WESTFIELD CAPITAL MANAGEMENT CO LP
Institutional investor · Portfolio as of Q2 2023
Top Holdings227 positions
Apple Inc. | 2.7M | $532.6M | 3.4% | $42.46 | +350.17% | 19 qtrssince 2018-Q4 | Decreased 0 |
Microsoft Corp. | 1.4M | $470.5M | 3.0% | $117.50 | +182.58% | 19 qtrssince 2018-Q4 | Decreased 0 |
Alphabet Inc. | 3.4M | $405.7M | 2.6% | $60.79 | +95.06% | 19 qtrssince 2018-Q4 | Increased 57 |
ICON PLC | 1.4M | $344.6M | 2.2% | $168.57 | +43.93% | 19 qtrssince 2018-Q4 | Increased 53 |
TRANSDIGM GROUP INC | 363,795 | $325.3M | 2.1% | $389.05 | +96.46% | 19 qtrssince 2018-Q4 | Decreased 0 |
ASCENDIS PHARMA A/S | 3.6M | $324.1M | 2.1% | $112.36 | -22.13% | 19 qtrssince 2018-Q4 | Increased 61 |
Amazon.com, Inc. | 2.4M | $315.2M | 2.0% | $91.92 | +41.82% | 19 qtrssince 2018-Q4 | Increased 65 |
Visa Inc | 1.1M | $259.1M | 1.6% | $160.99 | +43.91% | 19 qtrssince 2018-Q4 | Increased 51 |
NVIDIA Corp. | 533,850 | $225.8M | 1.4% | $17.51 | +140.91% | 15 qtrssince 2019-Q4 | Increased 54 |
BUILDERS FIRSTSOURCE INC | 1.6M | $223.4M | 1.4% | $114.99 | +18.28% | 2 qtrssince 2023-Q1 | Increased 78 |
Fortinet Inc | 2.9M | $215.9M | 1.4% | $36.64 | +104.96% | 19 qtrssince 2018-Q4 | Increased 50 |
Meta Platforms Inc | 724,503 | $207.9M | 1.3% | $245.33 | +15.87% | 2 qtrssince 2023-Q1 | Increased 76 |
UnitedHealth Group Inc. | 425,707 | $204.6M | 1.3% | $481.77 | -6.68% | 8 qtrssince 2021-Q3 | Decreased 0 |
CHIPOTLE MEXICAN GRILL INC | 91,804 | $196.4M | 1.2% | $31.26 | +36.85% | 4 qtrssince 2022-Q3 | Decreased 0 |
Eli Lilly & Co. | 396,950 | $186.2M | 1.2% | $320.01 | +43.26% | 5 qtrssince 2022-Q2 | Increased 49 |
INSPIRE MED SYS INC COM | 563,667 | $183M | 1.2% | $255.27 | +25.04% | 6 qtrssince 2022-Q1 | Increased 62 |
Servicenow Inc | 311,402 | $175M | 1.1% | $40.80 | +175.49% | 19 qtrssince 2018-Q4 | Decreased 0 |
SAIA INC | 506,741 | $173.5M | 1.1% | $175.89 | +94.67% | 12 qtrssince 2020-Q3 | Increased 48 |
Ametek, Inc. | 1.1M | $173.5M | 1.1% | $68.04 | +133.38% | 19 qtrssince 2018-Q4 | Decreased 0 |
HUBSPOT INC | 318,938 | $169.7M | 1.1% | $245.79 | +116.48% | 16 qtrssince 2019-Q3 | Decreased 0 |
WESTFIELD CAPITAL MANAGEMENT CO LP manages $15.7B across 227 positions as of Q2 2023. Top holdings: AAPL (3.4%), MSFT (3.0%), GOOGL (2.6%). Fund DNA: Balanced Allocator. HoldingsIntel Score: 2/5.0.
Active quarter - 32 new positions, 27 exits, 112 increased. Top move: BLDR (INCREASED, conviction 78). Portfolio: $15.7B across 227 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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