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 Q2	–	Sell	-16,500	Closed	-$409K	–	11745
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 $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

GCL

Glazer Capital LLC New York $4.07B AUM 78.71% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Jane Street's CPRX Position: Q2 2026 in Review

Jane Street reduced its Catalyst Pharmaceutical (CPRX) stake by 97% in Q2 2026, selling an estimated $15.5M and leaving 18,758 shares worth $590K. The position accounts for ﹤0.01% of the portfolio, ranked #7646.

Jane Street first reported a position in CPRX in Q3 2013 and has held it in 31 quarters since. The position peaked at $13.5M in Q1 2026. 396 funds tracked by Wall St. Rank hold CPRX as of Q2 2026.

Jane Street held 18,758 shares of Catalyst Pharmaceutical worth $590K as of Q2 2026.
Jane Street sold 526,469 Catalyst Pharmaceutical shares in Q2 2026, an estimated $15.5M.
Catalyst Pharmaceutical made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #7646 holding.
Jane Street first reported a position in Catalyst Pharmaceutical in Q3 2013 and has held it in 31 quarters since.
Jane Street's Catalyst Pharmaceutical position peaked at $13.5M in Q1 2026.
396 funds tracked by Wall St. Rank held Catalyst Pharmaceutical as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.