Jana Partners Management, Lp Top Holdings and 13F Report (2026) About Jana Partners Management, LpInvestment ActivityJana Partners Management, Lp has $1.61 billion in total holdings as of March 31, 2026.Jana Partners Management, Lp owns shares of 10 different stocks, but just 6 companies or ETFs make up 80% of its holdings.Approximately 8.34% of the portfolio was purchased this quarter.About 17.17% of the portfolio was sold this quarter.This quarter, Jana Partners Management, Lp has purchased 12 new stocks and bought additional shares in 3 stocks.Jana Partners Management, Lp sold shares of 3 stocks and completely divested from 2 stocks this quarter.Largest Holdings Mercury Systems $299,472,284COOPER COS INC $254,908,797FISERV INC $247,506,759SPDR S&P 500 ETF Trust $223,499,096Lamb Weston $211,664,915 Largest Purchases this Quarter FISERV INC 2,190,085 shares (about $122.21M)Alkami Technology 536,723 shares (about $8.41M)COOPER COS INC 45,538 shares (about $3.26M) Largest Sales this Quarter Mercury Systems 852,057 shares (about $62.12M)SPDR S&P 500 ETF Trust 47,672 shares (about $31.00M)Markel Group 5,912 shares (about $11.32M) Sector Allocation Over TimeMap of 500 Largest Holdings ofJana Partners Management, Lp Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorMRCYMercury Systems$299,472,284$62,123,476 â–¼-17.2%4,107,42418.6%AerospaceCOOPER COS INC$254,908,797$3,255,967 â–²1.3%3,565,15815.9%COMFISERV INC$247,506,759$122,206,743 â–²97.5%4,435,60515.4%COMSPYSPDR S&P 500 ETF Trust$223,499,096$31,003,008 â–¼-12.2%343,66513.9%FinanceLWLamb Weston$211,664,9150.0%5,008,63513.2%Consumer StaplesMKLMarkel Group$144,142,869$11,315,982 â–¼-7.3%75,3079.0%Multi-Sector ConglomeratesALKTAlkami Technology$85,109,850$8,410,449 â–²11.0%5,431,3885.3%Computer and TechnologySIX FLAGS ENTERTAINMENT CORP$73,060,7570.0%4,116,0994.5%COMRPDRapid7$37,157,5280.0%6,743,6532.3%Computer and TechnologyEHABEnhabit$29,453,9050.0%2,090,4121.8%MedicalTHSTreeHouse Foods$0$137,325,340 â–¼-100.0%00.0%Consumer StaplesFRPTFreshpet$0$33,961,773 â–¼-100.0%00.0%Consumer StaplesShowing largest 100 holdings. View all holdings. More Institutional Buying and Selling Information SEC Filings and Trading Data SEC Filings 13F Filings Top 13F Buys Top 13F Sells Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In Email Me a Login Link or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
