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PTGX

Protagonist Therapeutics, Inc

NASDAQ · Healthcare · Biotechnology · US

$134.44
+4.42%
Ask drillr
0
Insider buys (3m)
7
Insider sells (3m)
-$41.4M
Net value (3m)
+0.4%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Oct 2, 2026Ali Asif · officer: Chief Financial OfficerM-Exempt9,229$39
Oct 2, 2026Ali Asif · officer: Chief Financial OfficerM-Exempt28,438$23
Oct 2, 2026Ali Asif · officer: Chief Financial OfficerSale46,034$142
Oct 2, 2026Ali Asif · officer: Chief Financial OfficerM-Exempt15,650$19
Oct 2, 2026Ali Asif · officer: Chief Financial OfficerSale12,595$142
Oct 2, 2026Ali Asif · officer: Chief Financial OfficerM-Exempt5,312$12
Sep 10, 2026PATEL DINESH V PH D · director, officer: President and CEOSale7,278$144
Sep 10, 2026PATEL DINESH V PH D · director, officer: President and CEOM-Exempt7,278$22
Sep 10, 2026PATEL DINESH V PH D · director, officer: President and CEOSale63,548$146
Sep 10, 2026PATEL DINESH V PH D · director, officer: President and CEOM-Exempt54,174$22
Sep 10, 2026PATEL DINESH V PH D · director, officer: President and CEOM-Exempt63,548$22
Sep 10, 2026PATEL DINESH V PH D · director, officer: President and CEOSale54,174$146
Aug 12, 2026PATEL DINESH V PH D · director, officer: President and CEOM-Exempt65,761$22
Aug 12, 2026PATEL DINESH V PH D · director, officer: President and CEOSale65,761$149
Aug 12, 2026PATEL DINESH V PH D · director, officer: President and CEOM-Exempt34,239$22
Aug 12, 2026PATEL DINESH V PH D · director, officer: President and CEOSale34,239$149
Jun 25, 2026Waddill William D. · directorSale9,000$118
Jun 25, 2026Waddill William D. · directorM-Exempt9,000$17
Jun 11, 2026Waddill William D. · directorM-Exempt3,000$12
Jun 11, 2026Waddill William D. · directorM-Exempt6,000$17
Jun 11, 2026Waddill William D. · directorSale9,000$108
Jun 1, 2026Waddill William D. · directorM-Exempt9,000$12
Jun 1, 2026Waddill William D. · directorSale9,000$100
May 12, 2026PATEL DINESH V PH D · director, officer: President and CEOSale75,000$100
May 12, 2026PATEL DINESH V PH D · director, officer: President and CEOM-Exempt75,000$22
May 11, 2026Giraudo Bryan · directorSale5,130$100
May 11, 2026Giraudo Bryan · directorSale6,000$100
May 11, 2026Giraudo Bryan · directorM-Exempt12,000$6.98
May 11, 2026Giraudo Bryan · directorM-Exempt24,000$6.45
May 11, 2026Giraudo Bryan · directorSale12,000$100
Institutional positioning

13F filings over the trailing two quarters

New 123Increased 248Reduced 201Sold out 38
FilerActionSharesFiled
BlackRock, Inc.Increased10,307,837Aug 7, 2026
BLACKROCK, INC.Increased9,779,369May 13, 2026
FARALLON CAPITAL MANAGEMENT LLCIncreased6,348,906May 15, 2026
FARALLON CAPITAL MANAGEMENT LLCUnchanged6,348,906Aug 14, 2026
UBS GROUP AGIncreased5,177,796May 5, 2026
RTW INVESTMENTS, LPIncreased5,061,175Aug 14, 2026
RTW INVESTMENTS, LPUnchanged5,059,053May 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased3,629,298Aug 13, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased3,599,644May 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position3,481,211May 15, 2026
WELLINGTON MANAGEMENT GROUP LLPReduced3,416,781Aug 14, 2026
UBS Group AGReduced3,399,221Aug 13, 2026
STATE STREET CORPIncreased3,321,554Sep 22, 2026
STATE STREET CORPReduced3,116,749May 15, 2026
JANUS HENDERSON GROUP PLCIncreased2,891,527May 18, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Oct 2, 2026