# Insider Trading > Track and analyze insider buying/selling activity from SEC Form 4 filings - Skill: `serennity007/insider-trading` (Agent Skill) - Install (CLI): `npx skillmds@latest add serennity007/insider-trading` - Raw SKILL.md: https://api.skillmd.com/api/skills/serennity007/insider-trading/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: Serennity007 (https://skillmd.com/u/serennity007) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/serennity007/insider-trading --- # Insider Trading Analysis ## ⚠️ Data Verification — Do This Before Any Analysis Before running any analysis, always retrieve the latest market data for the ticker: 1. **Fetch current price** — use web search or ask the user for the live price, 52-week range, and market cap. Never assume a price from training data. 2. **Confirm key figures** — recent earnings, revenue, key ratios (P/E, P/S, etc.) as applicable to this skill. 3. **State your data source** — note where the numbers came from (e.g., "Google Finance, June 19 2026") at the top of the output. 4. **Flag stale data explicitly** — if live data is unavailable, display this warning before proceeding: > ⚠️ **Live data unavailable.** The following analysis uses training-data estimates which may be significantly out of date. Verify all prices and metrics before making any decisions. Never silently substitute training-data estimates for current prices. When in doubt, ask the user to paste the latest quote. --- Comprehensive analysis of insider transaction activity to identify investment signals, patterns, and potential red flags from SEC Form 4 filings. ## Analysis Framework ### 1. Transaction Summary (Last 6-12 Months) Provide overview of insider trading activity: **Transaction Counts** - Total transactions: [Number] - Buys: [Number] ([%] of total) - Sells: [Number] ([%] of total) - Exercises/Awards: [Number] (non-market transactions) **Transaction Volume** - Total value traded: $[Amount] - Buy volume: $[Amount] - Sell volume: $[Amount] - Net insider sentiment: $[Net Amount] (Buy - Sell) **Active Period Analysis** - Most active month: [Month] - Clustered activity periods: [Dates] - Quiet periods: [Dates] ### 2. Insider Sentiment Analysis Calculate and interpret net insider sentiment: **Net Sentiment Calculation** ``` Net Sentiment = (Buy $ - Sell $) / (Buy $ + Sell $) Ranges: +0.5 to +1.0 = Strongly Bullish +0.2 to +0.5 = Moderately Bullish -0.2 to +0.2 = Neutral -0.5 to -0.2 = Moderately Bearish -1.0 to -0.5 = Strongly Bearish ``` **Sentiment Context** - Current sentiment vs. historical baseline - Sentiment trend (improving/deteriorating) - Significance level (number and size of transactions) - Comparison to peer company insiders **Reliability Factors** - Sample size (number of insiders trading) - Transaction size relative to holdings - Timing relative to information events - Consistency across multiple insiders ### 3. Significant Transactions Highlight meaningful insider trades: **Criteria for Significance** - Transaction size > $1 million - Position change > 10% of holdings - Unusual timing (near lows/highs, before announcements) - CEO or CFO transactions - Multiple insiders trading in same direction within short period **For Each Significant Transaction** | Date | Insider | Position | Transaction | Shares | Value | % of Holdings | Price | Notes | |------|---------|----------|-------------|--------|-------|---------------|-------|-------| | [Date] | [Name] | [Title] | Buy/Sell | [#] | $[Amount] | [%] | $[Price] | [Context] | **Transaction Analysis** - **Bullish Signals**: Large insider buys, clustered buying, CEO purchases, buying near 52-week lows - **Bearish Signals**: Large insider sells, clustered selling, executive selling before bad news - **Neutral Signals**: Small routine sells for diversification, 10b5-1 plan executions ### 4. Insider Categories Analyze transactions by insider role: **Executive Officers (CEO, CFO, COO)** - Highest signal value due to information access - Large transactions particularly meaningful - Sales less concerning if part of regular compensation **Board of Directors** - Independent directors' purchases