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  • WESTCHESTER CAPITAL MANAGEMENT, LLC (Data extracted from 13F, 13D, 13G and Form 4)

WESTCHESTER CAPITAL MANAGEMENT, LLC

AUM: $3.97 B
13-F Portfolio Value: $2.21 B
Last 13-F Filed: Q1 2026
Concentration in top 10: 44.9%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
WBSWEBSTER FINL CORP5.77%1,833,149$127,257,2041,833,149New$69.4213F
UNFUNIFIRST CORP MASS2.95%258,466$65,027,462258,466New$251.5913F
CWANCLEARWATER ANALYTICS HLDGS I2.8%2,617,694$61,908,4642,617,694New$23.6513F
CTRACOTERRA ENERGY INC2.53%1,588,341$55,814,3031,588,341New$35.1413F
DBRGDIGITALBRIDGE GROUP INC2.05%2,938,348$45,309,3262,938,348New$15.4213F
PENPENUMBRA INC1.14%76,630$25,162,99476,630New$328.3713F
MASIMASIMO CORP1.12%138,428$24,622,188138,428New$177.8713F
QRVOQORVO INC0.93%263,895$20,425,473263,895New$77.413F
OSONESTREAM INC0.74%677,498$16,259,952677,498New$2413F
JHGJANUS HENDERSON GROUP PLC0.54%230,719$11,852,036230,719New$51.3713F
APXTAPEX TREAS CORP0.45%1,000,000$9,990,000500,000New$9.9913F
APLSAPELLIS PHARMACEUTICALS INC0.41%227,489$9,151,882227,489New$40.2313F
GSRFGSR IV ACQUISITION CORP0.41%900,000$9,027,000900,000New$10.0313F
RDAGREPUBLIC DIGITAL ACQUISITION0.38%825,000$8,431,500825,000New$10.2213F
BBARRICK MNG CORP0.29%155,500$6,342,845155,500New$40.7913F
BBARRICK MNG CORP (Put)0.29%155,100$6,326,529155,100New$40.7913F
MLAAUMOUNTAIN LAKE ACQUISIT CORP0.28%614,526$6,102,243614,526New$9.9313F
VALVALARIS LTD0.27%61,546$6,033,97061,546New$98.0413F
CZRCAESARS ENTERTAINMENT INC NE0.26%217,800$5,756,454217,800New$26.4313F
CZRCAESARS ENTERTAINMENT INC NE (Put)0.26%217,800$5,756,454217,800New$26.4313F
FDXFEDEX CORP0.25%15,600$5,556,40815,600New$356.1813F
FDXFEDEX CORP (Put)0.25%15,600$5,556,40815,600New$356.1813F
MCGAYORKVILLE ACQUISITION CORP.0.25%550,000$5,560,500550,000New$10.1113F
SCIISC II ACQUISITION CORP0.23%500,000$4,990,000500,000New$9.9813F
SSACUSPACSPHERE ACQUISITION CORP0.23%500,000$5,035,000500,000New$10.0713F
MMTXMILUNA ACQUISITION CORP0.2%450,000$4,504,500450,000New$10.0113F
MEVOUM EVO GBL ACQUISITION CORP I0.15%328,858$3,291,868328,858New$10.0113F
GIXXUGIGCAPITAL9 CORP0.14%300,000$3,012,000300,000New$10.0413F
LHXL3HARRIS TECHNOLOGIES INC (Put)0.12%7,900$2,726,6857,900New$345.1513F
AEAQACTIVATE ENERGY ACQUISIT COR0.11%250,000$2,472,500250,000New$9.8913F
ALOVUALDABRA 4 LQDTY OPP VEH INC0.11%250,000$2,492,500250,000New$9.9713F
WPACWHITE PEARL ACQUISITION CORP0.11%250,000$2,465,000250,000New$9.8613F
WSTNWESTIN ACQUISITION CORP0.1%226,200$2,259,738226,200New$9.9913F
