William Blair Investment Management’s Catalyst Pharmaceutical CPRX Stock Holding History

William Blair Investment Management’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	$11.9M	Buy	+479,041	New	+$11.4M	0.04%	306

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

William Blair Investment Management's CPRX Position: Q1 2026 in Review

William Blair Investment Management opened a new position in Catalyst Pharmaceutical (CPRX) in Q1 2026: 479,041 shares worth $11.9M. The stake represents 0.04% of the portfolio and ranks #306 among its holdings.

380 funds tracked by Wall St. Rank hold CPRX as of Q1 2026.

William Blair Investment Management held 479,041 shares of Catalyst Pharmaceutical worth $11.9M as of Q1 2026.
Catalyst Pharmaceutical was a new William Blair Investment Management position in Q1 2026.
Catalyst Pharmaceutical made up 0.04% of William Blair Investment Management's portfolio in Q1 2026, its #306 holding.
380 funds tracked by Wall St. Rank held Catalyst Pharmaceutical as of Q1 2026.

Based on William Blair Investment Management's 13F filing for Q1 2026, filed 8 May 2026.