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Latest JANA Partners Management, LP Stock Portfolio

$1.61Billion– No. of Holdings #10

JANA Partners Management, LP Performance:
2026 Q1: -9.85%YTD: -9.85%2025: -1.47%
Performance for 2026 Q1 is -9.85%, and YTD is -9.85%, and 2025 is -1.47%.

About JANA Partners Management, LP and 13F Hedge Fund Stock Holdings

On 2026-05-15, the fund reported it's updated stock portfolio. In the 13F Holdings report, JANA Partners Management, LP reported an equity portfolio of $1.6 Billions as of 31 Mar, 2026.

The top stock holdings of JANA Partners Management, LP are MRCY, COO, . The fund has invested 18.6% of it's portfolio in MERCURY SYS INC and 15.9% of portfolio in COOPER COS INC.

The fund managers got completely rid off TREEHOUSE FOODS INC (THS) and FRESHPET INC (FRPT) stocks. They significantly reduced their stock positions in MERCURY SYS INC (MRCY), STATE STR SPDR S&P 500 ETF T (SPY) and MARKEL GROUP INC (MKL). The fund showed a lot of confidence in some stocks as they added substantially to FISERV INC, ALKAMI TECHNOLOGY INC (ALKT) and COOPER COS INC (COO).
JANA Partners Management, LP Equity Portfolio Value
Last Reported on: 15 May, 2026

JANA Partners Management, LP Annual Return Estimates Vs S&P 500

Our best estimate is that JANA Partners Management, LP made a return of -9.85% in the last quarter. In trailing 12 months, it's portfolio return was -1.95%.
  • Performance
  • S&P 500

New Buys

No new stocks were added by JANA Partners Management, LP

Additions

Ticker% Inc.
fiserv inc97.53
alkami technology inc10.97
cooper cos inc1.29
Additions to existing portfolio by JANA Partners Management, LP

Reductions

Ticker% Reduced
mercury sys inc-17.18
state str spdr s&p 500 etf t-12.18
markel group inc-7.28
JANA Partners Management, LP reduced stake in above stock

Sold off

Ticker$ Sold
treehouse foods inc-137,325,000
freshpet inc-33,961,800
JANA Partners Management, LP got rid off the above stocks

Sector Distribution

JANA Partners Management, LP has about 33.9% of it's holdings in Others sector.

  • Others
  • Industrials
  • Healthcare
  • Consumer Defensive
  • Financial Services
  • Technology
Sector%
Others33.9
Industrials18.6
Healthcare17.7
Consumer Defensive13.2
Financial Services9
Technology7.6

Market Cap. Distribution

JANA Partners Management, LP has about 24.8% of it's portfolio invested in the large-cap and mega-cap stocks.

  • UNALLOCATED
  • MID-CAP
  • LARGE-CAP
  • SMALL-CAP
Category%
UNALLOCATED33.9
MID-CAP31.8
LARGE-CAP24.8
SMALL-CAP9.4

Stocks belong to which Index?

About 38.5% of the stocks held by JANA Partners Management, LP either belong to S&P 500 or RUSSELL 2000 index.

  • Others
  • S&P 500
  • RUSSELL 2000
Index%
Others61.5
S&P 50029.1
RUSSELL 20009.4
Top 5 Winners (%)%
EHAB
enhabit inc
52.8 %
six flags entertainment corp
15.7 %
LW
lamb weston hldgs inc
0.9 %
Top 5 Winners ($)$
EHAB
enhabit inc
10.2 M
six flags entertainment corp
9.9 M
LW
lamb weston hldgs inc
1.9 M
Top 5 Losers (%)%
RPD
rapid7 inc
-63.8 %
ALKT
alkami technology inc
-31.0 %
fiserv inc
-13.3 %
COO
cooper cos inc
-12.7 %
MKL
markel group inc
-10.6 %
Top 5 Losers ($)$
RPD
rapid7 inc
-65.3 M
ALKT
alkami technology inc
-38.2 M
fiserv inc
-38.0 M
COO
cooper cos inc
-37.1 M
MKL
markel group inc
-18.4 M

JANA Partners Management, LP Holdings Map

This heatmap illustrates the top 50 positions within the fund's portfolio.

Current Stock Holdings of JANA Partners Management, LP

JANA Partners Management, LP has 10 stocks in it's portfolio. RPD proved to be the most loss making stock for the portfolio. EHAB was the most profitable stock for JANA Partners Management, LP last quarter.

Last Reported on: 15 May, 2026
TickerNamesorted ascending% PortfolioShares Held$ ValueType% ChangeOptions