Follow ten of the world's best-known institutional investors through their SEC 13F filings — Berkshire Hathaway, Bridgewater, Renaissance Technologies, Citadel, BlackRock, Vanguard, State Street, Two Sigma, Pershing Square and Viking Global. See what they bought and sold each quarter.
Quick Answer
Shadow Portfolios tracks hedge fund and institutional investor holdings through SEC 13F filings. Every quarter, funds managing $100M+ must disclose their equity positions. Our platform ingests these filings, parses individual holdings, detects position changes, and applies AI analysis to surface accumulation and distribution patterns across ten institutional portfolios.
We pull official SEC 13F filings from institutional investors managing $100M+ in assets. Filings are submitted quarterly, 45 days after each quarter ends.
Each filing is parsed to extract individual stock positions, share counts, market values, and portfolio weights for every holding in the fund.
We compare current filings against previous quarters to identify new positions, increased stakes, reduced positions, and complete exits.
AI analyzes position changes to surface accumulation patterns, conviction sizing, sector rotations, and consensus picks across top funds.
Monitor how institutional picks perform over time. See which funds have the best track records and which positions generated the highest returns.
We aggregate official SEC 13F filings and show each one with its source and filing date.
All data from public SEC filings. Not financial advice.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with $100M+ in qualifying assets. It discloses their equity holdings, giving retail investors a window into what the world's largest funds are buying and selling. Filings are due 45 days after each quarter ends.
Ten, chosen for name recognition: BlackRock, Vanguard, State Street, Berkshire Hathaway, Bridgewater Associates, Renaissance Technologies, Citadel Advisors, Two Sigma Investments, Pershing Square and Viking Global. Any manager filing a 13F discloses publicly, but only these ten are wired into this page — a search for anything else returns nothing, and we would rather say so than imply a catalogue we do not have.
13F filings are due 45 days after the end of each calendar quarter. This means there is a minimum 45-day delay between when trades occur and when they appear in filings. Despite this delay, the data still reveals long-term conviction positions, accumulation patterns, and strategic portfolio shifts that unfold over months.
The data comes directly from official SEC 13F filings, which are legally required disclosures. Each holding is shown with its source filing and date. However, 13F filings only cover long equity positions and certain options — they do not show short positions, fixed income, or private investments.
Yes, Shadow Portfolios is 100% free with no paywall. You can browse institutional holdings, track position changes, and analyze fund portfolios without creating an account. This is an educational research tool, not investment advice.
No. While tracking institutional holdings provides valuable research context, blindly copying trades is risky. The 45-day filing delay means prices may have moved significantly. Institutions also have different risk tolerances, time horizons, and portfolio sizes. Use this data as one input in your own research process, not as a trading signal.
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