Every quarter, the world's largest hedge funds reveal their equity holdings to the SEC. These 13F filings show you exactly what institutions worth $100M+ are buying, selling, and building positions in — with one important catch.
Section 13(f) of the Securities Exchange Act requires institutional investment managers with $100M+ in equity assets to file a quarterly disclosure of their holdings with the SEC. These 13F filings are a window into the portfolios of the most sophisticated capital allocators in the world — hedge funds, mutual funds, pension funds, and family offices. Flow Antenna aggregates 13F data from EDGAR, tracks period-over-period position changes, and surfaces meaningful accumulation and distribution patterns, particularly when they converge with other signal sources.
Institutional managers with $100M+ in equity AUM must file within 45 days of quarter end. Flow Antenna queries EDGAR automatically and parses all new 13F submissions.
We compare each filing against the prior quarter, flagging new positions, significant adds (+20% or more), and full exits. Large new positions from managers with strong track records receive the highest scores.
When a stock appears in multiple 13F filings AND has current options flow or insider buying, that cross-source convergence triggers our highest-conviction alerts.
13F data is the most comprehensive public window into institutional positioning. While the 45-day filing lag means the data is backward-looking, institutional accumulation patterns tend to persist — funds don't build $100M positions to exit them within a quarter. When a marquee fund initiates a new position AND options flow and insider buying are confirming the thesis in real time, that combined signal is historically among the highest-accuracy patterns in Flow Antenna's database.
Flow Antenna monitors all 535 congressional disclosures 24/7. When a new filing hits, we score it instantly and send you an alert with our conviction rating and Quinn AI analysis.
Free plan includes congressional trades · No credit card required
Up to 45 days old. Funds must file within 45 days of each quarter end. March 31 holdings are due by May 15. This lag is the main limitation — prices often move significantly before the filing appears. Flow Antenna mitigates this by cross-referencing 13F data with real-time signals like options flow and dark pool activity.
No. 13F filings only disclose long equity positions, convertible notes, and options held. Short positions, bonds, futures, and non-US-listed securities are not included. A fund can look long on paper while being heavily short via derivatives — which the filing doesn't capture.
Any institutional investment manager that exercises investment discretion over $100M or more in Section 13(f) securities must file. This includes hedge funds, mutual funds, bank trust departments, pension funds, and insurance companies.
How to read quarterly institutional disclosures, spot meaningful accumulation patterns, and use 13F data alongside real-time signals for higher-conviction trades.
More signal types: Insider Trading · Dark Pool · Options Flow · Congress Trades