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  Name: WESTFIELD CAPITAL MANAGEMENT CO LLC
  City: BOSTON
  State: MA
  Zip: 02111
   
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Portfolio Summary View Filing
  Filing Report Date : 2025-03-31
  Total Value : $20,549,797,000
  Total Value Change : $-2,421,897,000
  Securities Held Change : 5
   
All Securities Held : 244
  New Positions : 41
  Closed Positions : 41
  Increased Positions : 81
  Unchanged Positions : 11
  Decreased Positions : 111

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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
   (ASND)1 Year Chart         ASND Ascendis Pharma AS 1 - $172.22 $853,997,000 5,479,259 4.16% 92,924,000 -48,980 8.478    N/A
   (NVDA)1 Year Chart         NVDA NVIDIA Corporation 2 - $157.75 $795,147,000 7,336,654 3.87% -198,577,000 -63,183 0.03    Semiconductor - Speci...
   (AAPL)1 Year Chart         AAPL Apple Inc 3 - $201.08 $755,505,000 3,401,183 3.68% -159,788,000 -253,848 0.02    Personal Computers
   (MSFT)1 Year Chart         MSFT Microsoft Corp 4 - $495.94 $687,944,000 1,832,611 3.35% -101,446,000 -40,200 0.024    Application Software
   (AMZN)1 Year Chart         AMZN Amazon.com Inc 5 - $223.30 $658,809,000 3,462,676 3.21% -96,386,000 20,428 0.034    Internet Software & S...
   (GOOGL)1 Year Chart         GOOGL Alphabet Inc 6 - $178.53 $535,041,000 3,459,916 2.6% -122,854,000 -15,496 0.058    Search Engines & Info...
   (META)1 Year Chart         META Meta Platforms Inc 7 - $733.63 $517,881,000 898,538 2.52% -9,639,000 -2,421 0.037    Internet Service Prov...
   (AAXN)1 Year Chart         AAXN Axon Enterprise Inc 8 - $818.60 $487,977,000 927,801 2.37% 63,115,000 212,931 1.46    Aerospace/Defense Pro...
   (TDG)1 Year Chart         TDG Transdigm Group Inc 9 - $1,499.17 $437,343,000 316,162 2.13% -21,688,000 -46,056 0.576    Aerospace/Defense Pro...
   (V)1 Year Chart         V Visa Inc 10 - $348.61 $316,955,000 904,397 1.54% 32,629,000 4,745 0.054    Business Services
   (FIX)1 Year Chart         FIX Comfort Systems USA Inc 11 - $535.00 $286,757,000 889,639 1.4% -88,590,000 4,512 2.445    General Contractors
   (LPLA)1 Year Chart         LPLA LPL Investment Holdings Inc 12 - $364.96 $271,559,000 830,099 1.32% 41,070,000 124,180 1.041    Investment Brokerage ...
   (NOW)1 Year Chart         NOW Servicenow, Inc. 13 - $1,022.42 $254,991,000 320,284 1.24% -78,992,000 5,241 0.164    Information Technolog...
   (TPR)1 Year Chart         TPR Tapestry Inc 14 - $87.11 $253,569,000 3,601,314 1.23% 18,060,000 -3,604 1.298    Textile - Apparel Foo...
   (LEGN)1 Year Chart         LEGN Churchill Cap Corp Iii 15 - $34.63 $234,713,000 6,917,567 1.14% 48,789,000 1,203,871 5.353    N/A
   (AVGO)1 Year Chart         AVGO Broadcom Limited 16 - $269.35 $234,118,000 1,398,303 1.14% -80,020,000 43,326 0.03    Semiconductor- Broad...
   (LLY)1 Year Chart         LLY Eli Lilly & Co 17 - $775.45 $213,871,000 258,952 1.04% 44,037,000 38,959 0.027    Drug Manufacturers - ...
