This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/RBLX/capital-change-brief"
Use Arkolith's capital_change_brief for RBLX. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $2.6B | 46.6M | ▲+0.4% Added · +187K sh | Q1 2026 | |
| 2 | BlackRock, Inc. | $2.2B | 39.1M | ▼−5.9% Reduced · −2.4M sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.7B | 30.6M | ▲New +30.6M sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $1.6B | 28.6M | ▲New +28.6M sh | Q1 2026 | |
| 5 | MORGAN STANLEY | $1.3B | 23.1M | ▲+11% Added · +2.3M sh | Q1 2026 | |
| 6 | BAILLIE GIFFORD & CO | $1.2B | 21.4M | ▼−0.6% Reduced · −121K sh | Q1 2026 | |
| 7 | PRICE T ROWE ASSOCIATES INC /MD/ | $1.1B | 19.1M | ▲+391% Added · +15.2M sh | Q1 2026 | |
| 8 | IEQ CAPITAL, LLC | $935.0M | 16.5M | ▼−4.1% Reduced · −715K sh | Q1 2026 | |
| 9 | STATE STREET CORP | $805.2M | 14.2M | ▲+3.1% Added · +423K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $692.1M | 12.3M | ▲+0.4% Added · +46K sh | Q1 2026 | |
| 11 | TWO SIGMA INVESTMENTS, LP | $681.2M | 12.0M | ▲+300% Added · +9.0M sh | Q1 2026 | |
| 12 | AQR CAPITAL MANAGEMENT LLC | $449.9M | 8.3M | ▼−20% Reduced · −2.0M sh | Q1 2026 | |
| 13 | Temasek Holdings (Private) Ltd | $439.9M | 7.8M | —Held | Q1 2026 | |
| 14 | RENAISSANCE TECHNOLOGIES LLC | $403.1M | 7.1M | ▲+7.5% Added · +498K sh | Q1 2026 | |
| 15 | JPMORGAN CHASE & CO | $349.7M | 6.7M | ▼−65% Reduced · −12.8M sh | Q1 2026 | |
| 16 | SRS Investment Management, LLC | $373.4M | 6.6M | ▲+125% Added · +3.7M sh | Q1 2026 | |
| 17 | GOLDMAN SACHS GROUP INC | $344.7M | 6.1M | ▲+55% Added · +2.2M sh | Q1 2026 | |
| 18 | ARK Investment Management LLC | $333.5M | 5.9M | ▲+22% Added · +1.1M sh | Q1 2026 | |
| 19 | ValueAct Holdings, L.P. | $330.8M | 5.8M | ▼−2.1% Reduced · −127K sh | Q1 2026 | |
| 20 | Artisan Partners Limited Partnership | $328.7M | 5.8M | ▲+154% Added · +3.5M sh | Q1 2026 | |
| 21 | Amundi | $326.6M | 5.8M | ▲+84% Added · +2.6M sh | Q1 2026 | |
| 22 | FIL Ltd | $320.4M | 5.7M | ▲48× Added · +5.5M sh | Q1 2026 | |
| 23 | NORGES BANK | $435.4M | 5.4M | ▲+61% Added · +2.0M sh | Q4 2025 | |
| 24 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $301.1M | 5.3M | ▼−8.3% Reduced · −480K sh | Q1 2026 | |
| 25 | D. E. Shaw & Co., Inc. | $255.4M | 4.5M | ▼−25% Reduced · −1.5M sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 14, 2026 | Rawlings Amy Marie | Chief Accounting Officer | Grant (A) | 7K | $0 |
| Jul 6, 2026 | Reinstra Mark | Chief Legal Off. & Corp. Sec. | Sell (S) | 200 | $11K |
| Jul 6, 2026 | Reinstra Mark | Chief Legal Off. & Corp. Sec. | Sell (S) | 3K | $184K |
| Jul 6, 2026 | Reinstra Mark | Chief Legal Off. & Corp. Sec. | Sell (S) | 1K | $64K |
| Jul 1, 2026 | Baszucki Gregory | Director | Sell (S) | 650 | $36K |
| Jul 1, 2026 | Baszucki Gregory | Director | Sell (S) | 2K | $129K |
| Jul 1, 2026 | Baszucki Gregory | Director | Sell (S) | 5K | $315K |
| Jul 1, 2026 | Baszucki Gregory | Director | Sell (S) | 650 | $36K |
| Jul 1, 2026 | Baszucki Gregory | Director | Sell (S) | 2K | $129K |
| Jul 1, 2026 | Baszucki Gregory | Director | Sell (S) | 5K | $315K |
| Jun 15, 2026 | Rawlings Amy Marie | Chief Accounting Officer | Grant (A) | 32K | $0 |
| Jun 8, 2026 | Reinstra Mark | Chief Legal Off. & Corp. Sec. | Sell (S) | 6K | $249K |
| Company | Co-held by | Combined value |
|---|---|---|
| AMAZON.COM INCAMZN | 279 funds | $207.4B |
| MICROSOFT CORPMSFT | 275 funds | $262.6B |
| META PLATFORMS INC-CLASS AMETA | 275 funds | $115.6B |
| NVIDIA CORPNVDA | 273 funds | $390.9B |
| APPLE INCAAPL | 266 funds | $282.0B |
| BROADCOM INCAVGO | 266 funds | $147.4B |
| ALPHABET INC-CL AGOOGL | 265 funds | $168.1B |
| ALPHABET INC-CL CGOOG | 259 funds | $118.4B |
| TESLA INCTSLA | 258 funds | $74.0B |
| VISA INC-CLASS A SHARESV | 258 funds | $59.4B |
| NETFLIX INCNFLX | 258 funds | $47.9B |
| ELI LILLY & COLLY | 256 funds | $71.2B |
Ranked by how many of RBLX's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for RBLX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.