Jana Partners Management
Activist Investor
$1.9B 13F equity value
11 Holdings
Quarter ended June 30, 2026
The latest 13F on file for Jana Partners Management covers the quarter ended June 30, 2026. Institutional managers report holdings quarterly to the SEC, so each filing is a snapshot of positions held on that date.
Top Holdings
| Ticker | Company | Shares | Value | Weight |
|---|---|---|---|---|
| MRCY | MERCURY SYS INC | 3,958,849 | $484M | 25.5% |
| COO | COOPER COS INC | 3,582,480 | $257M | 13.5% |
| SPY | STATE STR SPDR S&P 500 ETF T | 342,965 | $256M | 13.5% |
| LW | LAMB WESTON HLDGS INC | 5,394,635 | $233M | 12.2% |
| FISV | FISERV INC | 3,662,080 | $180M | 9.4% |
| MKL | MARKEL GROUP INC | 76,743 | $150M | 7.9% |
| ALKT | ALKAMI TECHNOLOGY INC | 6,747,707 | $122M | 6.4% |
| FUN | SIX FLAGS ENTERTAINMENT CORP | 4,116,099 | $88M | 4.6% |
| P | EVERPURE INC | 989,196 | $78M | 4.1% |
| RPD | RAPID7 INC | 6,749,936 | $55M | 2.9% |
Track Jana Partners Management's 13F portfolio: $1.9B in reported holdings, 11 positions. Top holdings and quarterly changes on SentiSense.
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