Question 1

Does RTW Investments own PTGX stock?

Accepted Answer

Yes. As of its Q2 2026 13F, RTW Investments holds 5,061,175 shares of PTGX (Protagonist Therapeutics), worth $620.4M.

Question 2

How many shares of PTGX does RTW Investments own?

Accepted Answer

As of its Q2 2026 13F, RTW Investments holds 5,061,175 shares of PTGX (Protagonist Therapeutics).

Question 3

What is RTW Investments' PTGX position worth?

Accepted Answer

As of its Q2 2026 13F, RTW Investments' PTGX position is worth $620.4M.

Question 4

Is RTW Investments buying or selling PTGX?

Accepted Answer

In Q2 2026, RTW Investments increased its PTGX position by 2,122 shares.

Question 5

When did RTW Investments first buy PTGX?

Accepted Answer

RTW Investments first reported PTGX in its Q3 2019 13F and has listed it in 28 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	5.1M	+0.0%	$620.4M	5.3%	$122.58	61
2026-Q1	Unchanged	5.1M	0.0%	$533.2M	5.3%	$105.40	0
2025-Q4	Decreased	5.1M	-12.1%	$441.9M	4.4%	$87.34	0
2025-Q3	Unchanged	5.8M	0.0%	$382.4M	4.7%	$66.43	0
2025-Q2	Increased	5.8M	+0.6%	$318.1M	4.5%	$55.27	57
2025-Q1	Increased	5.7M	+4.0%	$276.6M	4.2%	$48.36	59
2024-Q4	Increased	5.5M	+1.3%	$212.2M	3.2%	$38.60	57
2024-Q3	Increased	5.4M	+2.6%	$244.2M	3.5%	$45.00	58