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  • OCONNOR, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS (LLC) (Data extracted from 13F, 13D, 13G and Form 4)

OCONNOR, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS (LLC)

AUM: $0.35 M
13-F Portfolio Value: $1.95 B
Last 13-F Filed: Q2 2025
Concentration in top 10: 53.24%
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Stock Company % Portfolio Shares Held Market Value Change in Shares % Change Quarter End Price Source
BPMCBLUEPRINT11.25%1,713,587$219,647,5821,698,72211427.7%$128.1813F
CHXCHAMPIONX9.60%7,546,703$187,460,103-271,940-3.48%$24.8413F
ANSSANSYS INC8.86%492,829$173,091,401-7,604-1.52%$351.2213F
HESHESS CORP7.49%1,055,429$146,219,134-1,856,094-63.75%$138.5413F
JNPRJUNIPER NE6.13%3,000,000$119,790,000-3,250,113-52%$39.9313F
SWTXSPRINGWORK3.33%1,385,517$65,105,4441,346,5493455.53%$46.9913F
ESGRENSTAR GRO2.02%117,537$39,534,74550,65875.75%$336.3613F
NVDANVIDIA COR1.87%231,572$36,586,06093,93768.25%$157.9913F
PTONPELOTON IN (PRN)1.35%27,352,000$26,428,870No Change$0.9713F
HALOHALOZYME T (PRN)1.31%22,500,000$25,672,5007,500,00050%$1.1413F
SOSOUTHERN C1.06%226,135$20,765,97716,4357.84%$91.8313F
OXYOCCIDENTAL1.00%466,400$19,593,464No Change$42.0113F
CNPCENTERPOIN0.99%524,615$19,274,355524,615New$36.7413F
SOSOUTHERN C (PRN)0.99%17,500,000$19,241,25017,500,000New$1.113F
DUKDUKE ENERG0.87%144,040$16,996,720144,040New$11813F
MELIMERCADOLIB0.87%6,528$17,061,7772,04845.71%$2613.6313F
MATMATTEL INC0.85%843,229$16,628,476-125,800-12.98%$19.7213F
AWKAMERICAN W (PRN)0.82%16,000,000$16,080,00016,000,000New$1.0113F
DUKDUKE ENERG (PRN)0.81%15,000,000$15,885,00015,000,000New$1.0613F
DKNGDRAFTKINGS (PRN)0.78%17,000,000$15,266,00015,000,000750%$0.913F
SPOTSPOTIFY US (PRN)0.78%10,000,000$15,156,000No Change$1.5213F
URIUNITED REN0.61%15,850$11,941,39015,850New$753.413F
PNRPENTAIR PL0.61%115,305$11,837,21122,70524.52%$102.6613F
DOVDOVER CORP0.57%61,100$11,195,35361,100New$183.2313F
FEFIRSTENERG (PRN)0.52%10,000,000$10,075,00010,000,000New$1.0113F
CLHCLEAN HARB0.51%43,000$9,940,74043,000New$231.1813F
APDAIR PRODS0.50%34,475$9,724,018-520-1.49%$282.0613F
ITUBITAU UNIBA0.50%1,447,730$9,830,087-341,858-19.1%$6.7913F
NRGNRG ENERGY0.50%61,170$9,822,6792,6044.45%$160.5813F
AMZNAMAZON COM0.49%43,190$9,475,454-5,145-10.64%$219.3913F
ETRENTERGY CO0.49%114,130$9,486,486-29,470-20.52%$83.1213F
IRINGERSOLL0.49%116,100$9,657,198101,100674%$83.1813F
