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  Name: CASTLEARK MANAGEMENT LLC
  City: CHICAGO
  State: IL
  Zip: 60606
   
Achive data
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Portfolio Summary View Filing
  Filing Report Date : 2025-03-31
  Total Value : $2,885,406,000
  Total Value Change : $18,284,000
  Securities Held Change : -3
   
All Securities Held : 280
  New Positions : 66
  Closed Positions : 75
  Increased Positions : 90
  Unchanged Positions : 72
  Decreased Positions : 52

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Holdings Found : 100     View All Holdings Currently Viewing:  ALL     Page 1 of 1
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Ticker Company Name Position
Rank
New/Closed
Postion
Last
Close
    Value Shares Held
% of
Portfolio
Value
Change
Change In
Shares Held
   % of Company    Industry
   (AAPL)1 Year Chart         AAPL Apple Inc 1 - $201.08 $134,089,000 603,651 4.65% -35,553,000 -73,778 0.004    Personal Computers
   (NVDA)1 Year Chart         NVDA NVIDIA Corporation 2 - $157.75 $121,793,000 1,123,760 4.22% -22,440,000 49,722 0.005    Semiconductor - Speci...
   (AMZN)1 Year Chart         AMZN Amazon.com Inc 3 - $223.30 $108,549,000 570,531 3.76% -14,352,000 10,336 0.006    Internet Software & S...
   (MSFT)1 Year Chart         MSFT Microsoft Corp 4 - $495.94 $103,458,000 275,602 3.59% -39,820,000 -64,322 0.004    Application Software
   (GOVT)1 Year Chart         GOVT Ishares Barclays Us Treasur... 5 - $0.00 $93,775,000 4,079,819 3.25% 56,516,000 2,458,450 0.045    N/A
   (META)1 Year Chart         META Meta Platforms Inc 6 - $733.63 $82,446,000 143,046 2.86% 8,187,000 16,218 0.006    Internet Service Prov...
   (MA)1 Year Chart         MA MasterCard Inc A 7 - $550.32 $75,096,000 137,007 2.6% 3,867,000 1,738 0.014    Business Services
   (VMBS)1 Year Chart         VMBS Vanguard Mortgage-Backed S 8 - $46.19 $74,516,000 1,609,080 2.58% 1,560,000 0 0.179    Closed - End Fund - Debt
   (V)1 Year Chart         V Visa Inc 9 - $348.61 $73,314,000 209,193 2.54% 8,015,000 2,578 0.012    Business Services
   (NFLX)1 Year Chart         NFLX Netflix Inc 10 - $1,323.12 $70,938,000 76,070 2.46% 5,089,000 2,192 0.017    Music & Video Stores
   (ITR)1 Year Chart         ITR SPDR Series Trust 11 - $33.51 $67,995,000 2,045,580 2.36% -55,106,000 -1,712,080 0.227    Closed - End Fund - Debt
   (LLY)1 Year Chart         LLY Eli Lilly & Co 12 - $775.45 $65,818,000 79,692 2.28% 32,803,000 36,926 0.008    Drug Manufacturers - ...
   (ISRG)1 Year Chart         ISRG Intuitive Surgical Inc 13 - $372.63 $57,167,000 115,425 1.98% 9,946,000 24,956 0.032    Medical Appliances & ...
   (GOOGL)1 Year Chart         GOOGL Alphabet Inc 14 - $178.53 $56,612,000 366,089 1.96% -11,858,000 4,390 0.006    Search Engines & Info...
   (ANET)1 Year Chart         ANET Arista Networks, Inc. 15 - $99.39 $55,304,000 713,790 1.92% -11,828,000 106,430 0.232    Diversified Computer ...
   (BX)1 Year Chart         BX Blackstone Group LP 16 - $120.62 $54,048,000 386,666 1.87% -17,855,000 -30,354 0.054    Asset Management
   (NOW)1 Year Chart         NOW Servicenow, Inc. 17 - $1,022.42 $48,321,000 60,694 1.67% -15,229,000 748 0.031    Information Technolog...
