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Guy Gentile
Guy Gentile: The Official Record
Guide

How to Track Stock Dilution in 5 Steps

A working EDGAR routine for spotting dilution before the print: check shelf status, read a 424B5 cover in 60 seconds, score the deal window, and trade the print with defined risk. Written by the operator who designed the Stocks Leak dilution radar.

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Guy's PositionVerified by Public Record

Dilution Is a Scheduled Event, Not a Surprise

Every registered stock offering in the United States is on EDGAR before it hits the tape. The initial registration, the effective shelf, the sales agreement, and the individual takedown are all public filings — the S-1, the S-3, the 8-K, and the 424B5. What looks like a sudden overnight dilution print is almost always a filing that was visible for weeks to anyone watching the right feed.

The traders who consistently make money around dilution events are not the ones who react fastest to the print. They are the ones who mapped the shelf before the runup, watched EDGAR during the session, and had a plan for the 4:05pm 424B5 before the ticker started rallying. This guide is the framework for building that map.

Workflow

The 5-Step Dilution Tracking Workflow

Run this in order on any microcap that is moving. It takes about ten minutes per ticker the first time and under two minutes once the shelf map exists.

  1. Step 1

    Pull the ticker's filing history on EDGAR

    Open EDGAR full-text search, enter the ticker or CIK, and filter the filing type to S-1, S-3, 424B5, and 8-K. Sort newest first. You are answering one question: has this company registered shares it has not yet sold?

    Example: a $40M-market-cap issuer shows an S-3 filed 14 months ago and one 424B5 six months ago. That means a shelf exists and has already been used once — the mechanic is proven and management is willing.

  2. Step 2

    Confirm the shelf is effective and measure remaining capacity

    An S-3 only matters once the SEC declares it effective (look for the EFFECT notice or the first 424B takedown). Take the registered dollar amount from the S-3 cover, subtract every prior 424B takedown, and you have remaining capacity.

    Example: $100M registered on the S-3, $22M drawn across two prior supplements, leaves roughly $78M of live capacity — more than the entire market cap in many microcaps.

  3. Step 3

    Identify the sales agent and the pricing mechanic

    The 424B5 cover names the agent and states whether shares are sold at a fixed price (an underwritten deal, usually at a discount) or at the market through an ATM. Fixed price means a one-time gap; an ATM means continuous supply into every rally.

    Example: 'shares may be offered from time to time through our sales agent' plus 'at prevailing market prices' is ATM language — expect supply to reappear on every subsequent spike, not just tomorrow's open.

  4. Step 4

    Score the deal window against price action

    Dilution prices into strength. Tag a ticker as in-window when three conditions stack: an effective shelf with capacity, a move of roughly 40% or more over one to five sessions, and a close near the high on volume that is a multiple of the 30-day average.

    Example: a low-float name up 68% in three sessions on 20x average volume, closing at the high, with $78M of open shelf, is the archetypal pre-deal setup investment banks pitch against.

  5. Step 5

    Automate the watch, then execute a written plan

    Subscribe to EDGAR's RSS feed for each in-window ticker so any new 424B5 or 8-K hits you within minutes, and check the tape after 4:00pm — most supplements land in the after-market. Then run one of the five playbooks below, with the entry, stop, and size written down before the filing appears.

    Example: a 4:05pm Friday 424B5 on an in-window ticker triggers the post-print gap playbook — short the first bounce into the opening range, risk defined at the pre-market high.

Playbooks

Five Repeatable Dilution Playbooks

None of these are secrets. They are the workflows the microcap desk has used for a decade, in the open, on public data.

01

The Shelf Map

Verified by Document

Every ticker on a serious watchlist should be tagged with three fields: is an S-3 effective, what is the remaining shelf capacity, and who is the named sales agent. A stock with an empty shelf can't dilute today; a stock with $75M open on an ATM through Cantor can dilute at 9:30. This is the pre-work that turns dilution from a surprise into a scheduled event.

