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Livermore
Livermore
ZHEN

Castleark Management LLC

SEC CIK
0001106832
Latest filing
Aug 14, 2026

Holdings in Q1 2022

Holdings as of Mar 31, 2022, filed May 16, 2022. Long positions only; changes compare share counts with Q4 2021.

Institution overview
Positions
321
−5 vs. Q4 2021
Portfolio value
$2.32B
−$402.8M (−14.8%) vs. Q4 2021
Filed
May 16, 2022
SEC
Holdings of Castleark Management LLC in Q1 2022
SecurityClassSharesValue% of portfolioShare changeActionHistory
MSFTMicrosoft CorpStock395,500$121.9M5.3%−25,820−6.1%ReducedHistory
AAPLApple Inc.Stock646,670$112.9M4.9%−50,580−7.3%ReducedHistory
GOOGLAlphabet Inc.Stock30,481$84.8M3.7%+77+0.3%AddedHistory
NVDANVIDIA CorpStock273,358$74.6M3.2%−14,530−5.0%ReducedHistory
MAMastercard IncStock203,667$72.8M3.1%−10,830−5.0%ReducedHistory
ULTAUlta Beauty, Inc.Stock155,425$61.9M2.7%−8,200−5.0%ReducedHistory
SCHWSchwab Charles CorpStock721,875$60.9M2.6%+52,760+7.9%AddedHistory
VVisa Inc.Stock248,690$55.2M2.4%+16,200+7.0%AddedHistory
NKENIKE, Inc.Stock407,995$54.9M2.4%+34,180+9.1%AddedHistory
TSLATesla, Inc.Stock47,918$51.6M2.2%−5,080−9.6%ReducedHistory
LRCXLam Research CorpCOM92,530$49.7M2.1%−4,930−5.1%ReducedHistory
LLYEli Lilly & CoStock166,595$47.7M2.1%−8,870−5.1%ReducedHistory
MCHPMicrochip Technology IncStock597,230$44.9M1.9%−31,540−5.0%ReducedHistory
UNPUnion Pacific CorpStock158,145$43.2M1.9%+33,060+26.4%AddedHistory
EWEdwards Lifesciences CorpStock366,815$43.2M1.9%−19,680−5.1%ReducedHistory
AMZNAmazon Com IncStock12,899$42.0M1.8%−2,700−17.3%ReducedHistory
SPYSPDR S&P 500 ETF TrustETF81,330$36.7M1.6%+81,330NewHistory
DXCMDexcom IncCOM60,735$31.1M1.3%+1,220+2.0%AddedHistory
ASMLASML Holding NVADR43,660$29.2M1.3%−2,400−5.2%ReducedHistory
State Street Materials Select Sector SPDR ETF81369Y100ETF300,300$26.5M1.1%+96,300+47.2%Added–
LULUlululemon athletica inc.Stock72,233$26.4M1.1%+19,310+36.5%AddedHistory
ADBEAdobe Inc.Stock57,505$26.2M1.1%−3,100−5.1%ReducedHistory
LVSLas Vegas Sands CorpCOM664,109$25.8M1.1%−86,020−11.5%ReducedHistory
FCXFreeport-McMoran IncStock459,330$22.8M1.0%+434,320+1,736.6%AddedHistory
ELEstee Lauder Companies IncCL A83,300$22.7M1.0%+10,660+14.7%AddedHistory
MROMarathon Oil CorpCOM738,510$18.5M0.8%−256,000−25.7%ReducedHistory
WSCWillScot Holdings CorpCOM CL A419,259$16.4M0.7%−7,020−1.6%ReducedHistory
MSCIMSCI Inc.Stock29,710$14.9M0.6%−1,520−4.9%ReducedHistory
HDHome Depot, Inc.Stock44,954$13.5M0.6%−30,340−40.3%ReducedHistory