   (QQQ)1 Year Chart         QQQ Invesco QQQ Trust Series I 18 New $548.09 $31,244,000 66,630 1.08% 31,244,000 66,630 0.014    Closed - End Fund - Debt
   (TLT)1 Year Chart         TLT iShares Tr Lehman 20+yr Tres 19 - $87.39 $31,101,000 341,660 1.08% 14,477,000 151,300 0.03    Closed - End Fund - E...
   (SHOP)1 Year Chart         SHOP Shopify Inc 20 - $113.65 $26,535,000 277,916 0.92% -2,309,000 6,646 0.023    N/A
   (TT)1 Year Chart         TT Trane Technologies (Ingerso... 21 - $432.29 $24,928,000 73,988 0.86% -2,068,000 898 0.031    Diversified Machinery
   (FICO)1 Year Chart         FICO Fair Isaac Corp 22 - $1,816.26 $24,472,000 13,270 0.85% -1,629,000 160 0.046    Business Services
   (SBUX)1 Year Chart         SBUX Starbucks Corp 23 - $92.11 $23,011,000 234,592 0.8% 1,863,000 2,832 0.02    Specialty Eateries
   (VRTX)1 Year Chart         VRTX Vertex Pharmaceuticals Inc 24 - $441.30 $22,805,000 47,039 0.79% 4,085,000 554 0.018    Drug Manufacturers - ...
   (TLH)1 Year Chart         TLH iShares Barclays 10-20 Year... 25 - $100.81 $22,368,000 215,592 0.78% 908,000 0 0.229    Closed - End Fund - E...
   (GLD)1 Year Chart         GLD streetTRACKS Gold Trust 26 - $301.22 $20,716,000 71,895 0.72% 9,877,000 27,130 0.017    Closed - End Fund - E...
   (ACN)1 Year Chart         ACN Accenture Plc 27 New $295.46 $18,533,000 59,394 0.64% 18,533,000 59,394 0.009    Management Services
   (MBB)1 Year Chart         MBB iShares Barclays MBS Bond 28 - $93.53 $18,466,000 196,905 0.64% 414,000 0 0.022    Closed - End Fund - E...
   (SPTS)1 Year Chart         SPTS Spdr Barclays Short Term Tr... 29 - $29.48 $17,772,000 607,790 0.62% 140,000 0 0.2    N/A
   (LRCX)1 Year Chart         LRCX Lam Research Corp 30 - $97.20 $16,498,000 226,938 0.57% 7,738,000 105,658 0.018    Semiconductor Equipme...
   (DOCU)1 Year Chart         DOCU Docusign Inc 31 - $76.47 $16,186,000 198,840 0.56% -1,483,000 2,390 0.107    N/A
   (PM)1 Year Chart         PM Philip Morris International... 32 - $181.03 $14,384,000 90,620 0.5% 3,894,000 3,460 0.006    Cigarettes & Other To...
   (XLC)1 Year Chart         XLC Communication Services Sele... 33 New $107.68 $13,008,000 134,870 0.45% 13,008,000 134,870 0.008    N/A
   (VRNA)1 Year Chart         VRNA Verona Pharma Plc 34 - $0.00 $11,820,000 186,170 0.41% 3,189,000 310 0.231    N/A
   (VST)1 Year Chart         VST Vistra Energy Corp 35 - $195.04 $11,389,000 96,975 0.39% 3,026,000 36,315 0.02    N/A
   (TJX)1 Year Chart         TJX TJX Companies Inc 36 - $123.38 $10,677,000 87,660 0.37% 87,000 0 0.007    Discount, Variety Stores
   (TSM)1 Year Chart         TSM Taiwan Semiconductor Mfg. C... 37 - $228.57 $10,629,000 64,030 0.37% 600,000 13,250 0.001    Semiconductor - Integ...
