| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $451.3M | 15.5M | ▲+0.6% Added · +96K sh | Q1 2026 | |
| 2 | DIMENSIONAL FUND ADVISORS LP | $196.1M | 6.7M | ▲~0% Added · +2K sh | Q1 2026 | |
| 3 | BANK OF MONTREAL /CAN/ | $187.0M | 6.4M | ▼−13% Reduced · −977K sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $177.5M | 6.1M | ▲New +6.1M sh | Q1 2026 | |
| 5 | HAWK RIDGE CAPITAL MANAGEMENT LP | $144.8M | 5.0M | ▲+72% Added · +2.1M sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $139.3M | 4.8M | ▲New +4.8M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $118.9M | 4.1M | ▼−4.8% Reduced · −207K sh | Q1 2026 | |
| 8 | Neuberger Berman Group LLC | $102.4M | 3.5M | ▲+1.0% Added · +35K sh | Q1 2026 | |
| 9 | AMERICAN CENTURY COMPANIES INC | $76.7M | 2.6M | ▼−16% Reduced · −491K sh | Q1 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $75.1M | 2.6M | ▼−3.1% Reduced · −83K sh | Q1 2026 | |
| 11 | BROWN ADVISORY INC | $63.2M | 2.2M | ▼−28% Reduced · −849K sh | Q1 2026 | |
| 12 | MORGAN STANLEY | $54.7M | 1.9M | ▲+9.4% Added · +161K sh | Q1 2026 | |
| 13 | Woodline Partners LP | $52.7M | 1.8M | ▲+77% Added · +788K sh | Q1 2026 | |
| 14 | FMR LLC | $47.1M | 1.6M | ▼−34% Reduced · −842K sh | Q1 2026 | |
| 15 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $43.7M | 1.5M | ▼−1.6% Reduced · −24K sh | Q1 2026 | |
| 16 | NORTHERN TRUST CORP | $43.2M | 1.5M | ▲+6.7% Added · +93K sh | Q1 2026 | |
| 17 | No Street GP LP | $39.4M | 1.4M | ▲+59% Added · +499K sh | Q1 2026 | |
| 18 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $36.5M | 1.3M | ▲+7.5% Added · +87K sh | Q1 2026 | |
| 19 | Park West Asset Management LLC | $36.3M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 20 | Marathon Asset Management Ltd | $32.2M | 1.1M | ▲+13% Added · +131K sh | Q1 2026 | |
| 21 | Mawer Investment Management Ltd. | $31.6M | 1.1M | ▲+191% Added · +712K sh | Q1 2026 | |
| 22 | TWO SIGMA INVESTMENTS, LP | $25.7M | 881K | ▲+84% Added · +403K sh | Q1 2026 | |
| 23 | LONE PEAK GLOBAL INVESTORS LLC | $25.0M | 857K | ▲+40% Added · +244K sh | Q1 2026 | |
| 24 | SILVERCREST ASSET MANAGEMENT GROUP LLC | $24.2M | 830K | ▲New +830K sh | Q1 2026 | |
| 25 | PUBLIC SECTOR PENSION INVESTMENT BOARD | $24.2M | 829K | ▲+11% Added · +80K 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.
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 97 funds | $44.9B |
| META PLATFORMS INC-CLASS AMETA | 97 funds | $21.1B |
| AMAZON.COM INCAMZN | 95 funds | $34.4B |
| ALPHABET INC-CL AGOOGL | 95 funds | $29.6B |
| ELI LILLY & COLLY | 95 funds | $12.8B |
| NVIDIA CORPNVDA | 94 funds | $65.0B |
| BROADCOM INCAVGO | 94 funds | $24.4B |
| VISA INC-CLASS A SHARESV | 94 funds | $9.2B |
| MASTERCARD INC - AMA | 94 funds | $8.6B |
| MICRON TECHNOLOGY INCMU | 93 funds | $8.5B |
| BOSTON SCIENTIFIC CORPBSX | 93 funds | $2.7B |
| LAM RESEARCH CORPLRCX | 92 funds | $5.8B |
Ranked by how many of OPLN's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
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/OPLN/capital-change-brief"
Use Arkolith's capital_change_brief for OPLN. 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 OPLN. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.