JANA Partners Management, LP

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 15, 2024), JANA Partners Management, LP reported 10 stock positions worth $1.8 billion. Its top holding was SS SPDR S&P 500 ETF Trust-US (SPY) at 19.5% of the portfolio, followed by Fidelity National Info Serv (FIS, 13.9%) and Trimble (TRMB, 13.2%). Compared with Q4 2023, it opened 2 new positions, added to 5 and reduced 2. The biggest buy was a new position in Wolfspeed (WOLF) and the biggest sale Freshpet (FRPT, shares −61%).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001998597
Portfolio Value
$1.8B (Q1 2024)
SEC Filing
0000902664-24-003586 ↗ filed May 15, 2024

Holdings Value

0$500.0M$1.0B$1.5B$2.0B$2.5B Q1 2024: $1.8B $1.8B Q1 2024 Q2 2024: $1.7B Q2 2024 Q3 2024: $1.8B Q3 2024 Q4 2024: $1.9B Q4 2024 Q1 2025: $1.9B Q1 2025 Q2 2025: $2.0B Q2 2025 Q3 2025: $2.1B Q3 2025 Q4 2025: $1.9B Q4 2025 Q1 2026: $1.7B Q1 2026 Q2 2026: $1.9B Q2 2026

Holdings 10 stocks · $1.8B

SPY SS SPDR S&P 500 ETF Trust-US 19.46% 680,733 $356.1M Add +22.9%
FIS Fidelity National Info Serv 13.94% 3,438,814 $255.1M Add +3.8%
TRMB Trimble Inc. 13.23% 3,761,075 $242.1M Add +0.0%
FYBR Frontier Communications Pare 13.02% 9,722,076 $238.2M Add +7.7%
MRCY Mercury Systems Inc. 11.17% 6,924,896 $204.3M Add +32.9%
THS Treehouse Foods Inc. 10.45% 4,907,689 $191.2M No change
WOLF Wolfspeed Inc. 7.35% 4,557,881 $134.5M New
FRPT Freshpet Inc. 6.92% 1,093,477 $126.7M Reduce -60.9%
QDEL Quidelortho Corp. 3.13% 1,195,800 $57.3M New
EHAB Enhabit Inc. 1.33% 2,081,077 $24.2M Reduce -0.1%

Portfolio Sells Q4 2023 → Q1 2024

FRPT Freshpet Inc. Reduce -60.9% 6.92% −8.72
EHAB Enhabit Inc. Reduce -0.1% 1.33% −0.07

Portfolio Buys Q4 2023 → Q1 2024

WOLF Wolfspeed Inc. New 7.35% +7.35
QDEL Quidelortho Corp. New 3.13% +3.13
SPY SS SPDR S&P 500 ETF Trust-US Add +22.9% 19.46% +2.47
FIS Fidelity National Info Serv Add +3.8% 13.94% +1.09
TRMB Trimble Inc. Add +0.0% 13.23% +0.32
MRCY Mercury Systems Inc. Add +32.9% 11.17% −1.14
FYBR Frontier Communications Pare Add +7.7% 13.02% −1.74

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 10$1.9BMRCY, COO, SPY, LW, FISV
Q1 2026Amended 11$1.7BMRCY, COO, FISV, SPY, LW
Q4 2025 12$1.9BMRCY, COO, SPY, LW, MKL
Q3 2025 12$2.1BMRCY, LW, MKL, SPY, COO
Q2 2025 10$2.0BLW, MRCY, SPY, MKL, TRMB
Q1 2025 10$1.9BLW, SPY, MRCY, MKL, TRMB
Q4 2024 10$1.9BLW, TRMB, MRCY, SPY, MKL
Q3 2024 11$1.8BTRMB, SPY, MRCY, LW, THS
Q2 2024 12$1.7BFYBR, SPY, FIS, TRMB, MRCY
Q1 2024 10$1.8BSPY, FIS, TRMB, FYBR, MRCY