45 tracked 13F filers disclose a position in ONCH as of the latest SEC 13F filings, a combined $97.1M in reported value. 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.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | METEORA CAPITAL, LLC | $17.3M | 1.7M | ▲+11% Added · +166K sh | Q1 2026 | |
| 2 | LINDEN ADVISORS LP | $10.2M | 1.0M | ▲+98% Added · +500K sh | Q1 2026 | |
| 3 | Jain Global LLC | $9.0M | 891K | ▼−0.1% Reduced · −1K sh | Q1 2026 | |
| 4 | Governors Lane LP | $7.6M | 750K | ▲+43% Added · +227K sh | Q1 2026 | |
| 5 | J. Goldman & Co LP | $7.1M | 700K | ▼−19% Reduced · −163K sh | Q1 2026 | |
| 6 | Radcliffe Capital Management, L.P. | $3.9M | 385K | ▲+177% Added · +246K sh | Q1 2026 | |
| 7 | Verition Fund Management LLC | $3.5M | 345K | ▲+18% Added · +52K sh | Q1 2026 | |
| 8 | First Trust Capital Management L.P. | $3.0M | 300K | —Held | Q1 2026 | |
| 9 | MILLENNIUM MANAGEMENT LLC | $3.0M | 293K | ▲+12% Added · +31K sh | Q1 2026 | |
| 10 | WHITEBOX ADVISORS LLC | $2.6M | 260K | —Held | Q1 2026 | |
| 11 | Context Capital Management, LLC | $2.6M | 250K | —Held | Q2 2026 | |
| 12 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $2.5M | 250K | —Held | Q1 2026 | |
| 13 | TENOR CAPITAL MANAGEMENT Co., L.P. | $2.5M | 250K | —Held | Q1 2026 | |
| 14 | MOORE CAPITAL MANAGEMENT, LP | $2.5M | 250K | —Held | Q1 2026 | |
| 15 | HBK INVESTMENTS L P | $2.5M | 249K | —Held | Q1 2026 | |
| 16 | Shaolin Capital Management LLC | $1.6M | 159K | ▼−21% Reduced · −41K sh | Q1 2026 | |
| 17 | TWO SIGMA INVESTMENTS, LP | $1.5M | 151K | —Held | Q1 2026 | |
| 18 | Cable Car Capital, LP | $1.3M | 125K | —Held | Q1 2026 | |
| 19 | OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AM | $1.0M | 100K | —Held | Q4 2025 | |
| 20 | PICTON MAHONEY ASSET MANAGEMENT | $1.0M | 100K | —Held | Q1 2026 | |
| 21 | Magnetar Financial LLC | $1.0M | 100K | —Held | Q1 2026 | |
| 22 | ARISTEIA CAPITAL, L.L.C. | $1.0M | 100K | —Held | Q1 2026 | |
| 23 | O'Connor Alternative Investments LLC | $1.0M | 100K | ▲New +100K sh | Q1 2026 | |
| 24 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $893K | 88K | —Held | Q1 2026 | |
| 25 | BERKLEY W R CORP | $755K | 74K | —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.
Last quarter, 4 funds opened a new position in ONCH and 7 added to an existing one, while 4 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| 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.
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/ONCH/capital-change-brief"
Use Arkolith's capital_change_brief for ONCH. 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 ONCH. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.