AKAMAKAMAI TEC (PRN)0.47%9,500,000$9,234,0002,000,00026.67%$0.9713F
CCKCROWN HLDG0.46%87,300$8,990,15487,300New$102.9813F
CROXCROCS INC0.44%84,000$8,507,52084,000New$101.2813F
FBINFORTUNE BR0.44%167,475$8,621,613167,475New$51.4813F
VMCVULCAN MAT0.44%33,050$8,620,101-3,850-10.43%$260.8213F
PDDPDD HOLDIN0.43%80,143$8,387,76637,84389.46%$104.6613F
CDNSCADENCE DE0.42%26,400$8,135,16026,400New$308.1513F
LXLEXINFINTE0.42%1,149,107$8,285,06137,3573.36%$7.2113F
AMDADVANCED M0.40%54,921$7,793,29048,921815.35%$141.913F
UPSUNITED PAR0.39%75,180$7,588,669-5,820-7.19%$100.9413F
AVGOBROADCOM I0.38%26,804$7,388,52310,22861.7%$275.6513F
CFLTCONFLUENT0.38%300,000$7,479,000300,000New$24.9313F
KSPIKASPI KZ J0.37%85,555$7,262,76423,53537.95%$84.8913F
LYVLIVE NATIO0.36%46,500$7,034,52046,500New$151.2813F
MSMORGAN STA0.36%50,000$7,043,00050,000New$140.8613F
VSTVISTRA COR0.35%34,975$6,778,50534,975New$193.8113F
DALDELTA AIR0.34%135,148$6,646,57924,03421.63%$49.1813F
IPINTERNATIO0.34%140,600$6,584,298-48,100-25.49%$46.8313F
BTGB2GOLD COR0.33%1,784,416$6,441,742-138,184-7.19%$3.6113F
NSCNORFOLK SO0.32%24,088$6,165,805-24,025-49.93%$255.9713F
ULTAULTA BEAUT0.32%13,217$6,183,17713,217New$467.8213F
BABOEING CO0.30%27,675$5,798,743-6,325-18.6%$209.5313F
ERJEMBRAER S.0.30%102,995$5,861,445-102,450-49.87%$56.9113F
FIVEFIVE BELOW0.30%45,000$5,903,10045,000New$131.1813F
FLYYSPIRIT AVI0.30%1,156,492$5,770,8951,156,492New$4.9913F
NVTNVENT ELEC0.30%80,000$5,860,00080,000New$73.2513F
LINLINDE PLC0.29%12,170$5,709,921-14,500-54.37%$469.1813F
AMATAPPLIED MA0.28%30,000$5,492,10030,000New$183.0713F
INTCINTEL CORP0.28%244,210$5,470,304244,210New$22.413F
IWMISHARES TR0.28%25,000$5,394,75025,000New$215.7913F
SHWSHERWIN WI0.28%15,800$5,425,088-7,070-30.91%$343.3613F
HONHONEYWELL0.27%22,636$5,271,472-614-2.64%$232.8813F
TTANSERVICETIT0.27%50,000$5,359,00050,000New$107.1813F
WABWABTEC0.27%25,030$5,240,03025,030New$209.3513F
ARCOARCOS DORA0.27%661,072$5,215,85870,71511.98%$7.8913F
CYHCOMMUNITY0.26%1,500,000$5,100,000250,00020%$3.413F
GTENGORES HLDG0.26%500,000$5,122,500500,000New$10.2513F
INTRINTER & CO0.26%682,166$5,068,493-187,109-21.52%$7.4313F
FOURSHIFT4 PMT0.24%46,775$4,635,87046,775New$99.1113F
BACQBLEICHROED0.24%450,000$4,648,500450,000New$10.3313F
AALAMERICAN A (Put)0.23%10,810,000$4,408,9501,385,00014.69%$0.4113F
PAGSPAGSEGURO0.22%438,078$4,223,072438,078New$9.6413F
BEAGBOLD EAGLE0.21%400,000$4,188,000400,000New$10.4713F
