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Livermore
Livermore
ZHEN

Castleark Management LLC

SEC CIK
0001106832
Latest filing
Aug 14, 2026

Holdings in Q2 2023

Holdings as of Jun 30, 2023, filed Aug 16, 2023. Long positions only; changes compare share counts with Q1 2023.

Institution overview
Positions
274
+2 vs. Q1 2023
Portfolio value
$2.21B
+$172.1M (+8.5%) vs. Q1 2023
Filed
Aug 16, 2023
SEC
Holdings of Castleark Management LLC in Q2 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
MSFTMicrosoft CorpStock409,280$139.4M6.3%+112,680+38.0%AddedHistory
AAPLApple Inc.Stock650,085$126.1M5.7%−2,540−0.4%ReducedHistory
NVDANVIDIA CorpStock219,148$92.7M4.2%+540+0.2%AddedHistory
MAMastercard IncStock187,007$73.5M3.3%−18,670−9.1%ReducedHistory
NOWServiceNow, Inc.Stock119,540$67.2M3.0%+300+0.3%AddedHistory
GOOGLAlphabet Inc.Stock546,730$65.4M3.0%+1,390+0.3%AddedHistory
DXCMDexcom IncCOM453,280$58.3M2.6%+1,130+0.2%AddedHistory
LLYEli Lilly & CoStock122,865$57.6M2.6%+290+0.2%AddedHistory
LVSLas Vegas Sands CorpCOM979,539$56.8M2.6%+2,600+0.3%AddedHistory
NKENIKE, Inc.Stock460,080$50.8M2.3%+81,900+21.7%AddedHistory
AMZNAmazon Com IncStock384,700$50.1M2.3%+213,610+124.9%AddedHistory
State Street Industrial Select Sector SPDR ETF81369Y704ETF447,010$48.0M2.2%00.0%Unchanged–
VVisa Inc.Stock200,075$47.5M2.2%−50,690−20.2%ReducedHistory
METAMeta Platforms, Inc.Stock154,739$44.4M2.0%+154,130+25,308.7%AddedHistory
LRCXLam Research CorpCOM58,605$37.7M1.7%+130+0.2%AddedHistory
SYKStryker CorpStock122,120$37.3M1.7%+44,760+57.9%AddedHistory
ASMLASML Holding NVADR47,200$34.2M1.5%+130+0.3%AddedHistory
LULUlululemon athletica inc.Stock87,298$33.0M1.5%+34,580+65.6%AddedHistory
ISRGIntuitive Surgical IncCOM NEW93,770$32.1M1.5%+35,580+61.1%AddedHistory
iShares MSCI Eafe ETF464287465ETF364,410$26.4M1.2%00.0%Unchanged–
iShares Tr464287234MSCI EMG MKT ETF662,100$26.2M1.2%−660,110−49.9%Reduced–
ELEstee Lauder Companies IncCL A113,210$22.2M1.0%−31,190−21.6%ReducedHistory
SPDR Series Trust78468R556SP O&G EXPL PRO161,360$20.8M0.9%+161,360New–
UNHUnitedHealth Group IncStock39,910$19.2M0.9%−49,090−55.2%ReducedHistory
MSCIMSCI Inc.Stock39,825$18.7M0.8%+110+0.3%AddedHistory
ADBEAdobe Inc.Stock36,435$17.8M0.8%+3,650+11.1%AddedHistory
DEDeere & CoStock40,090$16.2M0.7%+100+0.3%AddedHistory
SLBSLB LimitedStock303,780$14.9M0.7%−372,560−55.1%ReducedHistory
