Featured 13F manager
JANA Partners Management, LP
New York, NY 14 processed 13Fs on this site · 2023 Q3–2026 Q2
- $1.9B
- 10 Positions
- 2026 Q2
- +18.4% QoQ
- Top 5 74.1%
Portfolio
top 5 74.1% · top 10 100.0%
- MRCY - Mercury Sys 25.5%
- COO - Cooper Cos 13.5%
- SPY 13.5%
- LW - Lamb Weston 12.2%
- FISV - Fiserv 9.4%
- MKL - Markel Group 7.9%
- ALKT - Alkami Technology 6.4%
- FUN - Six Flags Entertainment 4.6%
- PSTG - Pure Storage · CL A 4.1%
- RPD - Rapid7 2.9%
AUM over time
Book
| LW - Lamb Weston | 23.44% | Add +102.2% | 7,131,339 | $66.83 | $477M | +3,604,585 | +$248M |
| TRMB - Trimble | 14.52% | Reduce −14.4% | 4,178,088 | $70.66 | $295M | −702,856 | −$8M |
| MRCY - Mercury Sys | 14.34% | Hold | 6,941,565 | $42.00 | $292M | — | — |
| SPY - Spdr S&P 500 ETF Tr | 12.37% | Reduce −10.4% | 429,263 | $586.08 | $252M | −49,700 | −$23M |
| MKL - Markel Group | 9.25% | New | 108,926 | $1,726 | $188M | +108,926 | +$188M |
| Treehouse Foods | 8.49% | Hold | 4,910,950 | $35.13 | $173M | — | — |
| RPD - Rapid7 | 7.30% | Add +0.9% | 3,690,129 | $40.23 | $148M | +34,589 | +$3M |
| FIS - Fidelity Natl Info | 1.97% | Reduce −68.7% | 496,895 | $80.77 | $40M | −1,090,034 | −$93M |
| Wolfspeed | 1.63% | Reduce −19.1% | 4,988,216 | $6.66 | $33M | −1,177,717 | −$27M |
| Enhabit | 0.82% | Hold | 2,137,145 | $7.81 | $17M | — | — |
Exits / last held
not current holdings · last reported size, unchanged · gone vs 2024 Q3
| Stock | % of portfolio | Recent activity | Shares | Reported price* | Value | Share change | $ change |
|---|---|---|---|---|---|---|---|
| Holding | 7.21% | Exit | 0 | $35.53 | $139M | −3,910,213 | −$139M |
| FTRE - Fortrea | 0.72% | Exit | 0 | $20.00 | $14M | −692,408 | −$14M |
Filings history
12 periods · normalized AUM · open a period for holdings
| Period | Holdings | AUM | QoQ | Form | Filed | Filing ID |
|---|---|---|---|---|---|---|
| 2026 Q2 | 10 | $1.9B | +18.4% | 13F-HR | 8/14/2026 | 000090266426003486 |
| 2026 Q1 | 1 | $62M | — | NEW HOLDINGS | 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 HOLDINGS | 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 Q3–2026 Q2