   (XLV)1 Year Chart         XLV SPDR Select Sector Health 38 - $133.93 $10,384,000 71,120 0.36% 600,000 0 0.003    Closed - End Fund - E...
   (MWA)1 Year Chart         MWA Mueller Water Products, Inc. 39 - $24.11 $9,608,000 377,960 0.33% 1,296,000 8,560 0.239    Industrial Equipment ...
   (TGTX)1 Year Chart         TGTX TG Therapeutics Inc 40 - $36.72 $9,348,000 237,090 0.32% 2,986,000 25,720 0.184    Drug Manufacturers - ...
   (WMT)1 Year Chart         WMT Wal-Mart Stores Inc 41 New $60.24 $9,134,000 104,040 0.32% 9,134,000 104,040 0.004    Discount, Variety Stores
   (ADMA)1 Year Chart         ADMA ADMA Biologics Inc 42 - $18.16 $9,052,000 456,266 0.31% 2,426,000 69,900 0.193    Biotechnology
   (RACE)1 Year Chart         RACE Ferrari NV 43 - $0.00 $8,825,000 20,626 0.31% 745,000 1,608 0.011    N/A
   (JLL)1 Year Chart         JLL Jones Lang Lasalle Inc 44 - $256.96 $8,786,000 35,440 0.3% 30,000 850 0.069    Property Management
   (AVGO)1 Year Chart         AVGO Broadcom Limited 45 - $269.35 $8,708,000 52,010 0.3% -51,761,000 -208,810 0.001    Semiconductor- Broad...
   (CYBR)1 Year Chart         CYBR Cyber-Ark Software Ltd 46 - $397.89 $8,592,000 25,420 0.3% -1,922,000 -6,140 0.059    N/A
   (MCD)1 Year Chart         MCD McDonalds Corp 47 New $291.55 $8,581,000 27,470 0.3% 8,581,000 27,470 0.004    Restaurants
   (EQT)1 Year Chart         EQT EQT Corp 48 - $40.09 $8,547,000 159,965 0.3% -6,810,000 -173,085 0.027    Gas Utilities
   (JPM)1 Year Chart         JPM JP Morgan Chase & Co 49 - $287.11 $8,268,000 33,705 0.29% 4,508,000 18,020 0.001    Domestic Money Center...
   (COF)1 Year Chart         COF Capital One Financial Corp 50 - $211.01 $8,199,000 45,730 0.28% 1,733,000 9,470 0.01    Credit Services
   (HWM)1 Year Chart         HWM Howmet Aerospace Inc 52 New $184.90 $8,156,000 62,870 0.28% 8,156,000 62,870 0    Aluminum
   (GE)1 Year Chart         GE General Electric Co 51 New $254.51 $8,156,000 40,750 0.28% 8,156,000 40,750 0.018    Conglomerates
   (FTI)1 Year Chart         FTI Technipfmc Limited 53 - $34.54 $8,132,000 256,625 0.28% -3,032,000 -129,155 0.057    Oil & Gas Equipment &...
   (KNF)1 Year Chart         KNF Knife River Holding Co 54 - $82.77 $8,123,000 90,050 0.28% -231,000 7,860 0.159    N/A
   (XPO)1 Year Chart         XPO XPO Logistics Inc 55 - $127.48 $8,005,000 74,414 0.28% -1,534,000 1,680 0.064    AirDelivery & Freight...
   (EVR)1 Year Chart         EVR Evercore Partners Inc. 56 - $268.91 $7,993,000 40,020 0.28% -2,851,000 900 0.098    Asset Management
   (PLNT)1 Year Chart         PLNT Planet Fitness, Inc. 57 New $108.70 $7,931,000 82,090 0.27% 7,931,000 82,090 0.084    N/A
   (PGR)1 Year Chart         PGR Progressive Corp 58 - $263.99 $7,887,000 27,870 0.27% 1,209,000 0 0.005    Property & Casualty I...
