Position in RMBS
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$51,212,552
+$49,970,623 QoQ
Shares Held
385,811
+2572.6% QoQ
Ownership
0.357%
of shares outstanding
% of Portfolio
0.17%
of 13F equity value
Holder Rank
#45
of 618 holders
Holding Since
Mar 2024
10 quarters on record
Voting authority
Sole 95%
Shared 0%
None 5%
Common Shares in RMBS 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. RMBS ranks #13 (1.3% 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
|
1,639,111 | $149,486,923 | |
| 8 | ALAB |
Astera Labs, Inc.
|
249,299 | $120,416,402 |
All Filings in RMBS
Export CSV
10 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $51,212,552 | 385,811 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $1,241,929 | 14,436 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $33,272,633 | 362,092 | Shares | Sole | 2026-02-11 | |
| 2025-09-30 | $50,481,253 | 484,465 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $61,614,064 | 962,419 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $56,392,614 | 1,089,081 | Shares | Sole | 2025-05-09 | |
| 2024-12-31 | $73,450,978 | 1,389,538 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $38,092,403 | 902,236 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $32,067,682 | 545,740 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $20,276,955 | 328,053 | Shares | Sole | 2024-05-10 | |
| No filing history on record for this holder in this stock. | ||||||