Protagonist Therapeutics, Inc. (PTGX) Insider Trading

Over the last 3 months, PTGX insiders made 0 open-market buys and 4 sales, a net sale of -$16.9M (SEC Form 4). Over the last 6 months, 250 institutions increased and 203 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
4
Net (3m)
-$16.9M
Insider trades by month Buys Sells
Feb
Mar
Apr
May
Jun
Aug
Context3-month price +44%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 12, 2026PATEL DINESH V PH Ddirector, officer: President and CEOSell65,761$149.11
Aug 12, 2026PATEL DINESH V PH Ddirector, officer: President and CEOOption65,761$21.58
Aug 12, 2026PATEL DINESH V PH Ddirector, officer: President and CEOSell34,239$148.52
Aug 12, 2026PATEL DINESH V PH Ddirector, officer: President and CEOOption34,239$21.58
Jun 25, 2026Waddill William D.directorOption9,000$16.54
Jun 25, 2026Waddill William D.directorSell9,000$117.94
Jun 11, 2026Waddill William D.directorOption6,000$16.54
Jun 11, 2026Waddill William D.directorSell9,000$107.68
Jun 11, 2026Waddill William D.directorOption3,000$11.80
Jun 1, 2026Waddill William D.directorSell9,000$99.64
Jun 1, 2026Waddill William D.directorOption9,000$11.80
May 12, 2026PATEL DINESH V PH Ddirector, officer: President and CEOOption75,000$21.58
May 12, 2026PATEL DINESH V PH Ddirector, officer: President and CEOSell75,000$100.12
May 11, 2026Giraudo BryandirectorSell36,000$100.14
May 11, 2026Giraudo BryandirectorOption12,000$6.98
May 11, 2026Giraudo BryandirectorOption24,000$6.45
May 11, 2026Giraudo BryandirectorSell12,000$100.07
May 11, 2026Giraudo BryandirectorSell6,000$100.00
May 11, 2026Giraudo BryandirectorSell5,130$100.00
Apr 21, 2026Ali Asifofficer: Chief Financial OfficerSell1,750$105.47
Mar 27, 2026SELICK HAROLD EdirectorOption24,000$12.88
Mar 27, 2026SELICK HAROLD EdirectorSell24,000$105.00
Mar 27, 2026MOLINA ARTURO MDofficer: Chief Medical OfficerOption15,000$8.04
Mar 27, 2026MOLINA ARTURO MDofficer: Chief Medical OfficerSell15,000$104.79
Mar 27, 2026Ali Asifofficer: Chief Financial OfficerOption19,500$19.19
Mar 27, 2026Ali Asifofficer: Chief Financial OfficerOption5,265$12.17
Mar 27, 2026Ali Asifofficer: Chief Financial OfficerSell24,765$104.24
Mar 25, 2026PATEL DINESH V PH Ddirector, officer: President and CEOOption59$8.58
Mar 25, 2026PATEL DINESH V PH Ddirector, officer: President and CEOOption54,641$8.58
Mar 25, 2026PATEL DINESH V PH Ddirector, officer: President and CEOSell54,641$101.00

Source: PTGX SEC Form 4 filings, latest Aug 12, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their PTGX positions over the last 6 months (SEC Form 13F).

Increased
250
New positions
121
Reduced
203
Sold out
36
Largest moves
InstitutionActionSharesFiled
BlackRock, Inc.Increased10.3MAug 7, 2026
BLACKROCK, INC.Increased9.8MMay 13, 2026
FARALLON CAPITAL MANAGEMENT LLCIncreased6.3MMay 15, 2026
FARALLON CAPITAL MANAGEMENT LLCUnchanged6.3MAug 14, 2026
UBS GROUP AGIncreased5.2MMay 5, 2026
RTW INVESTMENTS, LPIncreased5.1MAug 14, 2026
RTW INVESTMENTS, LPUnchanged5.1MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased3.6MAug 13, 2026
WELLINGTON MANAGEMENT GROUP LLPIncreased3.6MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position3.5MMay 15, 2026
WELLINGTON MANAGEMENT GROUP LLPReduced3.4MAug 14, 2026
UBS Group AGReduced3.4MAug 13, 2026
STATE STREET CORPIncreased3.3MAug 7, 2026
STATE STREET CORPReduced3.1MMay 15, 2026
JANUS HENDERSON GROUP PLCIncreased2.9MMay 18, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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