Institutions / Westfield Capital Management Company, L.P. / Activity
Activity — Westfield Capital Management Company, L.P.
118 moves.
| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Q1 2026 as of | Add | Insmed Inc Common stock | $169.40M | +1.0M +239.51% | 1,468,459 1.01% of portfolio | high |
| Q1 2026 as of | Add | FTAI Aviation Ltd Common stock | $121.91M | +498K +21.17% | 2,848,227 2.93% of portfolio | high |
| Q1 2026 as of | Add | Axon Enterprise Inc Common stock | $98.93M | +233K +28.03% | 1,064,134 1.90% of portfolio | high |
| Q1 2026 as of | Add | ELI LILLY & Co Common stock | $80.05M | +87K +31.36% | 364,579 1.41% of portfolio | high |
| Q1 2026 as of | Add | Celsius Holdings, Inc. Common stock | $78.93M | +2.2M +144.07% | 3,768,911 0.56% of portfolio | high |
| Q1 2026 as of | Add | LPL Financial Holdings Inc. Common stock | $77.00M | +256K +40.91% | 881,506 1.11% of portfolio | high |
| Q1 2026 as of | Add | Plexus Corp Common stock | $76.82M | +379K +7294.10% | 384,493 0.33% of portfolio | high |
| Q1 2026 as of | Add | Palantir Technologies Inc Common stock | $76.06M | +520K +336.37% | 674,557 0.41% of portfolio | high |
| Q1 2026 as of | Add | Guardant Health, Inc. Common stock | $76.05M | +823K +152.70% | 1,362,539 0.53% of portfolio | high |
| Q1 2026 as of | Add | Astera Labs, Inc. Common stock | $72.86M | +665K +340.42% | 860,113 0.40% of portfolio | high |
| Q1 2026 as of | Add | NVIDIA Corp Common stock | $63.83M | +366K +6.15% | 6,317,039 4.62% of portfolio | high |
| Q1 2026 as of | Add | Rhythm Pharmaceuticals, Inc. Common stock | $57.57M | +662K +52.24% | 1,929,123 0.70% of portfolio | high |
| Q1 2026 as of | Add | Alnylam Pharmaceuticals Inc Common stock | $50.32M | +152K +162.77% | 245,539 0.34% of portfolio | high |
| Q1 2026 as of | Add | Fabrinet Common stock | $49.39M | +95K +49.80% | 284,874 0.62% of portfolio | medium |
| Q1 2026 as of | Add | APi Group Corp Common stock | $47.88M | +1.2M +34.22% | 4,634,929 0.79% of portfolio | medium |
| Q1 2026 as of | Add | MKS Inc Common stock | $47.57M | +207K +24.65% | 1,046,763 1.01% of portfolio | medium |
| Q1 2026 as of | Add | Ares Management Corporation Common stock | $46.00M | +422K +36.62% | 1,572,787 0.72% of portfolio | medium |
| Q1 2026 as of | Add | Credo Technology Group Holding Ltd Common stock | $42.76M | +456K +96.78% | 926,219 0.36% of portfolio | medium |
| Q1 2026 as of | Add | Braze, Inc. Common stock | $42.18M | +1.8M +81.68% | 3,973,906 0.39% of portfolio | medium |
| Q1 2026 as of | Add | Broadcom Inc. Common stock | $38.57M | +125K +11.20% | 1,236,925 1.61% of portfolio | medium |
| Q1 2026 as of | Add | RKLB Rocket Lab Corp Common Stock | $37.26M | +580K +22.38% | 3,172,611 0.85% of portfolio | medium |
| Q1 2026 as of | Add | Cencora Inc Common stock | $36.97M | +118K +36.87% | 436,909 0.58% of portfolio | medium |
| Q1 2026 as of | Add | Netflix Inc Common stock | $35.81M | +372K +23.31% | 1,969,994 0.79% of portfolio | medium |
| Q1 2026 as of | Add | Samsara Inc. Common stock | $35.46M | +1.1M +28.30% | 5,072,821 0.67% of portfolio | medium |
| Q1 2026 as of | Add | 00370M103 Common stock | $34.85M | +313K +30.99% | 1,322,938 0.62% of portfolio | medium |