carry strong signals - Less frequent trading but often meaningful - May have strategic visibility beyond operations **Major Shareholders (>10% owners)** - Often have board seats or strategic influence - Large transactions can move markets - Sales may be for portfolio rebalancing **Other Insiders (VPs, Senior Managers)** - Weaker signal but useful in aggregate - Clustered activity more meaningful than individual trades - May indicate operational knowledge ### 5. Transaction Types & SEC Forms Interpret different transaction codes: **Form 4 Transaction Codes** - **P (Purchase)**: Open market buy - BULLISH SIGNAL - **S (Sale)**: Open market sell - BEARISH SIGNAL (but often routine) - **M (Exercise)**: Option exercise - Neutral - **F (Tax Payment)**: Shares surrendered for taxes - Neutral - **A (Award)**: Stock grant/award - Neutral - **G (Gift)**: Gift transfer - Neutral - **D (Disposition)**: Return to company - Neutral **Form 3 vs. Form 4 vs. Form 5** - **Form 3**: Initial statement of beneficial ownership (new insider) - **Form 4**: Changes in ownership (filed within 2 business days) - **Form 5**: Annual statement of changes (deferred reporting) **10b5-1 Trading Plans** - Pre-arranged trading plans to avoid insider trading allegations - Marked in filings if transaction was under 10b5-1 - Less signal value than discretionary trades - Look for plan adoption/termination patterns ### 6. Ownership Trends Track changes in insider ownership percentage: **Current Ownership Structure** - Total insider ownership: [%] - CEO ownership: [%] - Top 5 insiders combined: [%] **Ownership Trend (12 months)** ``` Quarter Total Insider % Change from Prior Q4 2024 15.2% +0.3% Q3 2024 14.9% -0.1% Q2 2024 15.0% +0.5% Q1 2024 14.5% +0.2% ``` **Interpretation** - **Increasing ownership**: Insiders accumulating = Bullish - **Stable ownership**: Confidence maintained = Neutral to Bullish - **Decreasing ownership**: Distribution = Bearish (but check reasons) **Skin in the Game Assessment** - High insider ownership (>20%): Strong alignment - Medium ownership (10-20%): Adequate alignment - Low ownership (<10%): Weaker alignment - CEO ownership relative to compensation ### 7. Timing Analysis Evaluate timing of insider transactions: **Relative to Stock Price** - Buying near 52-week lows: Strong bullish signal - Buying after significant decline: Contrarian confidence - Selling near 52-week highs: Less bearish (profit-taking) - Selling before decline: Red flag if not disclosed later **Relative to Information Events** - Before earnings release - Before major announcements (M&A, product launches) - During blackout periods (should be restricted) - After significant news (reaction to public information) **Seasonal Patterns** - Post-earnings window trading (common) - Year-end tax-loss selling - Quarterly option exercise cycles - Annual equity grant patterns **Red Flag Timing** - Trading during supposed blackout periods - Selling shortly before bad news announcement - Exercising and immediately selling (vs. holding) - Rapid succession of sells by multiple insiders ### 8. Pattern Recognition Identify meaningful patterns in trading activity: **Bullish Patterns** - Clustered buying by multiple insiders within 1-2 weeks - First-time purchases by long-tenured executives - Buying during period of stock weakness or negative sentiment - Insiders increasing position size significantly (>25%) - CEO making largest purchase of tenure **Bearish Patterns** - Clustered selling by multiple insiders - CEO or CFO selling large percentage of holdings - First-time sells by insiders who previously only bought - Selling despite stock decline (urgency to exit) - Executive departures followed by sales **Neutral Patterns** - Regular quarterly option exercises and sells - Small percentage sells for diversification (<5% of holdings) - Tax payment share forfeitures - Routine 10b5-1 plan executions - Gift transfers to family trusts ### 9. Red Flags & Warning Signs Identify concerning patterns: **High-Severity Red Flags** - CEO or CFO selling >50% of holdings - Clustered selling before earnings miss or guidance cut - Trading during