The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query BSRR owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/BSRR"
Use Arkolith to show who owns BSRR, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $42.2M | 1.2M | ▼−1.9% Reduced · −25K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $24.0M | 735K | ▲+0.1% Added · +971 sh | Q4 2025 | |
| 3 | PRIVATE MANAGEMENT GROUP INC | $17.8M | 524K | ▼−4.0% Reduced · −22K sh | Q1 2026 | |
| 4 | GEODE CAPITAL MANAGEMENT, LLC | $9.7M | 285K | ▼−0.4% Reduced · −1K sh | Q1 2026 | |
| 5 | STATE STREET CORP | $9.1M | 267K | ▼−4.6% Reduced · −13K sh | Q1 2026 | |
| 6 | FMR LLC | $7.3M | 215K | ▲+5.3% Added · +11K sh | Q1 2026 | |
| 7 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $4.4M | 129K | ▼−2.8% Reduced · −4K sh | Q1 2026 | |
| 8 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $3.6M | 107K | ▼−3.6% Reduced · −4K sh | Q1 2026 | |
| 9 | VANGUARD FIDUCIARY TRUST CO | $2.6M | 77K | ▲New +77K sh | Q1 2026 | |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | $2.4M | 69K | ▲New +69K sh | Q1 2026 | |
| 11 | PANAGORA ASSET MANAGEMENT INC | $1.6M | 48K | ▼−0.3% Reduced · −170 sh | Q1 2026 | |
| 12 | Connor, Clark & Lunn Investment Management Ltd. | $1.2M | 35K | ▲+0.8% Added · +279 sh | Q1 2026 | |
| 13 | Trexquant Investment LP | $983K | 29K | ▲+118% Added · +16K sh | Q1 2026 | |
| 14 | Mutual Advisors, LLC | $711K | 21K | —Held | Q1 2026 | |
| 15 | JACOBS LEVY EQUITY MANAGEMENT, INC | $625K | 18K | ▲+11% Added · +2K sh | Q1 2026 | |
| 16 | MetLife Investment Management, LLC | $273K | 8K | —Held | Q1 2026 | |
| 17 | Gradient Investments LLC | $223K | 7K | —Held | Q1 2026 | |
| 18 | CWM, LLC | $202K | 6K | ▼−0.8% Reduced · −50 sh | Q1 2026 | |
| 19 | OCCUDO QUANTITATIVE STRATEGIES LP | $201K | 6K | ▼−16% Reduced · −1K sh | Q1 2026 | |
| 20 | PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | $124K | 4K | —Held | Q1 2026 | |
| 21 | Police & Firemen's Retirement System of New Jersey | $119K | 4K | —Held | Q1 2026 | |
| 22 | LOS ANGELES CAPITAL MANAGEMENT LLC | $96K | 3K | ▼−45% Reduced · −2K sh | Q1 2026 | |
| 23 | WHITTIER TRUST CO | $40K | 1K | —Held | Q1 2026 | |
| 24 | Ameritas Investment Partners, Inc. | $35K | 1K | ▼−18% Reduced · −225 sh | Q1 2026 | |
| 25 | Sterling Capital Management LLC | $14K | 400 | ▼−43% Reduced · −306 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 1, 2026 | Boyle Hugh F | EVP/Chief Credit Officer | Tax withholding (F) | 2K | $61K |
| Feb 23, 2026 | Treece Christopher G | EVP/Chief Financial Officer | Tax withholding (F) | 800 | $29K |
| Feb 23, 2026 | Olague Michael | EVP/Chief Banking Officer | Tax withholding (F) | 665 | $24K |
| Feb 23, 2026 | Coen Natalia M | EVP/CRO | Tax withholding (F) | 653 | $24K |
| Feb 23, 2026 | McPhaill Kevin J | President/CEO | Tax withholding (F) | 1K | $49K |
| Feb 23, 2026 | Boyle Hugh F | EVP/Chief Credit Officer | Tax withholding (F) | 794 | $29K |
| Feb 17, 2026 | BERRA ALBERT L | Director | Option exercise (M) | 5K | $86K |
| Feb 17, 2026 | BERRA ALBERT L | Director | Option exercise (M) | 5K | $0 |
| Feb 13, 2026 | Castle Julie G | Director | Sell (S) | 250 | $9K |
| Feb 12, 2026 | Boyle Hugh F | EVP/Chief Credit Officer | Grant (A) | 1K | $0 |
| Feb 12, 2026 | Treece Christopher G | EVP/Chief Financial Officer | Grant (A) | 5K | $0 |
| Feb 12, 2026 | Treece Christopher G | EVP/Chief Financial Officer | Grant (A) | 2K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 31 funds | $13.0B |
| US BANCORPUSB | 31 funds | $1.3B |
| NVIDIA CORPNVDA | 30 funds | $20.8B |
| APPLE INCAAPL | 30 funds | $17.3B |
| AMAZON.COM INCAMZN | 30 funds | $9.5B |
| ALPHABET INC-CL AGOOGL | 30 funds | $8.7B |
| ALPHABET INC-CL CGOOG | 30 funds | $7.2B |
| META PLATFORMS INC-CLASS AMETA | 30 funds | $6.2B |
| TESLA INCTSLA | 30 funds | $3.6B |
| ELI LILLY & COLLY | 30 funds | $3.5B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 30 funds | $3.2B |
| COSTCO WHOLESALE CORPCOST | 30 funds | $2.7B |
Ranked by how many of BSRR'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 BSRR. 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.