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WESTFIELD CAPITAL MANAGEMENT CO LP

Position in RBLX — Roblox Corp

CIK 1177719 BOSTON, MA

Position in RBLX

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$53,607,912
+$16,198,792 QoQ
Shares Held
985,802
+113.5% QoQ
Ownership
0.138%
of shares outstanding
% of Portfolio
0.18%
of 13F equity value
Holder Rank
#63
of 789 holders
Holding Since
Jun 2025
4 quarters on record
Voting authority Sole 81% Shared 0% None 19%

Common Shares in RBLX Over Time

Shares Held

Position Value (USD)

Position in Electronic Gaming & Multimedia

Communication Services · as of Jun 30, 2026

WESTFIELD CAPITAL MANAGEMENT CO LP holds $53,607,912 across 1 Electronic Gaming & Multimedia name. RBLX ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 RBLX
Roblox Corp
This page
985,802 $53,607,912

All Filings in RBLX

Export CSV
4 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $53,607,912 985,802
2025-12-31 $37,409,120 461,670
2025-09-30 $164,779,929 1,189,575
2025-06-30 $120,040,879 1,141,073