WESTFIELD CAPITAL MANAGEMENT CO LP

13F Filings History

Latest 13F report
Q4 2024 - Feb 11, 2025
Value $
$23B
Signature - Title
Brandi McMahon - Vice President, Deputy Chief Compliance Officer
Location
Boston, MA
Summary
This page shows a list of all the recent 13F filings made by WESTFIELD CAPITAL MANAGEMENT CO LP. Form 13F is required to be filed within 45 days of the end of a calendar quarter. WESTFIELD CAPITAL MANAGEMENT CO LP reported 239 stock holdings with total value $23B as of Q4 2024. Top holdings included NVDA, AAPL, MSFT, ASND, and AMZN.
Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Date Filed
Q4 2024 239 $23B +$3.66B -$3.81B -$150M NVDA, AAPL, MSFT, ASND, AMZN 13F-HR 2/11/2025, 12:08 PM
Q3 2024 247 $22.1B +$3.77B -$3.13B +$639M NVDA, AAPL, MSFT, ASND, AMZN 13F-HR 11/12/2024, 05:12 PM
Q2 2024 248 $20.4B +$4.94B -$2.46B +$2.47B NVDA, MSFT, AAPL, ASND, AMZN 13F-HR 8/14/2024, 11:10 AM
Q1 2024 244 $19B +$2.39B -$2.43B -$34M MSFT, ASND, AAPL, NVDA, AMZN 13F-HR 5/10/2024, 04:01 PM
Q4 2023 239 $17.2B +$2.5B -$1.99B +$508M MSFT, ASND, AAPL, GOOGL, AMZN 13F-HR 2/9/2024, 04:01 PM
Q3 2023 258 $14.7B +$1.82B -$2.13B -$316M AAPL, GOOGL, MSFT, ASND, AMZN 13F-HR 11/13/2023, 04:01 PM
Q2 2023 227 $15.7B +$2.84B -$1.33B +$1.51B AAPL, MSFT, GOOGL, ICLR, TDG 13F-HR 8/11/2023, 04:54 PM
Q1 2023 222 $14.2B +$2.07B -$1.53B +$542M AAPL, MSFT, ASND, GOOGL, ICLR 13F-HR 5/12/2023, 05:22 PM
Q4 2022 226 $13B +$1.75B -$876M +$878M AAPL, ASND, MSFT, GOOGL, ICLR 13F-HR 2/13/2023, 03:19 PM
Q3 2022 229 $12.5B +$2B -$698M +$1.3B AAPL, MSFT, GOOGL, ASND, ICLR 13F-HR 11/14/2022, 08:05 AM
Q2 2022 235 $12.7B +$2.11B -$826M +$1.28B AAPL, GOOGL, MSFT, ICLR, ASND 13F-HR 8/12/2022, 05:16 PM
Q1 2022 235 $15.6B +$2.39B -$1.35B +$1.04B AAPL, GOOGL, MSFT, AMZN, ICLR 13F-HR 5/16/2022, 11:30 AM
Q4 2021 244 $16.8B +$2.17B -$1.77B +$400M AAPL, MSFT, GOOGL, AMZN, ICLR 13F-HR 2/10/2022, 03:00 PM
Q3 2021 235 $16.6B +$1.82B -$2.02B -$196M AAPL, GOOGL, MSFT, AMZN, ICLR 13F-HR 11/12/2021, 10:02 AM
Q2 2021 241 $16.7B +$2.27B -$2.9B -$624M AAPL, AMZN, GOOGL, MSFT, META 13F-HR 8/10/2021, 05:26 PM
Q1 2021 243 $16.1B +$2.77B -$3.98B -$1.21B AAPL, AMZN, GOOGL, MSFT, META 13F-HR 5/14/2021, 10:42 AM
Q4 2020 247 $16.9B +$2.15B -$2.1B +$48.6M AAPL, AMZN, MSFT, GOOGL, ZEN 13F-HR 2/12/2021, 06:35 AM
Q3 2020 235 $15.4B +$2.5B -$1.69B +$813M AAPL, AMZN, MSFT, GOOGL, META 13F-HR 11/13/2020, 10:54 AM
Q2 2020 230 $14.5B +$2B -$1.47B +$533M AMZN, AAPL, MSFT, GOOGL, NOW 13F-HR 8/13/2020, 09:29 AM