   (FTAI)1 Year Chart         FTAI Fortress Transportation & I... 18 - $118.60 $210,119,000 1,892,451 1.02% -148,354,000 -596,253 1.899    N/A
   (CRM)1 Year Chart         CRM Salesforce.com Inc 19 - $273.42 $210,107,000 782,929 1.02% 10,478,000 185,826 0.086    Internet Software & S...
   (PGR)1 Year Chart         PGR Progressive Corp 20 - $263.99 $201,574,000 712,249 0.98% 22,306,000 -35,917 0.122    Property & Casualty I...
   (NFLX)1 Year Chart         NFLX Netflix Inc 21 - $1,323.12 $199,471,000 213,903 0.97% 20,898,000 13,557 0.048    Music & Video Stores
   (CHKP)1 Year Chart         CHKP Check Point Software Techno... 22 - $216.45 $197,086,000 864,717 0.96% 145,762,000 589,816 0.617    Security Software & S...
   (VRT)1 Year Chart         VRT Vertiv Holdings Co 23 - $127.16 $171,661,000 2,377,572 0.84% -250,969,000 -1,342,438 0.631    N/A
   (CWST)1 Year Chart         CWST Casella Waste Systems Inc 24 - $115.31 $168,140,000 1,507,843 0.82% 7,277,000 -12,460 2.154    Waste Management
   (DXCM)1 Year Chart         DXCM DexCom Inc 25 - $86.33 $167,156,000 2,447,743 0.81% -15,261,000 102,142 0.628    Medical Instruments &...
   (ARES)1 Year Chart         ARES Ares Management Lp 26 - $0.00 $165,437,000 1,128,415 0.81% -3,409,000 174,645 0.565    N/A
   (MNDY)1 Year Chart         MNDY Mondaycom Ord Shs 27 - $307.96 $161,741,000 665,164 0.79% -2,572,000 -32,736 1.507    N/A
   (PLTR)1 Year Chart         PLTR Palantir Technologies Inc 28 - $130.74 $160,228,000 1,898,437 0.78% 15,852,000 -10,539 0.129    N/A
   (GEV)1 Year Chart         GEV Ge Vernova Llc 29 - $519.66 $156,537,000 512,767 0.76% -44,702,000 -99,033 0.188    N/A
   (TEAM)1 Year Chart         TEAM Atlassian Corporation Plc 30 - $202.32 $156,269,000 736,388 0.76% 1,047,000 98,610 0.491    N/A
   (LNTH)1 Year Chart         LNTH Lantheus Holdings, Inc. 31 - $81.49 $155,101,000 1,589,145 0.75% 15,982,000 34,052 2.199    N/A
   (EAT)1 Year Chart         EAT Brinker International Inc 32 - $180.05 $148,411,000 995,713 0.72% 83,216,000 502,897 1.907    Restaurants
   (HWM)1 Year Chart         HWM Howmet Aerospace Inc 33 New $184.90 $147,251,000 1,135,059 0.72% 147,251,000 1,135,059 0.262    Aluminum
   (OPCH)1 Year Chart         OPCH Option Care Health 34 - $32.25 $144,852,000 4,144,537 0.7% -23,701,000 -3,120,691 2.219    Specialized Health Se...
   (PODD)1 Year Chart         PODD Insulet Corp 35 - $173.42 $141,349,000 538,247 0.69% -19,939,000 -79,549 0.707    Medical Instruments &...
   (DKNG)1 Year Chart         DKNG Draftkings Inc Class A 36 - $0.00 $140,313,000 4,225,024 0.68% -16,783,000 2,017 0.966    N/A
   (COST)1 Year Chart         COST Costco Wholesale Corp 37 - $985.14 $140,123,000 148,156 0.68% 4,044,000 -358 0.034    Discount, Variety Stores
   (BAC)1 Year Chart         BAC Bank of America Corp 38 - $47.12 $139,566,000 3,344,496 0.68% 43,139,000 1,150,471 0.039    Domestic Money Center...
