WESTFIELD CAPITAL MANAGEMENT CO LP
Institutional investor · Portfolio as of Q3 2024
Top Holdings247 positions
Stock | Shares | Value | Weight | Avg Buy | Est. P&L | Held | Conviction |
|---|---|---|---|---|---|---|---|
NVIDIA CORP | 7.6M | $920.2M | 4.2% | $115.62 | +4.96% | 20 qtrssince 2019-Q4 | Increased 63 |
APPLE INC | 3.7M | $870.8M | 3.9% | $126.32 | +82.92% | 24 qtrssince 2018-Q4 | Decreased 0 |
MICROSOFT CORP | 1.9M | $823.8M | 3.7% | $211.16 | +100.82% | 24 qtrssince 2018-Q4 | Increased 60 |
ASCENDIS PHARMA A/S | 5.1M | $766.5M | 3.5% | $117.91 | +22.65% | 24 qtrssince 2018-Q4 | Increased 60 |
AMAZON.COM INC | 3.5M | $644.7M | 2.9% | $136.81 | +37.39% | 24 qtrssince 2018-Q4 | Increased 57 |
TRANSDIGM GROUP INC | 372,061 | $531M | 2.4% | $506.55 | +145.43% | 24 qtrssince 2018-Q4 | Increased 55 |
META PLATFORMS INC-CLASS A | 911,723 | $521.9M | 2.4% | $305.10 | +85.22% | 7 qtrssince 2023-Q1 | Increased 57 |
ALPHABET INC-CL A | 3.1M | $520.5M | 2.4% | $100.85 | +61.74% | 24 qtrssince 2018-Q4 | Increased 54 |
AXON ENTERPRISE INC | 1.2M | $469.7M | 2.1% | $248.78 | +58.91% | 8 qtrssince 2022-Q4 | Increased 60 |
VERTIV HOLDINGS CO-A | 3.6M | $359.3M | 1.6% | $61.09 | +60.81% | 5 qtrssince 2023-Q3 | Increased 49 |
SERVICENOW INC | 341,878 | $305.8M | 1.4% | $66.09 | +166.83% | 24 qtrssince 2018-Q4 | Decreased 0 |
COMFORT SYSTEMS USA INC | 708,180 | $276.4M | 1.2% | $257.36 | +50.80% | 4 qtrssince 2023-Q4 | Decreased 0 |
VISA INC-CLASS A SHARES | 896,716 | $246.6M | 1.1% | $163.21 | +65.96% | 24 qtrssince 2018-Q4 | Increased 49 |
Legend Biotech Corp. Sponsored ADR | 5M | $245.5M | 1.1% | $54.14 | -8.99% | 6 qtrssince 2023-Q2 | Increased 51 |
NETFLIX INC | 314,226 | $222.9M | 1.0% | $70.74 | 0.00% | 1 qtr | New 70 |
FTAI AVIATION LTD | 1.7M | $220.6M | 1.0% | $114.89 | +13.70% | 2 qtrssince 2024-Q2 | Increased 67 |
PROGRESSIVE CORP | 828,436 | $210.2M | 0.9% | $140.78 | +64.29% | 10 qtrssince 2022-Q2 | Decreased 0 |
OPTION CARE HEALTH INC | 6.5M | $203.2M | 0.9% | $29.84 | +5.30% | 14 qtrssince 2021-Q2 | Increased 48 |
BROADCOM INC | 1.2M | $203M | 0.9% | $168.36 | +1.38% | 24 qtrssince 2018-Q4 | Increased 70 |
VAXCYTE INC | 1.7M | $198.8M | 0.9% | $59.28 | +90.85% | 5 qtrssince 2023-Q3 | Decreased 0 |
WESTFIELD CAPITAL MANAGEMENT CO LP manages $22.1B across 247 positions as of Q3 2024. Top holdings: NVDA (4.2%), AAPL (3.9%), MSFT (3.7%). Fund DNA: Balanced Allocator. HoldingsIntel Rating: 3/5.0.
Active quarter - 42 new positions, 43 exits, 122 increased. Top move: NFLX (NEW, conviction 70). Portfolio: $22.1B across 247 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