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Data sourced from SEC EDGAR 13F filings

© 2026 Super Investor · Not financial advice

JANA Partners Management LP

Period:
Q1 2026
Portfolio date:
Mar 31, 2026
No. of stocks:
10
Portfolio value:
$1,605,978,000
Filed:
May 15, 2026
CIK:
1998597
Stock Issuer % of Portfolio Recent Activity Shares Price Value ▼
MRCYhistMERCURY SYS INC18.65Reduce 17.00%4,107,424$72.91$299.47M
COOhistCOOPER COS INC15.87Add 1.00%3,565,158$71.50$254.91M
FISVhistFISERV INC15.41Add 98.00%4,435,605$55.80$247.51M
SPYhistSTATE STR SPDR S&P 500 ETF T13.92Reduce 12.00%343,665$650.34$223.50M
LWhistLAMB WESTON HLDGS INC13.18—5,008,635$42.26$211.66M
MKLhistMARKEL GROUP INC8.98Reduce 7.00%75,307$1914.07$144.14M
ALKThistALKAMI TECHNOLOGY INC5.30Add 11.00%5,431,388$15.67$85.11M
FUNhistSIX FLAGS ENTERTAINMENT CORP4.55—4,116,099$17.75$73.06M
RPDhistRAPID7 INC2.31—6,743,653$5.51$37.16M
EHABhistENHABIT INC1.83—2,090,412$14.09$29.45M
THShistTREEHOUSE FOODS INC0.00Sell0—$0
FRPThistFRESHPET INC0.00Sell0—$0