   (DT)1 Year Chart         DT Dynatrace, Inc. 39 - $0.00 $137,233,000 2,910,553 0.67% -17,588,000 61,952 0.944    N/A
   (IOT)1 Year Chart         IOT Samsara Inc. 40 - $39.60 $135,052,000 3,523,390 0.66% -22,388,000 -80,186 0.757    N/A
   (SAIA)1 Year Chart         SAIA Saia Inc 41 - $277.26 $130,513,000 373,503 0.64% -24,337,000 33,719 1.124    Trucking
   (MDB)1 Year Chart         MDB Mongodb Inc 42 - $209.92 $128,706,000 733,787 0.63% 128,706,000 733,787 1.068    N/A
   (DKS)1 Year Chart         DKS Dicks Sporting Goods Inc 43 - $202.82 $127,097,000 630,566 0.62% 119,879,000 599,025 0.711    Sporting Goods Stores
   (PCOR)1 Year Chart         PCOR Procore Technologies, Inc. 44 - $67.86 $124,067,000 1,879,226 0.6% -7,297,000 126,070 1.27    N/A
   (UNH)1 Year Chart         UNH Unitedhealth Group Inc 45 - $309.11 $123,696,000 236,174 0.6% -42,764,000 -92,890 0.025    Health Care Plans
   (TSLA)1 Year Chart         TSLA Tesla Motors Inc 46 - $177.81 $123,029,000 474,720 0.6% -143,549,000 -185,387 0.015    Auto Manufacturers
   (TXRH)1 Year Chart         TXRH Texas Roadhouse Inc 47 - $187.74 $116,982,000 702,048 0.57% -8,082,000 8,904 1.01    Restaurants
   (RBC)1 Year Chart         RBC Regal Beloit Corp 48 - $146.51 $113,984,000 1,001,177 0.55% -62,675,000 -137,604 1.112    Machine Tools & Acces...
   (IP)1 Year Chart         IP International Paper Co 49 New $47.37 $112,985,000 2,117,805 0.55% 112,985,000 2,117,805 0.539    Paper & Paper Products
   (AJG)1 Year Chart         AJG Arthur J Gallagher & Co 50 - $317.73 $112,077,000 324,635 0.55% 13,799,000 -21,597 0.137    Insurance Brokers
   (MASI)1 Year Chart         MASI Masimo Corp 51 - $168.21 $111,868,000 671,479 0.54% -15,224,000 -97,379 1.22    Medical Appliances & ...
   (OWL)1 Year Chart         OWL Blue Owl Capital Inc 52 - $19.45 $111,298,000 5,553,781 0.54% -15,527,000 101,307 0.99    N/A
   (TSM)1 Year Chart         TSM Taiwan Semiconductor Mfg. C... 53 - $228.57 $108,791,000 655,367 0.53% -49,929,000 -148,319 0.013    Semiconductor - Integ...
