JANA Partners Management, LP
Top Portfolio Positions
10 positions ·
$1,605,976,750 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| MRCY |
Mercury Systems Inc
Industrials
|
4,107,424 | $299,472,283 | 18.65% | |
| COO |
Cooper Companies, Inc.
Healthcare
|
3,565,158 | $254,908,797 | 15.87% | |
| FISV |
Fiserv Inc
|
4,435,605 | $247,506,759 | 15.41% | |
| SPY |
Spdr S&P 500 ETF Trust
|
343,665 | $223,499,096 | 13.92% | |
| LW |
Lamb Weston Holdings, Inc.
Consumer Defensive
|
5,008,635 | $211,664,915 | 13.18% | |
| MKL |
Markel Group Inc.
Financial Services
|
75,307 | $144,142,861 | 8.98% | |
| ALKT |
Alkami Technology, Inc.
Technology
|
5,431,388 | $85,109,849 | 5.30% | |
| FUN |
Six Flags Entertainment Corporation/NEW
Consumer Cyclical
|
4,116,099 | $73,060,757 | 4.55% | |
| RPD |
Rapid7, Inc.
Technology
|
6,743,653 | $37,157,528 | 2.31% | |
| EHAB |
Enhabit, Inc.
Healthcare
|
2,090,412 | $29,453,905 | 1.83% |
Portfolio Trend
10 quarters · across all stocks
Holdings in MRCY
Shares Held
Position Value (USD)
13 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $299,472,283 | 4,107,424 | Shares | Sole | 2026-05-15 | |
| 2026-03-03 | $367,970,287 | 4,114,618 | Shares | Sole | 2026-03-04 | |
| 2025-12-31 | $362,091,707 | 4,959,481 | Shares | Sole | 2026-02-17 | |
| 2025-11-06 | $374,288,628 | 4,966,675 | Shares | Sole | 2025-11-10 | |
| 2025-09-30 | $461,263,829 | 5,959,481 | Shares | Sole | 2025-11-14 | |
| 2025-08-13 | $407,899,366 | 5,964,313 | Shares | Sole | 2025-08-15 | |
| 2025-06-30 | $363,738,824 | 6,753,413 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $299,112,035 | 6,941,565 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $291,545,730 | 6,941,565 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $256,837,905 | 6,941,565 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $186,902,943 | 6,924,896 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $204,284,432 | 6,924,896 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $190,571,206 | 5,211,135 | Shares | Sole | 2024-02-14 | |
| No 13F history on record for this holder in this stock. | ||||||