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Livermore
Livermore
ZHEN

Castleark Management LLC

SEC CIK
0001106832
Latest filing
Aug 14, 2026

Holdings in Q4 2021

Holdings as of Dec 31, 2021, filed Feb 16, 2022. Long positions only; changes compare share counts with Q3 2021.

Institution overview
Positions
326
−2 vs. Q3 2021
Portfolio value
$2.72B
+$104.7M (+4.0%) vs. Q3 2021
Filed
Feb 16, 2022
SEC
Holdings of Castleark Management LLC in Q4 2021
SecurityClassSharesValue% of portfolioShare changeActionHistory
MSFTMicrosoft CorpStock421,320$141.7M5.2%−970−0.2%ReducedHistory
AAPLApple Inc.Stock697,250$123.8M4.6%−1,510−0.2%ReducedHistory
GOOGLAlphabet Inc.Stock30,404$88.1M3.2%+30,354+60,708.0%AddedHistory
NVDANVIDIA CorpStock287,888$84.7M3.1%−10,870−3.6%ReducedHistory
MAMastercard IncStock214,497$77.1M2.8%+20,480+10.6%AddedHistory
LRCXLam Research CorpCOM97,460$70.1M2.6%−210−0.2%ReducedHistory
ULTAUlta Beauty, Inc.Stock163,625$67.5M2.5%−360−0.2%ReducedHistory
NKENIKE, Inc.Stock373,815$62.3M2.3%−820−0.2%ReducedHistory
SCHWSchwab Charles CorpStock669,115$56.3M2.1%+221,020+49.3%AddedHistory
TSLATesla, Inc.Stock52,998$56.0M2.1%+5,800+12.3%AddedHistory
MCHPMicrochip Technology IncStock628,770$54.7M2.0%00.0%UnchangedConverted for a 2-for-1 splitHistory
AMZNAmazon Com IncStock15,599$52.0M1.9%−7,260−31.8%ReducedHistory
VVisa Inc.Stock232,490$50.4M1.9%+4,640+2.0%AddedHistory
EWEdwards Lifesciences CorpStock386,495$50.1M1.8%−840−0.2%ReducedHistory
LLYEli Lilly & CoStock175,465$48.5M1.8%−380−0.2%ReducedHistory
iShares MSCI Eafe ETF464287465ETF530,500$41.7M1.5%00.0%Unchanged–
ASMLASML Holding NVADR46,060$36.7M1.3%−100−0.2%ReducedHistory
ADBEAdobe Inc.Stock60,605$34.4M1.3%−140−0.2%ReducedHistory
DXCMDexcom IncCOM59,515$32.0M1.2%+470+0.8%AddedHistory
ZTSZoetis Inc.Stock130,765$31.9M1.2%−290−0.2%ReducedHistory
UNPUnion Pacific CorpStock125,085$31.5M1.2%+35,280+39.3%AddedHistory
HDHome Depot, Inc.Stock75,294$31.2M1.1%−160−0.2%ReducedHistory
LVSLas Vegas Sands CorpCOM750,129$28.2M1.0%−1,630−0.2%ReducedHistory
ELEstee Lauder Companies IncCL A72,640$26.9M1.0%+48,530+201.3%AddedHistory
ETEnergy Transfer LPCOM UT LTD PTN2,527,460$20.8M0.8%+1,820,800+257.7%AddedHistory
LULUlululemon athletica inc.Stock52,923$20.7M0.8%−455−0.9%ReducedHistory
FFord Motor CoStock978,130$20.3M0.7%−365,900−27.2%ReducedHistory
State Street Financial Select Sector SPDR ETF81369Y605ETF508,400$19.9M0.7%−499,740−49.6%Reduced–
