Fund Holdings — Atika Capital Management LLC

Total Portfolio Value
$633.63M
Total Bought
$176.86M
Total Sold
$268.50M
Net Transaction
-$91.64M
Filing Period:
Securities
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SharesValue ($K)
Q4 2025
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Q1 2026
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Change
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Q4 2025
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Q1 2026
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Weight (%)
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Change
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VERTIV HOLDINGS CO(VRT)636,100666,100+30,000103,055166,91126.34%+63,857
ORUKA THERAPEUTICS INC(ORKA)0229,900+229,900011,2771.78%+11,277
WESTERN DIGITAL CORP(WDC)037,717+37,717010,2021.61%+10,202
ECHOSTAR CORP(ECHO)124,806182,000+57,19413,56621,3073.36%+7,740
VANECK ETF TRUST
GOLD MINERS ETF
080,000+80,00007,3421.16%+7,342
UNITED THERAPEUTICS CORP DEL(UTHR)012,350+12,35007,3231.16%+7,323
KARMAN HLDGS INC(KRMN)090,500+90,50007,2451.14%+7,245
SEAGATE TECHNOLOGY HLDNGS PL
ORD SHS
51,90753,500+1,59314,29520,9593.31%+6,664
MASTEC INC(MTZ)55,99857,636+1,63812,17218,5442.93%+6,372
META PLATFORMS INC(META)010,000+10,00005,7210.90%+5,721
CLEAN HARBORS INC(CLH)3,00021,855+18,8557036,2660.99%+5,563
DIANTHUS THERAPEUTICS INC(DNTH)134,528128,800-5,7285,54410,8091.71%+5,265
SITIME CORP(SITM)014,805+14,80505,1130.81%+5,113
NLIGHT INC(LASR)066,000+66,00003,7630.59%+3,763
CURTISS WRIGHT CORP(CW)9,88213,000+3,1185,4488,8551.40%+3,407
MAZE THERAPEUTICS INC(MAZE)0111,500+111,50003,3280.53%+3,328
CIENA CORP(CIEN)60,00043,651-16,34914,03216,9472.67%+2,914
ACADIA HEALTHCARE COMPANY IN(ACHC)0122,600+122,60002,8680.45%+2,868
TERNS PHARMACEUTICALS INC321,165300,000-21,16512,97515,8162.50%+2,841
KRYSTAL BIOTECH INC(KRYS)010,625+10,62502,7450.43%+2,745
BRIDGEBIO PHARMA INC(BBIO)035,200+35,20002,6140.41%+2,614
CLOUDFLARE INC(NET)54,90065,000+10,10010,82413,4122.12%+2,589
HUT 8 CORP(HUT)049,300+49,30002,3130.36%+2,313
HEICO CORP NEW010,575+10,57502,2320.35%+2,232
TTM TECHNOLOGIES INC(TTMI)101,47393,000-8,4737,0029,0601.43%+2,058
DBV TECHNOLOGIES S A(DBVT)206,881271,300+64,4193,9665,6670.89%+1,702
ROCKET LAB CORP(RKLB)62,11586,000+23,8854,3335,5230.87%+1,190
NETFLIX INC.(NFLX)180,000180,000016,87717,3072.73%+430
FERGUSON ENTERPRISES INC(FERG)29,30029,30006,5236,8351.08%+311
ASCENDIS PHARMA A/S(ASND)20,64219,125-1,5174,4024,3740.69%-27
REDDIT INC(RDDT)2,0000-2,0004600—-460
XENON PHARMACEUTICALS INC(XENE)92,50659,900-32,6064,1463,4830.55%-663
ALPHABET INC(GOOG)42,20043,250+1,05013,24212,4071.96%-836
