Sarissa Capital Management LP is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q2 2026, the fund manages $178M in reported equity holdings across 10 positions. The largest holdings are INFY (24.1%), IRWD (21.7%), AMRN (15.0%), NBIX (11.0%), CYTK (10.9%). The portfolio is concentrated in Other (100.0%). Data sourced from SEC EDGAR 13F filings (CIK 1577524).