Q1 2020 216 $11.4B +$2.18B -$782M +$1.4B AAPL, MSFT, AMZN, GOOGL, NOW 13F-HR 5/14/2020, 10:01 AM
Q4 2019 231 $14B +$2.25B -$1.34B +$910M AAPL, GOOGL, AMZN, MSFT, META 13F-HR 2/13/2020, 12:20 PM
Q3 2019 234 $12.5B +$2.19B -$1.52B +$671M MDCO, MSFT, AAPL, AMZN, GOOGL 13F-HR 11/8/2019, 10:45 AM
Q2 2019 243 $13.3B +$1.71B -$1.38B +$331M AMZN, AAPL, MSFT, V, NOW 13F-HR 8/13/2019, 09:25 AM
Q1 2019 246 $13.1B +$1.45B -$1.24B +$211M AAPL, AMZN, MSFT, V, BA 13F-HR 5/14/2019, 11:52 AM
Q4 2018 240 $11.7B +$2.17B -$1.03B +$1.14B AAPL, AMZN, MSFT, UNH, V 13F-HR 2/8/2019, 04:02 PM
Q3 2018 249 $14.2B +$2.06B -$1.39B +$671M AAPL, AMZN, MSFT, V, GOOG 13F-HR 11/14/2018, 10:28 AM
Q2 2018 243 $13.4B +$2.03B -$1.33B +$701M AMZN, AAPL, META, V, MSFT 13F-HR 8/13/2018, 10:43 AM
Q1 2018 248 $13B +$1.78B -$1.57B +$213M AMZN, AAPL, META, V, MSFT 13F-HR 5/14/2018, 12:44 PM
Q4 2017 244 $13.1B +$1.62B -$1.57B +$50M AAPL, AMZN, META, MSFT, MAR 13F-HR 2/13/2018, 07:49 AM
Q3 2017 251 $13B +$2.31B -$576M +$1.73B AAPL, META, AMZN, MSFT, JAZZ 13F-HR 11/13/2017, 07:22 AM
Q2 2017 249 $11.7B +$1.81B -$1.36B +$456M AAPL, META, JAZZ, AMZN, MSFT 13F-HR 8/11/2017, 07:52 AM
Q1 2017 258 $11.6B +$1.88B -$1.68B +$198M AAPL, META, JAZZ, MSFT, AMZN 13F-HR 5/12/2017, 08:06 AM
Q4 2016 253 $11.4B +$1.82B -$1.79B +$31.7M AAPL, MSFT, META, CELG, V 13F-HR 2/10/2017, 01:22 PM
Q3 2016 249 $12.4B +$1.93B -$1.36B +$576M AAPL, MSFT, META, JAZZ, V 13F-HR 11/10/2016, 02:27 PM
Q2 2016 257 $12.1B +$1.83B -$1.55B +$279M AAPL, JAZZ, MSFT, CHTR, STEXXXX 13F-HR 8/12/2016, 09:37 AM
Q1 2016 251 $13.1B +$2.69B -$1.86B +$836M AAPL, JAZZ, UAL, META, STEXXXX 13F-HR 5/13/2016, 08:46 AM
Q4 2015 272 $14.9B +$3.22B -$1.94B +$1.28B AAPL, JAZZ, CELG, TEVA, META 13F-HR 2/11/2016, 12:21 PM
Q3 2015 262 $14.1B +$2.43B -$1.81B +$623M AAPL, TEVA, JAZZ, CELG, META 13F-HR 11/12/2015, 01:22 PM
Q2 2015 283 $16.4B +$2.81B -$2.01B +$796M AAPL, JAZZ, TEVA, ABBV, CELG 13F-HR 8/13/2015, 07:32 AM
Q1 2015 302 $17.4B +$3B -$1.31B +$1.69B AAPL, JAZZ, CELG, TEVA, B108PS 13F-HR 5/12/2015, 09:50 PM
Q4 2014 313 $17B +$2.37B -$1.53B +$842M AAPL, CELG, JAZZ, CBST, B108PS 13F-HR 2/12/2015, 06:12 PM
Q3 2014 300 $16.4B +$2.08B -$1.21B +$876M AAPL, CELG, JAZZ, B108PS, TEVA 13F-HR 11/12/2014, 01:42 PM
Q2 2014 313 $16.8B +$2.93B -$1.34B +$1.59B AAPL, CELG, B108PS, JAZZ, TEVA 13F-HR 8/12/2014, 05:34 PM
Q1 2014 324 $16.7B +$2.27B -$2.07B +$198M AAPL, GOOGLXXXX, B108PS, CELG, TEVA 13F-HR 5/12/2014, 04:57 PM
Q4 2013 324 $17B GOOGLXXXX, CELG, AAPL, B108PS, V 13F-HR 2/7/2014, 08:00 AM