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 OPTT 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/OPTT"
Use Arkolith to show who owns OPTT, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | $3.0M | 8.6M | ▲New +8.6M sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $2.1M | 6.9M | —Held | Q4 2025 | |
| 3 | UBS Group AG | $1.4M | 4.0M | ▲+134% Added · +2.3M sh | Q1 2026 | |
| 4 | BlackRock, Inc. | $1.2M | 3.3M | ▲+18% Added · +511K sh | Q1 2026 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $755K | 2.2M | ▲+15% Added · +287K sh | Q1 2026 | |
| 6 | VANGUARD FIDUCIARY TRUST CO | $362K | 1.0M | ▲New +1.0M sh | Q1 2026 | |
| 7 | STATE STREET CORP | $284K | 810K | ▲+3.0% Added · +24K sh | Q1 2026 | |
| 8 | ROYAL BANK OF CANADA | $247K | 706K | ▲14k× Added · +705K sh | Q1 2026 | |
| 9 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $126K | 361K | ▼−30% Reduced · −157K sh | Q1 2026 | |
| 10 | NORTHERN TRUST CORP | $122K | 349K | —Held | Q1 2026 | |
| 11 | PEAK6 LLC | $112K | 320K | ▲New +320K sh | Q1 2026 | |
| 12 | OneDigital Investment Advisors LLC | $64K | 182K | ▲New +182K sh | Q1 2026 | |
| 13 | MONETA GROUP INVESTMENT ADVISORS LLC | $55K | 158K | ▲New +158K sh | Q1 2026 | |
| 14 | SIMPLEX TRADING, LLC | $53K | 152K | ▼−16% Reduced · −29K sh | Q1 2026 | |
| 15 | GROUP ONE TRADING LLC | $49K | 141K | ▼−62% Reduced · −229K sh | Q1 2026 | |
| 16 | Pinnacle Financial Partners, Inc. | $35K | 101K | ▲+99% Added · +50K sh | Q1 2026 | |
| 17 | Private Advisor Group, LLC | $35K | 100K | ▲New +100K sh | Q1 2026 | |
| 18 | OSAIC HOLDINGS, INC. | $32K | 90K | ▲+29% Added · +20K sh | Q1 2026 | |
| 19 | Advisory Services Network, LLC | $23K | 65K | —Held | Q1 2026 | |
| 20 | DIVERSIFY WEALTH MANAGEMENT, LLC | $21K | 60K | ▲New +60K sh | Q1 2026 | |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $18K | 50K | —Held | Q1 2026 | |
| 22 | JANE STREET GROUP, LLC | $15K | 43K | ▼−94% Reduced · −664K sh | Q1 2026 | |
| 23 | IMC-Chicago, LLC | $12K | 34K | ▲New +34K sh | Q1 2026 | |
| 24 | Rockefeller Capital Management L.P. | $11K | 30K | ▲New +30K sh | Q1 2026 | |
| 25 | SBI Securities Co., Ltd. | $9K | 25K | ▲+50% Added · +8K 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 5, 2026 | Powers Robert Patrick | Senior VP and CFO | Tax withholding (F) | 438K | $188K |
| Mar 5, 2026 | Stratmann Philipp | President and CEO, Director | Tax withholding (F) | 901K | $387K |
| Mar 5, 2026 | PAGLIARA TRACY D | Senior VP and General Counsel | Tax withholding (F) | 323K | $139K |
| Jan 30, 2026 | Powers Robert Patrick | CFO | Option exercise (M) | 54K | $0 |
| Jan 30, 2026 | PAGLIARA TRACY D | Senior VP and General Counsel | Grant (A) | 201K | — |
| Jan 30, 2026 | PAGLIARA TRACY D | Senior VP and General Counsel | Grant (A) | 201K | $0 |
| Jan 30, 2026 | Stratmann Philipp | President and CEO, Director | Grant (A) | 100K | — |
| Jan 30, 2026 | Stratmann Philipp | President and CEO, Director | Grant (A) | 393K | — |
| Jan 30, 2026 | Stratmann Philipp | President and CEO, Director | Grant (A) | 100K | — |
| Jan 30, 2026 | Stratmann Philipp | President and CEO, Director | Option exercise (M) | 100K | $0 |
| Jan 30, 2026 | Stratmann Philipp | President and CEO, Director | Option exercise (M) | 393K | $0 |
| Jan 30, 2026 | Powers Robert Patrick | CFO | Grant (A) | 54K | — |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 20 funds | $4.7B |
| BROADCOM INCAVGO | 20 funds | $2.4B |
| JPMORGAN CHASE & COJPM | 20 funds | $2.4B |
| META PLATFORMS INC-CLASS AMETA | 20 funds | $2.3B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 20 funds | $1.6B |
| SPDR GOLD SHARESGLD | 20 funds | $1.5B |
| VISA INC-CLASS A SHARESV | 20 funds | $1.4B |
| JOHNSON & JOHNSONJNJ | 20 funds | $1.3B |
| COSTCO WHOLESALE CORPCOST | 20 funds | $1.3B |
| ELI LILLY & COLLY | 20 funds | $1.1B |
| TESLA INCTSLA | 20 funds | $1.1B |
| HOME DEPOT INCHD | 20 funds | $972.5M |
Ranked by how many of OPTT'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 OPTT. 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.