PROTAGONIST THERAPEUTICS INC86,00062,100-23,9007,5116,5451.03%-966
BBB FOODS INC(TBBB)142,28295,218-47,0644,7513,3680.53%-1,383
IMMUNOME INC(IMNM)334,341262,900-71,4417,1825,7500.91%-1,432
FIVE BELOW INC(FIVE)56,20039,480-16,72010,5869,0201.42%-1,565
CECO ENVIRONMENTAL CORP(CECO)29,8040-29,8041,7840—-1,784
BWX TECHNOLOGIES INC(BWXT)108,90082,550-26,35018,82216,8812.66%-1,942
ROCKET COS INC(RKT)130,0000-130,0002,5170—-2,517
WARBY PARKER INC(WRBY)248,971135,000-113,9715,4252,8440.45%-2,581
GUARDANT HEALTH INC(GH)108,00091,000-17,00011,0318,4061.33%-2,625
APPFOLIO INC(APPF)44,50047,500+3,00010,3537,4961.18%-2,856
QXO INC(QXO)420,000264,253-155,7478,1025,1320.81%-2,970
APPLIED OPTOELECTRONICS INC(AAOI)87,6570-87,6573,0560—-3,056
RAPT THERAPEUTICS INC94,2450-94,2453,1920—-3,192
HEICO CORP NEW(HEI)26,30019,265-7,0358,5105,2820.83%-3,228
GE AEROSPACE(GE)25,94815,510-10,4387,9934,4010.69%-3,591
ABERCROMBIE & FITCH CO29,0000-29,0003,6500—-3,650
IONIS PHARMACEUTICALS INC(IONS)47,4880-47,4883,7570—-3,757
KINIKSA PHARMACEUTICALS(KNSA)93,9700-93,9703,8760—-3,876
ALNYLAM PHARMACEUTICALS INC(ALNY)10,3390-10,3394,1110—-4,111
MERCADOLIBRE INC(MELI)5,9474,510-1,43711,9797,7981.23%-4,181
ABIVAX SA(ABVX)55,00028,800-26,2007,4173,2070.51%-4,210
BATH & BODY WORKS INC225,0000-225,0004,5180—-4,518
FIGURE TECHNOLOGY SOLUTIO(FGRS)111,4470-111,4474,5510—-4,551
THE REALREAL INC(REAL)565,000451,055-113,9458,9164,0960.65%-4,820
MEDLINE INC(MDLN)117,8000-117,8004,9480—-4,948
ROBINHOOD MKTS INC(HOOD)51,5000-51,5005,8250—-5,825
SHARKNINJA INC(SN)52,6000-52,6005,8860—-5,886
INTUITIVE SURGICAL INC57,21657,216032,40526,3764.16%-6,029
RH(RH)35,0000-35,0006,2700—-6,270
ELI LILLY & CO(LLY)41,10041,100044,16937,8035.97%-6,367
ROKU INC(ROKU)61,0000-61,0006,6180—-6,618
COGENT BIOSCIENCES INC(COGT)506,000293,200-212,80017,97311,2851.78%-6,688
EMBRAER S.A.(EMBJ)115,9300-115,9307,4620—-7,462
TEVA PHARMACEUTICAL INDS LTD(TEVA)717,000477,000-240,00022,37814,3672.27%-8,010
CARLISLE COS INC(CSL)25,3000-25,3008,0920—-8,092
LEMONADE INC(LMND)113,9170-113,9178,1090—-8,109
AMAZON COM INC(AMZN)80,00043,700-36,30018,4669,1011.44%-9,364
MONGODB INC(MDB)22,3260-22,3269,3700—-9,370
TALEN ENERGY CORP(TLN)42,10018,490-23,61015,7815,9030.93%-9,878
AXSOME THERAPEUTICS INC(AXSM)55,5000-55,50010,1370—-10,137
DOORDASH INC(DASH)46,0000-46,00010,4180—-10,418
INSMED INC(INSM)77,2000-77,20013,4360—-13,436
TESLA INC(TSLA)30,0000-30,00013,4920—-13,492
MADRIGAL PHARMACEUTICALS(MDGL)34,0000-34,00019,8000—-19,800
SHOPIFY INC(SHOP)124,0000-124,00019,9600—-19,960
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Atika Capital Management LLC — 13F Holdings — Q1 2026 | TickerTrail