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%

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. <br><br> 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. <br><br> 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

$1.61Billion

as of May 15, 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 inc	97.53
alkami technology inc	10.97
cooper cos inc	1.29

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	%
Others	33.9
Industrials	18.6
Healthcare	17.7
Consumer Defensive	13.2
Financial Services	9
Technology	7.6

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	%
UNALLOCATED	33.9
MID-CAP	31.8
LARGE-CAP	24.8
SMALL-CAP	9.4

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	%
Others	61.5
S&P 500	29.1
RUSSELL 2000	9.4

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.

$1.61BTotal Value

12.00Positions

15 May, 2026Last Reported

Current holdings of Current Stock Holdings of JANA Partners Management, LP, last reported on 15 May, 2026. Select a row with a linked ticker to view its historical trend.
Holdingsorted ascending	% Portfolio	Shares Held	$ Value	% Change
ALKT Alkami Technology Inc Alkami Technology IncALKT JANA Partners Management, LP's holding in Alkami Technology Inc over time	5.3%	5,431,390	$85.11M 5.3%	increased 10.97 percentadded

COO Cooper Cos Inc Cooper Cos IncCOO JANA Partners Management, LP's holding in Cooper Cos Inc over time	15.87%	3,565,160	$254.91M 15.87%	increased 1.29 percentadded

EHAB Enhabit Inc Enhabit IncEHAB JANA Partners Management, LP's holding in Enhabit Inc over time	1.83%	2,090,410	$29.45M 1.83%	unchanged 0 percentunchanged

FRPT Freshpet Inc Freshpet IncFRPT JANA Partners Management, LP's holding in Freshpet Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

LW Lamb Weston Hldgs Inc Lamb Weston Hldgs IncLW JANA Partners Management, LP's holding in Lamb Weston Hldgs Inc over time	13.18%	5,008,640	$211.66M 13.18%	unchanged 0 percentunchanged

MKL Markel Group Inc Markel Group IncMKL JANA Partners Management, LP's holding in Markel Group Inc over time	8.97%	75,307	$144.14M 8.97%	decreased 7.28 percentreduced

MRCY Mercury Sys Inc Mercury Sys IncMRCY JANA Partners Management, LP's holding in Mercury Sys Inc over time	18.65%	4,107,420	$299.47M 18.65%	decreased 17.18 percentreduced

RPD Rapid7 Inc Rapid7 IncRPD JANA Partners Management, LP's holding in Rapid7 Inc over time	2.31%	6,743,650	$37.16M 2.31%	unchanged 0 percentunchanged

SPY State Str Spdr S&P 500 Etf T State Str Spdr S&P 500 Etf T SPY JANA Partners Management, LP's holding in State Str Spdr S&P 500 Etf T over time	13.92%	343,665	$223.50M 13.92%	decreased 12.18 percentreduced

THS Treehouse Foods Inc Treehouse Foods IncTHS JANA Partners Management, LP's holding in Treehouse Foods Inc over time	0%	0.00	$0.00 0%	decreased 100 percentsold off

Com Fiserv Inc Fiserv Inc JANA Partners Management, LP's holding in Fiserv Inc over time	15.41%	4,435,600	$247.51M 15.41%	increased 97.53 percentadded

Com Six Flags Entertainment Corp Six Flags Entertainment Corp JANA Partners Management, LP's holding in Six Flags Entertainment Corp over time	4.55%	4,116,100	$73.06M 4.55%	unchanged 0 percentunchanged