What Barry Rosenstein Bought in Q2 2026

JANA Partners · Quarterly 13F recap as filed with the SEC.

Period: 2026-06-30 · Filed

$1.90B

Total Value

10

Holdings

0

New Buys

3

Reduced

In Q2 2026, Barry Rosenstein reported 10 long equity positions worth $1.90B in their JANA Partners 13F filing and 6 increased positions.

RankTickerCompanySharesValue% PortfolioChange
1MRCYMERCURY SYS INC3958849$484.3M25.46%-3.6%
2COOCOOPER COS INC3582480$256.9M13.50%+0.5%
3SPYSPDR S&P 500 ETF342965$256.1M13.46%-0.2%
4LWLAMB WESTON HLDGS INC5394635$232.9M12.25%+7.7%
5FISVFISERV INC3662080$179.6M9.44%-17.4%
6MKLMARKEL GROUP INC76743$149.9M7.88%+1.9%
7ALKTALKAMI TECHNOLOGY INC6747707$122.3M6.43%+24.2%
8FUNSIX FLAGS ENTERTAINMENT CORP4116099$87.7M4.61%
9PEVERPURE INC989196$77.9M4.10%+-5.1%
10RPDRAPID7 INC6749936$54.7M2.87%+0.1%