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 SIMA 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/SIMA"
Use Arkolith to show who owns SIMA, 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 | $20.8M | 1.9M | —Held | Q1 2026 | |
| 2 | Karpus Management, Inc. | $18.5M | 1.7M | ▼−0.6% Reduced · −10K sh | Q1 2026 | |
| 3 | AQR Arbitrage LLC | $15.6M | 1.5M | ▼~0% Reduced · −283 sh | Q1 2026 | |
| 4 | PICTON MAHONEY ASSET MANAGEMENT | $13.9M | 1.3M | ▼−28% Reduced · −500K sh | Q1 2026 | |
| 5 | First Trust Capital Management L.P. | $13.9M | 1.3M | ▼−28% Reduced · −506K sh | Q1 2026 | |
| 6 | LMR Partners LLP | $10.5M | 980K | —Held | Q1 2026 | |
| 7 | Westchester Capital Management, LLC | $8.3M | 770K | ▼−39% Reduced · −500K sh | Q1 2026 | |
| 8 | Alberta Investment Management Corp | $8.0M | 750K | —Held | Q1 2026 | |
| 9 | Hudson Bay Capital Management LP | $6.4M | 596K | ▼−0.1% Reduced · −928 sh | Q1 2026 | |
| 10 | WHITEBOX ADVISORS LLC | $5.4M | 500K | —Held | Q1 2026 | |
| 11 | RIVERNORTH CAPITAL MANAGEMENT, LLC | $3.8M | 358K | ▼−5.3% Reduced · −20K sh | Q1 2026 | |
| 12 | Context Capital Management, LLC | $2.9M | 270K | —Held | Q1 2026 | |
| 13 | Verition Fund Management LLC | $2.1M | 191K | —Held | Q1 2026 | |
| 14 | Shaolin Capital Management LLC | $1.1M | 100K | ▼−53% Reduced · −113K sh | Q1 2026 | |
| 15 | Schonfeld Strategic Advisors LLC | $744K | 69K | ▲+8.8% Added · +6K sh | Q1 2026 | |
| 16 | Clear Street Group Inc. | $378K | 35K | ▲27× Added · +34K 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 |
|---|---|---|---|---|---|
| Mar 16, 2026 | SIM Sponsor 1 LLC | 10% Owner | Other (J) | 120K | $0 |
| Jan 28, 2026 | SIM Sponsor 1 LLC | 10% Owner | Other (J) | 0 | $0 |
| Class | 13F holders | Value held |
|---|---|---|
| SIMAthis pageSHS CL A | 25 funds | $176.5M |
| SIMAWWarrant | 20 funds | $1.9M |
| SIMAUUNIT 06/17/2029 | 4 funds | $52K |
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 |
|---|---|---|
| TITAN ACQUISITION CORP-CL ATACH | 16 funds | $117.0M |
| SOULPOWER ACQUISITION CO-ASOUL | 16 funds | $103.2M |
| OYSTER ENTERPRISES II ACQ-AOYSE | 16 funds | $98.1M |
| CAL REDWOOD ACQUISIT-CL ACRAQ | 16 funds | $79.6M |
| K&F GROWTH ACQUISITION COR-AKFII | 15 funds | $122.3M |
| ANDRETTI ACQUISITION CORP -APOLE | 15 funds | $105.7M |
| LAUNCH TWO ACQUISITION- CL ALPBB | 15 funds | $102.3M |
| SIZZLE ACQUISITION CORP-CL ASZZL | 15 funds | $95.7M |
| WEN ACQUISITION CORP-AWENN | 15 funds | $79.8M |
| TRANSLATIONAL DEVELOPMENT ACTDAC | 15 funds | $78.4M |
| HIGHVIEW MERGER CORP-CL AHVMC | 15 funds | $73.7M |
| CSLM DIGITAL ASSET ACQU - AKOYN | 15 funds | $73.6M |
Ranked by how many of SIMA'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 SIMA. 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.