SWNSouthwestern Energy CoCOM1,849,790$13.3M0.6%+1,352,080+271.7%AddedHistory
EFOREverforth IncCOM113,325$13.2M0.6%−14,930−11.6%ReducedHistory
RRXRegal Rexnord CorpCOM85,775$12.8M0.6%−1,520−1.7%ReducedHistory
GLDSPDR Gold TrustETF68,475$12.4M0.5%00.0%UnchangedHistory
FFord Motor CoStock701,770$11.9M0.5%−276,360−28.3%ReducedHistory
OPCHOption Care Health, Inc.COM NEW407,555$11.6M0.5%+25,810+6.8%AddedHistory
ACHCAcadia Healthcare Company, Inc.COM169,220$11.1M0.5%+9,350+5.8%AddedHistory
CWSTCasella Waste Systems IncCL A124,945$11.0M0.5%−2,550−2.0%ReducedHistory
PLNTPlanet Fitness, Inc.CL A126,535$10.7M0.5%+20,160+19.0%AddedHistory
SWAVShockwave Medical, Inc.COM49,349$10.2M0.4%+4,990+11.2%AddedHistory
State Street Financial Select Sector SPDR ETF81369Y605ETF266,900$10.2M0.4%−241,500−47.5%Reduced–
CZRCaesars Entertainment, Inc.COM129,160$9.99M0.4%+14,490+12.6%AddedHistory
KBRKBR, Inc.COM181,929$9.96M0.4%+1,649+0.9%AddedHistory
PINGPing Identity Holding Corp.COM352,915$9.68M0.4%−4,560−1.3%ReducedHistory
SUMSummit Materials, Inc.CL A310,665$9.65M0.4%−6,190−2.0%ReducedHistory
OLEDUniversal Display CorpCOM57,415$9.59M0.4%−62,410−52.1%ReducedHistory
WMSAdvanced Drainage Systems, Inc.COM80,250$9.54M0.4%−1,950−2.4%ReducedHistory
SYNASYNAPTICS IncStock47,611$9.50M0.4%−4,350−8.4%ReducedHistory
TENBTenable Holdings, Inc.COM163,220$9.43M0.4%+163,220NewHistory
BOXBox IncCL A322,210$9.36M0.4%+51,080+18.8%AddedHistory
MTDRMatador Resources CoCOM176,500$9.35M0.4%+21,900+14.2%AddedHistory
NXSTNexstar Media Group, Inc.COMMON STOCK49,320$9.30M0.4%+9,240+23.1%AddedHistory
LPLALPL Financial Holdings Inc.COM50,565$9.24M0.4%−11,190−18.1%ReducedHistory
TNDMTandem Diabetes Care IncCOM NEW78,180$9.09M0.4%+4,380+5.9%AddedHistory
ZDZiff Davis, Inc.COM93,785$9.08M0.4%−16,850−15.2%ReducedHistory
EGPEastgroup Properties IncCOM43,180$8.78M0.4%+43,180NewHistory
OMCLOmnicell, Inc.COM67,690$8.77M0.4%+6,870+11.3%AddedHistory
HALHalliburton CoStock231,300$8.76M0.4%+231,300NewHistory
ENSGEnsign Group, IncCOM96,320$8.67M0.4%+96,320NewHistory
CNMDCONMED CorpCOM57,450$8.53M0.4%+57,450NewHistory
ATRCAtriCure, Inc.COM129,626$8.51M0.4%−2,710−2.0%ReducedHistory
MXLMaxlinear, IncCOM143,577$8.38M0.4%−72,020−33.4%ReducedHistory
State Street SPDR S&P Homebuilders ETF78464A888ETF132,200$8.36M0.4%−56,900−30.1%Reduced–
EVRIEveri Holdings Inc.COM396,048$8.32M0.4%−6,800−1.7%ReducedHistory
SMPLSimply Good Foods CoCOM217,300$8.25M0.4%+217,300NewHistory
