AMC Stocks Hub

What it is

AMC Stocks Hub: the homepage

AMC Stocks Hub is an independent research platform that aggregates and normalizes SEC Form 13F filings from over 500 asset management companies. The platform allows users to research quarterly 13F holdings, track which managers own the same securities (co-holdings), and monitor reported position changes across reporting quarters.

The database covers 556 asset managers with 105,788 13F holding records spanning 5,271 stocks. Users can browse the complete directory of tracked asset management companies, explore holdings data, access information about publicly listed asset management companies themselves, and use an AI research assistant to query the data.

AMC Stocks Hub sources all holdings data directly from official SEC Form 13F filings, enriched with market data. The platform does not manage money, sell funds, or provide investment advice—it normalizes public regulatory filings so users can research disclosed positions.

Quick answers

1. What is an asset management company (AMC)?

   An asset management company (AMC) is a firm that pools client capital and invests it in securities—stocks, bonds, and other assets—earning revenue through management fees on assets under management (AUM). Examples include BlackRock, Blackstone, and KKR.

2. What are 13F filings?

   Form 13F is a quarterly SEC filing that institutional investment managers with over $100M in AUM must submit, disclosing their U.S. equity holdings. The platform normalizes these filings from 500+ asset management companies so users can see exactly what they own.

3. What are asset management company co-holdings?

   Co-holdings are securities reported by more than one manager in the same quarter. Most held counts describe distinct imported filers; activity views describe new or absent records and changes in position value, not verified trades.

4. Where does the data come from?

   All holdings data comes from official SEC 13F filings, enriched with market data. Sector exposure, turnover, and holding period are computed from each company's disclosed portfolio. Size figures on manager cards are 13F portfolio value, not official AUM.

5. How is 13F portfolio value used to rank asset management companies?

   The figure on each manager card is 13F portfolio market value from the latest filing—the reported value of 13F securities—not the firm's official assets under management (AUM).