GLDSPDR Gold TrustETF79,475$14.2M0.6%−9,820−11.0%ReducedHistory
SPDR Series Trust78464A714ST STR SP RETAIL221,940$14.1M0.6%+84,920+62.0%Added–
iShares Inc46434G822MSCI JAPAN ETF222,650$13.8M0.6%−222,650−50.0%Reduced–
CELHCelsius Holdings, Inc.COM NEW84,350$12.6M0.6%+120+0.1%AddedHistory
State Street SPDR S&P Biotech ETF78464A870ETF143,110$11.9M0.5%+143,110New–
XOMExxonMobil Holdings CorpCOM109,430$11.7M0.5%−108,980−49.9%ReducedHistory
APGAPi Group CorpCOM STK415,303$11.3M0.5%−3,710−0.9%ReducedHistory
ALGNAlign Technology IncCOM31,830$11.3M0.5%+31,830NewHistory
TMDXTransMedics Group, Inc.COM132,535$11.1M0.5%+1,260+1.0%AddedHistory
ATIAti IncStock248,230$11.0M0.5%−22,450−8.3%ReducedHistory
ORCLOracle CorpStock92,070$11.0M0.5%+92,070NewHistory
State Street SPDR S&P Homebuilders ETF78464A888ETF132,200$10.6M0.5%00.0%Unchanged–
INSPInspire Medical Systems, Inc.COM32,190$10.5M0.5%−7,260−18.4%ReducedHistory
WINGWingstop Inc.COM49,400$9.89M0.4%−5,490−10.0%ReducedHistory
MANHManhattan Associates IncStock48,720$9.74M0.4%−6,340−11.5%ReducedHistory
iShares Tr464288752US HOME CONS ETF113,590$9.71M0.4%+113,590New–
RMBSRambus IncCOM149,700$9.61M0.4%+83,430+125.9%AddedHistory
AMDAdvanced Micro Devices IncStock80,110$9.13M0.4%+80,110NewHistory
PHMPultegroup IncCOM117,400$9.12M0.4%−12,180−9.4%ReducedHistory
MSMorgan StanleyStock105,960$9.05M0.4%00.0%UnchangedHistory
SMCISuper Micro Computer, Inc.COM35,860$8.94M0.4%+35,860NewHistory
iShares U.S. Medical Devices ETF464288810ETF157,940$8.92M0.4%+157,940New–
FTITechnipFMC plcCOM526,240$8.75M0.4%+63,030+13.6%AddedHistory
DVDoubleVerify Holdings, Inc.COM221,480$8.62M0.4%−1,990−0.9%ReducedHistory
MMSMaximus, Inc.COM100,420$8.49M0.4%+10,810+12.1%AddedHistory
KBRKBR, Inc.COM124,566$8.10M0.4%−1,120−0.9%ReducedHistory
PNRPENTAIR plcSHS123,090$7.95M0.4%+123,090NewHistory
SUMSummit Materials, Inc.CL A209,446$7.93M0.4%+64,190+44.2%AddedHistory
JPMJPMorgan Chase & CoStock51,730$7.52M0.3%+51,730NewHistory
BCOBrinks CoCOM107,600$7.30M0.3%+37,300+53.1%AddedHistory
PENPenumbra IncCOM21,130$7.27M0.3%−4,100−16.3%ReducedHistory
MTZMastec IncCOM61,080$7.21M0.3%−4,350−6.6%ReducedHistory
IBPInstalled Building Products, Inc.COM51,000$7.15M0.3%+51,000NewHistory
VCVisteon CorpCOM NEW49,580$7.12M0.3%−440−0.9%ReducedHistory
FIVEFive Below, IncCOM35,910$7.06M0.3%−330−0.9%ReducedHistory
FLYWFlywire CorpCOM VTG227,120$7.05M0.3%+5,760+2.6%AddedHistory
