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Livermore
Livermore
ZHEN

Castleark Management LLC

SEC CIK
0001106832
Latest filing
Aug 14, 2026

Holdings in Q2 2026

Holdings as of Jun 30, 2026, filed Aug 14, 2026. Long positions only; changes compare share counts with Q1 2026.

Institution overview
Positions
309
+17 vs. Q1 2026
Portfolio value
$3.71B
+$687.2M (+22.7%) vs. Q1 2026
Filed
Aug 14, 2026
SEC
Holdings of Castleark Management LLC in Q2 2026
SecurityClassSharesValue% of portfolioShare changeActionHistory
NVDANVIDIA CorpStock1,299,605$260.0M7.0%+41,593+3.3%AddedHistory
GOOGLAlphabet Inc.Stock507,093$181.2M4.9%+89,074+21.3%AddedHistory
AAPLApple Inc.Stock472,108$136.6M3.7%+122,097+34.9%AddedHistory
LRCXLam Research CorpStock283,808$123.0M3.3%−52,932−15.7%ReducedHistory
MSFTMicrosoft CorpStock292,770$109.2M2.9%+28,668+10.9%AddedHistory
LLYEli Lilly & CoStock87,697$105.2M2.8%+14,219+19.4%AddedHistory
AVGOBroadcom Inc.Stock243,896$92.1M2.5%+41,192+20.3%AddedHistory
State Street SPDR Portfolio Intermediate Term Corporate Bond ETF78464A375ETF2,688,380$90.0M2.4%00.0%Unchanged–
VVisa Inc.Stock236,166$81.0M2.2%+82,340+53.5%AddedHistory
ANETArista Networks, Inc.Stock473,319$80.4M2.2%+42,384+9.8%AddedHistory
iShares U.S. Treasury Bond ETF46429B267ETF3,329,569$75.8M2.0%00.0%Unchanged–
Vanguard Mortgage-Backed Securities ETF92206C771ETF1,487,800$69.6M1.9%00.0%Unchanged–
AMDAdvanced Micro Devices IncStock118,865$69.0M1.9%+29,911+33.6%AddedHistory
GILDGilead Sciences, Inc.Stock527,542$66.6M1.8%+185,392+54.2%AddedHistory
AMZNAmazon Com IncStock268,249$63.9M1.7%+22,388+9.1%AddedHistory
GEVGE Vernova Inc.Stock46,101$54.2M1.5%+4,612+11.1%AddedHistory
METAMeta Platforms, Inc.Stock93,744$52.8M1.4%−30,221−24.4%ReducedHistory
ADIAnalog Devices IncStock120,934$48.0M1.3%+43,026+55.2%AddedHistory
MAMastercard IncStock91,462$47.0M1.3%−551−0.6%ReducedHistory
MSMorgan StanleyStock208,542$43.6M1.2%+184,862+780.7%AddedHistory
SNOWSnowflake Inc.Stock166,818$42.5M1.1%+30,774+22.6%AddedHistory
VRTVertiv Holdings CoCOM CL A123,901$41.5M1.1%+11,538+10.3%AddedHistory
TPRTapestry, Inc.COM265,749$38.9M1.0%+61,279+30.0%AddedHistory
SPDR Series Trust78468R101ST SHO TREAS ETF1,334,080$38.7M1.0%00.0%Unchanged–
Vanguard Scottsdale FDS92206C813LG-TERM COR BD448,330$33.7M0.9%00.0%Unchanged–
NOWServiceNow, Inc.Stock321,623$31.9M0.9%+17,867+5.9%AddedHistory
iShares Tr46428865310-20 YR TRS ETF258,432$25.9M0.7%00.0%Unchanged–
BKNGBooking Holdings Inc.Stock136,776$24.4M0.7%+14,376+11.7%AddedConverted for a 25-for-1 splitHistory
MCOMoodys CorpStock53,444$24.2M0.7%+36,544+216.2%AddedHistory
TSLATesla, Inc.Stock48,070$20.2M0.5%+8,890+22.7%AddedHistory
CATCaterpillar IncStock18,980$20.2M0.5%+5,060+36.4%AddedHistory
GEGeneral Electric CoStock52,830$19.7M0.5%+22,150+72.2%AddedHistory
TSMTaiwan Semiconductor Manufacturing Co LtdADR41,210$19.7M0.5%00.0%UnchangedHistory
LGNDLigand Pharmaceuticals IncCOM NEW62,043$19.6M0.5%+13,347+27.4%AddedHistory
SNSharkNinja, Inc.COM SHS127,170$19.4M0.5%+127,170NewHistory
iShares Tr464288588MBS ETF204,235$19.3M0.5%00.0%Unchanged–
TWLOTwilio IncCL A92,390$19.1M0.5%+65,630+245.3%AddedHistory
BKRBaker Hughes CoCL A330,020$18.3M0.5%−57,170−14.8%ReducedHistory
GTXGarrett Motion Inc.Stock469,470$17.0M0.5%−18,530−3.8%ReducedHistory
JPMJPMorgan Chase & CoStock50,525$16.5M0.4%00.0%UnchangedHistory
ASNDAscendis Pharma A/SORD SHS61,696$16.5M0.4%−5,920−8.8%ReducedHistory
JBHTHunt J B Transport Services IncCOM56,520$16.4M0.4%+33,920+150.1%AddedHistory
FANGDiamondback Energy, Inc.Stock90,680$15.9M0.4%−54,340−37.5%ReducedHistory
GMGeneral Motors CoCOM199,440$15.4M0.4%+100,160+100.9%AddedHistory
BTSGBrightSpring Health Services, Inc.COM212,430$14.8M0.4%−34,770−14.1%ReducedHistory
SMTCSemtech CorpStock91,218$14.8M0.4%−16,540−15.3%ReducedHistory
