JANA Partners Management, LP

All Holdings — 2025 Q4

AI Portfolio Summary
In 2025 Q4, JANA Partners Management, LP maintained a portfolio of 13 distinct positions. The most significant new addition to the portfolio was FISERV INC, which now represents 7.85% of the total fund value. They heavily accumulated shares in COOPER COS INC, increasing their position by 44.6%. Conversely, JANA Partners Management, LP completely exited their position in TRIMBLE INC.
PCA Score Concentration Risk
Risk ENB
Total Positions
13
Quarter
2025 Q4
Top Holding
MRCY (18.8%)
Top 10 Concentration
97.2%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
1-13 of 13
Stock History Sector / Type Port % Prev % Rank / Prev Conviction Change % Change Influence Shares Mkt Value Avg Cost Price Held 1st Owned Source Source Date Date Reported
MRCY
MERCURY SYS INC
Industrials 18.84% 22.33% #1
Prev: #1
6.5 -1,000,000 -16.8%
P
S
4,959,481 $362,091,708 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
COO
COOPER COS INC
Healthcare 15.01% 8.08% #2 3
Prev: #5
8.0 1,085,013 44.6%
P
S
3,519,620 $288,468,055 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
SPY
SPDR S&P 500 ET...
ETF 13.89% 12.47% #3 1
Prev: #4
5.5 4,700 1.2%
P
S
391,337 $266,860,527 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
LW
LAMB WESTON HLD...
Consumer Defensive 10.92% 14.08% #4 2
Prev: #2
5.5 no change no change
P
S
5,008,635 $209,811,720 2024 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
MKL
MARKEL GROUP IN...
Financial Services 9.08% 13.64% #5 2
Prev: #3
4.1 -66,192 -44.9%
P
S
81,219 $174,592,423 2024 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
FISV
FISERV INC
Unknown 7.85% #6
Prev: #—
6.6 2,245,520 no change
NEW
2,245,520 $150,831,578 2025 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
THS
TREEHOUSE FOODS...
Consumer Defensive 7.15% 5.70% #7 1
Prev: #8
3.9 no change no change
P
S
5,821,337 $137,325,340 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
ALKT
ALKAMI TECHNOLO...
Technology 5.88% 2.28% #8 3
Prev: #11
5.4 3,002,252 158.6%
P
S
4,894,665 $112,919,922 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
RPD
RAPID7 INC
Technology 5.33% 5.90% #9 2
Prev: #7
2.6 241,545 3.7%
P
S
6,743,653 $102,503,526 2024 Q2 13F Filing 2025-12-31 2026-02-14 (Est.)
FUN
SIX FLAGS ENTER...
Consumer Cyclical 3.29% 4.45% #10 1
Prev: #9
1.8 66,159 1.6%
P
S
4,116,099 $63,140,959 2025 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
FRPT
FRESHPET INC
Consumer Defensive 1.77% 2.80% #11 1
Prev: #10
0.7 -490,746 -46.8%
P
S
557,390 $33,961,773 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
EHAB
ENHABIT INC
Healthcare 1.00% 0.83% #12
Prev: #12
0.9 -46,733 -2.2%
P
S
2,090,412 $19,273,599 2023 Q3 13F Filing 2025-12-31 2026-02-14 (Est.)
TRMB
TRIMBLE INC
Technology 0.00% 7.44%
Sold All 😨
(Was: #6)
0.0 -1,881,399 -100.0%
CLOSED
$— 2023 Q4 13F Filing 2025-12-31 2026-02-14 (Est.)
Showing 1-13 of 13 holdings

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