Protagonist Therapeutics, Inc

PTGXNASDAQ

$140.63+0.57 (+0.41% today)

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Protagonist Therapeutics, Inc price and activity chart data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (+119.3%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	15.94%	$1.26B	0.02%	Not reported
Farallon Capital Management, L.L.C.	9.82%	$778M	3.59%	Not reported
RTW Investments, LP	7.83%	$620M	5.30%	Add 0.04%
Vanguard Portfolio Management LLC	5.61%	$445M	0.02%	Not reported
Wellington Management Group LLP	5.28%	$419M	0.07%	Reduce 5.08%
UBS Group AG	5.26%	$417M	0.05%	Not reported
State Street Corp	5.14%	$407M	0.01%	Not reported
Vanguard Capital Management LLC	4.41%	$350M	0.01%	Not reported
Johnson & Johnson	3.79%	$300M	37.59%	Not reported
Invesco Ltd.	3.62%	$287M	0.02%	Not reported
Jupiter Topco LLC	3.29%	$261M	0.11%	Not reported
Geode Capital Management, LLC	2.69%	$213M	0.01%	Not reported
Woodline Partners LP	2.19%	$173M	0.54%	Not reported
Bank of America Corp	2.05%	$162M	0.01%	Not reported
Jennison Associates LLC	1.78%	$141M	0.08%	Add 7.43%
Perceptive Advisors LLC	1.52%	$120M	1.81%	Reduce 20.23%
ADAR1 Capital Management, LLC	1.49%	$118M	5.39%	Reduce 3.35%
Morgan Stanley	1.40%	$111M	0.01%	Not reported
Alyeska Investment Group, L.P.	1.38%	$109M	0.28%	Not reported
Hood River Capital Management LLC	1.36%	$108M	0.78%	Add 6.45%
Goldman Sachs Group Inc	1.26%	$99.6M	0.01%	Not reported
Driehaus Capital Management LLC	1.13%	$89.6M	0.52%	Add 1.40%
Clearbridge Investments, LLC	1.12%	$88.9M	0.07%	Not reported
FMR LLC	1.04%	$82.4M	0.00%	Not reported
Northern Trust Corp	1.03%	$81.7M	0.01%	Not reported
American Century Companies Inc	0.93%	$73.4M	0.03%	Not reported
Charles Schwab Investment Management Inc	0.90%	$71.6M	0.01%	Not reported
Voya Investment Management LLC	0.88%	$70.1M	0.06%	Not reported
Pictet Asset Management Holding SA	0.88%	$69.6M	0.07%	Reduce 2.25%
Vanguard Fiduciary Trust Co	0.68%	$53.7M	0.01%	Not reported
Lord, Abbett & Co. LLC	0.62%	$48.9M	0.14%	Add 144.09%
Principal Financial Group Inc	0.60%	$47.2M	0.02%	Not reported
Bank of New York Mellon Corp	0.55%	$43.9M	0.01%	Not reported
Neuberger Berman Group LLC	0.47%	$37.1M	0.02%	Not reported
BNP Paribas Financial Markets	0.47%	$37M	0.01%	Not reported
683 Capital Management, LLC	0.45%	$35.5M	1.75%	Reduce 18.31%
Nuveen, LLC	0.44%	$34.8M	0.01%	Not reported
Stephens Investment Management Group LLC	0.44%	$34.5M	0.37%	New Not reported
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	0.40%	$31.9M	0.03%	Reduce 15.05%
Eagle Health Investments LP	0.38%	$30.4M	5.05%	Add 38.48%
NEXTBio Capital Management LP	0.34%	$26.9M	12.37%	Reduce 4.48%
Segall Bryant & Hamill, LLC	0.33%	$26.3M	0.31%	Add 0.94%
SEB Asset Management AB	0.32%	$25.7M	0.10%	Reduce 9.66%
Duquesne Family Office LLC	0.32%	$25.6M	0.49%	Add 30.81%
Public Sector Pension Investment Board	0.32%	$25.5M	0.07%	Reduce 1.23%
Citigroup Inc	0.31%	$24.4M	0.01%	Not reported
JPMorgan Chase & Co	0.28%	$22.6M	0.00%	Not reported
Dimensional Fund Advisors LP	0.28%	$21.8M	0.00%	Not reported
Affinity Asset Advisors, LLC	0.27%	$21.1M	0.95%	Not reported
Fisher Asset Management, LLC	0.26%	$20.9M	0.01%	Reduce 1.98%

50 of 321 holders

Activity score

Premium

100

WEAK

STRONG

Unlock

AI Activity Analysis

Premium

Coming soonAI reads of insider, institutional and company activity will appear here for Premium accounts.

Historical Activity Patterns

Premium

Historical Activity PatternsHistorical periods where multiple activity categories converged, with subsequent market performance shown for context.Unlock