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 JACS 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/JACS"
Use Arkolith to show who owns JACS, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Hudson Bay Capital Management LP | $16.1M | 1.5M | ▲+2.2% Added · +32K sh | Q1 2026 | |
| 2 | Westchester Capital Management, LLC | $12.6M | 1.2M | —Held | Q1 2026 | |
| 3 | AQR Arbitrage LLC | $12.3M | 1.2M | ▼−4.5% Reduced · −54K sh | Q1 2026 | |
| 4 | Polar Asset Management Partners Inc. | $10.8M | 1.0M | —Held | Q1 2026 | |
| 5 | TENOR CAPITAL MANAGEMENT Co., L.P. | $6.4M | 600K | —Held | Q1 2026 | |
| 6 | Magnetar Financial LLC | $6.3M | 600K | —Held | Q1 2026 | |
| 7 | First Trust Capital Management L.P. | $6.0M | 563K | ▼−0.9% Reduced · −5K sh | Q1 2026 | |
| 8 | LMR Partners LLP | $4.7M | 444K | —Held | Q1 2026 | |
| 9 | PICTON MAHONEY ASSET MANAGEMENT | $4.2M | 400K | —Held | Q1 2026 | |
| 10 | Verition Fund Management LLC | $4.0M | 375K | ▲+168% Added · +235K sh | Q1 2026 | |
| 11 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $3.8M | 360K | ▼−10% Reduced · −40K sh | Q1 2026 | |
| 12 | MANGROVE PARTNERS IM, LLC | $3.0M | 280K | —Held | Q1 2026 | |
| 13 | Shaolin Capital Management LLC | $2.6M | 250K | ▼−37% Reduced · −150K sh | Q1 2026 | |
| 14 | WHITEBOX ADVISORS LLC | $1.9M | 175K | —Held | Q1 2026 | |
| 15 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $1.3M | 122K | ▲New +122K sh | Q1 2026 | |
| 16 | READYSTATE ASSET MANAGEMENT LP | $530K | 50K | —Held | Q1 2026 | |
| 17 | CSS LLC/IL | $375K | 35K | ▲New +35K sh | Q1 2026 | |
| 18 | Schonfeld Strategic Advisors LLC | $318K | 30K | —Held | Q1 2026 | |
| 19 | Clear Street Group Inc. | $85K | 8K | —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.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| CAL REDWOOD ACQUISIT-CL ACRAQ | 19 funds | $89.6M |
| D. BORAL ARC ACQUISIT - CL ABCAR | 19 funds | $81.9M |
| CANTOR EQUITY PARTNERS-CL ACEPV | 19 funds | $62.0M |
| SOULPOWER ACQUISITION CO-ASOUL | 18 funds | $110.1M |
| CANTOR EQUITY PARTNERS-CL ACEPF | 18 funds | $86.4M |
| ARMADA ACQUISITION -CLASS AXRPN | 18 funds | $86.1M |
| AXIOM INTELLIGENCE-CL AAXIN | 18 funds | $71.7M |
| CANTOR EQUITY PARTNERS III-ACAEP | 18 funds | $66.7M |
| CENTURION ACQUISITION CORPALF | 17 funds | $146.1M |
| K&F GROWTH ACQUISITION COR-AKFII | 17 funds | $124.9M |
| EQV VENTURES ACQUISITION C-AEVAC | 17 funds | $115.9M |
| ANDRETTI ACQUISITION CORP -APOLE | 17 funds | $106.8M |
Ranked by how many of JACS's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for JACS. 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.