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SEC Form 4 · open-market purchases

Know when insiders buy their own stock.

InsiderBeacon ranks every open-market purchase of $25,000 or more by CEOs, CFOs and directors. Follow the people you trust, get an alert when they buy, and read a plain-English breakdown of each trade.

Free plan at launch. We'll email you when the app opens. How we use your email

  • Every trade links to its SEC filing
  • Hidden-deal and cluster alerts
  • Questions answered within 24 hours
The InsiderBeacon app showing the week's insider purchases ranked by signal score, led by Accelevation CEO Michael Rubiera's $3.7 million buy with a score of 80.

Recent notable insider buys

Real filings from October 5 to 13, 2026, ranked by signal score. Each one links to the original Form 4.

  1. ACCVAccelevation Holdings Corp.
    Michael RubieraCEO
    $3.7M+16% stake203,200 @ $18.00
    80 Traded Oct 1 · filed Oct 55 insiders buying Form 4 for Michael Rubiera, ACCV (opens sec.gov) ↗
  2. AGMBAgomab Therapeutics NV
    Pierre KemulaCFO
    $86kNew position10,000 @ $8.59
    78 Traded Oct 6 · filed Oct 73 insiders buying Form 4 for Pierre Kemula, AGMB (opens sec.gov) ↗
  3. HEIHEICO Corp
    Carol F. FineDirector
    $175k+22% stake795 @ $220.30
    67 Traded Oct 8 · filed Oct 138 insiders buying Form 4 for Carol F. Fine, HEI (opens sec.gov) ↗
  4. NXHNeighborhood Intelligence, Inc.
    Marcus LemonisExecutive Chair & CEO
    $1.0M+51% stake362,319 @ $2.76
  5. GMEGameStop Corp.
    Ryan CohenPresident, CEO & Chair
    $22.8M+2% stake844,130 @ $26.98
    46 Traded Oct 13 · filed Oct 13 Form 4 for Ryan Cohen, GME (opens sec.gov) ↗

The biggest buy isn't always the strongest signal. Ryan Cohen's $22.8M GameStop purchase added just 2% to his stake, so it scores lower than a CFO opening a brand-new position. How the score works

How it works

From an insider's trade to your phone, in three steps.

  1. An insider buys

    A CEO, CFO or director buys shares with their own money and must report it to the SEC on Form 4 within two business days.

  2. We read the filing

    Every open-market purchase filed with the SEC is scored and grouped with other insiders buying the same stock in the same 10 days.

  3. You hear about it

    Follow insiders or tickers and get an alert when they buy. Tap any trade for a breakdown from the AI analyst.

Built for following insiders

Everything in the app exists to answer one question: who just bet their own money on their own company?

The alerts inbox listing hidden deals, starting with Onemednet director Thomas Kosasa's $750,000 purchase, traded October 7 but disclosed October 13.

Follow the people, not the noise

Tap Follow next to any CEO, CFO or director, or star a ticker. When they file a new purchase, it lands in your alerts with the trade size, the change in their stake and a link to the filing.

Alert settings with switches for insiders you follow, tickers you follow, hidden deals and cluster buys, with hidden deals switched on.

Catch the hidden deals

Some purchases surface late: reported after the two-business-day deadline, or added weeks later as amended filings. Switch on hidden-deal alerts and you'll hear about each one. What counts as a hidden deal

A score for every trade

Each purchase gets a score out of 100. Most of it comes from who is buying and whether other insiders are buying too.

  • Role: CEO, CFO or chair
  • Other insiders buying
  • Growth in their stake
  • Size of the trade

Late filings, fund managers and buys under pre-arranged trading plans lose points.

An AI analyst on every trade

Tap Why it matters on any purchase for a short breakdown in three parts, then ask follow-up questions.

  • 1Why this buy could matter
  • 2What would weaken the signal
  • 3What to check before you act

It covers both sides and never tells you to buy or sell.

What happened after famous insider buys

Insider buying is a signal, not a guarantee. Three documented cases, three different outcomes. All case studies

Pricing

Planned pricing at launch. Early-access members hear first.

Free $0

  • Insider purchase feed, 24 hours behind
  • Signal score on the top 3 trades
  • Follow 3 insiders and 3 tickers
  • Alerts in the app, on Telegram and by email
  • 3 AI breakdowns a day
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Pro $19/month

  • Live feed, checked every minute
  • Signal score on every trade
  • Follow up to 100 insiders and 100 tickers
  • Hidden-deal and cluster-buy alerts
  • Up to 10 alert rules of your own, tested on past buys
  • 25 AI breakdowns a day, with follow-ups
  • $190 a year, or 7 days free to try
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Questions

Where does the data come from?

From Form 4 filings that company insiders must send to the SEC within two business days of a trade. We keep open-market purchases (transaction code P) of $25,000 or more, and every trade links to the original filing on sec.gov.

Is this investment advice?

No. InsiderBeacon shows what insiders bought and explains why it could matter. The AI analyst covers both sides and never tells you to buy or sell. Insider buys can and do lose money, as our GE case study shows.

What is a hidden deal?

A purchase that surfaces late: reported after the SEC's two-business-day deadline, or added later as an amended filing. These are easy to miss because they appear days or months after the trade. Pro members can get an alert for each one.

How fast will I hear about a new buy?

Pro checks for new filings every minute while the SEC accepts them (6am to 10pm New York time on business days) and alerts you on your phone, on Telegram and by email when a buy matches the insiders, tickers, alert types or your own alert rules. The free plan shows filings and alerts 24 hours later.

How much does it cost?

The free plan stays free. Pro will cost $19 a month or $190 a year, with a 7-day free trial, and you can cancel anytime. Early-access members hear first when it opens.

Still have a question?

Ask us about the data, alerts or pricing. A real person replies within 24 hours.

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