CAQUUCAMBRIDGE ACQUISITION CORP0.09%200,000$1,992,000200,000New$9.9613F
MZYXUMOZAYYX ACQUISITION CORP0.09%200,000$1,988,001200,000New$9.9413F
SORNUSOREN ACQUISITION CORP0.09%200,000$1,986,001200,000New$9.9313F
MUZEUMUZERO ACQUISITION CORP0.09%200,000$1,986,000200,000New$9.9313F
WPACUWHITE PEARL ACQUISITION CORP0.09%205,324$2,073,773205,324New$10.113F
LATAGALATA ACQUISITION CORP II0.08%175,000$1,748,250175,000New$9.9913F
CMIIUCOLUMBUS CIRCLE CAP CORP II0.07%150,000$1,490,999150,000New$9.9413F
ILLUUILLUMINATION ACQUISITIO CORP0.07%150,000$1,488,000150,000New$9.9213F
IACOUIDEA ACQUISITION CORP0.07%150,000$1,486,500150,000New$9.9113F
PMTRPERIMETER ACQUISITION CORP I0.07%150,000$1,537,501150,000New$10.2513F
LEGOULEGATO MERGER CORP IV0.07%150,000$1,497,000150,000New$9.9813F
PTORUPRAETORIAN ACQUISITION CORP0.07%150,000$1,483,500150,000New$9.8913F
AACOUABONY ACQUISITION CORP I0.06%125,000$1,242,500125,000New$9.9413F
PAACUPROEM ACQUISITION CORP I0.06%122,188$1,219,436122,188New$9.9813F
ARCIUARCHIMEDES TECH SPAC PTNRS I0.05%100,000$997,999100,000New$9.9813F
BPACBLUEPORT ACQUISITION LTD0.05%100,000$1,001,000100,000New$10.0113F
LHXL3HARRIS TECHNOLOGIES INC0.04%2,666$920,1702,666New$345.1513F
BWIVUBLUE WTR ACQUISITION CORP IV0.04%100,000$992,000100,000New$9.9213F
CLBRUCOLOMBIER ACQUISITION CORP I0.04%87,212$887,81887,212New$10.1813F
GIXGIGCAPITAL9 CORP0.04%100,000$984,000100,000New$9.8413F
ZKPULAFAYETTE DIGITAL ACQUISITIO0.04%100,000$993,000100,000New$9.9313F
RNAATRIUM THERAPEUTICS INC0.03%55,236$738,50655,236New$13.3713F
SAAQUSPACE ASSET ACQUISITION CORP0.03%62,497$635,90762,497New$10.1813F
IEAGUINFINITE EAGLE ACQUISITION C0.02%50,000$508,00050,000New$10.1613F
KRAQUKRAKACQUISITION CORPORATION0.02%50,000$500,49950,000New$10.0113F
GSRFRGSR IV ACQUISITION CORP0.00808%92,854$178,28092,854New$1.9213F
BLUWWBLUE WTR ACQUISITION CORP. I0.00406%198,958$89,531198,958New$0.4513F
PACHWPIONEER ACQUISITION I CORP0.00405%424,999$89,292424,999New$0.2113F
WENNWWEN ACQUISITION CORP0.00279%192,324$61,640192,324New$0.3213F
CWANCLEARWATER ANALYTICS HLDGS I (Put)0.00225%2,100$49,6652,100New$23.6513F
GDENGOLDEN ENTMT INC0.00204%1,686$45,0001,686New$26.6913F
PMTRWPERIMETER ACQUISITION CORP I0.00204%74,998$44,99974,998New$0.613F
YCYWSAA MISSION ACQUISITION CORP0.0018%247,090$39,782247,090New$0.1613F
CRAQRCAL REDWOOD ACQUISITION CORP0.00122%150,000$27,000150,000New$0.1813F
OBAWWOXLEY BRIDGE ACQ LTD0.00086%99,997$19,00999,997New$0.1913F
RDAGWREPUBLIC DIGITAL ACQUISITION0.00075%37,499$16,49537,499New$0.4413F
LATAWGALATA ACQUISITION CORP II0.00063%58,331$14,01158,331New$0.2413F