WESTFIELD CAPITAL MANAGEMENT CO LP

CIK

1177719

City

BOSTON

State / Country

Stock

HUBS — Hubspot Inc

Top Portfolio Positions

243 positions · $23,810,970,015 total · as of Mar 31, 2026

Ticker	Company	Shares	Value (USD)	% of Portfolio
NVDA	Nvidia Corp Technology	6,317,039	$1,101,691,601	4.63%
ASND	Ascendis Pharma A/S Healthcare	4,813,440	$1,100,978,131	4.62%
FIX	Comfort Systems USA Inc Industrials	620,915	$856,235,575	3.60%
AAPL	Apple Inc. Technology	3,133,113	$795,152,748	3.34%
FTAI	FTAI Aviation Ltd. Industrials	2,848,227	$697,815,615	2.93%
MSFT	Microsoft Corp Technology	1,649,513	$610,600,227	2.56%
GOOGL	Alphabet Inc. Communication Services	2,026,744	$582,810,504	2.45%
HWM	Howmet Aerospace Inc. Industrials	2,289,697	$527,683,570	2.22%
VRT	Vertiv Holdings Co Industrials	1,921,696	$481,538,583	2.02%
AMZN	Amazon Com Inc Consumer Cyclical	2,279,654	$474,783,538	1.99%

25 quarters · across all stocks

25 quarters on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$56,869,441	232,976	-33.8%	Shares	Sole	2026-05-11
2025-12-31	$141,319,400	352,154	+162.5%	Shares	Sole	2026-02-11
2025-09-30	$62,767,065	134,175	+7.0%	Shares	Sole	2025-11-12
2025-06-30	$69,805,298	125,407	-24.8%	Shares	Sole	2025-08-12
2025-03-31	$95,209,477	166,657	+0.6%	Shares	Sole	2025-05-09
2024-12-31	$115,410,892	165,637	-5.8%	Shares	Sole	2025-02-11
2024-09-30	$93,434,016	175,760	-9.0%	Shares	Sole	2024-11-12
2024-06-30	$113,954,505	193,212	-0.6%	Shares	Sole	2024-08-14
2024-03-31	$121,826,446	194,437	+1.3%	Shares	Sole	2024-05-10
2023-12-31	$111,469,485	192,010	-0.8%	Shares	Sole	2024-02-09
2023-09-30	$95,314,510	193,532	-39.3%	Shares	Sole	2023-11-13
2023-06-30	$169,703,720	318,938	-6.1%	Shares	Sole	2023-08-11
2023-03-31	$145,696,110	339,816	-17.7%	Shares	Sole	2023-05-12
2022-12-31	$119,397,679	412,955	+30.1%	Shares	Sole	2023-02-13
2022-09-30	$85,720,421	317,342	-0.5%	Shares	Sole	2022-11-14
2022-06-30	$95,858,945	318,839	+12.7%	Shares	Sole	2022-08-12
2022-03-31	$134,327,755	282,831	+10.6%	Shares	Sole	2022-05-16
2021-12-31	$168,613,865	255,805	-8.2%	Shares	Sole	2022-02-10
2021-09-30	$188,313,375	278,533	+6.8%	Shares	Sole	2021-11-12
2021-06-30	$151,930,254	260,726	-11.9%	Shares	Sole	2021-08-10
2021-03-31	$134,404,372	295,908	-14.4%	Shares	Sole	2021-05-14
2020-12-31	$137,019,575	345,625	-3.4%	Shares	Sole	2021-02-12
2020-09-30	$104,514,890	357,646	-1.5%	Shares	Sole	2020-11-13
2020-06-30	$81,487,733	363,217	+18.2%	Shares	Sole	2020-08-13
2020-03-31	$40,915,035	307,193	—	Shares	Sole	2020-05-14
No 13F history on record for this holder in this stock.