	Disposed	224.5% (price as of 2026-08-20)
Nov. 19, 2024	PTGX	G	1,000	—	—	513,415 Direct	-0.19%	Disposed	(price as of 2026-08-20)
June 13, 2024	PTGX	G	1,000	—	—	514,415 Direct	-0.19%	Disposed	(price as of 2026-08-20)
June 7, 2024	PTGX	S 10b5-1	35,000	$35.19	$1,231,650	515,415 Direct	-6.36%	Disposed	333.0% (price as of 2026-08-20)
April 1, 2024	PTGX	S 10b5-1	25,000	$28.31	$707,750	549,590 Direct	-4.35%	Disposed	438.3% (price as of 2026-08-20)
March 1, 2024	PTGX	S 10b5-1	30,000	$31.62	$948,600	574,590 Direct	-4.96%	Disposed	381.9% (price as of 2026-08-20)
Feb. 26, 2024	PTGX	F	10,915	$29.53	$322,320	604,590 Direct	-1.77%	Disposed	416.1% (price as of 2026-08-20)
Feb. 15, 2024	PTGX	F	3,717	$28.23	$104,931	615,505 Direct	-0.60%	Disposed	439.8% (price as of 2026-08-20)
Jan. 2, 2024	PTGX	A	315,250	—	—	315,250 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 2, 2024	PTGX	A	84,875	—	—	619,222 Direct	+15.88%	Acquired	(price as of 2026-08-20)
Dec. 13, 2023	PTGX	S 10b5-1	75,000	$20.08	$1,506,000	534,347 Direct	-12.31%	Disposed	658.9% (price as of 2026-08-20)
Oct. 18, 2023	PTGX	M	6,000	—	—	54,000 Direct	-10.00%	Disposed	(price as of 2026-08-20)
Oct. 18, 2023	PTGX	M	6,000	$4.21	$25,260	609,347 Direct	+0.99%	Acquired	3519.7% (price as of 2026-08-20)
May 31, 2023	PTGX	F	12,165	$26.07	$317,142	602,946 Direct	-1.98%	Disposed	484.5% (price as of 2026-08-20)
May 31, 2023	PTGX	A	30,000	—	—	615,111 Direct	+5.13%	Acquired	(price as of 2026-08-20)
Feb. 22, 2023	PTGX	G	10,000	—	—	583,448 Direct	-1.69%	Disposed	(price as of 2026-08-20)
Jan. 16, 2023	PTGX	A	600,000	—	—	600,000 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 28, 2022	PTGX	G	3,116	—	—	598,096 Direct	-0.52%	Disposed	(price as of 2026-08-20)
Aug. 23, 2022	PTGX	M	20,000	—	—	60,000 Direct	-25.00%	Disposed	(price as of 2026-08-20)
Aug. 23, 2022	PTGX	M	20,000	$4.21	$84,200	604,048 Direct	+3.42%	Acquired	3519.7% (price as of 2026-08-20)
May 4, 2022	PTGX	G	3,000	—	—	581,048 Direct	-0.51%	Disposed	(price as of 2026-08-20)
May 4, 2022	PTGX	M	15,742	—	—	80,000 Direct	-16.44%	Disposed	(price as of 2026-08-20)
May 4, 2022	PTGX	M	15,742	$4.21	$66,274	584,048 Direct	+2.77%	Acquired	3519.7% (price as of 2026-08-20)
April 26, 2022	PTGX	M	30,000	—	—	95,742 Direct	-23.86%	Disposed	(price as of 2026-08-20)
April 26, 2022	PTGX	M	30,000	$4.21	$126,300	568,306 Direct	+5.57%	Acquired	3519.7% (price as of 2026-08-20)
April 14, 2022	PTGX	M	34,087	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
April 14, 2022	PTGX	M	34,087	$1.89	$64,424	537,847 Direct	+6.77%	Acquired	7963.0% (price as of 2026-08-20)
Feb. 28, 2022	PTGX	F	4,648	$24.28	$112,853	503,760 Direct	-0.91%	Disposed	527.6% (price as of 2026-08-20)
Feb. 15, 2022	PTGX	A	187,500	—	—	187,500 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 15, 2022	PTGX	A	31,250	—	—	508,408 Direct	+6.55%	Acquired	(price as of 2026-08-20)
Dec. 21, 2021	PTGX	S	15,000	$32.14	$482,100	477,158 Direct	-3.05%	Disposed	374.1% (price as of 2026-08-20)
Sept. 21, 2021	PTGX	M	40,000	—	—	125,742 Direct	-24.13%	Disposed	(price as of 2026-08-20)
Sept. 21, 2021	PTGX	M	40,000	$4.21	$168,400	492,158 Direct	+8.85%	Acquired	3519.7% (price as of 2026-08-20)
Feb. 26, 2021	PTGX	A	225,000	—	—	225,000 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 26, 2021	PTGX	A	25,000	—	—	451,144 Direct	+5.87%	Acquired	(price as of 2026-08-20)
Jan. 19, 2021	PTGX	M	13,000	—	—	165,742 Direct	-7.27%	Disposed	(price as of 2026-08-20)
Jan. 19, 2021	PTGX	S 10b5-1	24,846	$24.60	$611,212	426,144 Direct	-5.51%	Disposed	519.5% (price as of 2026-08-20)
Jan. 19, 2021	PTGX	M	13,000	$4.21	$54,730	450,990 Direct	+2.97%	Acquired	3519.7% (price as of 2026-08-20)
April 29, 2020	PTGX	G	2,000	—	—	437,990 Direct	-0.45%	Disposed	(price as of 2026-08-20)
March 20, 2020	PTGX	M	10,000	—	—	34,087 Direct	-22.68%	Disposed	(price as of 2026-08-20)
March 20, 2020	PTGX	M	10,000	$1.89	$18,900	439,990 Direct	+2.33%	Acquired	7963.0% (price as of 2026-08-20)
March 12, 2020	PTGX	M	18,344	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
March 12, 2020	PTGX	M	18,344	$1.16	$21,279	429,990 Direct	+4.46%	Acquired	13037.1% (price as of 2026-08-20)
Feb. 28, 2020	PTGX	A	235,000	—	—	235,000 Direct	—	Acquired	(price as of 2026-08-20)