   (INSM)1 Year Chart         INSM Insmed Inc 54 - $99.49 $107,310,000 1,406,609 0.52% 42,512,000 468,058 0.74    Biotechnology
   (GKOS)1 Year Chart         GKOS Glaukos Corp 55 - $101.42 $106,705,000 1,084,184 0.52% -14,319,000 277,033 1.974    N/A
   (SN)1 Year Chart         SN SharkNinja, Inc 56 - $96.50 $102,576,000 1,229,784 0.5% -18,024,000 -8,921 0.885    N/A
   (UNP)1 Year Chart         UNP Union Pacific Corp 57 - $231.41 $100,795,000 426,665 0.49% 3,415,000 -364 0.063    Railroads
   (MSCI)1 Year Chart         MSCI Msci Inc 58 - $576.41 $99,322,000 175,636 0.48% 9,956,000 26,696 0.212    Business Services
   (NTRA)1 Year Chart         NTRA Natera, Inc. 59 - $167.96 $97,763,000 691,341 0.48% 12,947,000 155,547 0.559    N/A
   (ORCL)1 Year Chart         ORCL Oracle Corp 60 - $210.24 $97,689,000 698,726 0.48% -40,880,000 -132,819 0.023    Application Software
   (FOUR)1 Year Chart         FOUR Shift4 Payments, Inc. 61 - $98.22 $96,920,000 1,186,149 0.47% -64,100,000 -365,400 1.582    N/A
   (GLOB)1 Year Chart         GLOB GLOBANT SA 62 - $91.13 $96,583,000 820,445 0.47% 39,653,000 554,938 1.908    N/A
   (HUBS)1 Year Chart         HUBS Hubspot Inc 63 - $0.00 $95,209,000 166,657 0.46% -20,202,000 1,020 0.363    N/A
   (FLEX)1 Year Chart         FLEX Flextronics International Ltd 64 - $49.89 $95,039,000 2,873,012 0.46% -16,324,000 -27,826 0.573    Printed Circuit Boards
   (TW)1 Year Chart         TW Tradeweb Markets Inc. 65 - $144.93 $93,535,000 630,032 0.46% 18,051,000 53,464 0.544    N/A
   (KD)1 Year Chart         KD Kyndryl Holdings, Inc. 66 - $41.46 $91,436,000 2,911,964 0.44% -68,063,000 -1,697,835 1.299    N/A
   (FICO)1 Year Chart         FICO Fair Isaac Corp 67 - $1,816.26 $90,044,000 48,827 0.44% 5,143,000 6,183 0.168    Business Services
   (SLNO)1 Year Chart         SLNO Soleno Therapeutics Inc 68 - $0.16 $86,543,000 1,211,245 0.42% 46,921,000 329,785 1.521    N/A
   (PLMR)1 Year Chart         PLMR Palomar Holdings, Inc. 69 - $153.38 $84,797,000 618,598 0.41% 22,134,000 25,138 2.424    N/A
   (ITT)1 Year Chart         ITT ITT Corporation 70 - $157.95 $82,071,000 635,419 0.4% -24,079,000 -107,510 0.735    Industrial Electrical...
   (PCVX)1 Year Chart         PCVX Vaxcyte, Inc. 71 - $0.00 $81,378,000 2,155,137 0.4% -128,737,000 -411,622 1.579    N/A
   (IEX)1 Year Chart         IEX Idex Corp 72 - $176.32 $80,568,000 445,203 0.39% 6,426,000 90,947 0.588    Diversified Machinery
   (ABC)1 Year Chart         ABC AmerisourceBergen Corp 73 New $299.42 $80,359,000 288,969 0.39% 80,359,000 288,969 0.142    Drugs Wholesale
   (TWLO)1 Year Chart         TWLO Twilio Inc 74 - $122.74 $80,185,000 818,964 0.39% 2,192,000 97,337 0.486    N/A
   (KMPR)1 Year Chart         KMPR Kemper Corporation 75 - $64.08 $79,730,000 1,192,664 0.39% 6,985,000 97,770 1.823    Property & Casualty I...
   (RYAN)1 Year Chart         RYAN Ryan Specialty Group Holdin... 76 - $67.58 $79,649,000 1,078,233 0.39% 36,753,000 409,649 0.981    N/A
   (APP)1 Year Chart         APP Applovin Corp 77 - $333.78 $78,746,000 297,188 0.38% -33,917,000 -50,720 0.137    N/A
   (ROKU)1 Year Chart         ROKU Roku, Inc 78 - $86.94 $78,734,000 1,117,739 0.38% -4,466,000 -1,444 1.026    N/A
   (PRI)1 Year Chart         PRI Primerica, Inc. 79 - $268.53 $78,594,000 276,225 0.38% 13,418,000 36,095 0.703    Investment Brokerage ...
