174 tracked 13F filers disclose a position in RUM as of the latest SEC 13F filings, a combined $234.0M in reported value. 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.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | CANTOR FITZGERALD, L. P. | $47.6M | 9.3M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $40.2M | 7.9M | ▼−1.2% Reduced · −95K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $20.5M | 4.0M | →First observed position No prior filed position | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $20.5M | 4.0M | →First observed position No prior filed position | Q1 2026 | |
| 5 | STATE STREET CORP | $17.0M | 3.3M | ▲+8.1% Added · +249K sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $14.3M | 2.8M | ▼−0.6% Reduced · −17K sh | Q1 2026 | |
| 7 | GOLDMAN SACHS GROUP INC | $10.6M | 2.1M | ▲+154% Added · +1.3M sh | Q1 2026 | |
| 8 | UBS Group AG | $8.2M | 1.6M | ▲+92% Added · +769K sh | Q1 2026 | |
| 9 | MORGAN STANLEY | $5.2M | 1.0M | ▼−59% Reduced · −1.5M sh | Q1 2026 | |
| 10 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $4.6M | 908K | ▼−0.5% Reduced · −4K sh | Q1 2026 | |
| 11 | NATIONAL BANK OF CANADA /FI/ | $4.6M | 895K | ▲+69% Added · +364K sh | Q1 2026 | |
| 12 | NORTHERN TRUST CORP | $4.3M | 847K | ▲+5.1% Added · +41K sh | Q1 2026 | |
| 13 | VANGUARD FIDUCIARY TRUST CO | $3.7M | 726K | →First observed position No prior filed position | Q1 2026 | |
| 14 | AMERIPRISE FINANCIAL INC | $3.2M | 628K | ▲+0.4% Added · +3K sh | Q1 2026 | |
| 15 | JANE STREET GROUP, LLC | $2.2M | 432K | ▲+216% Added · +295K sh | Q1 2026 | |
| 16 | MARSHALL WACE, LLP | $2.1M | 417K | ▲+146% Added · +248K sh | Q1 2026 | |
| 17 | Sculptor Capital LP | $2.0M | 390K | ▲+137% Added · +226K sh | Q1 2026 | |
| 18 | Bank of New York Mellon Corp | $1.6M | 322K | ▲+0.5% Added · +1K sh | Q1 2026 | |
| 19 | Nuveen, LLC | $1.1M | 223K | ▲+0.5% Added · +1K sh | Q1 2026 | |
| 20 | Numerai GP LLC | $931K | 183K | ▲+238% Added · +129K sh | Q1 2026 | |
| 21 | BARCLAYS PLC | $864K | 169K | ▼−59% Reduced · −248K sh | Q1 2026 | |
| 22 | BANK OF AMERICA CORP /DE/ | $833K | 163K | ▼−48% Reduced · −153K sh | Q1 2026 | |
| 23 | Sigma Planning Corp | $830K | 163K | ▲+2.1% Added · +3K sh | Q1 2026 | |
| 24 | Swiss National Bank | $758K | 149K | —Held | Q1 2026 | |
| 25 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $726K | 142K | ▼−8.7% Reduced · −14K 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.
Last quarter, 6 funds opened a new position in RUM and 13 added to an existing one, while 13 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 80 funds | $131.7B |
| META PLATFORMS INC-CLASS AMETA | 80 funds | $54.8B |
| APPLE INCAAPL | 79 funds | $148.4B |
| ALPHABET INC-CL AGOOGL | 79 funds | $66.9B |
| NVIDIA CORPNVDA | 78 funds | $198.6B |
| AMAZON.COM INCAMZN | 78 funds | $91.2B |
| ALPHABET INC-CL CGOOG | 78 funds | $66.8B |
| UNITEDHEALTH GROUP INCUNH | 78 funds | $14.0B |
| BANK OF AMERICA CORPBAC | 78 funds | $13.3B |
| ELI LILLY & COLLY | 77 funds | $40.8B |
| JPMORGAN CHASE & COJPM | 77 funds | $26.3B |
| NETFLIX INCNFLX | 77 funds | $24.2B |
Ranked by how many of RUM's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Feb 6, 2026 | Devasini Giancarlo | 10% Owner | Buy (P) | 44K | $243K |
| Feb 5, 2026 | Devasini Giancarlo | 10% Owner | Buy (P) | 539K | $2.9M |
| Feb 3, 2026 | Devasini Giancarlo | 10% Owner | Buy (P) | 194K | $1.1M |
| Nov 21, 2025 | Devasini Giancarlo | 10% Owner | Buy (P) | 270K | $1.5M |
| Nov 20, 2025 | Devasini Giancarlo | 10% Owner | Buy (P) | 440K | $2.4M |
| Nov 19, 2025 | Devasini Giancarlo | 10% Owner | Buy (P) | 353K | $1.9M |
| Feb 7, 2025 | Arsov Robert | Director | Sell (S) | 12.4M | $92.6M |
| Feb 7, 2025 | Hughes Tyler | Chief Operating Officer | Sell (S) | 313K | $2.3M |
| Feb 7, 2025 | Ramolo Claudio | Chief Content Officer | Sell (S) | 1.5M | $10.9M |
| Feb 7, 2025 | Ramolo Claudio | Chief Content Officer | Sell (S) | 4.8M | $36.1M |
| Feb 7, 2025 | Hlibowicki Wojciech | Chief Technology Officer | Sell (S) | 3.8M | $28.6M |
| Feb 7, 2025 | Hlibowicki Wojciech | Chief Technology Officer | Sell (S) | 3.1M | $23.2M |
| Class | 13F holders | Value held |
|---|---|---|
| RUMthis pagecs | 174 funds | $234.0M |
| RUMBW*W EXP 09/16/202 | 10 funds | $7.5M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for RUM
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/RUM/capital-change-brief"
Use Arkolith's capital_change_brief for RUM. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for RUM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.