blackout window - Late Form 4 filing (>2 days) without explanation - Pattern of selling before negative news **Medium-Severity Red Flags** - Increasing rate of insider selling - Multiple executives selling simultaneously - Selling despite recent insider buying by others - Large sales shortly after option vesting - Board member resignations followed by sales **Context Matters** - Insider selling is common and often benign - Check for 10b5-1 plans (pre-arranged sales) - Consider personal circumstances (divorce, estate planning) - Look at historical patterns for that individual - Assess whether selling is proportional to holdings ### 10. Data Sources & Research Tools Reference the following sources for insider trading data: **Primary Source - SEC EDGAR** - Form 4 filings: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=4&company=[TICKER] - Form 3 filings: Initial beneficial ownership - Form 5 filings: Annual statements - File within 2 business days of transaction (Form 4) **Aggregator Websites** - **OpenInsider.com**: Free, comprehensive database with filters - Cluster analysis tools - Screeners for significant transactions - Historical data back 10+ years - **SEC Form 4 Tracker**: Real-time Form 4 monitoring - **Finviz Insider**: Basic insider data with visualizations - **GuruFocus Insider**: Premium insider analysis **Premium Tools** - **Bloomberg Terminal**: Comprehensive insider data and analytics - **FactSet**: Insider transaction database - **S&P Capital IQ**: Detailed ownership and transaction data **Key Data Points to Extract** - Insider name and title - Transaction date and filing date - Shares bought/sold - Price per share - Shares owned after transaction - Transaction code (P, S, M, etc.) - Form 4 footnotes (10b5-1 plan indicator) ## Input Formats ### Format 1: Ticker Symbol ``` User: /insider-trading AAPL Claude retrieves recent Form 4 data from SEC EDGAR and analyzes ``` ### Format 2: Specific Time Period ``` User: /insider-trading TSLA --period 2024-Q4 Claude focuses on Q4 2024 insider transactions ``` ### Format 3: Custom Data Paste ``` User: /insider-trading --data [Paste Form 4 data table or CSV from OpenInsider/SEC] Claude analyzes provided data ``` ## Output Provide comprehensive insider trading analysis report with: ### 1. Executive Summary - **Overall Insider Sentiment**: Bullish / Neutral / Bearish - **Confidence Level**: High / Medium / Low - **Key Takeaways**: 3-5 most important findings - **Investment Signal**: Buy / Hold / Sell indication - **Time Period Analyzed**: [Date range] ### 2. Transaction Summary Table ``` Period: Last 6 Months Total Transactions: [N] Total Buy Transactions: [N] ($[Amount]) Total Sell Transactions: [N] ($[Amount]) Net Insider Activity: $[Amount] Net Sentiment Score: [+0.XX or -0.XX] ``` ### 3. Significant Transactions (Top 10) Detailed table with context for each major transaction ### 4. Insider Category Breakdown Analysis by executive officers, board members, and major shareholders ### 5. Ownership Trend Analysis Current ownership % and historical trend (4 quarters) ### 6. Timing & Pattern Analysis - Stock price context during trading periods - Identified bullish or bearish patterns - Seasonal or cyclical factors ### 7. Red Flags & Concerns - List any identified warning signs - Severity assessment - Recommended monitoring ### 8. Comparison to Peers Brief comparison of insider sentiment vs. industry peers (if available) ### 9. Historical Context - How current activity compares to historical baseline - Notable changes in behavior - Track record of insider signals ### 10. Investment Implications - Overall assessment and confidence level - Key bullish factors from insider activity - Key bearish factors or concerns - Recommended action - Monitoring plan for future activity ### 11. Data Sources Used - SEC EDGAR filings referenced - Date range of analysis - Number of Form 4 filings reviewed ## Interpretation Guidelines ### When Insider Buying is STRONGLY Bullish 1. Multiple insiders buying in 1-2 week period 2. CEO making unusually large purchase 3. Buying after significant stock decline (>20%) 4. Insiders buying with personal cash (not option exercises) 5. First-time buyers or return to buying after long gap ### When Insider Buying is MODERATELY Bullish 1. Single insider making meaningful purchase 2. Regular accumulation pattern 3. Buying at all-time highs (conviction in further growth) 4. Board member purchases ### When Insider Selling is LESS Concerning 1. 