JANA Partners Management, LP
New York, NY 14 processed 13Fs on this site, 2023 Q3 to 2026 Q2
- $1.9B
- 10 holdings
- 2026 Q2
- +18.4% QoQ
- Top 5 74.1%
AUM over time
Book
| MRCY, Mercury Systems | Reduce −17.2% | 4,107,424 | $72.91 | $299M | −852,057 | −$63M | |
| COO, Cooper Companies | Add +1.3% | 3,565,158 | $71.50 | $255M | +45,538 | −$34M | |
| FISV, Fiserv | Add +97.5% | 4,435,605 | $55.80 | $248M | +2,190,085 | +$97M | |
| SPY, SPDR S&P 500 ETF Trust | Reduce −12.2% | 343,665 | $650.34 | $223M | −47,672 | −$43M | |
| LW, Lamb Weston | Hold | 5,008,635 | $42.26 | $212M | — | — | |
| MKL, Markel Group | Reduce −7.3% | 75,307 | $1,914 | $144M | −5,912 | −$30M | |
| ALKT, Alkami Technology | Add +11.0% | 5,431,388 | $15.67 | $85M | +536,723 | −$28M | |
| FUN, Six Flags Entertainment | Hold | 4,116,099 | $17.75 | $73M | — | — | |
| RPD, Rapid7 | Hold | 6,743,653 | $5.51 | $37M | — | — | |
| Enhabit | Hold | 2,090,412 | $14.09 | $29M | — | — |
Exits / last held
Gone since 2025 Q4, shown at their last reported size.
| Stock | % of portfolio | Recent activity | Shares | Reported price* | Value | Share change | $ change |
|---|---|---|---|---|---|---|---|
| Treehouse Foods | Exit | 0 | $23.59 | $137M | −5,821,337 | −$137M | |
| FRPT, Freshpet | Exit | 0 | $60.93 | $34M | −557,390 | −$34M |
Filings history
12 periods, with AUM normalized
| Period | Holds | AUM | QoQ | Form | Filed | Filing ID |
|---|---|---|---|---|---|---|
| 2026 Q2 | 10 | $1.9B | +18.4% | 13F-HR | 8/14/2026 | 000090266426003486 |
| 2026 Q1 | 1 | $62M | — | new holds | 6/30/2026 | 000090266426002957 |
| 2026 Q1 | 10 | $1.6B | −16.4% | 13F-HR | 5/15/2026 | 000090266426002515 |
| 2025 Q4 | 12 | $1.9B | −6.9% | 13F-HR | 2/17/2026 | 000090266426001069 |
| 2025 Q3 | 12 | $2.1B | +3.7% | 13F-HR | 11/14/2025 | 000090266425005066 |
| 2025 Q2 | 10 | $2B | +2.8% | 13F-HR | 8/14/2025 | 000090266425003587 |
| 2025 Q1 | 10 | $1.9B | −4.7% | 13F-HR | 5/15/2025 | 000090266425002348 |
| 2024 Q4 | 11 | $2B | +5.6% | 13F-HR | 2/14/2025 | 000090266425001058 |
| 2024 Q3 | 12 | $1.9B | +12.6% | 13F-HR | 11/14/2024 | 000090266424006510 |
| 2024 Q2 | 12 | $1.7B | −6.6% | 13F-HR | 8/14/2024 | 000090266424005100 |
| 2024 Q1 | 10 | $1.8B | +18.1% | 13F-HR | 5/15/2024 | 000090266424003586 |
| 2023 Q4 | 8 | $1.5B | +13.4% | 13F-HR | 2/14/2024 | 000090266424001588 |
| 2023 Q3 | 1 | $36M | — | new holds | 11/16/2023 | 000090266423005626 |
| 2023 Q3 | 8 | $1.4B | — | 13F-HR | 11/14/2023 | 000090266423005550 |
About
JANA Partners Management, LP
14 processed 13Fs on this site, 2023 Q3 to 2026 Q2