   (AIT)1 Year Chart         AIT Applied Industrial Technolo... 59 New $231.69 $7,826,000 34,730 0.27% 7,826,000 34,730 0.09    Industrial Equipment ...
   (LQD)1 Year Chart         LQD iShares Trust Goldman Sachs 60 - $109.01 $7,735,000 71,170 0.27% 131,000 0 0.017    Closed - End Fund - E...
   (CRM)1 Year Chart         CRM Salesforce.com Inc 61 - $273.42 $7,705,000 28,710 0.27% -5,294,000 -10,170 0.003    Internet Software & S...
   (EWJ)1 Year Chart         EWJ iShares MSCI-Japan 62 - $75.28 $7,684,000 112,080 0.27% 163,000 0 0.006    Closed - End Fund - E...
   (PEGA)1 Year Chart         PEGA Pegasystems Inc 63 - $53.32 $7,553,000 108,650 0.26% -1,360,000 13,020 0.135    Business Software & S...
   (GTES)1 Year Chart         GTES Gates Industrial Corp Plc 64 - $23.13 $7,552,000 410,190 0.26% -694,000 9,330 0.141    N/A
   (IAK)1 Year Chart         IAK iShares Dow Jones U.S. Insu... 65 - $113.45 $7,451,000 54,070 0.26% 613,000 0 0.515    Closed - End Fund - E...
   (PAR)1 Year Chart         PAR Par Technology Corp 66 - $67.99 $7,414,000 120,860 0.26% -695,000 9,280 0.284    Business Equipment
   (EXLS)1 Year Chart         EXLS Exlservice Holdings, Inc. 67 - $43.82 $7,345,000 155,580 0.25% 597,000 3,530 0.094    Business Services
   (BROS)1 Year Chart         BROS Dutch Bros Inc. 68 - $69.34 $7,266,000 117,690 0.25% 1,999,000 17,130 0.098    N/A
   (ALKT)1 Year Chart         ALKT Alkami Technology, Inc. 69 - $29.72 $7,146,000 272,240 0.25% -403,000 66,440 0.325    N/A
   (SF)1 Year Chart         SF Stifel Financial Corp 70 - $103.68 $7,104,000 75,370 0.25% -710,000 1,710 0.073    Investment Brokerage ...
   (LAD)1 Year Chart         LAD Lithia Motors Inc 71 - $335.64 $7,010,000 23,880 0.24% 1,541,000 8,580 0.079    Auto Dealerships
   (LGND)1 Year Chart         LGND Ligand Pharmaceuticals Inc 72 - $114.15 $6,988,000 66,463 0.24% 11,000 1,350 0.367    Drug Manufacturers - ...
   (IDCC)1 Year Chart         IDCC Interdigital Inc 73 New $230.93 $6,910,000 33,420 0.24% 6,910,000 33,420 0.108    Wireless Communications
   (HQY)1 Year Chart         HQY Healthequity Inc 74 - $0.00 $6,889,000 77,960 0.24% -2,987,000 -24,970 0.087    N/A
   (PCTY)1 Year Chart         PCTY Paylocity Holding Corp 75 - $179.56 $6,866,000 36,650 0.24% 834,000 6,410 0.068    N/A
   (CWST)1 Year Chart         CWST Casella Waste Systems Inc 76 - $115.31 $6,776,000 60,770 0.23% 491,000 1,370 0.087    Waste Management
   (TTD)1 Year Chart         TTD Trade Desk, Inc. 77 - $69.33 $6,747,000 123,304 0.23% -38,484,000 -261,546 0.028    N/A
   (KD)1 Year Chart         KD Kyndryl Holdings, Inc. 78 - $41.46 $6,731,000 214,360 0.23% -277,000 11,810 0.096    N/A
   (XLRE)1 Year Chart         XLRE Real Estate Select Sector S... 79 - $41.12 $6,711,000 160,370 0.23% 189,000 0 0.026    N/A
   (SKY)1 Year Chart         SKY Skyline Corporation 80 - $62.58 $6,610,000 69,750 0.23% 1,410,000 10,730 0.115    Residential Construct...