FCFSFirstCash Holdings, Inc.COM68,190$14.8M0.4%−2,540−3.6%ReducedHistory
MARMarriott International IncStock37,910$14.0M0.4%+29,550+353.5%AddedHistory
iShares Tr464288638ISHS 5-10YR INVT259,994$13.8M0.4%00.0%Unchanged–
TJXTJX Companies IncStock90,620$13.7M0.4%00.0%UnchangedHistory
UBERUber Technologies, IncStock189,417$13.7M0.4%+19,541+11.5%AddedHistory
UCTTUltra Clean Holdings, Inc.COM95,770$13.7M0.4%−4,360−4.4%ReducedHistory
NOVTNovanta IncCOM83,190$13.5M0.4%+48,200+137.8%AddedHistory
AXONAxon Enterprise, Inc.COM23,423$13.1M0.4%+14,562+164.3%AddedHistory
BABoeing CoStock59,520$12.9M0.3%+33,440+128.2%AddedHistory
State Street SPDR S&P Biotech ETF78464A870ETF80,890$12.8M0.3%00.0%Unchanged–
ESIElement Solutions IncCOM263,644$12.6M0.3%−10,240−3.7%ReducedHistory
MYRGMyr Group Inc.COM24,920$12.5M0.3%+7,360+41.9%AddedHistory
GHGuardant Health, Inc.COM80,293$12.0M0.3%−79,990−49.9%ReducedHistory
iShares Tr46428743220 YR TR BD ETF137,270$11.9M0.3%00.0%Unchanged–
FROGJFrog LtdStock129,480$11.8M0.3%+36,650+39.5%AddedHistory
CCitigroup IncStock83,734$11.7M0.3%+36,250+76.3%AddedHistory
XPOXPO, Inc.COM57,079$11.7M0.3%+31,230+120.8%AddedHistory
KLICKulicke & Soffa Industries IncCOM86,950$11.6M0.3%−19,430−18.3%ReducedHistory
HQYHealthequity, Inc.COM127,770$11.5M0.3%+79,260+163.4%AddedHistory
XMTRXometry, Inc.CLASS A COM117,518$11.3M0.3%+62,750+114.6%AddedHistory
LSCCLattice Semiconductor CorpCOM73,979$11.3M0.3%−17,660−19.3%ReducedHistory
JAZZJazz Pharmaceuticals plcSHS USD46,920$11.3M0.3%−1,820−3.7%ReducedHistory
HLIOHelios Technologies, Inc.COM125,409$11.2M0.3%−35,000−21.8%ReducedHistory
KNSAKiniksa Pharmaceuticals International, plcORD SHS CL A174,032$11.1M0.3%−7,480−4.1%ReducedHistory
ESEEsco Technologies IncCOM31,572$11.1M0.3%+13,720+76.9%AddedHistory
VSECVse CorpCOM48,216$11.0M0.3%−1,870−3.7%ReducedHistory
TKRTimken CoCOM75,400$11.0M0.3%+35,010+86.7%AddedHistory
HXLHexcel CorpCOM106,050$10.6M0.3%+106,050NewHistory
BWABorgwarner IncCOM158,726$10.5M0.3%+10,220+6.9%AddedHistory
AIRAar CorpStock73,664$10.5M0.3%+13,400+22.2%AddedHistory
WMTWalmart Inc.Stock91,570$10.4M0.3%−21,700−19.2%ReducedHistory
CROXCrocs, Inc.COM85,810$10.4M0.3%+85,810NewHistory
EQTEQT CorpStock193,845$10.3M0.3%00.0%UnchangedHistory
SXTSensient Technologies CorpCOM82,920$10.2M0.3%+82,920NewHistory
MXLMaxlinear, IncCOM79,780$10.2M0.3%+79,780NewHistory
SEISolaris Energy Infrastructure, Inc.COM CL A125,806$10.1M0.3%+31,550+33.5%AddedHistory
EVREvercore Inc.CLASS A29,266$9.99M0.3%−1,150−3.8%ReducedHistory
SHOPShopify Inc.Stock87,164$9.95M0.3%−223,426−71.9%ReducedHistory
ALGMAllegro Microsystems, Inc.COM141,900$9.88M0.3%−5,520−3.7%ReducedHistory
ULSUL Solutions Inc.CLASS A COM SHS96,780$9.86M0.3%+96,780NewHistory
WMBWilliams Companies, Inc.COM131,770$9.80M0.3%00.0%UnchangedHistory
CWSTCasella Waste Systems IncCL A100,460$9.74M0.3%+100,460NewHistory
CDNLCardinal Infrastructure Group Inc.CL A103,023$9.70M0.3%+103,023NewHistory
SOLSSolstice Advanced Materials Inc.COM SHS108,980$9.66M0.3%−4,070−3.6%ReducedHistory
DYDycom Industries IncCOM18,816$9.51M0.3%−13,690−42.1%ReducedHistory
RALRalliant CorpStock128,740$9.48M0.3%+128,740NewHistory
WCCWesco International IncCOM27,347$9.45M0.3%−1,050−3.7%ReducedHistory
WSCWillScot Holdings CorpCOM CL A325,950$9.41M0.3%+325,950NewHistory
KNXKnight-Swift Transportation Holdings Inc.CL A120,560$9.39M0.3%−5,470−4.3%ReducedHistory
LTHLife Time Group Holdings, Inc.COMMON STOCK229,298$9.36M0.3%+229,298NewHistory
CGNXCognex CorpCOM128,730$9.32M0.3%+18,490+16.8%AddedHistory
AXPAmerican Express CoStock27,295$9.23M0.2%+24,620+920.4%AddedHistory
ASBAssociated Banc-CorpCOM299,403$9.21M0.2%−12,020−3.9%ReducedHistory
BKDBrookdale Senior Living Inc.COM570,084$9.17M0.2%−28,370−4.7%ReducedHistory