OLEDUniversal Display CorpCOM119,825$19.8M0.7%−260−0.2%ReducedHistory
MSCIMSCI Inc.Stock31,230$19.1M0.7%+720+2.4%AddedHistory
State Street Materials Select Sector SPDR ETF81369Y100ETF204,000$18.5M0.7%00.0%Unchanged–
WSCWillScot Holdings CorpCOM CL A426,279$17.4M0.6%−43,405−9.2%ReducedHistory
MROMarathon Oil CorpCOM994,510$16.3M0.6%+852,680+601.2%AddedHistory
MXLMaxlinear, IncCOM215,597$16.3M0.6%−30,350−12.3%ReducedHistory
State Street SPDR S&P Homebuilders ETF78464A888ETF189,100$16.2M0.6%00.0%Unchanged–
EFOREverforth IncCOM128,255$15.8M0.6%−13,190−9.3%ReducedHistory
iShares MSCI Acwi Ex U.S. ETF464288240ETF274,000$15.2M0.6%+274,000New–
SYNASYNAPTICS IncStock51,961$15.0M0.6%−4,625−8.2%ReducedHistory
RRXRegal Rexnord CorpCOM87,295$14.9M0.5%−1,720−1.9%ReducedHistory
PNCPNC Financial Services Group, Inc.Stock72,365$14.5M0.5%00.0%UnchangedHistory
PYPLPayPal Holdings, Inc.Stock74,820$14.1M0.5%−91,060−54.9%ReducedHistory
SKYChampion Homes, Inc.Stock173,861$13.7M0.5%−17,925−9.3%ReducedHistory
PACKRanpak Holdings Corp.COM CL A355,440$13.4M0.5%−218,330−38.1%ReducedHistory
MTSIMACOM Technology Solutions Holdings, Inc.COM169,406$13.3M0.5%−17,315−9.3%ReducedHistory
SUMSummit Materials, Inc.CL A316,855$12.7M0.5%−32,915−9.4%ReducedHistory
CPRICapri Holdings LtdSHS191,778$12.4M0.5%−6,830−3.4%ReducedHistory
VICRVicor CorpCOM97,125$12.3M0.5%+7,470+8.3%AddedHistory
ZDZiff Davis, Inc.COM110,635$12.3M0.5%−11,395−9.3%ReducedHistory
iShares Russell 1000 Value ETF464287598ETF71,600$12.0M0.4%−286,400−80.0%Reduced–
ESIElement Solutions IncCOM490,684$11.9M0.4%−51,080−9.4%ReducedHistory
GLDSPDR Gold TrustETF68,475$11.7M0.4%00.0%UnchangedHistory
RPDRapid7, Inc.COM97,375$11.5M0.4%−10,040−9.3%ReducedHistory
CCitigroup IncStock188,810$11.4M0.4%00.0%UnchangedHistory
SPTSprout Social, Inc.COM CL A125,584$11.4M0.4%−39,845−24.1%ReducedHistory
THRMGentherm IncCOM129,519$11.3M0.4%+21,880+20.3%AddedHistory
WMSAdvanced Drainage Systems, Inc.COM82,200$11.2M0.4%−8,610−9.5%ReducedHistory
WCCWesco International IncCOM84,934$11.2M0.4%−49,225−36.7%ReducedHistory
KRNTKornit Digital Ltd.SHS73,180$11.1M0.4%−24,725−25.3%ReducedHistory
TNDMTandem Diabetes Care IncCOM NEW73,800$11.1M0.4%+42,810+138.1%AddedHistory
GTLSChart Industries IncCOM69,475$11.1M0.4%−355−0.5%ReducedHistory
NVEENV5 Global, Inc.COM80,192$11.1M0.4%−7,535−8.6%ReducedHistory
DHRDanaher CorpStock33,460$11.0M0.4%−26,340−44.0%ReducedHistory
OMCLOmnicell, Inc.COM60,820$11.0M0.4%−8,715−12.5%ReducedHistory