10b5-1 pre-arranged plan sales 2. Small percentage of holdings (<5%) 3. Regular quarterly pattern 4. Diversification after large stock appreciation 5. Tax payments or estate planning ### When Insider Selling is CONCERNING 1. Clustered selling by multiple executives 2. CEO/CFO selling >25% of holdings 3. Selling despite stock decline 4. No 10b5-1 plan indicated 5. Selling shortly before negative news ### Signal Reliability Factors - **Sample size**: More insiders trading = stronger signal - **Magnitude**: Larger $ amounts = stronger signal - **Timing**: Unusual timing = stronger signal - **Context**: Contrarian trades (buying weakness) = stronger signal - **Track record**: Historically accurate insiders = stronger signal ## Usage Examples ### Example 1: Basic Analysis ``` User: /insider-trading NVDA Claude: Analyzes last 6 months of NVDA insider activity, identifies: - Net bullish sentiment ($15M in buys vs. $2M in sells) - CEO purchased $5M at $450/share (now $600) - 4 VPs also bought in same 2-week window - Signal: Moderately Bullish, Confidence: High ``` ### Example 2: Before Earnings ``` User: /insider-trading AAPL --period "before-earnings" Claude: Analyzes trading in 30-60 days before recent earnings: - No unusual activity (good sign - no exits before announcement) - Regular 10b5-1 sales only - Signal: Neutral (no red flags) ``` ### Example 3: Red Flag Detection ``` User: /insider-trading ABC --focus red-flags Claude: Specifically looks for warning signs: - CFO sold 60% of holdings last month - 3 board members resigned and sold within 1 week - Selling accelerated despite 30% stock decline - Signal: BEARISH, Confidence: HIGH - Recommend caution ``` ## Integration Notes - Combine with /fundamental-analysis for complete due diligence - Use /institutional-ownership for full insider + institutional picture - Feed analysis to /report-generator for visual charts of insider activity - Best used monthly or after significant insider filing activity - Particularly valuable when analyzing small-mid cap stocks (insiders have more edge) ## Standard Signal Output All analysis concludes with this standardized block: ``` ## Thesis Invalidation After delivering the analysis signal, specify what would reverse it: **If signal is BULLISH — thesis breaks if:** - Price closes below the MA200 / key support level identified in this analysis on above-average volume - 3+ insiders file Form 4 sells within a 30-day window OR CEO sells >5% of holdings - Macro regime shift: Fed pivots hawkish unexpectedly, recession probability >60% **If signal is BEARISH — thesis breaks if:** - Price closes above key resistance / MA200 level with volume confirmation - CEO/CFO initiate new purchases >$1M within 30 days - Fundamental improvement: surprise earnings beat >20% with guidance raise **Re-run this analysis when:** - [ ] Next earnings release - [ ] Price moves ±15% from current level - [ ] 60 days have elapsed - [ ] Material news event (acquisition, leadership change, regulatory decision) ╔══════════════════════════════════════════════╗ ║ INVESTMENT SIGNAL ║ ╠══════════════════════════════════════════════╣ ║ Signal: BULLISH / NEUTRAL / BEARISH ║ ║ Confidence: HIGH / MEDIUM / LOW ║ ║ Horizon: SHORT / MEDIUM / LONG-TERM ║ ║ Score: X.X / 10 ║ ╠══════════════════════════════════════════════╣ ║ Action: BUY / HOLD / SELL ║ ║ Conviction: STRONG / MODERATE / WEAK ║ ╚══════════════════════════════════════════════╝ ``` **Score Guide**: 8.0–10.0 Strongly Bullish | 6.0–7.9 Moderately Bullish | 4.0–5.9 Neutral | 2.0–3.9 Moderately Bearish | 0.0–1.9 Strongly Bearish **Confidence**: HIGH (strong data, clear signals) | MEDIUM (mixed signals) | LOW (limited data, conflicting signals) **Horizon**: SHORT-TERM (1 week–3 months) | MEDIUM-TERM (3 months–1 year) | LONG-TERM (1+ years)