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 ONCH 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/ONCH"
Use Arkolith to show who owns ONCH, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Jain Global LLC | $9.0M | 891K | ▼−0.1% Reduced · −1K sh | Q1 2026 | |
| 2 | J. Goldman & Co LP | $7.1M | 700K | ▼−19% Reduced · −163K sh | Q1 2026 | |
| 3 | Verition Fund Management LLC | $3.5M | 345K | ▲+18% Added · +52K sh | Q1 2026 | |
| 4 | First Trust Capital Management L.P. | $3.0M | 300K | —Held | Q1 2026 | |
| 5 | WHITEBOX ADVISORS LLC | $2.6M | 260K | —Held | Q1 2026 | |
| 6 | Context Capital Management, LLC | $2.5M | 250K | —Held | Q1 2026 | |
| 7 | TENOR CAPITAL MANAGEMENT Co., L.P. | $2.5M | 250K | —Held | Q1 2026 | |
| 8 | MOORE CAPITAL MANAGEMENT, LP | $2.5M | 250K | —Held | Q1 2026 | |
| 9 | HBK INVESTMENTS L P | $2.5M | 249K | —Held | Q1 2026 | |
| 10 | Shaolin Capital Management LLC | $1.6M | 159K | ▼−21% Reduced · −41K sh | Q1 2026 | |
| 11 | PICTON MAHONEY ASSET MANAGEMENT | $1.0M | 100K | —Held | Q1 2026 | |
| 12 | Magnetar Financial LLC | $1.0M | 100K | —Held | Q1 2026 | |
| 13 | ARISTEIA CAPITAL, L.L.C. | $1.0M | 100K | —Held | Q1 2026 | |
| 14 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $893K | 88K | —Held | Q1 2026 | |
| 15 | AQR Arbitrage LLC | $742K | 73K | ▼−3.7% Reduced · −3K sh | Q1 2026 | |
| 16 | Centiva Capital, LP | $608K | 60K | ▲+500% Added · +50K sh | Q1 2026 | |
| 17 | READYSTATE ASSET MANAGEMENT LP | $507K | 50K | ▲New +50K sh | Q1 2026 | |
| 18 | BOOTHBAY FUND MANAGEMENT, LLC | $467K | 46K | —Held | Q1 2026 | |
| 19 | Clear Street Group Inc. | $396K | 39K | ▼−40% Reduced · −26K sh | Q1 2026 | |
| 20 | Hudson Bay Capital Management LP | $254K | 25K | —Held | Q1 2026 | |
| 21 | Alberta Investment Management Corp | $254K | 25K | —Held | Q1 2026 | |
| 22 | DAVIDSON KEMPNER CAPITAL MANAGEMENT LP | $254K | 25K | —Held | Q1 2026 | |
| 23 | Schonfeld Strategic Advisors LLC | $203K | 20K | ▲New +20K sh | Q1 2026 | |
| 24 | CITADEL ADVISORS LLC | $108K | 11K | ▲New +11K sh | Q1 2026 | |
| 25 | TIG Advisors, LLC | $102K | 10K | —Held | 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 1, 2025 | Tapiero Daniel M. | Chief Executive Officer, Director, 10% Owner | Buy (P) | 1.5M | $3.0M |
| Jul 1, 2025 | 1RT Acquisition Sponsor LLC | 10% Owner | Buy (P) | 1.5M | $3.0M |
| Company | Co-held by | Combined value |
|---|---|---|
| CANTOR EQUITY PARTNERS-CL ACEPF | 25 funds | $116.7M |
| CANTOR EQUITY PARTNERS-CL ACEPV | 24 funds | $71.9M |
| TRAILBLAZER ACQUISITION-CL ABLZR | 23 funds | $75.2M |
| CANTOR EQUITY PARTNERS III-ACAEP | 23 funds | $69.8M |
| FUTURECREST ACQUISITION-CL AFCRS | 23 funds | $58.4M |
| M3-BRIGADE ACQUISITION-CL AMBVI | 22 funds | $109.8M |
| PROCAP ACQUISITION CORP - APCAP | 22 funds | $92.2M |
| EQV VENTURES ACQUISITION C-AEVAC | 21 funds | $149.3M |
| HIGHVIEW MERGER CORP-CL AHVMC | 21 funds | $89.5M |
| CAL REDWOOD ACQUISIT-CL ACRAQ | 21 funds | $83.5M |
| D. BORAL ARC ACQUISIT - CL ABCAR | 21 funds | $64.1M |
| COHEN CIRCLE ACQUISIT II - ACCII | 21 funds | $53.7M |
Ranked by how many of ONCH'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 ONCH. 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.