Jane Street’s Catalyst Pharmaceutical CPRX Stock Holding History

Jane Street’s Portfolio CPRX Stock Details CPRX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$409K	Buy	+16,500	New	+$393K	﹤0.01%	8511
2025 Q4	–	Sell	-12,300	Closed	-$242K	–	11282
2025 Q3	$242K	Sell	12,300 -30,500	-71%	-$627K	﹤0.01%	9316
2025 Q2	$929K	Buy	+42,800	New	+$1.01M	﹤0.01%	5752
2024 Q2	–	Sell	-20,700	Closed	-$330K	–	9465
2024 Q1	$330K	Buy	+20,700	New	+$312K	﹤0.01%	7405
2023 Q4	–	Sell	-13,900	Closed	-$162K	–	9247
2023 Q3	$162K	Buy	+13,900	New	+$186K	﹤0.01%	7744
2022 Q4	–	Sell	-68,800	Closed	-$883K	–	9259
2022 Q3	$883K	Buy	+68,800	New	+$815K	﹤0.01%	5635
2021 Q4	–	Sell	-11,300	Closed	-$60K	–	10145
2021 Q3	$60K	Sell	11,300 -9,300	-45%	-$50.9K	﹤0.01%	9488
2021 Q2	$118K	Buy	+20,600	New	+$106K	﹤0.01%	9186

Other funds holding CPRX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Jane Street's CPRX Position: Q1 2026 in Review

Jane Street increased its Catalyst Pharmaceutical (CPRX) stake by 105% in Q1 2026, buying an estimated $6.65M and bringing the position to 545,227 shares worth $13.5M. The position accounts for ﹤0.01% of the portfolio, ranked #2175.

Jane Street first reported a position in CPRX in Q3 2013 and has held it in 30 quarters since. 380 funds tracked by Wall St. Rank hold CPRX as of Q1 2026.

Jane Street held 545,227 shares of Catalyst Pharmaceutical worth $13.5M as of Q1 2026.
Jane Street bought 278,974 Catalyst Pharmaceutical shares in Q1 2026, an estimated $6.65M.
Catalyst Pharmaceutical made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #2175 holding.
Jane Street first reported a position in Catalyst Pharmaceutical in Q3 2013 and has held it in 30 quarters since.
380 funds tracked by Wall St. Rank held Catalyst Pharmaceutical as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.