Pull from
  • ·EDGAR: S-3 registration
  • ·EDGAR: 424B5 prospectus supplement
  • ·Company 10-K/10-Q ATM disclosures
02

The Runup Fade

Guy's Position

A low-float microcap up 40%+ over 1–5 sessions with an effective shelf is in the deal window. Investment banks pitch offerings into strength; management signs when the chart is loud enough. The trade is a starter short into the close of a screaming day, sized to survive a squeeze, exited on the 424B5 print or on a technical break. The edge is knowing the deal is more likely than the crowd thinks.

Pull from
  • ·EDGAR shelf status
  • ·Level 2 / imbalance data
  • ·Historical deal price vs. runup ratio
03

The Post-Print Gap

Verified by Document

A 424B5 that prints in the after-market almost always produces a gap-down open the next session as the sales agent begins working supply. The trade is short the first bounce into the 5-minute opening range, cover into the first VWAP touch, and reassess. It is a mechanical, repeatable pattern with a defined risk (the pre-market high).

Pull from
  • ·EDGAR after-market filing timestamps
  • ·Pre-market tape
  • ·Historical gap-fill statistics
04

The Exhaustion Buy

Guy's Position

Once the ATM is visibly done — deal closes announced, volume decays, tape thins — the stock often bases and can be bought back. The tell is a company 8-K confirming completion of the offering, or a materially reduced Form 4 / Form 144 pattern from the sales agent. This is the least crowded side of the dilution trade and requires the most patience.

Pull from
  • ·EDGAR 8-K offering completion
  • ·Volume decay analysis
  • ·Insider Form 4 activity
05

What Does Not Work

Guy's Position

Shorting every microcap that rallies 30% is a broken system — plenty run without an effective shelf. Assuming a deal must price at a discount to the current bid ignores how ATMs mechanically work. Trading on a 'tip' about a pending offering is insider trading. Every playbook above starts and ends with what is on EDGAR.

Pull from
  • ·FINRA enforcement actions
  • ·SEC Rule 10b5-1
  • ·EDGAR filing timeline
Filing Reference

Which Filing Means What

S-1

Initial Registration

First-time registration of securities for public sale. Used for IPOs and by companies that are not yet S-3 eligible. Long-form document; the deal cannot price until the SEC declares it effective. Watch for pricing amendments and the effectiveness date.

S-3

Shelf Registration

Short-form registration for seasoned issuers that meet the S-3 eligibility bar (roughly $75M+ float and timely reporting). Registers a dollar amount that can be drawn down over three years using 424B supplements. An effective S-3 is a loaded gun.

424B5

Prospectus Supplement

The actual dilution print. Filed by a company drawing down from an existing S-3 shelf. Cover page shows deal size, sales agent, and pricing mechanic. This is the filing that lands at 4:05pm on Fridays.

8-K

Sales Agreement / Completion

Discloses a new ATM sales agreement (Item 1.01) or the completion of an offering (Item 8.01). The 8-K is often the earliest public signal that a shelf is about to be worked; it is filed within four business days of the agreement.

Form 4

Insider Transactions

Not a dilution filing directly, but a sales-agent pattern on Form 4 (through the issuer's designated broker) can confirm ATM activity is live. Cross-reference against 10-Q disclosed proceeds.

This is not investment advice

Every playbook above assumes the reader is a sized, risk-aware trader operating on public data. Dilution trading has permanent-loss risk on the wrong side and requires the same framework as any other short-biased strategy. See the due-diligence hub for the broader framework, and the Stocks Leak page for the tool that automates the EDGAR-shelf-scanner workflow.

I'm not a lawyer.

FAQ

Stock Dilution Tracker FAQ

Built the Radar. Traded the Prints.

Stocks Leak was designed to run this exact workflow — EDGAR feed, shelf-status map, low-float scanner, deal-window alerts — because that is the workflow that turns dilution from a random hit to a repeatable trade.

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