WESTFIELD CAPITAL MANAGEMENT CO LP
Position in STX — Seagate Technology Holdings plc
CIK 1177719
BOSTON, MA
Position in STX
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$48,958,310
New position
Shares Held
50,734
first reported quarter
Ownership
0.022%
of shares outstanding
% of Portfolio
0.16%
of 13F equity value
Holder Rank
#240
of 1,934 holders
Holding Since
Jun 2026
1 quarter on record
Voting authority
Sole 84%
Shared 0%
None 16%
Position in Computer Hardware
Technology · as of Jun 30, 2026WESTFIELD CAPITAL MANAGEMENT CO LP holds $580,391,730 across 6 Computer Hardware names. STX ranks #4 (8.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ANET |
Arista Networks, Inc.
|
1,317,096 | $223,748,268 | |
| 2 | P |
Everpure, Inc.
|
1,611,958 | $127,006,170 | |
| 3 | SNDK |
Sandisk Corp
|
49,024 | $111,467,339 | |
| 4 | STX |
Seagate Technology Holdings plc
This page
|
50,734 | $48,958,310 | |
| 5 | RGTI |
Rigetti Computing, Inc.
|
1,951,807 | $37,708,911 | |
| 6 | QBTS |
D-Wave Quantum Inc.
|
1,313,161 | $31,502,732 |
All Filings in STX
Export CSV
1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $48,958,310 | 50,734 | Shares | Sole | 2026-08-12 | |
| No filing history on record for this holder in this stock. | ||||||