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/LBRDA/capital-change-brief"
Use Arkolith's capital_change_brief for LBRDA. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | ARISTEIA CAPITAL, L.L.C. | $63.3M | 1.3M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $51.3M | 1.0M | ▲+2.2% Added · +22K sh | Q1 2026 | |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | $39.8M | 793K | ▲New +793K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $37.5M | 747K | ▲New +747K sh | Q1 2026 | |
| 5 | ALLIANCEBERNSTEIN L.P. | $32.9M | 681K | ▲+100% Added · +341K sh | Q1 2026 | |
| 6 | JNE Partners LLP | $31.9M | 635K | —Held | Q1 2026 | |
| 7 | MILLENNIUM MANAGEMENT LLC | $31.8M | 633K | ▲+0.5% Added · +3K sh | Q1 2026 | |
| 8 | Empyrean Capital Partners, LP | $25.1M | 500K | —Held | Q1 2026 | |
| 9 | Verition Fund Management LLC | $24.6M | 489K | ▲+21% Added · +85K sh | Q1 2026 | |
| 10 | MORGAN STANLEY | $23.0M | 457K | ▲+45% Added · +141K sh | Q1 2026 | |
| 11 | Squarepoint Ops LLC | $22.1M | 440K | ▲+12% Added · +47K sh | Q1 2026 | |
| 12 | D. E. Shaw & Co., Inc. | $21.2M | 421K | ▼−3.7% Reduced · −16K sh | Q1 2026 | |
| 13 | Slotnik Capital, LLC | $21.1M | 421K | ▲+60% Added · +157K sh | Q1 2026 | |
| 14 | Long Focus Capital Management, LLC | $18.8M | 375K | —Held | Q1 2026 | |
| 15 | CITIGROUP INC | $17.9M | 356K | ▲+3.0% Added · +11K sh | Q1 2026 | |
| 16 | DIMENSIONAL FUND ADVISORS LP | $17.8M | 354K | ▼−15% Reduced · −63K sh | Q1 2026 | |
| 17 | WHITEBOX ADVISORS LLC | $17.5M | 348K | —Held | Q1 2026 | |
| 18 | GEODE CAPITAL MANAGEMENT, LLC | $16.0M | 318K | ▲+2.0% Added · +6K sh | Q1 2026 | |
| 19 | STATE STREET CORP | $15.2M | 302K | ▲+7.8% Added · +22K sh | Q1 2026 | |
| 20 | EAGLE CAPITAL MANAGEMENT LLC | $13.6M | 271K | ▼−1.1% Reduced · −3K sh | Q1 2026 | |
| 21 | Qube Research & Technologies Ltd | $12.4M | 247K | ▲14× Added · +230K sh | Q1 2026 | |
| 22 | UBS Group AG | $12.2M | 244K | ▲+9.4% Added · +21K sh | Q1 2026 | |
| 23 | Ruane, Cunniff & Goldfarb L.P. | $11.2M | 224K | ▼−66% Reduced · −429K sh | Q1 2026 | |
| 24 | NORGES BANK | $10.4M | 216K | —Held | Q4 2025 | |
| 25 | Alpine Global Management, LLC | $9.8M | 195K | ▲+95% Added · +95K 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 |
|---|---|---|---|---|---|
| Mar 15, 2025 | Wilm Renee L | Chief Legal/Admin Officer | Tax withholding (F) | 3K | $264K |
| Mar 15, 2025 | Wendling Brian J | CAO/PFO | Tax withholding (F) | 2K | $140K |
| Mar 5, 2025 | Wilm Renee L | Chief Legal/Admin Officer | Grant (A) | 7K | $0 |
| Mar 5, 2025 | Wendling Brian J | CAO/PFO | Grant (A) | 4K | $0 |
| Dec 19, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 8K | $596K |
| Dec 19, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 29K | $2.2M |
| Dec 18, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 1K | $84K |
| Dec 18, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 14K | $1.1M |
| Dec 18, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 27K | $2.1M |
| Dec 18, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 82K | $6.6M |
| Dec 17, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 119K | $9.6M |
| Dec 17, 2024 | MAFFEI GREGORY B | President/CEO, Director, 10% Owner | Sell (S) | 1K | $95K |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 55 funds | $29.1B |
| ALPHABET INC-CL AGOOGL | 55 funds | $17.8B |
| UNITEDHEALTH GROUP INCUNH | 55 funds | $4.0B |
| CAPITAL ONE FINANCIAL CORPCOF | 55 funds | $2.7B |
| AMAZON.COM INCAMZN | 54 funds | $23.3B |
| ALPHABET INC-CL CGOOG | 54 funds | $16.0B |
| META PLATFORMS INC-CLASS AMETA | 54 funds | $11.3B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 54 funds | $7.4B |
| S&P GLOBAL INCSPGI | 54 funds | $2.3B |
| APPLE INCAAPL | 53 funds | $32.9B |
| VISA INC-CLASS A SHARESV | 53 funds | $6.1B |
| NETFLIX INCNFLX | 53 funds | $3.5B |
Ranked by how many of LBRDA'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 LBRDA. 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.