IRDMIridium Communications Inc.COM112,770$7.01M0.3%+12,480+12.4%AddedHistory
iShares MSCI Acwi Ex U.S. ETF464288240ETF139,850$6.88M0.3%00.0%Unchanged–
ATECAlphatec Holdings, Inc.COM NEW380,590$6.84M0.3%+146,030+62.3%AddedHistory
AXTAAxalta Coating Systems Ltd.COM207,940$6.82M0.3%+10,350+5.2%AddedHistory
TTEKTetra Tech IncCOM41,500$6.80M0.3%−370−0.9%ReducedHistory
MYRGMyr Group Inc.COM48,150$6.66M0.3%+21,260+79.1%AddedHistory
BRBRBellring Brands, Inc.Stock179,960$6.59M0.3%−1,610−0.9%ReducedHistory
BYDBoyd Gaming CorpCOM93,350$6.48M0.3%−970−1.0%ReducedHistory
FOURShift4 Payments, Inc.CL A94,140$6.39M0.3%−29,730−24.0%ReducedHistory
SGRYSurgery Partners, Inc.Stock140,990$6.34M0.3%+140,990NewHistory
THCTenet Healthcare CorpCOM NEW77,220$6.28M0.3%+77,220NewHistory
PSNParsons CorpCOM129,760$6.25M0.3%+129,760NewHistory
POWIPower Integrations IncCOM65,660$6.22M0.3%+65,660NewHistory
CRNCCerence Inc.COM211,553$6.18M0.3%+71,580+51.1%AddedHistory
HURNHuron Consulting Group Inc.Stock72,780$6.18M0.3%−420−0.6%ReducedHistory
FBINFortune Brands Innovations, Inc.COM84,710$6.09M0.3%+84,710NewHistory
ETRNMidstream Co LLCCOM635,740$6.08M0.3%−462,810−42.1%ReducedHistory
ACLSAxcelis Technologies IncStock33,030$6.06M0.3%−320−1.0%ReducedHistory
FIXComfort Systems USA IncCOM36,540$6.00M0.3%−310−0.8%ReducedHistory
OIO-I Glass, Inc.COM280,760$5.99M0.3%−2,530−0.9%ReducedHistory
MMSIMerit Medical Systems IncCOM71,390$5.97M0.3%+20,560+40.4%AddedHistory
ACVAACV Auctions Inc.COM CL A343,958$5.94M0.3%+343,958NewHistory
TREXTrex Co IncCOM88,830$5.82M0.3%+88,830NewHistory
STRLSterling Infrastructure, Inc.COM104,264$5.82M0.3%−8,980−7.9%ReducedHistory
SAIASaia IncCOM16,630$5.69M0.3%−150−0.9%ReducedHistory
KNXKnight-Swift Transportation Holdings Inc.CL A101,980$5.67M0.3%−920−0.9%ReducedHistory
AXONAxon Enterprise, Inc.COM28,990$5.66M0.3%−9,020−23.7%ReducedHistory
BABoeing CoStock26,640$5.63M0.3%+23,240+683.5%AddedHistory
MGNIMagnite, Inc.COM409,820$5.59M0.3%+132,040+47.5%AddedHistory
ITRIItron, Inc.COM77,430$5.58M0.3%+77,430NewHistory
ROKRockwell Automation, IncStock16,600$5.47M0.2%+16,600NewHistory
ETNEaton Corp plcStock27,150$5.46M0.2%+27,150NewHistory
KRTXKaruna Therapeutics, Inc.COM24,706$5.36M0.2%−230−0.9%ReducedHistory
WWDWoodward, Inc.COM45,010$5.35M0.2%+45,010NewHistory
KBHKB HomeCOM102,640$5.31M0.2%−32,810−24.2%ReducedHistory
CSXCSX CorpStock155,610$5.31M0.2%+155,610NewHistory