TVATEXAS VENT0.21%400,000$4,032,000400,000New$10.0813F
BTIBRITISH AM0.20%82,631$3,910,92582,631New$47.3313F
DLTRDOLLAR TRE0.19%38,000$3,763,52023,100155.03%$99.0413F
ECVTECOVYST IN0.19%450,000$3,703,500450,000New$8.2313F
NOCNORTHROP G0.19%7,500$3,749,8507,500New$499.9813F
ODFLOLD DOMINI0.19%23,320$3,784,83623,320New$162.313F
PONYPONY AI IN0.19%279,208$3,685,546279,208New$13.213F
TECKTECK RESOU0.19%90,000$3,634,20090,000New$40.3813F
TEVATEVA PHARM0.19%223,596$3,747,469122,808121.85%$16.7613F
ANSCAGRICULTUR0.19%334,160$3,625,636No Change$10.8513F
CCOCLEAR CHAN0.18%3,000,000$3,510,0003,000,000New$1.1713F
XYFX FINL0.18%205,614$3,590,02048,90031.2%$17.4613F
GMABGENMAB A/S0.17%158,719$3,279,13586,842120.82%$20.6613F
ELLAUDER EST0.17%40,000$3,232,00040,000New$80.813F
GENVRGEN DIGITA0.17%412,214$3,328,628412,214New$8.0713F
CGCTCARTESIAN0.17%331,000$3,311,655331,000New$10.0113F
GLOBGLOBANT S0.17%35,927$3,263,6095,58218.4%$90.8413F
BKRBAKER HUGH0.16%80,000$3,067,20080,000New$38.3413F
BBARBANCO BBVA0.16%192,490$3,168,385192,490New$16.4613F
DXCMDEXCOM INC0.16%35,668$3,113,460-183-0.51%$87.2913F
METAMETA PLATF0.16%4,238$3,128,0254,238New$738.0913F
IONSIONIS PHAR0.16%81,251$3,210,227-9,528-10.5%$39.5113F
VALEVALE S A0.16%327,259$3,177,685No Change$9.7113F
ASAMER SPORT0.16%80,000$3,100,800No Change$38.7613F
BAPCREDICORP0.16%14,076$3,146,2685,76569.37%$223.5213F
ACELACCEL ENTE0.15%246,728$2,903,989No Change$11.7713F
AZNASTRAZENEC0.15%42,998$3,004,70036,387550.4%$69.8813F
BSACBANCO SANT0.15%119,793$3,021,1794,3503.77%$25.2213F
BAXBAXTER INT0.14%88,787$2,688,47034,63263.95%$30.2813F
COOCOOPER COS0.14%37,214$2,648,14814,93667.04%$71.1613F
INSMINSMED INC0.14%26,301$2,646,9338743.44%$100.6413F
LCIDLUCID GROU (Put)0.14%2,965,100$2,649,440125,0004.4%$0.8913F
PHPARKER-HAN0.14%4,020$2,807,849-2,460-37.96%$698.4713F
GPATGP-ACT III0.14%250,000$2,637,500250,000New$10.5513F
NCLHNORWEGIAN0.14%135,000$2,737,800-43,031-24.17%$20.2813F
ABBVABBVIE INC0.13%13,297$2,468,18912,3241266.6%$185.6213F
BDXBECTON DIC0.13%15,107$2,602,181-7,981-34.57%$172.2513F
BYNDBEYOND MEA (PRN)0.13%29,000,000$2,549,390No Change$0.0913F
ITGRINTEGER HL0.13%21,375$2,628,48421,375New$122.9713F
MEOHMETHANEX C0.13%76,000$2,515,60076,000New$33.113F
MUMICRON TEC0.13%20,000$2,465,00020,000New$123.2513F
AXTAAXALTA COA0.13%85,250$2,531,072No Change$29.6913F
CCIXCHURCHILL0.13%250,000$2,630,000250,000New$10.5213F
CHACCRANE HBR0.13%250,000$2,517,500250,000New$10.0713F