CWSTCasella Waste Systems IncCL A127,495$10.9M0.4%−13,125−9.3%ReducedHistory
OPCHOption Care Health, Inc.COM NEW381,745$10.9M0.4%+19,765+5.5%AddedHistory
GMGeneral Motors CoCOM184,095$10.8M0.4%+4,900+2.7%AddedHistory
CZRCaesars Entertainment, Inc.COM114,670$10.7M0.4%+1,540+1.4%AddedHistory
MASMasco CorpCOM143,800$10.1M0.4%00.0%UnchangedHistory
AZTAAzenta, Inc.COM96,770$9.98M0.4%+47,345+95.8%AddedHistory
LPLALPL Financial Holdings Inc.COM61,755$9.89M0.4%−2,305−3.6%ReducedHistory
NTRANatera, Inc.COM105,739$9.88M0.4%−10,740−9.2%ReducedHistory
ACHCAcadia Healthcare Company, Inc.COM159,870$9.70M0.4%−16,450−9.3%ReducedHistory
MEDPMedpace Holdings, Inc.COM44,540$9.69M0.4%+44,540NewHistory
PLNTPlanet Fitness, Inc.CL A106,375$9.63M0.4%+106,375NewHistory
SHYFShyft Group, Inc.COM194,544$9.56M0.4%−32,802−14.4%ReducedHistory
ATRCAtriCure, Inc.COM132,336$9.20M0.3%−13,630−9.3%ReducedHistory
FOXFFox Factory Holding CorpCOM53,650$9.13M0.3%+53,650NewHistory
SSTKShutterstock, Inc.COM79,172$8.78M0.3%−8,500−9.7%ReducedHistory
EVRIEveri Holdings Inc.COM402,848$8.60M0.3%−21,350−5.0%ReducedHistory
KBRKBR, Inc.COM180,280$8.59M0.3%+40,055+28.6%AddedHistory
LIVNLivaNova PLCSHS97,790$8.55M0.3%+7,230+8.0%AddedHistory
SMTCSemtech CorpStock93,266$8.29M0.3%+93,266NewHistory
LFUSLittelfuse IncCOM26,302$8.28M0.3%−2,620−9.1%ReducedHistory
PINGPing Identity Holding Corp.COM357,475$8.18M0.3%+126,100+54.5%AddedHistory
SWAVShockwave Medical, Inc.COM44,359$7.91M0.3%−17,950−28.8%ReducedHistory
NTNXNutanix, Inc.Stock244,960$7.80M0.3%−138,800−36.2%ReducedHistory
GPREGreen Plains Inc.COM221,215$7.69M0.3%−22,915−9.4%ReducedHistory
AMBAAmbarella IncSHS36,470$7.40M0.3%+36,470NewHistory
EXPEagle Materials IncCOM44,055$7.33M0.3%−4,525−9.3%ReducedHistory
FOCSFocus Financial Partners Inc.COM CL A122,390$7.31M0.3%+122,390NewHistory
PEverpure, Inc.CL A219,410$7.14M0.3%+219,410NewHistory
VRNSVaronis Systems IncCOM146,394$7.14M0.3%−78,960−35.0%ReducedHistory
BOXBox IncCL A271,130$7.10M0.3%−220−0.1%ReducedHistory
SMFGSumitomo Mitsui Financial Group, Inc.SPONSORED ADR1,045,000$7.10M0.3%+1,045,000NewHistory
OPRXOptimizeRx CorpCOM NEW113,822$7.07M0.3%−44,900−28.3%ReducedHistory
PENGPenguin Solutions, Inc.SHS98,210$6.97M0.3%+98,210NewHistory
CYTKCytokinetics IncCOM NEW149,995$6.84M0.3%+149,995NewHistory
KEYKeycorpCOM295,300$6.83M0.3%+295,300NewHistory
GWBGreat Western Bancorp, Inc.COM199,200$6.76M0.2%+199,200NewHistory
UBSUBS Group AGStock376,400$6.73M0.2%+376,400NewHistory

