insider-trading-analyzer

Original：🇺🇸 English

Translated

Analyze insider trading patterns to surface companies with significant, meaningful insider buying activity. Use when the user asks to review insider trading activity, find stocks insiders are buying, analyze SEC Form 4 filings, detect insider buying clusters, assess management confidence through insider purchases, or identify bullish insider signals in a sector or industry.

2installs

Sourcegeeksfino/finskills

Added on2026-02-07

NPX Install

npx skill4agent add geeksfino/finskills insider-trading-analyzer

SKILL.md Content

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Insider Trading Pattern Analyzer

Act as a professional insider trading analyst. Review recent insider trading activity to identify companies exhibiting meaningful, clustered insider buying — a historically strong signal of management confidence and potential undervaluation.

Workflow

Step 1: Define Scope

Confirm with the user:

Sector or industry — specific sector (e.g., Technology, Healthcare) or broad market scan
Time window — default: last 90 days; user may widen or narrow
Number of results — default: top 5 companies
Market scope — US (SEC Form 4), international, or both
Insider roles of interest — all insiders, C-suite only, directors only, or 10%+ beneficial owners

If the user wants defaults, proceed with: all US sectors, 90 days, top 5, all insider roles.

Step 2: Apply Insider Buying Filters

Screen for companies matching ALL of the following criteria. See references/insider-signal-criteria.md for detailed thresholds and edge cases.

Filter	Criterion
Cluster buying	Multiple insiders (≥ 2) buying within the time window
Transaction type	Open-market purchases only (exclude option exercises, grants, automatic plans)
Recency	Purchases within the last 90 days (or user-specified window)
Meaningfulness	Purchase size meaningful relative to insider's compensation and existing holdings

Step 3: Rank and Analyze

Rank qualifying companies by signal strength using these factors (see references/insider-signal-criteria.md for scoring details):

Number and seniority of insiders buying
Aggregate dollar value of purchases
Purchase size relative to insider compensation
Buying into price weakness (contrarian signal)
Cluster density (multiple buys within a narrow window)

Step 4: Deep-Dive on Top Results

For each of the top companies, provide a detailed analysis covering:

Who is buying and how much — Name, title, number of shares, dollar value, dates, and what percentage of their holdings the purchase represents
Historical impact — How insider buying has preceded stock performance in this specific company's history
Management confidence signal — What the buying pattern likely signals about management's view of the company's prospects
Potential red flags — Reasons the buying might not be as bullish as it appears

See references/output-template.md for the structured report format.

Step 5: Compile and Present

Present findings as a structured report:

Executive Summary — Overview of insider activity trends in the scanned sector/market
Methodology — Filters applied, time window, data sources
Individual Company Profiles — One section per company using the output template
Comparative Table — Side-by-side insider buying metrics
Disclaimers — Insider trading data interpretation caveats

Data Enhancement

For live market data to support this analysis, use the FinData Toolkit skill (

findata-toolkit-us

). It provides real-time stock metrics, SEC filings, financial calculators, portfolio analytics, factor screening, and macro indicators — all without API keys.

Important Guidelines

Legal distinction: "Insider trading" in this context refers to legal insider transactions reported to regulators (SEC Form 4 in the US), not illegal trading on material non-public information.
Open-market only: Exclude option exercises, restricted stock vesting, 10b5-1 automatic plan purchases, and gift transactions — these do not reflect discretionary conviction.
Context matters: Insider buying after a large stock decline is a stronger signal than buying during a rally. Always note price context.
Sell signals are weaker: Insider selling is far less informative than buying — insiders sell for many reasons (diversification, taxes, liquidity) but buy for only one (they think the stock is cheap).
Cluster > solo: A single insider buying is interesting; multiple insiders buying independently is a materially stronger signal.
Data currency: Always state the data cutoff date and note that filings can be delayed up to 2 business days after the transaction.
Not a buy recommendation: Insider buying is one signal among many. Always frame findings as informational, not as investment advice.