Sold out since Q1 2026 (41)

Positions held at the end of Q1 2026 that are gone from this filing.

Positions of Castleark Management LLC sold out since Q1 2026
SecurityClassShares in Q1 2026Value in Q1 2026% of portfolio in Q1 2026History
ULTAUlta Beauty, Inc.Stock50,629$26.5M0.9%History
FIVEFive Below, IncCOM40,110$9.16M0.3%History
TPCTutor Perini CorpCOM116,440$8.99M0.3%History
HASHasbro, Inc.COM94,701$8.86M0.3%History
SPXCSPX Technologies, Inc.COM41,567$8.31M0.3%History
PAHCPhibro Animal Health CorpCL A COM142,900$7.90M0.3%History
KTOSKratos Defense & Security Solutions, Inc.COM NEW109,634$7.73M0.3%History
ADSKAutodesk, Inc.COM31,940$7.65M0.3%History
IPGPIpg Photonics CorpCOM60,456$6.93M0.2%History
PATKPatrick Industries IncCOM62,180$6.91M0.2%History
ATMUAtmus Filtration Technologies Inc.COM119,350$6.78M0.2%History
SSDSimpson Manufacturing Co., Inc.COM38,382$6.59M0.2%History
CHDNChurchill Downs IncCOM67,810$6.09M0.2%History
IDCCInterDigital, Inc.COM19,876$6.00M0.2%History
ONTOOnto Innovation Inc.COM29,030$5.95M0.2%History
FSLYFastly, Inc.CL A177,688$5.16M0.2%History
MEDPMedpace Holdings, Inc.COM10,030$4.82M0.2%History
RYTMRhythm Pharmaceuticals, Inc.COM52,279$4.55M0.2%History
FFord Motor CoStock380,230$4.39M0.1%History
MANHManhattan Associates IncStock30,580$4.07M0.1%History
IQVIQVIA Holdings Inc.Stock22,580$3.85M0.1%History
BELFBBel Fuse IncCL B16,311$3.23M0.1%History
IRTCiRhythm Holdings, Inc.COM27,193$3.21M0.1%History
COINCoinbase Global, Inc.COM CL A17,630$3.08M0.1%History
EYENational Vision Holdings, Inc.COM117,736$3.05M0.1%History
FIGSFIGS, Inc.CL A199,010$2.94M0.1%History
URIUnited Rentals, Inc.COM3,420$2.49M0.1%History
CELHCelsius Holdings, Inc.COM NEW67,902$2.41M0.1%History
CDECoeur Mining, Inc.COM NEW122,890$2.31M0.1%History
AAOIApplied Optoelectronics, Inc.COM25,700$2.17M0.1%History
MRCYMercury Systems IncCOM25,048$1.83M0.1%History
REALTheRealReal, Inc.COM156,760$1.42M<0.1%History
CHRWC. H. Robinson Worldwide, Inc.COM NEW6,600$1.10M<0.1%History
WMSAdvanced Drainage Systems, Inc.COM7,190$986.0K<0.1%History
GWREGuidewire Software, Inc.COM5,180$774.7K<0.1%History
CRKComstock Resources IncCOM33,370$703.4K<0.1%History
LITELumentum Holdings Inc.COM770$541.1K<0.1%History
GELGenesis Energy LPUNIT LTD PARTN29,980$534.5K<0.1%History
RKTRocket Companies, Inc.Stock34,960$498.2K<0.1%History
PRIMPrimoris Services CorpStock1,390$198.8K<0.1%History
SEESealed Air CorpCOM720$30.3K<0.1%History