Sold out since Q3 2021 (49)

Positions held at the end of Q3 2021 that are gone from this filing.

Positions of Castleark Management LLC sold out since Q3 2021
SecurityClassShares in Q3 2021Value in Q3 2021% of portfolio in Q3 2021History
HCAHCA Healthcare, Inc.COM130,885$31.8M1.2%History
iShares Inc464286608MSCI EURZONE ETF309,000$14.9M0.6%–
SPDR Series Trust78468R556SP O&G EXPL PRO129,000$12.5M0.5%–
CVLTCommvault Systems IncCOM133,375$10.0M0.4%History
CRNCCerence Inc.COM103,046$9.90M0.4%History
CSTLCastle Biosciences IncCOM147,867$9.83M0.4%History
MYGNMyriad Genetics IncCOM292,850$9.46M0.4%History
PARPar Technology CorpCOM150,484$9.26M0.4%History
HALOHalozyme Therapeutics, Inc.COM219,787$8.94M0.3%History
ROGRogers CorpCOM45,015$8.39M0.3%History
SKXSkechers USA IncCL A182,290$7.68M0.3%History
VCELVericel CorpCOM153,160$7.47M0.3%History
SONOSonos IncCOM222,200$7.19M0.3%History
PLANAnaplan, Inc.COM101,660$6.19M0.2%History
SWTXSpringWorks Therapeutics, Inc.COM89,086$5.65M0.2%History
ENOVEnovis CORPCOM118,259$5.43M0.2%History
Vonage Holdings Corp92886T201COM329,720$5.32M0.2%–
TXNTexas Instruments IncStock27,150$5.22M0.2%History
ATECAlphatec Holdings, Inc.COM NEW411,475$5.02M0.2%History
ORGOOrganogenesis Holdings Inc.COM332,297$4.73M0.2%History
RDNTRadNet, Inc.COM159,463$4.67M0.2%History
VYXNCR Voyix CorpCOM119,925$4.65M0.2%History
CDNACareDx, Inc.COM71,720$4.54M0.2%History
State Street SPDR S&P Regional Banking ETF78464A698ETF66,948$4.54M0.2%–
VSATViasat IncCOM82,220$4.53M0.2%History
EEFTEuronet Worldwide, Inc.COM35,221$4.48M0.2%History
VCYTVeracyte, Inc.COM93,250$4.33M0.2%History
AGYSAgilysys IncCOM77,086$4.04M0.2%History
WWEWorld Wrestling Entertainment, LLCCL A71,232$4.01M0.2%History
DNLIDenali Therapeutics Inc.COM66,145$3.34M0.1%History
APPSDigital Turbine, Inc.COM NEW47,027$3.23M0.1%History
FATEFate Therapeutics IncCOM52,908$3.14M0.1%History
MANManpowerGroup Inc.COM28,500$3.09M0.1%History
AXONAxon Enterprise, Inc.COM16,980$2.97M0.1%History
MEDMedifast IncCOM12,065$2.32M0.1%History
XECCimarex Energy CoCOM23,300$2.03M0.1%History
GMEDGlobus Medical IncStock18,590$1.42M0.1%History
HUBSHubSpot IncCOM2,045$1.38M0.1%History
SIBNSI-BONE, Inc.COM54,227$1.16M<0.1%History
ALLEAllegion plcORD SHS8,485$1.12M<0.1%History
TGTXTG Therapeutics, Inc.COM20,211$673.0K<0.1%History
REGIRenewable Energy Group, Inc.COM NEW3,430$172.0K<0.1%History
CHDChurch & Dwight Co IncCOM1,825$151.0K<0.1%History
CHGGChegg, IncCOM2,155$147.0K<0.1%History
SGENSeagen Inc.COM865$147.0K<0.1%History
NBIXNeurocrine Biosciences IncStock1,405$135.0K<0.1%History
APOApollo Global Management, Inc.COM CL A2,125$131.0K<0.1%History
PTONPeloton Interactive, Inc.CL A COM1,325$115.0K<0.1%History
INCYIncyte CorpCOM1,660$114.0K<0.1%History