CIS
CPRX

Custom Index Systems’s Catalyst Pharmaceutical CPRX Stock Holding History

Custom Index Systems’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
2025
Q3 		– Sell
-36,294
Closed -$788K – 265
2025
Q2 		$788K Sell
36,294
-124
-0.3% -$2.93K 0.38% 81
2025
Q1 		$883K Buy
+36,418
New +$820K 0.45% 60

Other funds holding CPRX

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Fundsmith LLP
Fundsmith LLP London, United Kingdom $12.8B AUM 6.9% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Custom Index Systems's CPRX Position: Q3 2025 in Review

Custom Index Systems sold out of Catalyst Pharmaceutical (CPRX) in Q3 2025, closing a stake of 36,294 shares — an estimated $788K sold.

Custom Index Systems first reported a position in CPRX in Q1 2025 and held it in 2 quarters. The position peaked at $883K in Q1 2025. 360 funds tracked by Wall St. Rank hold CPRX as of Q3 2025.

  • Custom Index Systems reported no remaining Catalyst Pharmaceutical position as of Q3 2025 after selling out during the quarter.
  • Custom Index Systems sold 36,294 Catalyst Pharmaceutical shares in Q3 2025, an estimated $788K.
  • Custom Index Systems first reported a position in Catalyst Pharmaceutical in Q1 2025 and held it in 2 quarters.
  • Custom Index Systems's Catalyst Pharmaceutical position peaked at $883K in Q1 2025.
  • 360 funds tracked by Wall St. Rank held Catalyst Pharmaceutical as of Q3 2025.

Based on Custom Index Systems's 13F filing for Q3 2025, filed 29 Oct 2025.