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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
≡THS – TREEHOUSE FOODS INCSell−5,821,337−7.15
≡FRPT – FRESHPET INCSell−557,390−1.77
≡MRCY – MERCURY SYS INCReduce 17.00%−852,057−0.19
≡MKL – MARKEL GROUP INCReduce 7.00%−5,912−0.11
≡SPY – STATE STR SPDR S&P 500 ETF TReduce 12.00%−47,6720.03
Q4 2025filed Feb 17, 261 new2 added3 reduced1 exited
≡TRMB – TRIMBLE INCSell−1,881,399−7.44
≡MKL – MARKEL GROUP INCReduce 45.00%−66,192−4.56
≡MRCY – MERCURY SYS INCReduce 17.00%−1,000,000−3.49
≡FRPT – FRESHPET INCReduce 47.00%−490,746
Q3 2025filed Nov 14, 253 new1 added4 reduced1 exited
≡TRMB – TRIMBLE INCReduce 48.00%−1,727,498−6.33
≡LW – LAMB WESTON HLDGS INCReduce 31.00%−2,223,584−4.75
≡MRCY – MERCURY SYS INCReduce 12.00%−793,9324.06
≡SPY – SPDR S&P 500 ETF TRReduce 25.00%−126,416
Q2 2025filed Aug 14, 251 new3 added2 reduced1 exited
≡LW – LAMB WESTON HLDGS INCReduce 9.00%−753,207−3.14
≡FIS – FIDELITY NATL INFORMATION SVSell−496,895−1.92
≡TRMB – TRIMBLE INCReduce 9.00%−336,3300.40
Q1 2025filed May 15, 251 new4 added1 reduced1 exited
≡WOLF – WOLFSPEED INCSell−4,988,216−1.63
≡TRMB – TRIMBLE INCReduce 6.00%−232,861−1.15
Q4 2024filed Feb 14, 252 new1 added4 reduced2 exited
≡FYBR – FRONTIER COMMUNICATIONS PARESell−3,910,213−7.21
≡FIS – FIDELITY NATL INFORMATION SVReduce 69.00%−1,090,034−4.93
≡SPY – SPDR S&P 500 ETF TRReduce 10.00%−49,700−1.89
≡WOLF – WOLFSPEED INCReduce 19.00%−1,177,717
Q3 2024filed Nov 14, 242 new3 added2 reduced2 exited
≡FYBR – FRONTIER COMMUNICATIONS PAREReduce 59.00%−5,667,520−7.45
≡FIS – FIDELITY NATL INFORMATION SVReduce 50.00%−1,555,686−6.95
≡BL – BLACKLINE INCSell−1,154,435−3.27
≡QDEL – QUIDELORTHO CORPSell−1,026,413
Q2 2024filed Aug 14, 243 new2 added3 reduced1 exited
≡FRPT – FRESHPET INCSell−1,093,477−6.92
≡SPY – SPDR S&P 500 ETF TRReduce 36.00%−241,800−5.49
≡QDEL – QUIDELORTHO CORPReduce 14.00%−169,387−1.14
≡FIS – FIDELITY NATL INFORMATION SVReduce 9.00%−296,199
Q1 2024filed May 15, 242 new3 added1 reduced
≡FRPT – FRESHPET INCReduce 61.00%−1,700,477−8.72
Q4 2023filed Feb 14, 248 new1 exited
≡WOLF – WOLFSPEED INCSell−936,000−100.00
−1.03
−3.45
≡WEX – WEX INCSell−164,029−1.21
−1.47
≡TRMB – TRIMBLE INCReduce 14.00%−702,856−1.21
≡FTRE – FORTREA HLDGS INCSell−692,408−0.72
−1.99
−0.09