IPODDUNE ACQUI0.13%250,000$2,512,500250,000New$10.0513F
EGHAEGH ACQUIS0.13%250,000$2,502,500250,000New$10.0113F
EQVEQV VENTUR0.13%242,175$2,545,259No Change$10.5113F
MLACMOUNTAIN L0.13%250,000$2,565,000250,000New$10.2613F
NETDNABORS ENE0.13%233,912$2,596,423No Change$11.113F
SVCCSTELLAR V0.13%250,000$2,557,500250,000New$10.2313F
VCICVINE HILL0.13%250,000$2,602,500-225,000-47.37%$10.4113F
ACMRACM RESH I0.12%92,121$2,385,93492,121New$25.913F
ALGNALIGN TECH0.12%12,755$2,414,9043,70540.94%$189.3313F
ONCBEONE MEDI0.12%9,377$2,269,8907,497398.78%$242.0713F
STRKMICROSTRAT0.12%20,000$2,427,670No Change$121.3813F
NHICNEWHOLD IN0.12%225,000$2,288,250225,000New$10.1713F
ALCALCON AG0.12%25,555$2,255,99517,555219.44%$88.2813F
ASMLASML HOLDI0.12%3,000$2,404,1703,000New$801.3913F
CXCEMEX SAB0.11%299,870$2,078,099299,870New$6.9313F
COMMCOMMSCOPE0.11%250,000$2,070,000-250,000-50%$8.2813F
YMMFULL TRUCK0.11%186,090$2,197,723-71,660-27.8%$11.8113F
MSFTMICROSOFT0.11%4,449$2,212,977-345-7.2%$497.4113F
CAEPCANTOR EQU0.11%200,000$2,110,000200,000New$10.5513F
CCCMCOLUMBUS C0.11%200,000$2,124,000200,000New$10.6213F
GTESGATES INDL0.11%94,620$2,179,099-453,815-82.75%$23.0313F
LEGTLEGATO MER0.11%193,740$2,069,143No Change$10.6813F
OACCOAKTREE AC0.11%200,000$2,096,000-250,000-55.56%$10.4813F
ADTADT INC DE0.10%229,607$1,944,771No Change$8.4713F
AGIOAGIOS PHAR0.10%56,810$1,889,501-1,912-3.26%$33.2613F
CCJCAMECO COR0.10%25,000$1,855,75025,000New$74.2313F
HWMHOWMET AER0.10%10,674$1,986,75210,674New$186.1313F
INCYINCYTE COR0.10%28,924$1,969,724-11,979-29.29%$68.113F
MGNIMAGNITE IN (Call)0.10%432,000$1,931,200325,000303.74%$4.4713F
MRVLMARVELL TE0.10%24,688$1,910,85124,688New$77.413F
OCULOCULAR THE0.10%210,205$1,950,702-48,158-18.64%$9.2813F
RZLTREZOLUTE I0.10%455,701$2,032,426-47,207-9.39%$4.4613F
RIGLRIGEL PHAR0.10%104,890$1,964,590-5,494-4.98%$18.7313F
ATIIARCHIMEDES0.10%200,000$2,046,000200,000New$10.2313F
AACIARMADA ACQ0.10%200,000$2,006,000200,000New$10.0313F
CRAQCAL REDWOO0.10%200,000$1,994,000200,000New$9.9713F
LOKVLIVE OAK A0.10%174,923$1,871,676174,923New$10.713F
IMCRIMMUNOCORE0.09%53,343$1,673,9038,14718.03%$31.3813F
VRDNVIRIDIAN T0.09%131,294$1,835,49024,20622.6%$13.9813F
CATCATERPILLA0.08%4,200$1,630,4824,200New$388.2113F
IQVIQVIA HLDG0.08%10,275$1,619,2375,275105.5%$157.5913F
TMOTHERMO FIS0.08%3,770$1,528,5843,770New$405.4613F
VISTVISTA ENER0.08%31,391$1,500,80431,391New$47.8113F
