Westfield Capital Management Company LP

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Westfield Capital Management Company LP ✚
CRD #	146990
SEC #	801-69413
CIK #	0001177719
AUM	$23.6 B (2025-04-30)
Employees	60 (32% Investors, 0% Brokers)
Phone	617-428-7100
Address	One Financial Center Boston, MA 02111
Source	[IAPD] [EDGAR] [Website] [Twitter]

Total AUM ($B) Copy

CIK	Period
0001177719	2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31

CIK

Period

0001177719

Sector	Form 13F Holdings	Value ($B)
	Nvidia Corp	1.3
	Microsoft Corp	1.0
	Ascendis Pharma A/S	0.9
	Apple Inc	0.8
	Amazon Com Inc	0.7
	Facebook Inc	0.7
	Taser International Inc	0.7
	Comfort Systems USA Inc	0.5
	Alphabet Inc	0.5
	Transdigm Group Inc	0.4
	Broadcom Inc	0.4
	Alcoa Inc	0.4
	Netflix Inc	0.4
	GS Acquisition Holdings Corp	0.3
	ServiceNow Inc	0.3
	Coach Inc	0.3
	VISA Inc	0.3
	LPL Investment Holdings Inc	0.3
	Lilly Eli & Co	0.2
	Legend Biotech Corp	0.2
	Brinker International Inc	0.2
	Fortress Transportation & Infrastructure Investors LLC	0.2
	Bank of America Corp /DE/	0.2
	Dexcom Inc	0.2
	Mondaycom Ltd	0.2
	Masimo Corp	0.2
	Fabrinet	0.2
	Ares Management LP	0.2
	Salesforce Com Inc	0.2
	Casella Waste Systems Inc	0.2
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Type	Form D Funds	Date	Sold ($M)	AUM ($M)
Other	Westfield Disruptive Innovation Fund LP	[2021-03-08]	0.6	2.1
Other	Westfield Health Care Fund LP	[2021-03-08]	2.5	4.0
Other	Westfield Emerging Markets Small Cap Fund LP	[2017-06-23]	10.0	11.5
Other	Westfield Global Dividend Growth Fund LP	[2016-11-15]	2.3	1.2
PE	Westfield Capital SPV I LP	[2015-10-15]	12.2	0.1
Other	Westfield Select Growth Equity LP	[2014-03-18]	7.5	31.4
HF	Westfield Absolute Return Fund Limited Partnership	2011-12-21		36.7
	Westfield Dividend Growth Fund Limited Partnership	[2011-12-21]	32.9	12.6
	Westfield Large Cap Growth Fund LP	2011-12-21		81.7
HF	Westfield Life Sciences Fund II Limited Partnership	[2011-12-21]		0.5
View All

AUM Breakdown	Accounts	AUM ($B)
By Client Type
(a) Individuals (other than high net worth individuals)	204	0.1
(b) Individuals (high net worth individuals)	460	1.2
(c) Banking or thrift institutions	0	0.0
(d) Investment companies	15	7.0
(e) Business development companies	0	0.0
(f) Pooled investment vehicles	15	3.6
(g) Pension and profit sharing plans	65	5.6
(h) Charitable organizations	110	1.3
(i) State or municipal government entities	36	3.7
(j) Other investment advisers	1	0.5
(k) Insurance companies	0	0.0
(l) Sovereign wealth funds and foreign official institutions	0	0.0
(m) Corporations or other businesses not listed above	69	0.4
(n) Other	0	0.0
Total	975	23.6
By Discretionary
Discretionary	975	23.6
Non-Discretionary	0	0.0
Total	975	23.6
By Non-United States Persons
Non-United States Persons		1.5
United States Persons		22.1
Total	975	23.6

Form D Directors	# Filings	# Firms	2011 - 2025
William Muggia	9
Westfield Partners LLC	6
Westfield Capital Management Company LP	5

EDGAR Form	CIK	2011 - 2025
13F-HR	[0001177719]
3	[0001177719]
SC 13G	[0001177719]

Form 13D/13G Filer	Form 13D/13G Subject	Filed
Westfield Capital Management Co LP	Bicycle Therapeutics PLC	[2025-02-11]
Westfield Capital Management Co LP	Flywire Corp	[2025-02-11]
Westfield Capital Management Co LP	Mural Oncology PLC	[2024-01-10]
Westfield Capital Management Co LP	Ascendis Pharma A/S	[2023-02-02]
Westfield Capital Management Co LP	Innoviva Inc	[2022-02-01]
Westfield Capital Management Co LP	Ironwood Pharmaceuticals Inc	[2021-01-07]
Westfield Capital Management Co LP	Sitime Corp	[2020-01-07]
Westfield Capital Management Co LP	Medicines Co /DE	[2019-02-07]
Westfield Capital Management Co LP	Rush Enterprises Inc TX	[2016-02-10]
Westfield Capital Management Co LP	PTC Therapeutics Inc	[2016-02-10]
View All

Form 3/4/5 Subject	2011 - 2025
Liberty All Star Growth Fund Inc
Westfield Capital Management Co LP

Comparable Firms	State	AUM ($B)
Muzinich & Co Inc ✚	NY	27.3
First Pacific Advisors LP ✚	CA	26.7
Voya Alternative Asset Management LLC ✚	NY	25.8
BTG Pactual Asset Management US LLC ✚	NY	25.6
Citi Global Alternatives LLC ✚	NY	24.4
Summit Rock Advisors LP ✚	NY	23.5
JP Morgan Alternative Asset Management Inc ✚	NY	21.8
Segall Bryant & Hamill LLC ✚	IL	21.3
Hirtle Callaghan & Co LLC ✚	PA	21.0
Thompson Siegel & Walmsley LLC ✚	VA	20.8

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Westfield Capital Management Company LP

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