NVEENV5 Global, Inc.COM61,584$8.21M0.4%−18,608−23.2%ReducedHistory
IRTCiRhythm Holdings, Inc.COM51,190$8.06M0.3%+51,190NewHistory
WCCWesco International IncCOM60,874$7.92M0.3%−24,060−28.3%ReducedHistory
LIVNLivaNova PLCSHS95,860$7.84M0.3%−1,930−2.0%ReducedHistory
WKWorkiva IncCOM CL A66,055$7.79M0.3%+17,840+37.0%AddedHistory
ATIAti IncStock284,760$7.64M0.3%+284,760NewHistory
INSPInspire Medical Systems, Inc.COM29,440$7.56M0.3%+29,440NewHistory
PBFPBF Energy Inc.CL A300,000$7.31M0.3%+300,000NewHistory
iShares MSCI Acwi Ex U.S. ETF464288240ETF139,850$7.31M0.3%−134,150−49.0%Reduced–
THRMGentherm IncCOM99,289$7.25M0.3%−30,230−23.3%ReducedHistory
AQUAEvoqua Water Technologies Corp.COM154,220$7.25M0.3%+154,220NewHistory
SSTKShutterstock, Inc.COM77,032$7.17M0.3%−2,140−2.7%ReducedHistory
SPTSprout Social, Inc.COM CL A89,074$7.14M0.3%−36,510−29.1%ReducedHistory
ETEnergy Transfer LPCOM UT LTD PTN627,660$7.02M0.3%−1,899,800−75.2%ReducedHistory
RCMR1 RCM Holdco Inc.COM260,230$6.96M0.3%+260,230NewHistory
SGRYSurgery Partners, Inc.Stock126,213$6.95M0.3%+34,460+37.6%AddedHistory
KRNTKornit Digital Ltd.SHS83,050$6.87M0.3%+9,870+13.5%AddedHistory
Barrick Gold Corp067901108COM276,340$6.78M0.3%00.0%Unchanged–
RPDRapid7, Inc.COM59,955$6.67M0.3%−37,420−38.4%ReducedHistory
KEYKeycorpCOM295,300$6.61M0.3%00.0%UnchangedHistory
LITELumentum Holdings Inc.COM67,250$6.56M0.3%+30,400+82.5%AddedHistory
CYTKCytokinetics IncCOM NEW177,475$6.53M0.3%+27,480+18.3%AddedHistory
WFCWells Fargo & CompanyStock134,700$6.53M0.3%00.0%UnchangedHistory
BHVNBiohaven Ltd.COM54,440$6.46M0.3%+9,990+22.5%AddedHistory
MGYMagnolia Oil & Gas CorpCL A272,060$6.43M0.3%+169,730+165.9%AddedHistory
GMGeneral Motors CoCOM145,695$6.37M0.3%−38,400−20.9%ReducedHistory
HBANHuntington Bancshares IncCOM435,700$6.37M0.3%00.0%UnchangedHistory
PENGPenguin Solutions, Inc.SHS246,160$6.36M0.3%+49,740+25.3%AddedConverted for a 2-for-1 splitHistory
MPLXMPLX LPCOM UNIT REP LTD186,662$6.19M0.3%00.0%UnchangedHistory
FIBKFirst Interstate Bancsystem IncCOM167,826$6.17M0.3%+167,826NewHistory
GTLSChart Industries IncCOM35,575$6.11M0.3%−33,900−48.8%ReducedHistory
iShares Tr464287234MSCI EMG MKT ETF135,300$6.11M0.3%00.0%Unchanged–
FOCSFocus Financial Partners Inc.COM CL A133,110$6.09M0.3%+10,720+8.8%AddedHistory
ZWSZurn Elkay Water Solutions CorpCOM170,830$6.05M0.3%+170,830NewHistory
MATMattel IncCOM269,450$5.98M0.3%+269,450NewHistory
WESWestern Midstream Partners, LPCOM UNIT LP INT232,770$5.87M0.3%+5,620+2.5%AddedHistory

