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.
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