   (WSC)1 Year Chart         WSC Willscot Mobile Mini Holdin... 80 - $28.38 $77,926,000 2,803,085 0.38% -14,215,000 48,502 1.231    N/A
   (SPGI)1 Year Chart         SPGI S&P Global Inc 81 - $517.71 $76,926,000 151,399 0.37% 1,986,000 925 0.045    Publishing
   (BFAM)1 Year Chart         BFAM Bright Horizons Family Solu... 82 - $122.31 $75,632,000 595,338 0.37% -2,751,000 -111,767 0.935    Personal Services
   (EWBC)1 Year Chart         EWBC East West Bancorp Inc 83 - $101.11 $73,361,000 817,306 0.36% 47,530,000 547,556 0.578    Domestic Regional Banks
   (MTSI)1 Year Chart         MTSI MA Com Technology Solutions... 84 - $92.81 $72,465,000 721,904 0.35% -56,234,000 -268,775 1.079    N/A
   (BIRK)1 Year Chart         BIRK Birkenstock Holding 85 New $0.00 $72,108,000 1,572,685 0.35% 72,108,000 1,572,685 0.837    N/A
   (SFM)1 Year Chart         SFM Sprouts Farmers Market, Inc. 86 New $162.13 $71,699,000 469,725 0.35% 71,699,000 469,725 0.398    N/A
   (RYTM)1 Year Chart         RYTM Rhythm Pharmaceuticals, Inc. 87 New $62.73 $71,038,000 1,341,092 0.35% 71,038,000 1,341,092 1.891    N/A
   (PR)1 Year Chart         PR Permian Resources Corp 88 - $13.74 $70,431,000 5,085,292 0.34% -2,750,000 -3,791 0.725    N/A
   (AVY)1 Year Chart         AVY Avery Dennison Corporation 89 - $175.63 $70,132,000 394,064 0.34% -3,794,000 -990 0.472    Paper & Paper Products
   (AME)1 Year Chart         AME Ametek Inc 90 - $180.53 $70,040,000 406,878 0.34% -4,112,000 -4,481 0.177    Industrial Electrical...
   (PSTG)1 Year Chart         PSTG Pure Storage, Inc. 91 - $55.40 $68,967,000 1,557,874 0.34% -37,532,000 -175,792 0.479    N/A
   (TRU)1 Year Chart         TRU Transunion 92 - $87.26 $68,884,000 830,028 0.34% -29,518,000 -231,372 0.408    N/A
   (JBHT)1 Year Chart         JBHT JB Hunt Transport Services Inc 93 - $145.34 $67,695,000 457,555 0.33% -11,089,000 -4,086 0.433    Trucking
   (APO)1 Year Chart         APO Apollo Global Management LLC 94 - $142.92 $67,594,000 493,602 0.33% -598,000 80,715 0.082    Diversified Investments
   (BIN)1 Year Chart         BIN Waste Connections, Inc 95 - $185.90 $66,762,000 342,037 0.32% 7,133,000 -5,494 0.13    Waste Management
   (NU)1 Year Chart         NU Nu Holdings Ord Shs Class A 96 - $0.00 $66,580,000 6,501,928 0.32% -1,505,000 -70,030 0.188    N/A
   (DSGX)1 Year Chart         DSGX Descartes Systems Group (USA) 97 - $101.44 $65,785,000 652,431 0.32% -1,858,000 56,983 0.772    Business Software & S...
   (BMI)1 Year Chart         BMI Badger Meter Inc 98 New $246.06 $65,448,000 344,010 0.32% 65,448,000 344,010 1.181    Scientific & Technica...
   (FN)1 Year Chart         FN Fabrinet 99 - $295.62 $64,613,000 327,137 0.31% -25,850,000 -84,285 0.738    Electronic Equipment
   (IRTC)1 Year Chart         IRTC Irhythm Technologies, Inc. 100 - $154.71 $64,596,000 617,078 0.31% -4,407,000 -148,175 1.708    N/A

      100 Records Found
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