SEC Form 13F

CASTLEARK MANAGEMENT LLC 13F Holdings

Inspect CASTLEARK MANAGEMENT LLC's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-08-15T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-08-15
Reported value
$3,709,338,225
Positions
309

Disclosed positions

NVIDIA CORPORATIONNVDACOM$260,037,9641,299,605SHNone
ALPHABET INCGOOGLCAP STK CL A$181,219,825507,093SHNone
APPLE INCAAPLCOM$136,609,171472,108SHNone
LAM RESEARCH CORPLRCXCOM NEW$122,982,521283,808SHNone
MICROSOFT CORPMSFTCOM$109,209,065292,770SHNone
ELI LILLY & COLLYCOM$105,186,41387,697SHNone
BROADCOM INCAVGOCOM$92,131,714243,896SHNone
SPDR SERIES TRUSTSPIBST INTER BD ETF$89,953,1952,688,380SHNone
VISA INCVCOM CL A$81,026,193236,166SHNone
ARISTA NETWORKS INCANETCOM SHS$80,407,432473,319SHNone
ISHARES TRGOVTUS TREAS BD ETF$75,847,5823,329,569SHNone
VANGUARD SCOTTSDALE FDSVMBSMTG-BKD SECS ETF$69,643,9181,487,800SHNone
ADVANCED MICRO DEVICES INCAMDCOM$69,049,867118,865SHNone
GILEAD SCIENCES INCGILDCOM$66,649,656527,542SHNone
AMAZON COM INCAMZNCOM$63,934,467268,249SHNone
GE VERNOVA INCGEVCOM$54,162,22146,101SHNone
META PLATFORMS INCMETACL A$52,805,05893,744SHNone
ANALOG DEVICES INCADICOM$48,031,357120,934SHNone
MASTERCARD INCORPORATEDMACL A$46,974,88391,462SHNone
MORGAN STANLEYMSCOM NEW$43,593,620208,542SHNone
SNOWFLAKE INCSNOWCOM SHS$42,455,181166,818SHNone
VERTIV HOLDINGS COVRTCOM CL A$41,484,533123,901SHNone
TAPESTRY INCTPRCOM$38,900,339265,749SHNone
SPDR SERIES TRUSTSPTSST SHO TREAS ETF$38,701,6611,334,080SHNone
VANGUARD SCOTTSDALE FDSVCLTLG-TERM COR BD$33,736,833448,330SHNone
SERVICENOW INCNOWCOM$31,930,731321,623SHNone
ISHARES TRTLH10-20 YR TRS ETF$25,933,651258,432SHNone
BOOKING HOLDINGS INCBKNGCOM$24,378,954136,776SHNone
MOODYS CORPMCOCOM$24,205,85653,444SHNone
TESLA INCTSLACOM$20,218,24248,070SHNone
CATERPILLAR INCCATCOM$20,211,80218,980SHNone
GE AEROSPACEGECOM NEW$19,744,15652,830SHNone
TAIWAN SEMICONDUCTOR MANUFACTSMSPONSORED ADS$19,680,66041,210SHNone
LIGAND PHARMACEUTICALS INCLGNDCOM NEW$19,611,17262,043SHNone
SHARKNINJA INCSNCOM SHS$19,364,176127,170SHNone
ISHARES TRMBBMBS ETF$19,304,292204,235SHNone
TWILIO INCTWLOCL A$19,062,82992,390SHNone
BAKER HUGHES COMPANYBKRCL A$18,316,110330,020SHNone
GARRETT MOTION INCGTXCOM$17,008,898469,470SHNone
JPMORGAN CHASE & COJPMCOM$16,538,34850,525SHNone
ASCENDIS PHARMA A/SASNDORD SHS$16,455,55761,696SHNone
HUNT J B TRANS SVCS INCJBHTCOM$16,358,58456,520SHNone
DIAMONDBACK ENERGY INCFANGCOM$15,939,73090,680SHNone
GENERAL MTRS COGMCOM$15,372,835199,440SHNone
BRIGHTSPRING HEALTH SVCS INCBTSGCOM$14,814,868212,430SHNone
SEMTECH CORPSMTCCOM$14,763,63391,218SHNone
FIRSTCASH HOLDINGS INCFCFSCOM$14,750,86168,190SHNone
MARRIOTT INTL INC NEWMARCL A$14,049,06737,910SHNone
ISHARES TRIGIBISHS 5-10YR INVT$13,823,881259,994SHNone
TJX COS INC NEWTJXCOM$13,728,93090,620SHNone

Largest 50 positions by reported value; the filing may contain more positions.

How amendments affect these holdings

This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 0 positions lack a resolved ticker and 0 positions are put or call entries.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.