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 ATII 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/ATII"
Use Arkolith to show who owns ATII, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | TENOR CAPITAL MANAGEMENT Co., L.P. | $15.6M | 1.5M | —Held | Q1 2026 | |
| 2 | Magnetar Financial LLC | $13.6M | 1.3M | —Held | Q1 2026 | |
| 3 | AQR Arbitrage LLC | $9.6M | 921K | ▼−4.5% Reduced · −44K sh | Q1 2026 | |
| 4 | Westchester Capital Management, LLC | $9.4M | 907K | —Held | Q1 2026 | |
| 5 | LMR Partners LLP | $8.8M | 850K | —Held | Q1 2026 | |
| 6 | Ghisallo Capital Management LLC | $8.3M | 800K | —Held | Q1 2026 | |
| 7 | Alberta Investment Management Corp | $7.8M | 750K | —Held | Q1 2026 | |
| 8 | Hudson Bay Capital Management LP | $7.3M | 700K | —Held | Q1 2026 | |
| 9 | Jain Global LLC | $5.2M | 500K | —Held | Q1 2026 | |
| 10 | PICTON MAHONEY ASSET MANAGEMENT | $5.2M | 500K | —Held | Q1 2026 | |
| 11 | MOORE CAPITAL MANAGEMENT, LP | $4.7M | 450K | —Held | Q1 2026 | |
| 12 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $4.5M | 428K | ▼−4.5% Reduced · −20K sh | Q1 2026 | |
| 13 | J. Goldman & Co LP | $3.8M | 370K | ▲New +370K sh | Q1 2026 | |
| 14 | Centiva Capital, LP | $3.0M | 286K | —Held | Q1 2026 | |
| 15 | Shaolin Capital Management LLC | $2.8M | 271K | —Held | Q1 2026 | |
| 16 | WHITEBOX ADVISORS LLC | $2.6M | 250K | —Held | Q1 2026 | |
| 17 | ARISTEIA CAPITAL, L.L.C. | $2.6M | 250K | —Held | Q1 2026 | |
| 18 | Verition Fund Management LLC | $2.4M | 231K | —Held | Q1 2026 | |
| 19 | Schonfeld Strategic Advisors LLC | $1.8M | 174K | —Held | Q1 2026 | |
| 20 | READYSTATE ASSET MANAGEMENT LP | $1.6M | 149K | ▲+0.8% Added · +1K sh | Q1 2026 | |
| 21 | Clear Street Group Inc. | $806K | 77K | ▲18× Added · +73K sh | Q1 2026 | |
| 22 | CSS LLC/IL | $595K | 57K | —Held | Q1 2026 | |
| 23 | CITADEL ADVISORS LLC | $108K | 10K | ▲New +10K 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.
No Form 4 insider transactions on file yet.
| Company | Co-held by | Combined value |
|---|---|---|
| WEN ACQUISITION CORP-AWENN | 23 funds | $93.7M |
| PROCAP ACQUISITION CORP - APCAP | 23 funds | $92.3M |
| CANTOR EQUITY PARTNERS-CL ACEPF | 22 funds | $103.5M |
| CANTOR EQUITY PARTNERS-CL ACEPV | 22 funds | $69.7M |
| CAL REDWOOD ACQUISIT-CL ACRAQ | 21 funds | $92.2M |
| TRAILBLAZER ACQUISITION-CL ABLZR | 21 funds | $75.2M |
| D. BORAL ARC ACQUISIT - CL ABCAR | 21 funds | $68.8M |
| CANTOR EQUITY PARTNERS III-ACAEP | 21 funds | $61.1M |
| NEW PROVIDENCE ACQUISITION-ANPAC | 20 funds | $153.0M |
| ALDEL FINANCIAL II INCALDF | 20 funds | $120.7M |
| BLUE WATER ACQUISITION C-ABLUW | 20 funds | $97.5M |
| COHEN CIRCLE ACQUISIT II - ACCII | 20 funds | $54.0M |
Ranked by how many of ATII'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 ATII. 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.