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 ACIU 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/ACIU"
Use Arkolith to show who owns ACIU, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BVF INC/IL | $54.5M | 19.8M | —Held | Q1 2026 | |
| 2 | CITADEL ADVISORS LLC | $735K | 267K | ▲+276% Added · +196K sh | Q1 2026 | |
| 3 | EFG International AG | $27K | 10K | ▼−23% Reduced · −3K sh | Q1 2026 | |
| 4 | GF FUND MANAGEMENT CO. LTD. | $6K | 2K | ▲+14% Added · +270 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 |
|---|---|---|---|---|---|
| Jun 11, 2026 | June Carl Howard | Director | Grant (A) | 17K | $0 |
| Jun 11, 2026 | June Carl Howard | Director | Grant (A) | 39K | $0 |
| Jun 11, 2026 | Buetler Monika | Director | Grant (A) | 18K | $0 |
| Jun 11, 2026 | Buetler Monika | Director | Grant (A) | 42K | $0 |
| Jun 11, 2026 | AGUIAR-LUCANDER RENEE | Director | Grant (A) | 17K | $0 |
| Jun 11, 2026 | AGUIAR-LUCANDER RENEE | Director | Grant (A) | 39K | $0 |
| Jun 11, 2026 | Zuegel Martin | Interim CEO, Director | Grant (A) | 33K | $0 |
| Jun 11, 2026 | Zuegel Martin | Interim CEO, Director | Grant (A) | 78K | $0 |
| Jun 11, 2026 | Twyman Roy Ervin | Director | Grant (A) | 17K | $0 |
| Jun 11, 2026 | Twyman Roy Ervin | Director | Grant (A) | 39K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MIRUM PHARMACEUTICALS INCMIRM | 6 funds | $243.8M |
| NVIDIA CORPNVDA | 5 funds | $5.9B |
| APPLE INCAAPL | 5 funds | $3.7B |
| AMAZON.COM INCAMZN | 5 funds | $3.5B |
| MICROSOFT CORPMSFT | 5 funds | $3.4B |
| ALPHABET INC-CL AGOOGL | 5 funds | $2.4B |
| BROADCOM INCAVGO | 5 funds | $2.3B |
| META PLATFORMS INC-CLASS AMETA | 5 funds | $2.0B |
| MICRON TECHNOLOGY INCMU | 5 funds | $1.8B |
| TAIWAN SEMICONDUCTOR-SP ADRTSM | 5 funds | $1.8B |
| ALPHABET INC-CL CGOOG | 5 funds | $1.8B |
| JPMORGAN CHASE & COJPM | 5 funds | $1.6B |
Ranked by how many of ACIU'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 ACIU. 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.