| Q1 2026 as of | Add | Permian Resources Corp Common stock | $32.63M | +1.5M +25.71% | 7,481,457 0.67% of portfolio | medium |
| Q1 2026 as of | Add | Globe Life Inc. Common stock | $32.51M | +234K +38.37% | 842,423 0.49% of portfolio | medium |
| Q1 2026 as of | Add | Quanta Services Inc Common stock | $32.00M | +58K +21.31% | 331,816 0.76% of portfolio | medium |
| Q1 2026 as of | Add | Dynatrace, Inc. Common stock | $31.54M | +853K +25.41% | 4,209,594 0.65% of portfolio | medium |
| Q1 2026 as of | Add | Hilton Worldwide Holdings Inc. Common stock | $30.32M | +100K +27.87% | 457,425 0.58% of portfolio | medium |
| Q1 2026 as of | Add | Palo Alto Networks Inc Common stock | $30.14M | +188K +41.93% | 636,483 0.43% of portfolio | medium |
| Q1 2026 as of | Add | Diamondback Energy, Inc. Common stock | $29.43M | +149K +41.96% | 503,474 0.42% of portfolio | medium |
| Q1 2026 as of | Add | Dutch Bros Inc. Common stock | $27.04M | +534K +29.99% | 2,313,357 0.49% of portfolio | medium |
| Q1 2026 as of | Add | Targa Resources Corp Common stock | $26.69M | +106K +53.62% | 304,997 0.32% of portfolio | medium |
| Q1 2026 as of | Add | Keycorp /New Common stock | $23.12M | +1.2M +28.54% | 5,193,334 0.44% of portfolio | medium |
| Q1 2026 as of | Add | GeneDx Holdings Corp. Common stock | $22.53M | +351K +34.46% | 1,369,108 0.37% of portfolio | medium |
| Q1 2026 as of | Add | Kratos Defense & Security Solutions Inc Common stock | $22.39M | +318K +25.49% | 1,563,146 0.46% of portfolio | medium |
| Q1 2026 as of | Add | Robinhood Markets, Inc. Common stock | $22.23M | +321K +102.65% | 633,384 0.18% of portfolio | medium |
| Q1 2026 as of | Add | Itt Inc. Common stock | $22.08M | +116K +19.72% | 703,309 0.56% of portfolio | medium |
| Q1 2026 as of | Add | Everpure, Inc. Common stock | $20.93M | +355K +23.32% | 1,874,763 0.46% of portfolio | medium |
| Q1 2026 as of | Add | Zscaler, Inc. Common stock | $20.64M | +147K +52.39% | 427,919 0.25% of portfolio | medium |
| Q1 2026 as of | Add | Calix, Inc Common stock | $19.64M | +401K +35.00% | 1,546,101 0.32% of portfolio | medium |
| Q1 2026 as of | Add | Adaptive Biotechnologies Corp Common stock | $19.10M | +1.4M +33.89% | 5,436,718 0.32% of portfolio | medium |
| Q1 2026 as of | Add | StepStone Group Inc. Common stock | $18.68M | +391K +49.77% | 1,177,971 0.24% of portfolio | medium |
| Q1 2026 as of | Add | GE Vernova Inc. Common stock | $18.66M | +21K +12.01% | 199,306 0.73% of portfolio | medium |
| Q1 2026 as of | Add | Salesforce Inc Common stock | $17.45M | +93K +52.35% | 271,963 0.21% of portfolio | medium |
| Q1 2026 as of | Add | Howmet Aerospace Inc. Common stock | $16.26M | +71K +3.18% | 2,289,697 2.21% of portfolio | medium |
| Q1 2026 as of | Add | Wynn Resorts, Limited Common stock | $16.07M | +158K +27.21% | 740,013 0.32% of portfolio | medium |
| Q1 2026 as of | Add | TSM Taiwan Semiconductor Manufacturing Co Ltd ADR | $15.99M | +47K +10.60% | 493,504 0.70% of portfolio | medium |
| Q1 2026 as of | Add | Royal Caribbean Cruises Ltd Common stock | $15.72M | +57K +12.73% | 505,765 0.58% of portfolio | medium |