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/OSCR/capital-change-brief"
Use Arkolith's capital_change_brief for OSCR. 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. | $198.5M | 17.3M | ▲+0.3% Added · +54K sh | Q1 2026 | |
| 2 | T. Rowe Price Investment Management, Inc. | Withheld | 11.6M | ▲+26% Added · +2.4M sh | Q1 2026 | |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $123.6M | 10.8M | ▲New +10.8M sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $121.0M | 10.5M | ▲New +10.5M sh | Q1 2026 | |
| 5 | AMERICAN CENTURY COMPANIES INC | $80.6M | 7.0M | ▲+12% Added · +731K sh | Q1 2026 | |
| 6 | BIT Capital GmbH | $72.5M | 6.3M | ▲+2.2% Added · +135K sh | Q1 2026 | |
| 7 | D. E. Shaw & Co., Inc. | $62.9M | 5.5M | ▼−9.9% Reduced · −602K sh | Q1 2026 | |
| 8 | STATE STREET CORP | $60.4M | 5.3M | ▲+1.5% Added · +76K sh | Q1 2026 | |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $57.7M | 5.0M | ▲+4.9% Added · +234K sh | Q1 2026 | |
| 10 | DIMENSIONAL FUND ADVISORS LP | $48.1M | 4.2M | ▲+22% Added · +760K sh | Q1 2026 | |
| 11 | CITADEL ADVISORS LLC | $39.8M | 3.5M | ▲+34% Added · +888K sh | Q1 2026 | |
| 12 | MORGAN STANLEY | $38.5M | 3.4M | ▼−51% Reduced · −3.5M sh | Q1 2026 | |
| 13 | Point72 Asset Management, L.P. | $35.7M | 3.1M | ▲+8.9% Added · +253K sh | Q1 2026 | |
| 14 | JANE STREET GROUP, LLC | $33.3M | 2.9M | ▼−50% Reduced · −2.9M sh | Q1 2026 | |
| 15 | BANK OF AMERICA CORP /DE/ | $32.8M | 2.9M | ▲+205% Added · +1.9M sh | Q1 2026 | |
| 16 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $31.5M | 2.7M | ▲+139% Added · +1.6M sh | Q1 2026 | |
| 17 | JACOBS LEVY EQUITY MANAGEMENT, INC | $28.4M | 2.5M | ▲+133% Added · +1.4M sh | Q1 2026 | |
| 18 | TWO SIGMA INVESTMENTS, LP | $26.9M | 2.3M | ▼−44% Reduced · −1.9M sh | Q1 2026 | |
| 19 | BNP PARIBAS FINANCIAL MARKETS | $22.9M | 2.0M | ▲+174% Added · +1.3M sh | Q1 2026 | |
| 20 | PRICE T ROWE ASSOCIATES INC /MD/ | $22.0M | 1.9M | ▼−31% Reduced · −847K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $21.8M | 1.9M | ▲+8.1% Added · +142K sh | Q1 2026 | |
| 22 | NORTHERN TRUST CORP | $21.5M | 1.9M | ▲+3.9% Added · +70K sh | Q1 2026 | |
| 23 | TUDOR INVESTMENT CORP ET AL | $19.7M | 1.7M | ▲+6.7% Added · +108K sh | Q1 2026 | |
| 24 | Freestone Grove Partners LP | $18.4M | 1.6M | ▲+215% Added · +1.1M sh | Q1 2026 | |
| 25 | UBS Group AG | $18.1M | 1.6M | ▲+28% Added · +341K 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 |
|---|---|---|---|---|---|
| Jul 9, 2026 | Plouffe David | Director | Grant (A) | 681 | $21K |
| Jul 9, 2026 | Gassen William | Director | Grant (A) | 684 | $21K |
| Jul 9, 2026 | Sankaran Sid | Director | Grant (A) | 858 | $27K |
| Jul 1, 2026 | Schlosser Mario | Director | Conversion (C) | 48K | — |
| Jul 1, 2026 | Schlosser Mario | Director | Sell (S) | 4K | $106K |
| Jul 1, 2026 | Schlosser Mario | Director | Sell (S) | 14K | $421K |
| Jul 1, 2026 | Schlosser Mario | Director | Sell (S) | 30K | $957K |
| Jul 1, 2026 | Schlosser Mario | Director | Conversion (C) | 48K | $0 |
| Jun 30, 2026 | Bertolini Mark T | Chief Executive Officer, Director | Sell (S) | 489K | $13.9M |
| Jun 30, 2026 | Bertolini Mark T | Chief Executive Officer, Director | Sell (S) | 136K | $3.9M |
| Jun 29, 2026 | Bertolini Mark T | Chief Executive Officer, Director | Sell (S) | 556K | $16.2M |
| Jun 29, 2026 | Bertolini Mark T | Chief Executive Officer, Director | Sell (S) | 59K | $1.8M |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 106 funds | $52.3B |
| ELI LILLY & COLLY | 106 funds | $13.3B |
| AMAZON.COM INCAMZN | 105 funds | $41.5B |
| META PLATFORMS INC-CLASS AMETA | 105 funds | $24.0B |
| ALPHABET INC-CL AGOOGL | 104 funds | $31.4B |
| TESLA INCTSLA | 104 funds | $16.7B |
| INTUITIVE SURGICAL INCISRG | 104 funds | $4.6B |
| BROADCOM INCAVGO | 103 funds | $27.2B |
| UNITEDHEALTH GROUP INCUNH | 103 funds | $5.3B |
| NVIDIA CORPNVDA | 102 funds | $81.7B |
| MASTERCARD INC - AMA | 102 funds | $9.3B |
| COSTCO WHOLESALE CORPCOST | 102 funds | $7.7B |
Ranked by how many of OSCR'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 OSCR. 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.