Roblox Corporation
Roblox Corporation (RBLX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · RBLX · as of Sep 30, 2025
Ownership Breakdown
1,108
Institutional Holders
▲ 117 vs Q2
$73.20B
Total Inst. Value
▲ $18.17B vs Q2
715.98M
Shares Outstanding
freeFloat 90.03%
529.02M
13F Shares Held
▲ 5.74M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
RBLX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC services-prepackaged software | 62.44M | 9.12% | 9.12% | $8.65T | Nov 7, 2025 | ▲ 3.28M |
FMR LLC services-prepackaged software | 46.52M | 6.79% | 6.79% | $6.44T | Nov 13, 2025 | ▼ 2.99M |
BLACKROCK, INC. services-prepackaged software | 39.38M | 5.75% | 5.75% | $5.46T | Nov 12, 2025 | ▲ 4.78M |
CAPITAL INTERNATIONAL INVESTORS services-prepackaged software | 29.77M | 4.35% | 4.35% | $4.12T | Nov 13, 2025 | ▼ 644.0K |
BAILLIE GIFFORD & CO services-prepackaged software | 23.30M | 3.40% | 3.40% | $3.23T | Oct 31, 2025 | ▼ 3.08M |
JPMORGAN CHASE & CO services-prepackaged software | 19.92M | 2.91% | 2.91% | $2.76T | Nov 26, 2025 | ▲ 15.72M |
MORGAN STANLEY services-prepackaged software | 19.17M | 2.80% | 2.80% | $2.66T | May 27, 2026 | ▲ 1.04M |
IEQ CAPITAL, LLC services-prepackaged software | 17.47M | 2.55% | 2.55% | $2.42T | Nov 14, 2025 | ▼ 1.31M |
STATE STREET CORP services-prepackaged software | 13.37M | 1.95% | 1.95% | $1.85T | Nov 14, 2025 | ▲ 1.33M |
CAPITAL WORLD INVESTORS services-prepackaged software | 12.99M | 1.90% | 1.90% | $1.80T | Nov 13, 2025 | ▼ 1.12M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
26
Increased
+40.52M shares0
New Positions
first time holders24
Decreased
−28.34M shares0
Sold Out
fully exitedNet shares change (top 50)
+12.18M
+40.52M / −28.34M
Net new holders
+2
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
RBLX insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
12
Buy transactions
42
Sell transactions
0.29
Buy/Sell ratio
$3M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Baszucki Gregory director | Jun 1, 2026 | Sale | 5,200 | $46.32 | $240.9K | 8.97M | Form 4 ↗ |
Baszucki Gregory director | Jun 1, 2026 | Sale | 3,133 | $47.14 | $147.7K | 8.97M | Form 4 ↗ |
Baszucki Gregory director | Jun 1, 2026 | Sale | 5,200 | $46.32 | $240.9K | 1.29M | Form 4 ↗ |
Baszucki Gregory director | Jun 1, 2026 | Sale | 3,133 | $47.14 | $147.7K | 1.29M | Form 4 ↗ |
Lee Anthony P director | May 28, 2026 | Award | 5,185 | — | — | 5.2K | Form 4 ↗ |
Mastantuono Gina director | May 28, 2026 | Award | 5,185 | — | — | 19.6K | Form 4 ↗ |
Mastantuono Gina director | May 27, 2026 | J-Other | 1,126 | — | — | 14.4K | Form 4 ↗ |
Mastantuono Gina director | May 27, 2026 | J-Other | 1,126 | — | — | 4.5K | Form 4 ↗ |
Baszucki Gregory director | May 28, 2026 | Award | 5,185 | — | — | 5.2K | Form 4 ↗ |
Baszucki Gregory director | May 27, 2026 | J-Other | 1,126 | — | — | 4.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Roblox Corporation (RBLX) is primarily owned by institutional investors, who hold approximately 73.9% of total shares outstanding. Company insiders own approximately 9.97%, while retail and public investors account for the remaining 16.14%.
The largest institutional shareholder of Roblox Corporation is VANGUARD GROUP INC, holding approximately 62.44 million shares — equal to 9.12% of outstanding shares — as of September 30, 2025.
A total of 1,108 institutional investors currently hold RBLX stock, with a combined institutional value of approximately $73.20 billion as of the most recent 13F filing period.
Frequently asked questions
RBLX ownershipRoblox Corporation (RBLX) is primarily owned by institutional investors, who hold approximately 73.9% of shares. The largest shareholder is VANGUARD GROUP INC with a 9.12% stake. Company insiders hold 9.97%. Data sourced from SEC Form 13F as of September 30, 2025.