   (FOUR)1 Year Chart         FOUR Shift4 Payments, Inc. 81 - $98.22 $6,601,000 80,780 0.23% -1,591,000 1,840 0.108    N/A
   (BSX)1 Year Chart         BSX Boston Scientific Corp 82 New $106.53 $6,544,000 64,870 0.23% 6,544,000 64,870 0.005    Medical Instruments &...
   (XLF)1 Year Chart         XLF SPDR Financial Sector 83 - $51.94 $6,532,000 131,130 0.23% 194,000 0 0.002    Closed - End Fund - E...
   (LPLA)1 Year Chart         LPLA LPL Investment Holdings Inc 84 New $364.96 $6,507,000 19,890 0.23% 6,507,000 19,890 0.025    Investment Brokerage ...
   (APG)1 Year Chart         APG Api Group Corp 85 - $50.87 $6,483,000 181,283 0.22% 2,877,000 81,030 0.078    N/A
   (CR)1 Year Chart         CR Crane Co 86 - $188.39 $6,470,000 42,240 0.22% 571,000 3,370 0.074    N/A
   (IMAX)1 Year Chart         IMAX Imax Corp 87 - $27.81 $6,440,000 244,421 0.22% 246,000 2,450 0.412    Movie Production & Di...
   (GENI)1 Year Chart         GENI Genius Sports 88 - $10.38 $6,418,000 641,200 0.22% 2,456,000 183,210 0.335    N/A
   (VMI)1 Year Chart         VMI Valmont Industries Inc 89 - $333.86 $6,338,000 22,210 0.22% -320,000 500 0.105    Farm & Construction M...
   (EFA)1 Year Chart         EFA iShares TR MSCI EAFE Indx FD 90 - $89.34 $6,280,000 76,840 0.22% 470,000 0 0.011    Closed - End Fund - E...
   (UTI)1 Year Chart         UTI Universal Technical Institu... 91 New $34.52 $6,148,000 239,390 0.21% 6,148,000 239,390 0.446    Education & Training ...
   (NTRA)1 Year Chart         NTRA Natera, Inc. 92 - $167.96 $6,130,000 43,350 0.21% -523,000 1,320 0.035    N/A
   (RMBS)1 Year Chart         RMBS Rambus Inc 93 - $64.00 $6,115,000 118,100 0.21% -1,280,000 -21,790 0.104    Semiconductor - Memor...
   (GMED)1 Year Chart         GMED Genomed Inc 94 - $58.60 $6,092,000 83,220 0.21% -635,000 1,890 0.072    N/A
   (WH)1 Year Chart         WH Wyndham Hotels & Resorts, Inc. 95 - $81.87 $6,024,000 66,560 0.21% -532,000 1,510 0.071    N/A
   (LTH)1 Year Chart         LTH Life Time Group Holdings, Inc. 96 New $30.05 $6,018,000 199,260 0.21% 6,018,000 199,260 0.103    N/A
   (LITE)1 Year Chart         LITE Lumentum Holdings Inc. 97 - $94.75 $5,991,000 96,110 0.21% -1,895,000 2,170 0.127    N/A
   (G)1 Year Chart         G Genpact Ltd 98 New $43.54 $5,843,000 115,980 0.2% 5,843,000 115,980 0.061    Management Services
   (VCYT)1 Year Chart         VCYT Veracyte, Inc. 99 - $27.38 $5,782,000 195,010 0.2% -927,000 25,580 0.235    Biotechnology
   (ETE)1 Year Chart         ETE Energy Transfer Equity LP 100 - $18.20 $5,703,000 306,800 0.2% -1,355,000 -53,510 0.012    Oil & Gas Pipelines &...

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