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Insider Transactions: Open-Market Buy & Sell Tracking Alert

Insider Trading Alerts - Open-Market Buys & Sells from SEC Form 4 Filings

How to Set Up (3 Steps)

  • Step 1: Search for any stock on StockAlert.pro (e.g., AAPL, NVDA, JPM)
  • Step 2: Select "Insider Transactions" and set a minimum value threshold (recommended: $100k+ for large caps, $25k+ for small caps)
  • Step 3: Choose direction (Buy, Sell, or Both), optionally enable cluster detection, and save

Alerts trigger only on open-market transactions filed via SEC Form 4. RSUs, stock option exercises, and non-cash grants are excluded. You receive the insider's name, title, transaction type (buy/sell), share count, price, and total value.

Example: JPMorgan Insider Cluster Buy - October 2023

  • Setup: JPM trading at $143 after regional banking concerns and rising rate uncertainty. Broad pessimism on financials sector.
  • Signal: Three JPM directors purchased $1.2M, $800k, and $500k in open-market shares within 5 days (cluster pattern). CEO had purchased $25M earlier that quarter.
  • Alert Trigger: Cluster alert fired on 3rd transaction within 7 days, each above $100k minimum threshold.
  • Result: JPM rallied from $143 to $205 (+43%) over the following 6 months as rate concerns faded and NII projections improved.
  • Key Insight: Multiple executives buying with personal capital during broad pessimism signaled institutional-level conviction that individual purchases alone would not have confirmed.

Scenario Guide

ScenarioSignal TypeThresholdExampleAction
CEO Large BuySingle buy >$500k$500k+CEO buys $2M after selloffStrong conviction signal, research catalyst
Cluster Buying2+ insiders within 7 days$100k+ each3 directors buy $500k-$1.2M totalStrongest signal, often precedes re-rating
Director Routine BuySingle small buy$25k-$100kDirector adds $50k annuallyWeak signal, may be routine accumulation
CFO Sells After LockupPlanned disposition$250k+CFO sells 10% of holdings post-lockupOften pre-planned (10b5-1), low signal value
Multi-Insider Selling3+ insiders selling$250k+ eachOfficers selling before earningsCaution signal, check position sizing and context

When to Use

  • You want to track insider conviction on stocks in your portfolio or watchlist as an additional data point
  • You're looking for confirmation signals before adding to positions, especially after selloffs or earnings misses
  • You want a cleaner signal than headlines or rumors, based on actual money committed by people with inside knowledge of the business

When Not to Use

  • As a standalone buy/sell trigger without additional fundamental research (insider buys are directionally correct ~60% of the time, not 100%)
  • For index funds or ETFs (no individual insider transactions)
  • Tracking insider sells in isolation (70%+ of insider sells are pre-planned 10b5-1 dispositions, diversification, or tax management)

Conclusion

Insider transactions rank among the strongest behavioral signals in equity markets. Use insider buying as a confirmation tool for existing thesis. Cluster buys (2+ executives within days) carry the highest predictive value. Insider sells require more context since most are pre-planned or compensation-related.

Community Alerts

2 alerts
AMZNactive
Threshold
$10,000.00
Created
Feb 12, 2026
MSFTactive
Threshold
$1.00
Created
Feb 12, 2026