Showing latest 100 of 136 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
Aug. 11, 2026	PTGX	Stock Option (right to buy)	Common Stock (34,239)	$21.58	Oct. 11, 2026	34,239	Disposed
Aug. 10, 2026	PTGX	Stock Option (right to buy)	Common Stock (65,761)	$21.58	Oct. 11, 2026	65,761	Disposed
May 12, 2026	PTGX	Stock Option (right to buy)	Common Stock (75,000)	$21.58	Oct. 11, 2026	75,000	Disposed
May 12, 2026	PTGX	Stock Option (right to buy)	Common Stock (75,000)	$21.58	Oct. 11, 2026	75,000	Disposed
March 25, 2026	PTGX	Stock Option (right to buy)	Common Stock (54,641)	$8.58	Aug. 14, 2028	54,641	Disposed
March 24, 2026	PTGX	Stock Option (right to buy)	Common Stock (59)	$8.58	Aug. 14, 2028	59	Disposed
Jan. 27, 2026	PTGX	Stock Option (right to buy)	Common Stock (4,068)	$21.58	Oct. 11, 2026	4,068	Disposed
Jan. 26, 2026	PTGX	Stock Option (right to buy)	Common Stock (14,205)	$21.58	Oct. 11, 2026	14,205	Disposed
Jan. 26, 2026	PTGX	Stock Option (right to buy)	Common Stock (10,685)	$4.21	April 29, 2026	10,685	Disposed
Jan. 23, 2026	PTGX	Stock Option (right to buy)	Common Stock (19,315)	$4.21	April 29, 2026	19,315	Disposed
Jan. 2, 2026	PTGX	Stock Option (right to buy)	Common Stock (120,200)	$87.18	Jan. 2, 2036	120,200	Acquired
March 5, 2025	PTGX	Stock Option (right to buy)	Common Stock (24,000)	$4.21	April 29, 2026	24,000	Disposed
Jan. 2, 2025	PTGX	Stock Option (right to buy)	Common Stock (181,472)	$38.98	Jan. 2, 2035	181,472	Acquired
Nov. 25, 2024	PTGX	Stock Option (right to buy)	Common Stock (1,727)	$21.58	Oct. 11, 2026	1,727	Disposed
Jan. 2, 2024	PTGX	Stock Option (right to buy)	Common Stock (315,250)	$23.42	Jan. 2, 2034	315,250	Acquired
Oct. 18, 2023	PTGX	Stock Option (right to buy)	Common Stock (6,000)	$4.21	April 29, 2026	6,000	Disposed
Jan. 16, 2023	PTGX	Stock Option (right to buy)	Common Stock (600,000)	$12.17	Jan. 15, 2033	600,000	Acquired
Aug. 23, 2022	PTGX	Stock Option (right to buy)	Common Stock (20,000)	$4.21	April 29, 2026	20,000	Disposed
May 4, 2022	PTGX	Stock Option (right to buy)	Common Stock (15,742)	$4.21	April 29, 2026	15,742	Disposed
April 26, 2022	PTGX	Stock Option (right to buy)	Common Stock (30,000)	$4.21	April 29, 2026	30,000	Disposed
April 14, 2022	PTGX	Stock Option (right to buy)	Common Stock (34,087)	$1.89	Oct. 22, 2024	34,087	Disposed
Feb. 15, 2022	PTGX	Stock Option (right to buy)	Common Stock (187,500)	$28.73	Feb. 14, 2032	187,500	Acquired
Sept. 21, 2021	PTGX	Stock Option (right to buy)	Common Stock (40,000)	$4.21	April 29, 2026	40,000	Disposed
Feb. 26, 2021	PTGX	Stock Option (right to buy)	Common Stock (225,000)	$23.57	Feb. 25, 2031	225,000	Acquired
Jan. 19, 2021	PTGX	Stock Option (right to buy)	Common Stock (13,000)	$4.21	April 29, 2026	13,000	Disposed
