Barry Rosenstein & Scott Ostfeld

Barry Rosenstein & Scott Ostfeld

Jana Partners LLC | CIK: 0001998597

Filing Date
Aug 14, 2026
Market Value
$1.62B
Holdings
9
Turnover
2.94%
Avg. Hold
7 Qtrs
Buys
0
Sells
2

Q2 2026 Holdings

Holding Asset Type Portfolio % Recent Activity Shares Market Value AVG Price Paid Current Price Performance
MRCY Mercury Systems Stock 20.87% Reduced 3.62% 3.96M $337.61M $35.17 $85.28 +142.51%
LW Lamb Weston Stock 15.56% Added 7.71% 5.39M $251.77M $65.13 $46.67 -28.34%
SPY State Street SPDR S&P 500 ETF ETF 16.15% Reduced 0.20% 342.97K $261.23M $489.23 $761.69 +55.69%
COO The Cooper Companies Stock 12.24% Added 0.49% 3.58M $198.08M $71.79 $55.29 -22.98%
FISV Fiserv Stock 10.68% Reduced 17.44% 3.66M $172.81M $67.96 $47.19 -30.56%
MKL Markel Stock 8.43% Added 1.91% 76.74K $136.32M $1720.12 $1776.33 +3.27%
ALKT Alkami Technology Stock 7.98% Added 24.24% 6.75M $129.08M $21.21 $19.13 -9.79%
RPD Rapid7 Stock 4.99% Added 0.09% 6.75M $80.8M $32.24 $11.97 -62.88%
FUN Six Flags Entertainment Stock 3.11% Unchanged 4.12M $50.3M $25.73 $12.22 -52.51%

Sold Positions (100% Exited)

Company Asset Type Shares Sold Status
PSTG Everpure Inc
- -1.04M 100% Sold
EHAB Enhabit Inc
- -2.09M 100% Sold

Sector Breakdown

Sector Weight
Technology
23.65%
Industrials
20.87%
Consumer Defensive
15.56%
Healthcare
12.24%
Financial Services
8.43%
Consumer Cyclical
3.11%

Industry Breakdown

Industry Weight
Aerospace & Defense
20.87%
Packaged Foods
15.56%
Medical - Instruments & Supplies
12.24%
Information Technology Services
10.68%
Insurance - Property & Casualty
8.43%
Software - Application
7.98%
Software - Infrastructure
4.99%
Leisure
3.11%

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