Frequently Asked Questions

Q:Why exclude RSUs and option exercises?
RSUs and option exercises are compensation mechanics, not discretionary decisions. When a CFO's RSUs vest and she sells 50% for taxes, that's required by her comp plan. When the same CFO spends $500k of personal savings buying shares on the open market, that's conviction. About 80% of SEC Form 4 filings are compensation-related. Filtering for open-market transactions isolates the 20% that carries genuine signal.
Q:What threshold should I set?
Depends on company size. Large caps ($50B+): $100k-$500k minimum. A $50k buy by a billionaire CEO is pocket change. Mid caps ($5-50B): $50k-$200k. Executives have less personal wealth, smaller purchases are meaningful. Small caps (<$5B): $25k-$100k. Even $25k can represent a significant personal commitment from a small-cap director. Rule of thumb: set the threshold high enough to filter routine accumulation plans but low enough to catch genuine conviction purchases.
Q:What is a cluster alert and why does it matter?
A cluster alert triggers when 2 or more executives trade in the same direction within a short window (e.g., 7 days). One insider buying could be personal (bonus reinvestment, compensation plan). Three insiders buying within a week suggests shared conviction based on non-public outlook. Academic research shows cluster insider buying outperforms single-insider buying by 4-6% annually, making it the most predictive form of insider signal.
Q:Are insider buys more predictive than insider sells?
Yes. Insider buys are roughly 3x more predictive than sells. Reason: insiders buy for one reason (they expect the stock to go up). They sell for many reasons: diversification, tax planning, home purchase, divorce settlement, pre-planned 10b5-1 sales, or portfolio rebalancing. About 70% of insider sells are pre-planned or non-discretionary. Only cluster selling (3+ executives selling simultaneously) carries reliable negative signal.
Q:What SEC filings does this alert track?
SEC Form 4 filings, which officers, directors, and beneficial owners (10%+ shareholders) must file within 2 business days of any transaction. We filter specifically for open-market purchases and sales (transaction codes P and S). We exclude: derivative transactions (options, warrants), gifts (code G), inheritances, and automatic transactions under 10b5-1 plans where identifiable.
Q:How fast do insider transaction alerts trigger after a filing?
Insider transaction data is checked periodically during market hours. SEC requires Form 4 filings within 2 business days of the transaction, so there is an inherent 1-2 day delay from when the trade occurs to when the filing becomes public. Most large-cap insiders file same-day or next-day. Your alert triggers as soon as we detect the filing matching your criteria.
Q:Should I treat all insider selling as a warning sign?
No. Most insider selling is not a warning. CEOs and directors hold concentrated positions and regularly sell for liquidity, diversification, and tax reasons. Check context: (1) What percentage of holdings did they sell? Selling 5% is routine; selling 50% is concerning. (2) Is it a 10b5-1 pre-planned sale? These are scheduled months in advance and carry no signal. (3) Are multiple insiders selling? Cluster selling is more meaningful. (4) Is the company at all-time highs? Selling near highs is rational portfolio management.
Q:How do I combine insider alerts with other alert types?
Strong combinations: (1) Insider Buy + P/E Below Threshold = value conviction from management, (2) Insider Buy + New 52-Week Low = management buying during capitulation, (3) Insider Cluster Buy + Golden Cross = fundamental + technical alignment, (4) Insider Buy + Earnings Announcement = management signaling confidence before results. Each combination adds context that a single signal cannot provide.
Q:Do insider transactions work for small-cap stocks?
Yes, often better than for large caps. Small-cap executives typically own a higher percentage of the company. A $100k open-market purchase by a small-cap CEO might represent 2-3% of their net worth, compared to 0.01% for a mega-cap CEO. Research shows insider buying signals are strongest in small and mid-cap stocks where information asymmetry is highest and analyst coverage is thinnest.
Q:What does 'open-market' mean exactly?
Open-market transactions are voluntary purchases or sales made through a broker on a public exchange at prevailing market prices. The insider decides to buy or sell, places an order, and pays (or receives) the market price. This contrasts with: option exercises (converting granted options to shares at a preset price), RSU vesting (shares awarded as compensation), private transactions (negotiated off-exchange), and gifts (transfers with no cash changing hands). Open-market transactions require personal financial commitment, which is why they carry signal value.
Q:How many insider transaction alerts should I set up?
Focus on 10-20 stocks where insider activity could change your investment decision. Core portfolio holdings (you want to know if management is buying or selling), top watchlist candidates (insider buying might trigger your entry), and stocks near key decision points (post-earnings, near support levels). Avoid setting alerts on 100+ stocks. You'll get alert fatigue and stop paying attention to the signals that matter.
Q:Can insider buying be misleading?
Yes, in certain cases. (1) PR-motivated buying: some CEOs make token purchases ($50k on a $500M net worth) to signal confidence publicly without real commitment. That's why minimum thresholds matter. (2) Catching a falling knife: insiders bought heavily at Enron, Lehman, and SVB before collapse. Insiders are not infallible. (3) Sector-wide headwinds: insider conviction doesn't override macro or industry forces. Use insider buying as one input alongside fundamentals, not as a guaranteed outcome.
Q:What's the difference between Form 4 and Form 13F?
Form 4: filed by company insiders (officers, directors, 10%+ owners) within 2 business days of a transaction. Shows individual trades with exact dates, prices, and share counts. This is what our alert tracks. Form 13F: filed quarterly by institutional investors managing $100M+. Shows total holdings as of quarter-end, reported 45 days later. No transaction detail, stale data, and no insight into conviction. Form 4 provides actionable, near-real-time data; 13F is a delayed quarterly snapshot.

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