Question 1

Does Adage Capital Partners GP own PRAX stock?

Accepted Answer

Yes. As of its Q2 2026 13F, Adage Capital Partners GP holds 1,015,480 shares of PRAX (Praxis Precision Medicines), worth $340M.

Question 2

How many shares of PRAX does Adage Capital Partners GP own?

Accepted Answer

As of its Q2 2026 13F, Adage Capital Partners GP holds 1,015,480 shares of PRAX (Praxis Precision Medicines).

Question 3

What is Adage Capital Partners GP's PRAX position worth?

Accepted Answer

As of its Q2 2026 13F, Adage Capital Partners GP's PRAX position is worth $340M.

Question 4

Is Adage Capital Partners GP buying or selling PRAX?

Accepted Answer

In Q2 2026, Adage Capital Partners GP increased its PRAX position by 199,741 shares (+24.5%).

Question 5

When did Adage Capital Partners GP first buy PRAX?

Accepted Answer

Adage Capital Partners GP already held PRAX in its Q4 2023 13F, the earliest on record, and has listed it in 11 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	1M	+24.5%	$340M	0.5%	$334.79	45
2026-Q1	Decreased	815,739	-15.5%	$262.8M	0.4%	$318.22	0
2025-Q4	Decreased	965,313	-59.3%	$284.5M	0.4%	$297.02	0
2025-Q3	Increased	2.4M	+20.2%	$125.8M	0.2%	$52.38	43
2025-Q2	Increased	2M	+13.3%	$83M	0.1%	$43.00	40
2025-Q1	Increased	1.7M	+188.1%	$66M	0.1%	$38.66	57
2024-Q4	Decreased	605,010	-29.2%	$46.6M	0.1%	$76.26	0
2024-Q3	Decreased	854,083	-24.7%	$49.1M	0.1%	$57.83	0