Jana Partners Management, Lp Portfolio Stock Holdings

Jana Partners Management, Lp disclosed 10 stock positions valued at approximately $1.6 billion in its latest SEC 13F filing. The largest holdings include MERCURY SYS INC, COOPER COS INC, and FISERV INC. The filing reflects positions held as of March 31, 2026 and was filed on May 15, 2026.

Report Period
March 31, 2026
No. of Stocks
10
Portfolio Value
$1.6B
Holdings by Sector
Jana Partners Management, Lp Portfolio Holdings in Q1 2026

9 holdings in the latest reporting period.

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CompanySymbolSectorPortfolio %SharesChange (Shares)Change %Value
MERCURY SYS INCMRCYIndustrials18.65%4,107,424-852,057-17.18%$299,472,284
COOPER COS INCCOOHealthcare15.87%3,565,158+45,538+1.29%$254,908,797
FISERV INCFITechnology15.41%4,435,605+2,190,085+97.53%$247,506,759
STATE STR SPDR S&P 500 ETF TSPYOther13.92%343,665-47,672-12.18%$223,499,096
LAMB WESTON HLDGS INCLWConsumer Defensive13.18%5,008,635--$211,664,915
MARKEL GROUP INCMKLFinancial Services8.98%75,307-5,912-7.28%$144,142,869
ALKAMI TECHNOLOGY INCALKTTechnology5.30%5,431,388+536,723+10.97%$85,109,850
RAPID7 INCRPDTechnology2.31%6,743,653--$37,157,528
ENHABIT INCEHABHealthcare1.83%2,090,412--$29,453,905