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Company insider trades (Insider Alpha) | Blockcircle
Insider Alpha - Live insider buying and selling in US stocks
Every officer, director, and 10%-owner insider filing across US markets - ingested from SEC EDGAR in real time, enriched with cluster detection, per-insider track records, activist 13D disclosures, and sector-level flow analysis. Surface high-conviction insider buys before they appear in mainstream coverage.
Coverage
Every public insider filing from US-listed companies
Officer, director, and 10%-owner transactions
Open-market buys, open-market sells, option exercises, and 10b5-1 plan sales
Activist 13D disclosures with full position context
Institutional 13F holdings for cross-reference
Insider transfers and gift filings
Analytical Features
Cluster detection - multiple insider buys at the same company within a short window
Per-insider track record with forward-return performance scoring
Activist watchlist - 13D filings with position size and intent disclosure
Heatmap - sector-level insider buying versus selling pressure
Squeeze view - insider buying combined with elevated short interest
Per-company smart-money graph - all insider activity over time for a ticker
Backtest - historical performance of insider-buy signals by filter set
Analog finder - find historical setups that match current insider clusters
Frequently Asked Questions
What is Insider Alpha?
Insider Alpha is Blockcircle's live feed of stock trades by US company insiders. It picks up every public insider filing from officers, directors and owners of more than 10% of a company as soon as it is published, and adds cluster detection, per-insider track records, confidence scoring and activist 13D disclosures.
Where does the insider data come from?
Officers, directors and owners of more than 10% of a US-listed company must publicly report when they buy or sell its shares, within two business days of the trade. Insider Alpha picks up each of these insider filings as soon as it is published and turns it into a clean trade record: who traded, their role, the company, the shares, the price and the value.
What is a cluster buy?
A cluster buy is when multiple insiders at the same company file open-market purchases within a short window, typically two to four weeks. Cluster buys have historically been one of the strongest insider-trading signals because they require independent decisions by multiple parties with material non-public information about the company's prospects.
Compras de insiders. Vendas de insiders. Cada registo, em todo o lado.
Operações de insiders ao vivo nos mercados dos EUA, de executivos, conselheiros e grandes acionistas. Detecção de clusters, pontuação de convicção e uma separação clara entre operações de rotina e deliberadas. Um clique encaminha qualquer sinal para o Motor de Trading Universal.
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Atalhos: / buscar r atualizar Esc fechar buscaInsider trades from official filings
Activist disclosures are 13D filings, which are required when an investor acquires more than 5% of a public company's shares with the intent to influence corporate governance, strategy, or capital allocation. 13D filings often precede major corporate actions like board changes, spin-offs, or sales.
How does the insider confidence score work?
Every insider in the database has a track record score based on the forward returns of their historical trades. The score weights size, frequency, conviction (purchases on the open market versus 10b5-1 sales), and historical hit rate. Insider Alpha highlights filings from top-decile insiders so you can prioritise the highest-signal filings first.
What is the squeeze view?
The squeeze view ranks tickers by insider buying combined with elevated short interest, looking for setups where insiders are accumulating shares against a high short-interest backdrop - a classic precursor to short squeezes.