WMTWALMART IN0.08%15,000$1,466,700-15,000-50%$97.7813F
AACBARTIUS II0.08%160,000$1,619,200160,000New$10.1213F
POLEANDRETTI A0.08%150,000$1,557,000No Change$10.3813F
GPRKGEOPARK LT0.08%228,367$1,488,953228,367New$6.5213F
SOULSOULPOWER0.08%150,000$1,506,000150,000New$10.0413F
ATECALPHATEC H0.07%119,094$1,321,943-75,143-38.69%$11.113F
AUTLAUTOLUS TH0.07%565,000$1,288,200565,000New$2.2813F
HLTHILTON WOR0.07%5,000$1,331,7005,000New$266.3413F
KIDSORTHOPEDIA0.07%65,866$1,414,802-8,996-12.02%$21.4813F
PRCTPROCEPT BI0.07%25,226$1,453,018-2,774-9.91%$57.613F
SNSHARKNINJA0.07%13,000$1,286,870-22,000-62.86%$98.9913F
AMEAMETEK INC0.06%6,085$1,101,1426,085New$180.9613F
ANNXANNEXON IN0.06%492,698$1,182,47525,8795.54%$2.413F
ARGXARGENX SE0.06%2,191$1,207,7232,191New$551.2213F
CRNXCRINETICS0.06%39,978$1,149,767-635-1.56%$28.7613F
CROXCROCS INC (Call)0.06%125,000$1,243,750125,000New$9.9513F
DASHDOORDASH I0.06%5,000$1,232,5505,000New$246.5113F
HTZHERTZ GLOB (Put)0.06%1,194,300$1,180,994No Change$0.9913F
IRTCIRHYTHM TE0.06%7,993$1,230,602-5,513-40.82%$153.9613F
IDYAIDEAYA BIO0.06%51,600$1,084,632-17,874-25.73%$21.0213F
INSPINSPIRE ME0.06%9,522$1,235,6701,52219.03%$129.7713F
MLYSMINERALYS0.06%79,723$1,078,6526,3758.69%$13.5313F
MIRMMIRUM PHAR0.06%21,409$1,089,504-1,151-5.1%$50.8913F
EWEDWARDS LI0.06%14,510$1,134,8273,59032.88%$78.2113F
SESEA LTD0.06%6,800$1,087,5926,800New$159.9413F
TKOTKO GROUP0.06%6,000$1,091,7006,000New$181.9513F
RAREULTRAGENYX0.06%31,861$1,158,466-55,950-63.72%$36.3613F
VFCV F CORP0.06%100,000$1,175,000100,000New$11.7513F
ALCYALCHEMY IN0.06%100,248$1,174,907No Change$11.7213F
HYACHAYMAKER A0.06%100,248$1,106,738No Change$11.0413F
SIGSIGNET JEW0.06%15,000$1,193,25015,000New$79.5513F
ACADACADIA PHA0.05%43,000$927,51043,000New$21.5713F
AXGNAXOGEN INC0.05%81,429$883,505-5,999-6.86%$10.8513F
BCYCBICYCLE TH0.05%143,800$999,410-4,922-3.31%$6.9513F
BILIBILIBILI I0.05%43,230$927,28443,230New$21.4513F
COSTCOSTCO WHS0.05%1,000$989,940No Change$989.9413F
NVNOENVVENO ME0.05%241,161$962,232-54,870-18.54%$3.9913F
ESABESAB CORPO0.05%8,900$1,072,8958,900New$120.5513F
GEVGE VERNOVA0.05%1,680$888,9721,680New$529.1513F
BEKEKE HLDGS I0.05%51,814$919,18051,814New$17.7413F
KALVKALVISTA P0.05%79,460$898,295-90,232-53.17%$11.313F
LRMRLARIMAR TH0.05%307,198$887,802127,17170.64%$2.8913F
LEVILEVI STRAU0.05%50,000$924,50050,000New$18.4913F
MATMATTEL INC (Call)0.05%355,000$985,125355,000New$2.7813F
