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Data sourced from SEC EDGAR 13F filings

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JANA Partners Management LP

Period:
Q1 2026
Portfolio date:
Mar 31, 2026
No. of stocks:
10
Portfolio value:
$1,605,978,000
Filed:
May 15, 2026
CIK:
1998597
HistStockActivityShare change% change to portfolio
Q1 2026filed May 15, 262 added3 reduced2 exited
≡FISV – FISERV INCAdd 98.00%2,190,0857.56
≡ALKT – ALKAMI TECHNOLOGY INCAdd 11.00%536,723−0.58
Q4 2025filed Feb 17, 261 new2 added3 reduced1 exited
≡FISV – FISERV INCBuy2,245,5207.85
≡COO – COOPER COS INCAdd 45.00%1,085,0136.93
≡ALKT – ALKAMI TECHNOLOGY INCAdd 159.00%3,002,2523.60
Q3 2025filed Nov 14, 253 new1 added4 reduced1 exited
≡COO – COOPER COS INCBuy2,434,6078.08
≡FUN – SIX FLAGS ENTERTAINMENT CORPBuy4,049,9404.45
≡ALKT – ALKAMI TECHNOLOGY INCBuy1,892,4132.28
≡RPD – RAPID7 INCAdd 13.00%
Q2 2025filed Aug 14, 251 new3 added2 reduced1 exited
≡WEX – WEX INCBuy164,0291.21
≡TREEHOUSE FOODS INCAdd 19.00%910,387−1.19
≡RPD – RAPID7 INCAdd 40.00%1,623,8581.04
≡FRPT – FRESHPET INCAdd 37.00%272,0000.28
Q1 2025filed May 15, 252 new3 added1 reduced2 exited
≡MKL – MARKEL GROUP INCBuy156,02215.06
≡SPY – SPDR S&P 500 ETF TRAdd 26.00%111,0903.23
≡FRPT – FRESHPET INCBuy734,7633.16
≡RPD – RAPID7 INCAdd 11.00%415,927
Q4 2024filed Feb 14, 252 new4 reduced3 exited
≡LW – LAMB WESTON HLDGS INCBuy7,131,33923.44
≡MKLCALL – MARKEL GROUP INCBuy177,92615.11
Q3 2024filed Nov 14, 241 new3 added2 reduced2 exited
≡LWCALL – LAMB WESTON HLDGS INCBuy5,828,75419.59
≡TRMB – TRIMBLE INCAdd 17.00%703,4002.07
≡RPD – RAPID7 INCAdd 34.00%931,1540.68
≡SPY
Q2 2024filed Aug 14, 243 new2 added3 reduced1 exited
≡RPD – RAPID7 INCBuy2,724,3866.89
≡BL – BLACKLINE INCBuy1,154,4353.27
≡FTRE – FORTREA HLDGS INCBuy690,0000.94
≡WOLFSPEED INCAdd 35.00%1,608,0520.86
Q1 2024filed May 15, 242 new3 added1 reduced
≡WOLFSPEED INCBuy4,557,8817.35
≡QDEL – QUIDELORTHO CORPBuy1,195,8003.13
≡SPY – SPDR S&P 500 ETF TRAdd 23.00%126,8002.47
≡FRONTIER COMMUNICATIONS PAREAdd 8.00%698,600−1.74
Q4 2023filed Feb 14, 248 new1 exited
≡SPY – SPDR S&P 500 ETF TRBuy553,93317.00
≡FRPT – FRESHPET INCBuy2,793,95415.65
≡FRONTIER COMMUNICATIONS PAREBuy9,023,47614.76
≡TREEHOUSE FOODS INCBuy4,907,68913.13
≡
772,194
−0.75
−1.68
≡LW – LAMB WESTON HLDGS INCAdd 12.00%854,087−1.46
– SPDR S&P 500 ETF TR
Add 9.00%
40,030
0.29
≡TRMB – TRIMBLE INCAdd 11.00%416,4690.43
≡
MRCY – MERCURY SYS INC
Add 33.00%
1,713,761
−1.14
TRMB – TRIMBLE INC
Buy
3,760,371
12.91
≡FIS – FIDELITY NATL INFORMATION SVBuy3,314,41412.85
≡MRCY – MERCURY SYS INCBuy5,211,13512.30
≡EHAB 10/21/22 P17.5 – ENHABIT INCBuy2,083,7771.39