JANA Partners

Latest 13F portfolio for 2026-03-31. SEC filing 0000902664-26-002515

TickerIssuerWeightValue
MRCY
589378108
MERCURY SYS INC18.65%$299.5M
COO
216648501
COOPER COS INC15.87%$254.9M
FISV
337738108
FISERV INC15.41%$247.5M
SPY
78462F103
STATE STR SPDR S&P 500 ETF T13.92%$223.5M
LW
513272104
LAMB WESTON HLDGS INC13.18%$211.7M
MKL
570535104
MARKEL GROUP INC8.98%$144.1M
ALKT
01644J108
ALKAMI TECHNOLOGY INC5.30%$85.1M
FUN
83001C108
SIX FLAGS ENTERTAINMENT CORP4.55%$73.1M
RPD
753422104
RAPID7 INC2.31%$37.2M
EHABUSD
29332G102
ENHABIT INC1.83%$29.5M