WESTFIELD CAPITAL MANAGEMENT CO LP
Institutional investor · Portfolio as of Q3 2023
Top Holdings234 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
APPLE INC | 2.6M | $448.7M | 3.1% | $94.40 | +78.95% | 20 qtrssince 2018-Q4 | Decreased 0 |
ALPHABET INC-CL A | 3.3M | $427M | 2.9% | $96.15 | +35.07% | 20 qtrssince 2018-Q4 | Decreased 0 |
MICROSOFT CORP | 1.3M | $423.9M | 2.9% | $117.67 | +163.86% | 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% | $111.67 | +13.84% | 20 qtrssince 2018-Q4 | Decreased 0 |
NVIDIA CORP | 638,970 | $277.9M | 1.9% | $25.36 | +71.42% | 16 qtrssince 2019-Q4 | Increased 58 |
TRANSDIGM GROUP INC | 323,938 | $273.1M | 1.9% | $391.04 | +84.30% | 20 qtrssince 2018-Q4 | Decreased 0 |
VISA INC-CLASS A SHARES | 1.1M | $252.8M | 1.7% | $161.47 | +39.24% | 20 qtrssince 2018-Q4 | Increased 49 |
META PLATFORMS INC-CLASS A | 734,688 | $220.6M | 1.5% | $242.04 | +23.17% | 3 qtrssince 2023-Q1 | Increased 49 |
UNITEDHEALTH GROUP INC | 430,802 | $217.2M | 1.5% | $491.12 | -1.69% | 9 qtrssince 2021-Q3 | Increased 49 |
DEXCOM INC | 1.8M | $172.4M | 1.2% | $88.08 | +5.93% | 20 qtrssince 2018-Q4 | Increased 73 |
SERVICENOW INC | 303,647 | $169.7M | 1.2% | $41.19 | +171.41% | 20 qtrssince 2018-Q4 | Decreased 0 |
BUILDERS FIRSTSOURCE INC | 1.3M | $158.5M | 1.1% | $113.95 | +9.25% | 3 qtrssince 2023-Q1 | Decreased 0 |
SAIA INC | 386,496 | $154.1M | 1.0% | $175.69 | +126.91% | 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 FINANCIAL HOLDINGS 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% | $53.05 | +201.60% | 20 qtrssince 2018-Q4 | Decreased 0 |
AXON ENTERPRISE INC | 696,193 | $138.5M | 0.9% | $197.76 | +0.62% | 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 Rating: 3/5.0.
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
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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