JP

JANA Partners Management, LP

Quality / disciplined sizingLong-term holderSector-focused

Total reported value

$1.6B

Reporting period: 2026-03-31 · Number of holdings: 10

JANA Partners Management, LP disclosed 10 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $1.6B and a quarterly turnover rate of 0.0%.

Browse other institutions with $1B to $10B AUMBrowse other institutions starting with "J"

Personality snowflake

Concentration
53.7
Portfolio Stability
0
Momentum/Contrarian
50
Sector conviction
79.75
Diversification
20
Sizing Uniformity
93.83

Recent moves

  • Add FISV

    +97.5%　$96.7M

  • Sold out THS

  • Trim RPD

    0.0%　-$65.3M

  • Add LW

    0.0%　$1.9M

  • Sold out FRPT

  • Add FUN

    0.0%　$9.9M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#TickerIssuerAsset SubclassWeightWeight ChangeShares Change4Q Trend
1MRCYMercury Systems INCStock-Industrials18.65%-0.19%-17.18%
2COOCooper Cos Inc/theStock-Healthcare15.87%+0.86%+1.29%
3FISVFiserv INCStock-Other15.41%+7.56%+97.53%
4SPYSs Spdr S&p 500 ETF Trust-usETF-Large Cap & Growth13.92%+0.03%-12.18%
5LWLamb Weston Holdings INCStock-Consumer Staples13.18%+2.26%—
6MKLMarkel Group INCStock-Financials8.98%-0.10%-7.28%
7ALKTAlkami Technology INCStock-Other5.30%-0.58%+10.97%
8FUNSix Flags Entertainment CORPStock-Other4.55%+1.26%—
9RPDRapid7 INCStock-Other2.31%-3.02%—
10EHABUSDEnhabit INCStock-Other1.83%+0.83%—

Holding changes this quarter

JANA Partners Management, LP's most significant position changes for 2026-03-31: Sold out: Treehouse Foods INC (THS); Sold out: Freshpet INC (FRPT); Add: Fiserv INC (FISV) — shares +97.53%; Add: Cooper Cos Inc/the (COO) — shares +1.29%; Add: Alkami Technology INC (ALKT) — shares +10.97%.

Position changes disclosed by JANA Partners Management, LP for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#TickerIssuerWeight ChangeShares ChangeAction
1FISVFiserv INC+7.6%+97.53%Add
2LWLamb Weston Holdings INC+2.3%—Unchanged
3FUNSix Flags Entertainment CORP+1.3%—Unchanged
4COOCooper Cos Inc/the+0.9%+1.29%Add
5EHABUSDEnhabit INC+0.8%—Unchanged
6SPYSs Spdr S&p 500 ETF Trust-us0%-12.18%Trim
7MKLMarkel Group INC-0.1%-7.28%Trim
8MRCYMercury Systems INC-0.2%-17.18%Trim
9ALKTAlkami Technology INC-0.6%+10.97%Add
10FRPTFreshpet INC-1.8%EXITSold out
11RPDRapid7 INC-3%—Unchanged
12THSTreehouse Foods INC-7.2%EXITSold out

FAQ

What is JANA Partners Management, LP and what type of investor is it?
JANA Partners Management, LP is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $1.6B, spread across 10 disclosed positions.
What are JANA Partners Management, LP's largest equity positions?
Based on the latest 13F filing, JANA Partners Management, LP's top holdings by market value are: 1. Mercury Systems INC (MRCY) — $299.5M (18.6%) 2. Cooper Cos Inc/the (COO) — $254.9M (15.9%) 3. Fiserv INC (FISV) — $247.5M (15.4%) 4. Ss Spdr S&p 500 ETF Trust-us (SPY) — $223.5M (13.9%) 5. Lamb Weston Holdings INC (LW) — $211.7M (13.2%)
What changes did JANA Partners Management, LP make in its most recent portfolio filing?
In the latest reported quarter, JANA Partners Management, LP made 8 notable position adjustments: 0 new positions were initiated, 3 existing holdings were added to, 3 positions were partially reduced, and 2 were completely exited. The largest of these moves: Sold out: Treehouse Foods INC (THS); Sold out: Freshpet INC (FRPT); Add: Fiserv INC (FISV) — shares +97.53%; Add: Cooper Cos Inc/the (COO) — shares +1.29%; Add: Alkami Technology INC (ALKT) — shares +10.97%
What sectors does JANA Partners Management, LP focus on?
JANA Partners Management, LP is concentrated in the following sectors based on its current disclosed equity portfolio: • Industrials: 32.9% • Health Care: 28.0% • Consumer Staples: 23.3% • Financials: 15.8%

Peer Institutions

Institutions with a similar AUM

RC

Roundview Capital LLC

Total reported value

$1.6B

340 stks

2026-03-31

Concentration6.0
Portfolio Stability12.9
Sector conviction51.2

AUM within 0.0% of this institution

View detail
TA

Trust Asset Management LLC

Total reported value

$1.6B

229 stks

2026-06-30

Concentration100.0
Portfolio Stability15.9
Sector conviction93.7

AUM within 0.1% of this institution

View detail
BR

Bluestein R H & Co LLC

Total reported value

$1.6B

340 stks

2022-09-30

Concentration13.3
Portfolio Stability0.0
Sector conviction51.2

AUM within 0.1% of this institution

View detail

Similar Holdings Style

Institutions with overlapping top holdings

BL

Brown, Lisle/cummings, INC.

Total reported value

$400.4M

1,021 stks

2026-03-31

Concentration5.0
Portfolio Stability13.4
Sector conviction47.9

1 of the top 5 holdings overlap, including Ss Spdr S&p 500 ETF Trust-us

View detail
SF

Synovus Financial CORP

Total reported value

$8.7B

1,549 stks

2025-09-30

Concentration10.2
Portfolio Stability22.0
Sector conviction57.0

1 of the top 5 holdings overlap, including Ss Spdr S&p 500 ETF Trust-us

View detail
DC

Dow Chemical Co /de/

Total reported value

$238.8M

6 stks

2026-03-31

Concentration100.0
Portfolio Stability16.8
Sector conviction100.0

1 of the top 5 holdings overlap, including Ss Spdr S&p 500 ETF Trust-us

View detail