Sold out since Q1 2023 (52)

Positions held at the end of Q1 2023 that are gone from this filing.

Positions of Castleark Management LLC sold out since Q1 2023
SecurityClassShares in Q1 2023Value in Q1 2023% of portfolio in Q1 2023History
ULTAUlta Beauty, Inc.Stock70,580$38.5M1.9%History
PYPLPayPal Holdings, Inc.Stock403,500$30.6M1.5%History
State Street SPDR S&P Regional Banking ETF78464A698ETF325,000$14.3M0.7%–
UNPUnion Pacific CorpStock54,205$10.9M0.5%History
WSCWillScot Holdings CorpCOM CL A174,174$8.17M0.4%History
PLNTPlanet Fitness, Inc.CL A92,850$7.21M0.4%History
PDPagerDuty, Inc.COM192,360$6.73M0.3%History
MASIMasimo CorpCOM35,240$6.50M0.3%History
EXLSExlService Holdings, Inc.COM38,760$6.27M0.3%History
BOXBox IncCL A227,950$6.11M0.3%History
XPOFXponential Fitness, Inc.COM CL A198,469$6.03M0.3%History
FOXFFox Factory Holding CorpCOM49,120$5.96M0.3%History
PIImpinj IncCOM42,665$5.78M0.3%History
MODNModel N, Inc.COM170,397$5.70M0.3%History
AYXAlteryx, Inc.COM CL A96,830$5.70M0.3%History
EVHEvolent Health, Inc.CL A168,180$5.46M0.3%History
BOOTBoot Barn Holdings, Inc.COM68,850$5.28M0.3%History
CERTCertara, Inc.COM214,620$5.17M0.3%History
QRVOQorvo, Inc.Stock50,050$5.08M0.2%History
DOCNDigitalOcean Holdings, Inc.COM127,270$4.99M0.2%History
HLIHoulihan Lokey, Inc.CL A55,450$4.85M0.2%History
OPCHOption Care Health, Inc.COM NEW152,055$4.83M0.2%History
SLABSilicon Laboratories Inc.Stock26,560$4.65M0.2%History
CALYCallaway Golf CoCOM207,870$4.49M0.2%History
DECKDeckers Outdoor CorpCOM9,740$4.38M0.2%History
ZDZiff Davis, Inc.COM53,040$4.14M0.2%History
SUPNSupernus Pharmaceuticals, Inc.COM110,880$4.02M0.2%History
SGISomnigroup International Inc.COM99,090$3.91M0.2%History
VRTVertiv Holdings CoCOM CL A258,350$3.70M0.2%History
SILKSilk Road Medical IncCOM94,470$3.70M0.2%History
QDELQuidelOrtho CorpCOM39,330$3.50M0.2%History
AGYSAgilysys IncCOM41,747$3.44M0.2%History
ANFAbercrombie & Fitch CoCL A123,060$3.41M0.2%History
TEXTerex CorpStock67,070$3.24M0.2%History
DCPDCP Midstream, LPCOM UT LTD PTN67,875$2.83M0.1%History
AMBAAmbarella IncSHS36,340$2.81M0.1%History
ABGAsbury Automotive Group IncCOM12,750$2.68M0.1%History
SYNASYNAPTICS IncStock23,740$2.64M0.1%History
URBNUrban Outfitters IncCOM93,880$2.60M0.1%History
APTVAptiv PLCSHS22,000$2.47M0.1%History
ACMRACM Research, Inc.Stock204,550$2.39M0.1%History
NOVNOV Inc.COM108,890$2.02M0.1%History
TXRHTexas Roadhouse, Inc.COM17,340$1.87M0.1%History
CYTKCytokinetics IncCOM NEW34,625$1.22M0.1%History
HLITHarmonic Inc.COM76,528$1.12M0.1%History
CZRCaesars Entertainment, Inc.COM21,330$1.04M0.1%History
SQMChemical & Mining Co of Chile IncSPON ADR SER B10,580$857.6K<0.1%History
DKDelek US Holdings, Inc.COM35,410$812.7K<0.1%History
PDDPDD Holdings Inc.SPONSORED ADS7,590$576.1K<0.1%History
ALBAlbemarle CorpStock2,410$532.7K<0.1%History
OKTAOkta, Inc.CL A5,960$514.0K<0.1%History
Atlantica Sustainable Infr PG0751N103SHS6,820$201.6K<0.1%–