13F GuideFiling Basics
What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
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Real-time institutional 13F portfolio filings, Form 4 insider buying convergence, GICS sector capital flows, and AI Portfolio Twin diagnostics across 13,000+ funds.
SEC 13F Official Filings
Total Market 13F Flow
Insider + Guru Buy Signals
Buy $11.62T / Sell $6.11T
2026-06-30
Enter your stock holdings to instantly calculate overlap with 13,000+ hedge funds, guru conviction, and insider buy signals.
See whether retail favorites (PLTR, ASTS, COIN) are backed by real C-suite Form 4 buying and 13F accumulation.
Uncovering high-conviction dual buy signals where corporate C-suite insiders (Form 4) and top hedge funds (13F) buy the same stock in the same quarter.
Stocks where 13F institutional buyers and company insiders are buying simultaneously
KKR & CO INC
SIMON PROPERTY GROUP INC
BOSTON SCIENTIFIC CORP
PFIZER INC
REPUBLIC SERVICES INC
Aptiv PLC
Tracking net capital inflows and outflows across all GICS sectors based on quarterly institutional filings.
Parsed in real time from SEC EDGAR filings, featuring Berkshire Hathaway, Bridgewater, ARK Invest, top buys, and sector heatmaps.
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Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.
Understand how institutional 13F data and insider Form 4 filings power smarter investment insights.
SEC Form 13F is a mandatory quarterly report filed by institutional investment managers with over $100M in AUM (such as Berkshire Hathaway, Bridgewater, Tiger Global). Tracking 13F filings reveals top fund managers' high-conviction long positions, new entries, and sector rotation strategies.
Because 13F filings have up to a 45-day delay, AlphaSMO cross-references near real-time SEC Form 4 insider buying filings with 13F institutional accumulation. When corporate executives buy shares with their own money while top hedge funds add to the same stock, it creates a powerful dual-confirmation convergence signal.
All data is synchronized directly from the SEC EDGAR system. As soon as a fund or insider files Form 13F, Form 4, Form 144, or 13D/13G, our pipeline automatically parses the filing, recalculates net flows, and generates AI narrative breakdowns.