March 20, 2020	PTGX	Stock Option (right to buy)	Common Stock (10,000)	$1.89	Oct. 22, 2024	10,000	Disposed
March 12, 2020	PTGX	Stock Option (right to buy)	Common Stock (18,344)	$1.16	Oct. 28, 2025	18,344	Disposed
Feb. 28, 2020	PTGX	Stock Option (right to buy)	Common Stock (235,000)	$7.80	Feb. 27, 2030	235,000	Acquired
Nov. 26, 2019	PTGX	Stock Option (right to buy)	Common Stock (4,000)	$1.16	Oct. 28, 2025	4,000	Disposed
Feb. 28, 2019	PTGX	Stock Option (right to buy)	Common Stock (172,500)	$8.02	Feb. 27, 2029	172,500	Acquired
Jan. 11, 2019	PTGX	Stock Option (right to buy)	Common Stock (22,344)	$1.16	Oct. 28, 2025	22,344	Disposed
Aug. 15, 2018	PTGX	Stock Option (right to buy)	Common Stock (54,700)	$8.58	Aug. 14, 2028	54,700	Acquired
May 10, 2018	PTGX	Stock Option (right to buy)	Common Stock (13,516)	$1.16	Oct. 28, 2025	13,516	Disposed
April 2, 2018	PTGX	Stock Option (right to buy)	Common Stock (20,000)	$1.16	Oct. 28, 2025	20,000	Disposed
March 26, 2018	PTGX	Stock Option (right to buy)	Common Stock (11,298)	$0.87	Sept. 26, 2023	11,298	Disposed
Feb. 28, 2018	PTGX	Stock Option (right to buy)	Common Stock (150,000)	$16.95	Feb. 27, 2028	150,000	Acquired
Dec. 21, 2017	PTGX	Stock Option (right to buy)	Common Stock (8,210)	$1.89	Oct. 22, 2024	8,210	Disposed
Dec. 20, 2017	PTGX	Stock Option (right to buy)	Common Stock (1,790)	$1.89	Oct. 22, 2024	1,790	Disposed
May 9, 2017	PTGX	Stock Option (right to buy)	Common Stock (19,099)	$1.16	Oct. 28, 2025	19,099	Disposed
April 6, 2017	PTGX	Stock Option (right to buy)	Common Stock (20,000)	$1.16	Oct. 28, 2025	20,000	Disposed
March 10, 2017	PTGX	Stock Option (right to buy)	Common Stock (16,362)	$0.87	Sept. 26, 2023	16,362	Disposed
Oct. 11, 2016	PTGX	Stock Option (right to buy)	Common Stock (320,000)	$21.58	Oct. 11, 2026	320,000	Acquired

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

Initial ownership (Form 3) 5 holdings

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

Date	Ticker	Security	Shares	Ownership
Aug. 10, 2016	PTGX	Common Stock	131,976	Direct
Aug. 10, 2016	PTGX	Stock Option (right to buy)→ Common Stock (30,659)	30,659	Direct
Aug. 10, 2016	PTGX	Stock Option (right to buy)→ Common Stock (54,087)	54,087	Direct
Aug. 10, 2016	PTGX	Stock Option (right to buy)→ Common Stock (117,302)	117,302	Direct
Aug. 10, 2016	PTGX	Stock Option (right to buy)→ Common Stock (178,742)	178,742	Direct

Compensation (DEF 14A)

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

PTGX

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2019	$545,000	—	$230,575	$814,355	$354,250	—	$4,164	$1,948,344
2018	$520,000	—	$1,127,739	$1,841,928	$221,000	—	$10,844	$3,721,511
2017	$475,000	—	—	—	$309,000	—	$6,088	$790,088

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