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Data sourced from SEC EDGAR 13F filings

© 2026 Super Investor · Not financial advice

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
≡THS – TREEHOUSE FOODS INCAdd 19.00%910,387−1.19
≡RPD – RAPID7 INCAdd 40.00%1,623,8581.04
≡FRPT – FRESHPET INCAdd 37.00%272,000
Q1 2025filed May 15, 251 new4 added1 reduced1 exited
≡MKL – MARKEL GROUP INCAdd 43.00%47,0965.81
≡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 new1 added4 reduced2 exited
≡LW – LAMB WESTON HLDGS INCAdd 210.00%4,829,33915.71
≡MKLCALL – MARKEL GROUP INCBuy108,9269.25
≡MKLCALL – MARKEL GROUP INCBuy69,0005.86
Q3 2024filed Nov 14, 242 new3 added2 reduced2 exited
≡LWCALL – LAMB WESTON HLDGS INCBuy3,526,75411.85
≡LWCALL – LAMB WESTON HLDGS INCBuy2,302,0007.74
≡TRMB – TRIMBLE INCAdd 17.00%703,4002.07
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
≡WOLF – WOLFSPEED INCAdd 35.00%1,608,052
Q1 2024filed May 15, 242 new3 added1 reduced
≡WOLF – WOLFSPEED INCBuy4,557,8817.35
≡QDEL – QUIDELORTHO CORPBuy1,195,8003.13
≡SPY – SPDR S&P 500 ETF TRAdd 23.00%126,8002.47
≡FYBR – FRONTIER COMMUNICATIONS PAREAdd 8.00%698,600
Q4 2023filed Feb 14, 248 new1 exited
≡SPY – SPDR S&P 500 ETF TRBuy553,93317.00
≡FRPT – FRESHPET INCBuy2,793,95415.65
≡FYBR – FRONTIER COMMUNICATIONS PAREBuy9,023,47614.76
≡THS – TREEHOUSE FOODS INCBuy4,907,68913.13
772,194
−0.75
0.28
−1.68
≡LW – LAMB WESTON HLDGS INCAdd 12.00%854,087−1.46
≡
RPD – RAPID7 INC
Add 34.00%
931,154
0.68
≡SPY – SPDR S&P 500 ETF TRAdd 9.00%40,0300.29
0.86
≡TRMB – TRIMBLE INCAdd 11.00%416,4690.43
−1.74
≡MRCY – MERCURY SYS INCAdd 33.00%1,713,761−1.14
≡TRMB – TRIMBLE INCBuy3,760,37112.91
≡FIS – FIDELITY NATL INFORMATION SVBuy3,314,41412.85
≡MRCY – MERCURY SYS INCBuy5,211,13512.30
≡EHAB – ENHABIT INCBuy2,083,7771.39