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 GSRF 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/GSRF"
Use Arkolith to show who owns GSRF, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Magnetar Financial LLC | $12.5M | 1.2M | ▲New +1.2M sh | Q1 2026 | |
| 2 | Polar Asset Management Partners Inc. | $12.0M | 1.2M | —Held | Q1 2026 | |
| 3 | Hudson Bay Capital Management LP | $11.7M | 1.2M | ▲+29% Added · +263K sh | Q1 2026 | |
| 4 | Centiva Capital, LP | $10.5M | 1.0M | ▲+76% Added · +450K sh | Q1 2026 | |
| 5 | Westchester Capital Management, LLC | $9.0M | 900K | ▲New +900K sh | Q1 2026 | |
| 6 | AQR Arbitrage LLC | $9.0M | 899K | ▼−3.8% Reduced · −35K sh | Q1 2026 | |
| 7 | ARISTEIA CAPITAL, L.L.C. | $8.8M | 875K | —Held | Q1 2026 | |
| 8 | Shaolin Capital Management LLC | $7.2M | 719K | ▼−0.8% Reduced · −6K sh | Q1 2026 | |
| 9 | PICTON MAHONEY ASSET MANAGEMENT | $6.5M | 650K | —Held | Q1 2026 | |
| 10 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $4.8M | 475K | ▲New +475K sh | Q1 2026 | |
| 11 | Context Capital Management, LLC | $4.0M | 400K | —Held | Q1 2026 | |
| 12 | First Trust Capital Management L.P. | $3.5M | 353K | ▼−63% Reduced · −593K sh | Q1 2026 | |
| 13 | Clear Street Group Inc. | $2.2M | 220K | ▲+13% Added · +25K sh | Q1 2026 | |
| 14 | Schonfeld Strategic Advisors LLC | $1.2M | 120K | ▲New +120K sh | Q1 2026 | |
| 15 | CITADEL ADVISORS LLC | $111K | 11K | ▲New +11K 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 |
|---|---|---|---|---|---|
| Sep 5, 2025 | Garcia Gus | CO-CHIEF EXECUTIVE OFFICER, Director, 10% Owner | Buy (P) | 558K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| D. BORAL ARC ACQUISIT - CL ABCAR | 17 funds | $50.9M |
| APEX TREASURY CORP-CL AAPXT | 16 funds | $80.3M |
| M3-BRIGADE ACQUISITION-CL AMBVI | 16 funds | $77.7M |
| COLLECTIVE ACQUISITION CORPCCAQ | 16 funds | $64.3M |
| SIDDHI ACQUISITION CORP-ASDHI | 15 funds | $119.0M |
| IDEA ACQUISITION CORPIACOU | 15 funds | $97.1M |
| MOZAYYX ACQUISITION CORPMZYX/U | 15 funds | $80.3M |
| CRANE HARBOR ACQUISITIO-CL ACRAN | 15 funds | $74.0M |
| CAL REDWOOD ACQUISIT-CL ACRAQ | 15 funds | $63.8M |
| CSLM DIGITAL ASSET ACQU - AKOYN | 15 funds | $62.6M |
| HIGHVIEW MERGER CORP-CL AHVMC | 15 funds | $60.7M |
| BLUE WATER ACQUISITION C-ABLUW | 15 funds | $60.4M |
Ranked by how many of GSRF'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 GSRF. 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.