WESTFIELD CAPITAL MANAGEMENT CO LP
Position in MCHP — Microchip Technology Inc
CIK 1177719
BOSTON, MA
Position in MCHP
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$149,486,923
+$86,796,164 QoQ
Shares Held
1,639,111
+68.9% QoQ
Ownership
0.302%
of shares outstanding
% of Portfolio
0.49%
of 13F equity value
Holder Rank
#56
of 1,305 holders
Holding Since
Mar 2020
22 quarters on record
Voting authority
Sole 88%
Shared 0%
None 12%
Common Shares in MCHP Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Jun 30, 2026WESTFIELD CAPITAL MANAGEMENT CO LP holds $3,892,895,572 across 19 Semiconductors names. MCHP ranks #7 (3.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 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
|
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
This page
|
1,639,111 | $149,486,923 | |
| 8 | ALAB |
Astera Labs, Inc.
|
249,299 | $120,416,402 |
All Filings in MCHP
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22 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $149,486,923 | 1,639,111 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $62,690,759 | 970,295 | Shares | Sole | 2026-05-11 | |
| 2024-12-31 | $8,392,025 | 146,330 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $11,301,299 | 140,756 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $50,297,550 | 549,700 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $11,679,972 | 130,197 | Shares | Sole | 2024-05-10 | |
| 2023-12-31 | $56,451,146 | 625,983 | Shares | Sole | 2024-02-09 | |
| 2023-09-30 | $63,782,928 | 817,206 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $80,689,502 | 900,653 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $76,571,401 | 913,958 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $72,198,875 | 1,027,742 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $120,203,650 | 1,969,583 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $126,011,123 | 2,169,613 | Shares | Sole | 2022-08-12 | |
| 2022-03-31 | $162,168,350 | 2,158,216 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $162,884,384 | 1,870,944 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $136,784,608 | 891,163 | Shares | Sole | 2021-11-12 | |
| 2021-06-30 | $140,166,972 | 936,069 | Shares | Sole | 2021-08-10 | |
| 2021-03-31 | $77,612,483 | 500,016 | Shares | Sole | 2021-05-14 | |
| 2020-12-31 | $78,982,346 | 571,880 | Shares | Sole | 2021-02-12 | |
| 2020-09-30 | $70,011,107 | 681,307 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $36,696,111 | 348,458 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $41,571,570 | 613,150 | Shares | Sole | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||