WESTFIELD CAPITAL MANAGEMENT CO LP

Position in TSM — Taiwan Semiconductor Manufacturing Co Ltd

CIK 1177719 BOSTON, MA

Position in TSM

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$244,037,792

+$77,258,116 QoQ

Shares Held

510,999

+3.5% QoQ

Ownership

0.010%

of shares outstanding

% of Portfolio

0.80%

of 13F equity value

Holder Rank

#207

of 3,554 holders

Holding Since

Mar 2020

11 quarters on record

Voting authority Sole 71% Shared 0% None 29%

Technology · as of Jun 30, 2026

WESTFIELD CAPITAL MANAGEMENT CO LP holds $3,892,895,572 across 19 Semiconductors names. TSM ranks #4 (6.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	NVDA	Nvidia Corp	8,079,926	$1,616,712,393
2	AVGO	Broadcom Inc.	1,556,522	$587,976,185
3	MU	Micron Technology Inc	228,203	$263,412,440
4	TSM	Taiwan Semiconductor Manufacturing Co Ltd This page	510,999	$244,037,792
5	AMD	Advanced Micro Devices Inc	403,081	$234,153,783
6	SMTC	Semtech Corp	1,133,268	$183,419,425
7	MCHP	Microchip Technology Inc	1,639,111	$149,486,923
8	ALAB	Astera Labs, Inc.	249,299	$120,416,402

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$244,037,792	510,999	+3.5%	Shares	Sole	2026-08-12
2026-03-31	$166,779,676	493,504	+10.6%	Shares	Sole	2026-05-11
2025-12-31	$135,594,198	446,195	-4.5%	Shares	Sole	2026-02-11
2025-09-30	$130,539,587	467,398	-19.5%	Shares	Sole	2025-11-12
2025-06-30	$131,435,091	580,313	-11.5%	Shares	Sole	2025-08-12
2025-03-31	$108,790,922	655,367	-18.5%	Shares	Sole	2025-05-09
2024-12-31	$158,719,948	803,686	-14.0%	Shares	Sole	2025-02-11
2024-09-30	$162,252,239	934,256	-11.9%	Shares	Sole	2024-11-12
2024-06-30	$184,243,466	1,060,028	+24.1%	Shares	Sole	2024-08-14
2024-03-31	$116,246,289	854,438	+825.3%	Shares	Sole	2024-05-10
2020-03-31	$4,412,928	92,340	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.