Who owns RBLX? 13F holders and whale ownership
RBLX is tracked across public portfolios in Whale Analyzer. This page answers who owns RBLX, which top funds are buying RBLX, aggregate disclosed value, and recent position changes based on public data. Baillie Gifford is the largest reported holder at $1.21B; the top five funds control 94.8% of reported ownership; institutions were net selling last quarter (3 increased, 4 reduced); the stock trades above the aggregate whale cost basis of $1.63. Top tracked holders include Baillie Gifford, Cathie Wood, ValueAct Capital, and Whale Rock Capital.
Continue to the live RBLX dashboardTop holders
| Investor | Reported value | Shares | Change |
|---|---|---|---|
| Baillie Gifford 13F portfolio Baillie Gifford & Co holdings | $1.21B | 21.4M | Reduced |
| Cathie Wood 13F portfolio ARK Investment Management holdings | $333.5M | 5.9M | Increased |
| ValueAct Capital 13F portfolio ValueAct Capital Management holdings | $330.8M | 5.8M | Reduced |
| Whale Rock Capital 13F portfolio Whale Rock Capital Management holdings | $199.8M | 3.5M | Reduced |
| Foxhaven Asset Management 13F portfolio Foxhaven Asset Management holdings | $120.5M | 2.1M | Reduced |
| Gavin Baker 13F portfolio Atreides Management holdings | $78.3M | 1.4M | Increased |
| HMI Capital 13F portfolio HMI Capital Management holdings | $43.4M | 767.3K | New |
Ownership concentration
Reported ownership of RBLX is highly concentrated across tracked institutions.
- Single largest holder: 52.3% of reported ownership
- Top 5 holders: 94.8%
- Top 10 holders: 100.0%
Whale activity this quarter
Across 7 tracked institutions, 4 reduced, 3 increased. Net positioning is net selling.
- Baillie Gifford — Baillie Gifford & Co ($1.21B) (▼ 0.6% qoq shares) · avg cost $1.63
- Cathie Wood — ARK Investment Management ($333.5M) (▲ 22.0% qoq shares)
- ValueAct Capital — ValueAct Capital Management ($330.8M) (▼ 2.1% qoq shares)
- Whale Rock Capital — Whale Rock Capital Management ($199.8M) (▼ 14.0% qoq shares)
- Foxhaven Asset Management — Foxhaven Asset Management ($120.5M) (▼ 16.2% qoq shares)
- Gavin Baker — Atreides Management ($78.3M) (▲ 255.2% qoq shares)
Whale cost basis vs current price
The aggregate tracked cost basis is $1.63 versus a current price of $47.56, so RBLX trades above its cost basis (+2813.5%). Average unrealized P&L across tracked holders: 2705%.
Sector positioning — Information Technology
RBLX sits within the Information Technology sector alongside 131 other tracked names. Compare whale ownership across peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time ownership totals. Open the live RBLX dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- NVDA whale holders — NVIDIA
- AMZN whale holders — Amazon.Com
- MELI whale holders — MercadoLibre
- SPOT whale holders — Spotify Technology SA
- NU whale holders — Nu Holdings Ltd.
- SHOP whale holders — Shopify 'A'
- NET whale holders — Cloudflare Inc
- SE whale holders — Sea Ltd ADR
Learn more in Whale Analyzer Academy
Deepen your read on RBLX with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns RBLX stock?
Whale Analyzer tracks 7 public institutional holders of RBLX with a combined reported value of $2.32B. See the holder table above for the largest tracked positions.
Which top funds are buying RBLX?
Tracked institutions were net selling last quarter — 4 reduced, 3 increased. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is RBLX ownership?
The top five tracked holders report 94.8% of aggregate ownership.
Is RBLX above or below the whale cost basis?
The aggregate tracked cost basis is $1.63 versus a current price of $47.56 (+2813.5%).
What does 13F ownership mean for RBLX?
Use the interactive RBLX dashboard on Whale Analyzer for real-time holder analysis, or read our 13F Alpha Signals Guide.