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WATER ISLAND CAPITAL LLC: CPRX position timeline

Available 13F reports, 13D and 13G stakes and each Form 3, 4 and 5 line of WATER ISLAND CAPITAL LLC on CPRX, newest first. How the timeline and the estimate are built.

WATER ISLAND CAPITAL LLC held 933,819 CPRX shares at 2026-06-30 per its 13F-HR filed 2026-08-14.

the latest 13F is the newest step

  1. period ended2026-06-30
    13F 933,819 shares
    Change vs previous 13F not available

    3.11% of the 13F portfolio, value $29,349,931.

    13F-HR 0001222765-26-000011 filed by WATER ISLAND CAPITAL LLC
    Filed (acceptance time not in the bulk data set), ingested

    Acceptance time not in the bulk data set (spec ยง4.2).