WESTFIELD CAPITAL MANAGEMENT CO LP
Institutional investor · Portfolio as of Q3 2023
Top Holdings234 positions
APPLE INC | 2.6M | $448.7M | 3.1% | $42.46 | +297.88% | 20 qtrssince 2018-Q4 | Decreased 0 |
ALPHABET INC | 3.3M | $427M | 2.9% | $60.79 | +113.24% | 20 qtrssince 2018-Q4 | Decreased 0 |
MICROSOFT CORP | 1.3M | $423.9M | 2.9% | $117.50 | +162.57% | 20 qtrssince 2018-Q4 | Decreased 0 |
ASCENDIS PHARMA A/S | 3.8M | $356M | 2.4% | $111.52 | -16.03% | 20 qtrssince 2018-Q4 | Increased 56 |
AMAZON COM INC | 2.4M | $302.6M | 2.1% | $91.92 | +38.29% | 20 qtrssince 2018-Q4 | Decreased 0 |
NVIDIA CORPORATION | 638,970 | $277.9M | 1.9% | $21.76 | +99.31% | 16 qtrssince 2019-Q4 | Increased 58 |
TRANSDIGM GROUP INC | 323,938 | $273.1M | 1.9% | $389.05 | +85.24% | 20 qtrssince 2018-Q4 | Decreased 0 |
VISA INC | 1.1M | $252.8M | 1.7% | $161.47 | +39.24% | 20 qtrssince 2018-Q4 | Increased 49 |
META PLATFORMS INC | 734,688 | $220.6M | 1.5% | $246.05 | +20.86% | 3 qtrssince 2023-Q1 | Increased 49 |
UNITEDHEALTH GROUP INC | 430,802 | $217.2M | 1.5% | $481.68 | -1.70% | 9 qtrssince 2021-Q3 | Increased 49 |
DEXCOM INC | 1.8M | $172.4M | 1.2% | $99.64 | -6.36% | 20 qtrssince 2018-Q4 | Increased 73 |
SERVICENOW INC | 303,647 | $169.7M | 1.2% | $40.80 | +174.02% | 20 qtrssince 2018-Q4 | Decreased 0 |
BUILDERS FIRSTSOURCE INC | 1.3M | $158.5M | 1.1% | $114.99 | +8.27% | 3 qtrssince 2023-Q1 | Decreased 0 |
SAIA INC | 386,496 | $154.1M | 1.0% | $175.89 | +126.64% | 13 qtrssince 2020-Q3 | Decreased 0 |
AMETEK INC | 1M | $153.7M | 1.0% | $68.04 | +113.38% | 20 qtrssince 2018-Q4 | Decreased 0 |
ELI LILLY & CO | 286,015 | $153.6M | 1.0% | $320.01 | +64.42% | 6 qtrssince 2022-Q2 | Decreased 0 |
INSPIRE MED SYS INC | 732,400 | $145.3M | 1.0% | $242.18 | -18.06% | 7 qtrssince 2022-Q1 | Increased 54 |
LPL FINL HLDGS INC | 599,104 | $142.4M | 1.0% | $108.17 | +117.03% | 20 qtrssince 2018-Q4 | Decreased 0 |
FORTINET INC | 2.4M | $141.6M | 1.0% | $36.73 | +59.34% | 20 qtrssince 2018-Q4 | Decreased 0 |
AXON ENTERPRISE INC | 696,193 | $138.5M | 0.9% | $197.51 | +0.75% | 4 qtrssince 2022-Q4 | Increased 69 |
WESTFIELD CAPITAL MANAGEMENT CO LP manages $14.7B across 234 positions as of Q3 2023. Top holdings: AAPL (3.1%), GOOGL (2.9%), MSFT (2.9%). Fund DNA: Balanced Allocator. HoldingsIntel Score: 2/5.0.
Active quarter - 31 new positions, 24 exits, 102 increased. Top move: DXCM (INCREASED, conviction 73). Portfolio: $14.7B across 234 positions.
Top holdings by portfolio weight
Portfolio allocation by GICS sector
Behavioral investing profile
Position Outcomes
Best and worst performing positions by estimated return
Top Winners
Top Losers
Cost basis estimates based on full filing history using quarter-end prices. Actual transaction prices are not disclosed in 13F filings.
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Data sourced from SEC EDGAR 13F filings. Not financial advice. Full disclaimer
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