PVLAPALVELLA T0.05%43,994$991,625-4,670-9.6%$22.5413F
PRAXPRAXIS PRE0.05%21,892$920,559-4,901-18.29%$42.0513F
REPLREPLIMUNE0.05%114,082$1,059,822-136,338-54.44%$9.2913F
SRRKSCHOLAR RO0.05%25,426$900,589-2,191-7.93%$35.4213F
TMETENCENT MU0.05%55,000$1,071,95055,000New$19.4913F
TERNTERNS PHAR0.05%273,619$1,020,599-62,525-18.6%$3.7313F
VSTMVERASTEM I0.05%255,253$1,059,300-266,707-51.1%$4.1513F
ZKZEEKR INTE0.05%39,100$997,05039,100New$25.513F
ALDFALDEL FINL0.05%100,000$1,049,000100,000New$10.4913F
COPLCOPLEY ACQ0.05%100,000$1,007,000100,000New$10.0713F
JACSJACKSON AC0.05%100,000$1,030,000100,000New$10.313F
KNSAKINIKSA PH0.05%37,602$1,040,447-101,673-73%$27.6713F
NPACNEW PROVID0.05%100,000$1,016,000100,000New$10.1613F
OYSEUOYSTER ENT0.05%100,000$1,012,000100,000New$10.1213F
PELIPELICAN AC0.05%100,000$1,000,000100,000New$1013F
PMTRPERIMETER0.05%100,000$1,020,500100,000New$10.2113F
RAAQREAL ASSET0.05%89,645$910,79389,645New$10.1613F
DRDBROMAN DBDR0.05%100,000$1,031,000100,000New$10.3113F
SZZLSIZZLE ACQ0.05%100,000$1,005,000100,000New$10.0513F
QUREUNIQURE NV0.05%63,475$884,842-51,414-44.75%$13.9413F
ADPTADAPTIVE B0.04%73,441$855,588-114,348-60.89%$11.6513F
ANABANAPTYSBIO0.04%38,528$855,322-8,523-18.11%$22.213F
DAWNDAY ONE BI0.04%107,249$697,118-6,001-5.3%$6.513F
EWTXEDGEWISE T0.04%55,292$724,87815,27838.18%$13.1113F
ELBMElectra Battery Materials Corp0.04%918,210$853,935918,210New13D
FFORD MTR C (Put)0.04%924,900$867,523729,400373.09%$0.9413F
HOGHARLEY DAV (Put)0.04%375,000$840,625135,00056.25%$2.2413F
OFIXORTHOFIX M0.04%67,518$752,826-21,541-24.19%$11.1513F
PTCTPTC THERAP0.04%14,548$710,524-8,805-37.7%$48.8413F
SLNOSOLENO THE0.04%10,362$868,128-6,660-39.13%$83.7813F
PTGXPROTAGONIS0.04%14,523$802,6861,1838.87%$55.2713F
SNDXSYNDAX PHA0.04%90,441$846,98031,00352.16%$9.3713F
TGTXTG THERAPE0.04%19,000$683,81019,000New$35.9913F
SPKLSPARK I AC0.04%66,832$728,469No Change$10.913F
RIGTRANSOCEAN (Put)0.04%883,400$765,72880,0009.96%$0.8713F
MRUSMERUS N V0.04%16,704$878,630-7,528-31.07%$52.613F
AXSMAXSOME THE0.03%6,400$668,0966,400New$104.3913F
BBIOBRIDGEBIO0.03%13,771$594,632-11,721-45.98%$43.1813F
CGONCG ONCOLOG0.03%26,000$676,00026,000New$2613F
CCCHEMOURS C (Put)0.03%46,900$637,840No Change$13.613F
COMMCOMMSCOPE (Call)0.03%550,000$577,500100,00022.22%$1.0513F
IRONDISC MEDIC0.03%12,317$652,308-1,304-9.57%$52.9613F
KALAKALA BIO I0.03%138,556$659,527-32,361-18.93%$4.7613F
KROSKEROS THER0.03%37,891$505,845-77,627-67.2%$13.3513F