$PTGX

$140.32 +$1.89 (1.37%) Close

$PTGX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 64.7M shares outstanding

Who owns PTGX?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 66.6%

BlackRock, Inc. 15.9% · Farallon Capital Management, L.L.C. 9.8%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

342

+22 vs last qtr

Net shares bought

−3.0M

by institutions in Q2 2026

New / sold out

62 / 40

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Jupiter Topco LLC NEW +2.1M
BlackRock, Inc. +528.5K

Biggest sellers in Q2 2026

Janus Henderson Group PLC SOLD OUT −2.9M
UBS Group AG −1.8M

Who is planning to sell?

Notices of proposed sale, last 12 months

$93.1M

24 notices from 12 people

Shares covered

833.1K

1.29% of the company

Arranged in advance

56%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Dinesh Patel Ceo $55.9M
Asif Ali Officer $14.7M

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2020–FY2025

+84.8%

+13.07% a year

Each share's claim on the business

−45.9%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $161M

over 6 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years63% 3–5 years9% 1–3 years16% Under 1 year12%

Quarterly turnover

11.4%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting PTGX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	10.3M	15.93%	+528.5K (+5.4%)	≤2021	0.0%
Shares held by quarter Peak holding10.3M (Q2'26) Change over 8 quarters+83.5K Share of the company15.930% BlackRock, Inc.'s full portfolio →
FC Farallon Capital Management, L.L.C.	6.3M	9.81%	Unchanged	≤2021	3.6%
Shares held by quarter Peak holding6.3M (Q1'26) Change over 8 quarters+487.9K Share of the company9.810% Farallon Capital Management, L.L.C.'s full portfolio →

BlackRock, Inc.

10.3M

% of company

15.93%

Change vs last qtr

+528.5K (+5.4%)

Held since

≤2021

Farallon Capital Management, L.L.C.

6.3M

% of company

9.81%

Change vs last qtr

Unchanged

Held since

≤2021

28 more super investors behind a free account

See every manager holding Protagonist Therapeutics, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting PTGX on Form N-PORT; together they hold 50.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$446M	3.6M	5.63%	0.40%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$251M	2.0M	3.16%	0.01%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$446M

% of company

5.63%

% of the fund

0.40%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$251M

% of company

3.16%

% of the fund

0.01%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Protagonist Therapeutics, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
PD Patel Dinesh V PH D Insider	523.0K	0.81%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.810% Patel Dinesh V PH D's insider activity →
GS Gupta Suneel Insider	267.4K	0.41%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.410% Gupta Suneel's insider activity →

Patel Dinesh V PH D

Insider

523.0K

% of company

0.81%

Change vs last qtr

—

Held since

—

Gupta Suneel

Insider

267.4K

% of company

0.41%

Change vs last qtr

—

Held since

—

7 more holders behind a free account

See every insider and 5%+ holder of Protagonist Therapeutics, Inc..

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