Position in RBRK
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$75,247,086
New position
Shares Held
937,308
first reported quarter
Ownership
0.455%
of shares outstanding
% of Portfolio
0.25%
of 13F equity value
Holder Rank
#30
of 573 holders
Holding Since
Jun 2026
1 quarter on record
Voting authority
Sole 91%
Shared 0%
None 9%
Position in Software - Infrastructure
Technology · as of Jun 30, 2026WESTFIELD CAPITAL MANAGEMENT CO LP holds $1,560,354,849 across 12 Software - Infrastructure names. RBRK ranks #6 (4.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MSFT |
Microsoft Corp
|
1,414,294 | $527,559,947 | |
| 2 | PANW |
Palo Alto Networks Inc
|
658,331 | $224,504,037 | |
| 3 | NET |
Cloudflare, Inc.
|
835,502 | $204,931,930 | |
| 4 | IOT |
Samsara Inc.
|
5,836,459 | $189,276,365 | |
| 5 | SNPS |
Synopsys Inc
|
226,856 | $101,193,655 | |
| 6 | RBRK |
Rubrik, Inc.
This page
|
937,308 | $75,247,086 | |
| 7 | CORZ |
Core Scientific, Inc./tx
|
2,409,894 | $61,669,187 | |
| 8 | MDB |
MongoDB, Inc.
|
149,255 | $50,134,754 |
All Filings in RBRK
Export CSV
1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $75,247,086 | 937,308 | Shares | Sole | 2026-08-12 | |
| No filing history on record for this holder in this stock. | ||||||