Sold out since Q4 2021 (54)

Positions held at the end of Q4 2021 that are gone from this filing.

Positions of Castleark Management LLC sold out since Q4 2021
SecurityClassShares in Q4 2021Value in Q4 2021% of portfolio in Q4 2021History
ZTSZoetis Inc.Stock130,765$31.9M1.2%History
PYPLPayPal Holdings, Inc.Stock74,820$14.1M0.5%History
MTSIMACOM Technology Solutions Holdings, Inc.COM169,406$13.3M0.5%History
VICRVicor CorpCOM97,125$12.3M0.5%History
DHRDanaher CorpStock33,460$11.0M0.4%History
NTRANatera, Inc.COM105,739$9.88M0.4%History
MEDPMedpace Holdings, Inc.COM44,540$9.69M0.4%History
FOXFFox Factory Holding CorpCOM53,650$9.13M0.3%History
NTNXNutanix, Inc.Stock244,960$7.80M0.3%History
EXPEagle Materials IncCOM44,055$7.33M0.3%History
VRNSVaronis Systems IncCOM146,394$7.14M0.3%History
SMFGSumitomo Mitsui Financial Group, Inc.SPONSORED ADR1,045,000$7.10M0.3%History
OPRXOptimizeRx CorpCOM NEW113,822$7.07M0.3%History
GWBGreat Western Bancorp, Inc.COM199,200$6.76M0.2%History
UBSUBS Group AGStock376,400$6.73M0.2%History
DBDeutsche Bank AktiengesellschaftNAMEN AKT527,700$6.60M0.2%History
PUBMPubMatic, Inc.COM CL A193,040$6.57M0.2%History
BCSBarclays PLCADR623,500$6.45M0.2%History
JPMJPMorgan Chase & CoStock38,070$6.03M0.2%History
CYRXCryoport, Inc.COM PAR $0.00195,899$5.67M0.2%History
DOORMasonite International CorpCOM46,475$5.48M0.2%History
SKINSkinHealth Systems Inc.COM CL A220,250$5.32M0.2%History
BLBlackline, Inc.COM51,360$5.32M0.2%History
ARWRArrowhead Pharmaceuticals, Inc.COM76,020$5.04M0.2%History
NTLAIntellia Therapeutics, Inc.COM42,075$4.97M0.2%History
YETIYETI Holdings, Inc.COM59,755$4.95M0.2%History
DOMOHuckleberry.ai, Inc.Stock97,394$4.83M0.2%History
ADNTAdient plcStock92,780$4.44M0.2%History
NEWRNew Relic, Inc.COM40,020$4.40M0.2%History
LSCCLattice Semiconductor CorpCOM55,155$4.25M0.2%History
CROXCrocs, Inc.COM31,755$4.07M0.1%History
RAREUltragenyx Pharmaceutical Inc.COM48,160$4.05M0.1%History
KRTXKaruna Therapeutics, Inc.COM23,950$3.14M0.1%History
GDYNGrid Dynamics Holdings, Inc.CL A81,126$3.08M0.1%History
SICPSilvergate Capital CorpCL A20,330$3.01M0.1%History
ARVNArvinas, Inc.COM34,730$2.85M0.1%History
RVLVRevolve Group, Inc.CL A46,080$2.58M0.1%History
TFIITFI International Inc.COM22,547$2.53M0.1%History
APLSApellis Pharmaceuticals, Inc.COM53,130$2.51M0.1%History
ILMNIllumina, Inc.COM5,605$2.13M0.1%History
CLHClean Harbors IncCOM20,810$2.08M0.1%History
AOSSmith A O CorpCOM22,170$1.90M0.1%History
MANHManhattan Associates IncStock10,680$1.66M0.1%History
TMHCTaylor Morrison Home CorpCOM40,000$1.40M0.1%History
PSXPPhillips 66 Partners LPCOM UNIT REP INT34,587$1.25M<0.1%History
ESTCElastic N.V.ORD SHS8,890$1.09M<0.1%History
NEENextera Energy IncStock10,240$956.0K<0.1%History
SESea LtdSPONSORD ADS4,105$918.0K<0.1%History
TEAMAtlassian CorpCL A1,955$745.0K<0.1%History
CLVTClarivate PLCORD SHS30,150$709.0K<0.1%History
ETRNMidstream Co LLCCOM67,973$703.0K<0.1%History
PAGSPagSeguro Digital Ltd.COM CL A19,590$514.0K<0.1%History
OKTAOkta, Inc.CL A925$207.0K<0.1%History
CSGPCostar Group, Inc.COM2,550$202.0K<0.1%History