RBRK Institutional Ownership
Top institutional (13F) holders of RBRK and 5%+ (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
54
Institutional value
$6.74B
Top holder
BlackRock, Inc.
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| BlackRock, Inc.holding company | 6.0% | Aug 7, 2026 | $802.01M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | 5.9% | Aug 14, 2026 | $780.12M |
| FMR LLCinvestment advisor | 5.5% | Aug 13, 2026 | $738.75M |
| Vanguard Portfolio Managementinvestment advisor | 5.0% | Aug 13, 2026 | $666.43M |
| Vanguard Capital Managementinvestment advisor | 4.1% | Aug 13, 2026 | $552.75M |
| Norges Bankother | 2.4% | Aug 12, 2026 | $326.69M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | 1.7% | Nov 6, 2026 | $323.7M |
| JANE STREET GROUP, LLCholding company | 1.8% | Aug 14, 2026 | $242.13M |
| STATE STREET CORPORATIONholding company | 1.7% | Sep 22, 2026 | $229.71M |
| JPMORGAN CHASE & COholding company | 1.3% | Aug 12, 2026 | $172.99M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLPinvestment advisor | 1.2% | Aug 14, 2026 | $165.97M |
| Clearbridge Investments, LLCinvestment advisor | 0.9% | Aug 13, 2026 | $126.61M |
| MORGAN STANLEYholding company | 0.9% | Aug 13, 2026 | $123.84M |
| BANK OF AMERICA CORP /DE/holding company | 0.8% | Aug 14, 2026 | $106.32M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | 0.8% | Aug 14, 2026 | $105.77M |
| UBS Group AGbank | 0.7% | Aug 13, 2026 | $100.74M |
| T. Rowe Price Associates, Inc.investment advisor | 0.7% | Aug 14, 2026 | $93.78M |
| GOLDMAN SACHS GROUP INCinvestment advisor | 0.7% | Aug 14, 2026 | $91.07M |
| CITADEL ADVISORS LLCinvestment advisor | 0.6% | Sep 1, 2026 | $87.14M |
| NORTHERN TRUST CORPinvestment advisor | 0.5% | Aug 13, 2026 | $69.71M |
| Bank of New York Mellon Corpholding company | 0.4% | Nov 5, 2026 | $69.63M |
| Capital International Investorsinvestment advisor | 0.5% | Aug 12, 2026 | $61.21M |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | 0.4% | Aug 14, 2026 | $58.74M |
| WELLS FARGO & COMPANY/MNinvestment advisor | 0.4% | Aug 14, 2026 | $51.16M |
| AllianceBernstein L.P.investment advisor | 0.6% | Aug 14, 2026 | $48.27M |
5%+ holders
Current stakes of 5% or more from Schedule 13D and 13G filings. A joint filing shows once, under its lead filer.
| Holder | Form | Stake | Filed |
|---|---|---|---|
| Bipul Sinhaindividual | SC 13D/A | 8.9% | Sep 12, 2025 |
| Barry Eggersindividualwith Lightspeed General Partner IX, L.P. and 15 others | SC 13G/A | 9.1% | Aug 14, 2025 |
| Arvind Nithrakashyapindividual | SC 13G | 11.5% | Feb 14, 2025 |
| AQR CAPITAL MANAGEMENT LLCinvestment advisorwith AQR Capital Management Holdings, LLC | SC 13G | 6.2% | Aug 13, 2026 |
| FMR LLCinvestment advisorwith Abigail P. Johnson | SC 13G | 5.3% | May 6, 2026 |
| BlackRock, Inc.holding company | SC 13G | 5.3% | Apr 27, 2026 |
| Vanguard Capital Managementinvestment advisor | SC 13G | 5.0% | Jul 31, 2026 |
| Vanguard Portfolio Managementinvestment advisor | SC 13G | 5.1% | Apr 29, 2026 |
Institutional ownership for companies related to RBRK
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.