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/BATRK/capital-change-brief"
Use Arkolith's capital_change_brief for BATRK. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $146.5M | 3.4M | ▼−1.0% Reduced · −34K sh | Q1 2026 | |
| 2 | Broad Bay Capital Management, LP | $116.7M | 2.7M | ▲+24% Added · +531K sh | Q1 2026 | |
| 3 | HAWK RIDGE CAPITAL MANAGEMENT LP | $95.5M | 2.2M | ▼−16% Reduced · −424K sh | Q1 2026 | |
| 4 | ARISTEIA CAPITAL, L.L.C. | $87.7M | 2.1M | —Held | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $85.8M | 2.0M | ▲New +2.0M sh | Q1 2026 | |
| 6 | Troluce Capital Advisors LLC | $85.4M | 2.0M | ▲+275% Added · +1.5M sh | Q1 2026 | |
| 7 | CI INVESTMENTS INC. | $72.6M | 1.7M | ▼~0% Reduced · −33 sh | Q1 2026 | |
| 8 | Sixth Street Partners Management Company, L.P. | $66.3M | 1.6M | ▲+109% Added · +810K sh | Q1 2026 | |
| 9 | T. Rowe Price Investment Management, Inc. | Withheld | 1.5M | ▼−0.9% Reduced · −14K sh | Q1 2026 | |
| 10 | GAMCO INVESTORS, INC. ET AL | $56.9M | 1.3M | ▼−3.5% Reduced · −49K sh | Q1 2026 | |
| 11 | GABELLI FUNDS LLC | $56.0M | 1.3M | ▼−6.0% Reduced · −84K sh | Q1 2026 | |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | $48.2M | 1.1M | ▲+3.9% Added · +42K sh | Q1 2026 | |
| 13 | STATE STREET CORP | $45.8M | 1.1M | ▲+4.3% Added · +44K sh | Q1 2026 | |
| 14 | MILLENNIUM MANAGEMENT LLC | $44.9M | 1.1M | ▲+200% Added · +702K sh | Q1 2026 | |
| 15 | FIL Ltd | $40.1M | 940K | ▲+2.4% Added · +22K sh | Q1 2026 | |
| 16 | DIMENSIONAL FUND ADVISORS LP | $39.9M | 935K | ▲+10% Added · +88K sh | Q1 2026 | |
| 17 | Southpoint Capital Advisors LP | $38.4M | 900K | ▲+29% Added · +200K sh | Q1 2026 | |
| 18 | BREACH INLET CAPITAL MANAGEMENT, LLC | $37.0M | 867K | ▲+13% Added · +101K sh | Q1 2026 | |
| 19 | JANUS HENDERSON GROUP PLC | $35.6M | 835K | ▲+13% Added · +97K sh | Q1 2026 | |
| 20 | Harvey Partners, LLC | $34.4M | 806K | ▲+8.6% Added · +64K sh | Q1 2026 | |
| 21 | Tensile Capital Management LP | $32.2M | 754K | —Held | Q1 2026 | |
| 22 | SOUTHEASTERN ASSET MANAGEMENT INC/TN/ | $28.7M | 671K | —Held | Q1 2026 | |
| 23 | VANGUARD PORTFOLIO MANAGEMENT LLC | $26.1M | 612K | ▲New +612K sh | Q1 2026 | |
| 24 | UBS Group AG | $26.1M | 610K | ▲+9.6% Added · +53K sh | Q1 2026 | |
| 25 | TUDOR INVESTMENT CORP ET AL | $21.8M | 509K | ▲+5.3% Added · +25K 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 |
|---|---|---|---|---|---|
| Feb 25, 2026 | MALONE JOHN C | 10% Owner | Buy (P) | 11K | $630K |
| Feb 25, 2026 | MALONE JOHN C | 10% Owner | Sell (S) | 15K | $630K |
| Feb 13, 2026 | Robinson Jill L. | EVP, CFO & Treasurer | Sell (S) | 60K | $2.5M |
| Feb 13, 2026 | Robinson Jill L. | EVP, CFO & Treasurer | Option exercise (M) | 60K | $1.6M |
| Feb 13, 2026 | Robinson Jill L. | EVP, CFO & Treasurer | Option exercise (M) | 60K | $0 |
| Feb 2, 2026 | Robinson Jill L. | EVP, CFO & Treasurer | Option exercise (M) | 20K | $544K |
| Feb 2, 2026 | Robinson Jill L. | EVP, CFO & Treasurer | Sell (S) | 20K | $800K |
| Feb 2, 2026 | Robinson Jill L. | EVP, CFO & Treasurer | Option exercise (M) | 20K | $0 |
| Dec 12, 2025 | Rhodes DeRetta C. | See remarks | Sell (S) | 826 | $33K |
| Dec 12, 2025 | MCGUIRK TERENCE F | Chairman, President & CEO, Director, 10% Owner | Sell (S) | 7K | $266K |
| Dec 12, 2025 | Schiller Derek Gordon | EVP, Business | Sell (S) | 5K | $194K |
| Dec 12, 2025 | Robinson Jill L. | EVP, CFO & Treasurer | Sell (S) | 4K | $152K |
| Class | 13F holders | Value held |
|---|---|---|
| BATRKthis pagecs | 217 funds | $1.8B |
| BATRAcs | 141 funds | $339.1M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 77 funds | $39.3B |
| ALPHABET INC-CL AGOOGL | 77 funds | $34.6B |
| AMAZON.COM INCAMZN | 77 funds | $22.9B |
| VISA INC-CLASS A SHARESV | 77 funds | $6.6B |
| APPLE INCAAPL | 76 funds | $92.6B |
| MICROSOFT CORPMSFT | 75 funds | $30.6B |
| META PLATFORMS INC-CLASS AMETA | 75 funds | $12.4B |
| GENERAL ELECTRICGE | 75 funds | $3.0B |
| HONEYWELL INTERNATIONAL INCHON | 75 funds | $1.9B |
| AMERICAN EXPRESS COAXP | 74 funds | $48.0B |
| BROADCOM INCAVGO | 74 funds | $14.6B |
| NETFLIX INCNFLX | 74 funds | $4.1B |
Ranked by how many of BATRK'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 BATRK. 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.