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 HDRNW 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/HDRNW"
Use Arkolith to show who owns HDRNW, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | ARISTEIA CAPITAL, L.L.C. | $586K | 1.8M | —Held | Q1 2026 | |
| 2 | AQR Arbitrage LLC | $585K | 1.8M | —Held | Q1 2026 | |
| 3 | Calamos Advisors LLC | $305K | 925K | —Held | Q1 2026 | |
| 4 | WHITEBOX ADVISORS LLC | $256K | 805K | —Held | Q1 2026 | |
| 5 | BOOTHBAY FUND MANAGEMENT, LLC | $236K | 22K | ▼−37% Reduced · −13K sh | Q1 2026 | |
| 6 | CITADEL ADVISORS LLC | $111K | 335K | ▼−0.4% Reduced · −1K sh | Q1 2026 | |
| 7 | Verition Fund Management LLC | $81K | 244K | —Held | Q1 2026 | |
| 8 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $75K | 236K | —Held | Q1 2026 | |
| 9 | Clear Street Group Inc. | $68K | 213K | ▼−15% Reduced · −37K sh | Q1 2026 | |
| 10 | HIGHBRIDGE CAPITAL MANAGEMENT LLC | $31K | 93K | ▼−29% Reduced · −38K sh | Q1 2026 | |
| 11 | Shaolin Capital Management LLC | $18K | 55K | ▼−27% Reduced · −20K 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.
| Class | 13F holders | Value held |
|---|---|---|
| HDRNORD SHS CL A | 27 funds | $141.0M |
| HDRNWthis pageWarrant | 19 funds | $3.4M |
| GIGGUUNIT 99/99/9999 | 2 funds | $141K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
| Company | Co-held by | Combined value |
|---|---|---|
| VINE HILL CAPITAL INVESTMENTVHCPU | 11 funds | $2.3M |
| M3-BRIGADE ACQUISITION-CL AMBVI | 10 funds | $49.4M |
| D. BORAL ARC ACQUISIT - CL ABCAR | 10 funds | $47.4M |
| HCM IV ACQUISITION CORPHACQU | 10 funds | $46.6M |
| CANTOR EQUITY PARTNERS-CL ACEPF | 10 funds | $41.4M |
| ANDRETTI ACQUISITION CORP -APOLE | 10 funds | $36.6M |
| COLLECTIVE ACQUISITION CORPCCAQ | 10 funds | $32.1M |
| ARMADA ACQUISITION -CLASS AXRPN | 10 funds | $28.1M |
| KEEN VISION ACQUISITION C-28KVACW | 10 funds | $4.5M |
| CRANE HARBOR ACQUISITION CORCRANU | 10 funds | $2.1M |
| LEAPFROG ACQUISITION CORPLFACU | 10 funds | $2.1M |
| ACTIVATE ENERGY ACQUISITIONAEAQU | 10 funds | $2.0M |
Ranked by how many of HDRNW'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 HDRNW. 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.