Question 1

Does Adage Capital Partners GP own KPTI stock?

Accepted Answer

Yes. As of its Q2 2026 13F, Adage Capital Partners GP holds 1,521,322 shares of KPTI (Karyopharm Therapeutics), worth $14.9M.

Question 2

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

Accepted Answer

As of its Q2 2026 13F, Adage Capital Partners GP holds 1,521,322 shares of KPTI (Karyopharm Therapeutics).

Question 3

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

Accepted Answer

As of its Q2 2026 13F, Adage Capital Partners GP's KPTI position is worth $14.9M.

Question 4

Is Adage Capital Partners GP buying or selling KPTI?

Accepted Answer

In Q2 2026, Adage Capital Partners GP reduced its KPTI position by 285,000 shares (-15.8%).

Question 5

When did Adage Capital Partners GP first buy KPTI?

Accepted Answer

Adage Capital Partners GP already held KPTI in its Q1 2025 13F, the earliest on record, and has listed it in 6 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	1.5M	-15.8%	$14.9M	0.0%	$9.77	0
2026-Q1	Increased	1.8M	+328.7%	$10.1M	0.0%	$5.57	45
2025-Q4	Unchanged	421,322	0.0%	$3.1M	0.0%	$7.36	0
2025-Q3	Unchanged	421,322	0.0%	$2.8M	0.0%	$6.54	0
2025-Q2	Unchanged	421,322	0.0%	$1.8M	0.0%	$4.31	0
2025-Q1	New	421,322	-	$1.6M	0.0%	$3.74	35

KPTI6 quarters

KPTI
6 quarters