PTGX

Protagonist Therapeutics, Inc

Pharmaceutical PreparationsNasdaqLarge accelerated filer

Total Trades

Buys

Sells

Largest Trade

N/A

Insiders

Institutional Funds

260

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Williams Lewis T	Director	SELL	$1M+	18K	$82.42	Feb 18, 2026
Williams Lewis T	Director	EXERCISE	$100K–$500K	18K	$10.84	Feb 18, 2026
Waddill William D.	Director	SELL	$1M+	20K	$83.68	Feb 6, 2026
Waddill William D.	Director	EXERCISE	$100K–$500K	20K	$8.31	Feb 6, 2026
PATEL DINESH V PH D	President and CEO	EXERCISE	$500K+	48K	$10.79	Jan 28, 2026
PATEL DINESH V PH D	President and CEO	SELL	$1M+	48K	$84.18	Jan 28, 2026
Ali Asif	CFO	EXERCISE	$100K–$500K	28K	$16.18	Jan 28, 2026
Ali Asif	CFO	SELL	$1M+	46K	$83.13	Jan 28, 2026
MOLINA ARTURO MD	Chief Medical Offi…	EXERCISE	$50K–$100K	10K	$8.04	Jan 28, 2026
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$1M+	23K	$82.30	Jan 28, 2026
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$500K+	10K	$82.48	Jan 21, 2026
PATEL DINESH V PH D	President and CEO	SELL	$1M+	34K	$82.48	Jan 21, 2026
Ali Asif	CFO	SELL	$500K+	9K	$82.48	Jan 21, 2026
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$100K–$500K	3K	$84.77	Nov 19, 2025
Waddill William D.	Director	SELL	$100K–$500K	4K	$64.25	Sep 25, 2025
Waddill William D.	Director	SELL	$100K–$500K	4K	$59.25	Aug 29, 2025
PATEL DINESH V PH D	President and CEO	SELL	$500K+	10K	$54.78	Jul 28, 2025
PATEL DINESH V PH D	President and CEO	SELL	$1M+	52K	$54.92	Jul 23, 2025
PATEL DINESH V PH D	President and CEO	GRANT	N/A	25K	—	Jul 23, 2025
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$1M+	20K	$56.27	Jun 11, 2025
MOLINA ARTURO MD	Chief Medical Offi…	EXERCISE	$100K–$500K	20K	$8.04	Jun 11, 2025
Ali Asif	CFO	SELL	$50K–$100K	2K	$46.00	Apr 23, 2025
Waddill William D.	Director	SELL	$100K–$500K	4K	$54.25	Mar 19, 2025
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$1M+	31K	$55.74	Mar 14, 2025
MOLINA ARTURO MD	Chief Medical Offi…	EXERCISE	$500K+	31K	$24.48	Mar 14, 2025
Ali Asif	CFO	SELL	$1M+	25K	$58.73	Mar 14, 2025
Ali Asif	CFO	EXERCISE	$100K–$500K	25K	$14.90	Mar 14, 2025
PATEL DINESH V PH D	President and CEO	SELL	$100K–$500K	5K	$38.18	Feb 20, 2025
MOLINA ARTURO MD	Chief Medical Offi…	SELL	N/A	4K	—	Jan 17, 2025
Ali Asif	CFO	SELL	N/A	4K	—	Jan 17, 2025
MOLINA ARTURO MD	Chief Medical Offi…	EXERCISE	$100K–$500K	32K	$8.04	Nov 28, 2024
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$1M+	32K	$44.86	Nov 28, 2024
Gupta Suneel	Chief Development …	SELL	$1M+	123K	$45.96	Nov 28, 2024
Gupta Suneel	Chief Development …	EXERCISE	$1M+	205K	$8.40	Nov 28, 2024
PATEL DINESH V PH D	President and CEO	EXERCISE	$15K–$50K	2K	$21.58	Nov 28, 2024
PATEL DINESH V PH D	President and CEO	SELL	$1M+	100K	$46.81	Nov 28, 2024
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$50K–$100K	2K	$40.98	Nov 19, 2024
Waddill William D.	Director	SELL	$100K–$500K	8K	$35.00	Jun 11, 2024
Waddill William D.	Director	EXERCISE	$100K–$500K	8K	$12.88	Jun 11, 2024
PATEL DINESH V PH D	President and CEO	SELL	$1M+	35K	$35.19	Jun 11, 2024
Ali Asif	CFO	SELL	$15K–$50K	1K	$25.11	Apr 20, 2024
PATEL DINESH V PH D	President and CEO	SELL	$500K+	25K	$28.31	Apr 3, 2024
PATEL DINESH V PH D	President and CEO	SELL	$500K+	30K	$31.62	Mar 2, 2024
Waddill William D.	Director	SELL	$100K–$500K	13K	$31.34	Mar 2, 2024
Waddill William D.	Director	EXERCISE	$50K–$100K	13K	$6.09	Mar 2, 2024
Ali Asif	CFO	EXERCISE	$100K–$500K	12K	$12.17	Mar 2, 2024
Ali Asif	CFO	SELL	$500K+	24K	$31.60	Mar 2, 2024
MOLINA ARTURO MD	Chief Medical Offi…	GRANT	N/A	26K	—	Jan 5, 2024
MOLINA ARTURO MD	Chief Medical Offi…	SELL	$15K–$50K	2K	$16.24	Jan 5, 2024

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Institutional Ownership

13F filings as of Dec 31, 2025 · 260 funds holding

Fund	Shares	Value	Type
STATE STREET CORP	3.2M	$1M+	SH
JOHNSON & JOHNSON	2.4M	$1M+	SH
PERCEPTIVE ADVISORS LLC	1.4M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	1.3M	$1M+	SH
ADAR1 Capital Management, LLC	1.0M	$1M+	SH
ADAR1 Capital Management, LLC	1.0M	$1M+	SH
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A.	572K	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	557K	$1M+	SH
AMERICAN CENTURY COMPANIES INC	535K	$1M+	SH
Pictet Asset Management Holding SA	530K	$1M+	SH
Clearbridge Investments, LLC	490K	$1M+	SH
DIMENSIONAL FUND ADVISORS LP	372K	$1M+	SH
PRINCIPAL FINANCIAL GROUP INC	344K	$1M+	SH
JENNISON ASSOCIATES LLC	331K	$1M+	SH
GOLDMAN SACHS GROUP INC	306K	$1M+	SH
NEXTBio Capital Management LP	230K	$1M+	SH
KENNEDY CAPITAL MANAGEMENT LLC	221K	$1M+	SH
Skandinaviska Enskilda Banken AB (publ)	206K	$1M+	SH
PUBLIC SECTOR PENSION INVESTMENT BOARD	203K	$1M+	SH
Alyeska Investment Group, L.P.	200K	$1M+	SH