Among active 13F managers last quarter, 4 opened and 1 added, while none reduced or exited; the largest holder to move was Vontobel Holding Ltd. (+16%). No open-market insider trades in the last 180 days.
Funds lean in and no leg opposes.
15 tracked 13F filers disclose a position in AMCI as of the latest SEC 13F filings, a combined $2.2M in reported value. 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.
| # | Fund | Shares | Position value | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Vontobel Holding Ltd. | 142K | $707K | ▲+16% Added · +20K sh | Q2 2026 | |
| 2 | Harraden Circle Investments, LLC | 141K | $702K | —Held | Q2 2026 | |
| 3 | Geode Capital Management, LLC | 64K | $321K | ▲+2.0% Added · +1K sh | Q2 2026 | |
| 4 | Vanguard Capital Management LLC | 53K | $265K | ▼−0.3% Reduced · −191 sh | Q2 2026 | |
| 5 | Vanguard Fiduciary Trust Co | 26K | $128K | ▲+0.7% Added · +191 sh | Q2 2026 | |
| 6 | Northern Trust Corp | 11K | $57K | ▲New +11K sh | Q1 2026 | |
| 7 | Citigroup Inc | 6K | $35K | ▲New +6K sh | Q1 2026 | |
| 8 | Osaic Holdings, Inc. | 3K | $16K | ▲+28% Added · +650 sh | Q1 2026 | |
| 9 | UBS Group AG | 173 | $944 | ▼−99% Reduced · −12K sh | Q1 2026 | |
| 10 | Tower Research Capital LLC (TRC) | 106 | $578 | ▲New +106 sh | Q1 2026 | |
| 11 | Harbour Investments, Inc. | 50 | $273 | ▲New +50 sh | Q1 2026 | |
| 12 | SBI Securities Co., Ltd. | 25 | $125 | ▲New +25 sh | Q2 2026 | |
| 13 | Jones Financial Companies LLLP | 24 | $137 | ▼−89% Reduced · −204 sh | Q1 2026 | |
| 14 | Farther Finance Advisors, LLC | 3 | $18 | —Held | Q1 2026 | |
| 15 | Caitong International Asset Management Co., Ltd | 1 | $5 | ▲New +1 sh | Q2 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.
Last quarter, 4 funds opened a new position in AMCI and 1 added to an existing one, while none reduced or exited. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Their position there |
|---|---|---|
| Nvidia CorpNVDA | 6 funds | $2.0B |
| Apple IncAAPL | 6 funds | $1.1B |
| Amazon.com IncAMZN | 6 funds | $970.2M |
| Alphabet Inc-CL AGOOGL | 6 funds | $963.3M |
| UBS Group AG-RegUBS | 6 funds | $734.4M |
| Alphabet Inc-CL CGOOG | 6 funds | $719.5M |
| Micron Technology IncMU | 6 funds | $706.0M |
| Coca-Cola CoKO | 6 funds | $570.2M |
| Mastercard Inc - AMA | 6 funds | $478.3M |
| Taiwan Semiconductor-SP ADRTSM | 6 funds | $440.1M |
| Johnson & JohnsonJNJ | 6 funds | $426.6M |
| Advanced Micro DevicesAMD | 6 funds | $424.8M |
Ranked by how many of AMCI's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in AMCI.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Dec 9, 2025 | Harraden Circle Investors GP, LP | 10% Owner | Sell (S) 3 lots, same day | 134K | $1.9M |
| Dec 8, 2025 | Harraden Circle Investors GP, LP | 10% Owner | Sell (S) 11 lots, same day | 82K | $1.1M |
| Dec 5, 2025 | Harraden Circle Investors GP, LP | 10% Owner | Sell (S) 2 lots, same day | 4K | $40K |
One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.
Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.
Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive
| Source | Buying | Selling | Net |
|---|---|---|---|
13F funds Top 100 holders by value, passive included; the hero counts active managers only | 4 | 3 | – |
Insiders Form 4 open-market | 0 | 0 | $0 |
US House STOCK Act trades | 0 | 0 | $0 |
Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.
Connected entities for AMCI
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/AMCI/capital-change-brief"
Use Arkolith's capital_change_brief for AMCI. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for AMCI. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.