ALDX
Brady Todd C, ALDX's CEO, spent $418.5K of their own money on 250,000 shares at $2, growing their stake 17%.
+$418.5K
250,000 sh @ $2
ALDX
Aldeyra Therapeutics, Inc.
SEC CIK 1341235
$1.71
−68.4% · 90 days
90-day buys
$523.6K
3 open-market
90-day sells
$0
0 open-market
Net insider flow
+$523.6K
Net buying
Filings shown
9
Most recent
Advertisement
At a glance
Over the last 90 days, insiders at ALDX have bought a net $523.6K of stock (3 open-market buys vs 0 sells).
Largest recent trade: Perceptive Advisors Llc sold $4.83M of ALDX, trimming their stake 37%.
Insider transaction history
Form 4 filings for ALDX, newest firstALDX
Douglas Richard, ALDX's Director, spent $98K of their own money on 70,000 shares at $1, growing their stake 56%.
+$98K
70,000 sh @ $1
ALDX
Alfieri Michael, ALDX's Principal Financi…, spent $7.1K of their own money on 5,000 shares at $1, growing their stake 200%.
+$7.1K
5,000 sh @ $1
ALDX
Alfieri Michael, ALDX's Principal Financi…, spent $13.3K of their own money on 2,500 shares at $5, opening a brand-new position.
+$13.3K
2,500 sh @ $5
ALDX
−$113.7K
22,073 sh @ $5
Advertisement
ALDX
−$4.83M
3.4M sh @ $1
ALDX
−$76K
16,041 sh @ $5
ALDX
Miller-rich Nancy, ALDX's Director, spent $5.2K of their own money on 509 shares at $10, growing their stake 123%.
+$5.2K
509 sh @ $10
ALDX
Miller-rich Nancy, ALDX's Director, spent $5.3K of their own money on 413 shares at $13, opening a brand-new position.
+$5.3K
413 sh @ $13
Advertisement
About ALDX insider activity
This page tracks every recent Form 4 filed for Aldeyra Therapeutics, Inc. with the U.S. Securities and Exchange Commission. Form 4 is the disclosure that company insiders — officers, directors, and holders of more than 10% of the stock — must file within two business days of buying or selling shares.
The summary above nets open-market purchases against open-market sales over the trailing 90 days. Open-market trades (codes P and S) tend to carry the most signal because they reflect a deliberate choice to put money in or take it out, as opposed to routine grants, option exercises, or tax-withholding events. Use the badges on each row to tell them apart, and always confirm details against the original filing before drawing conclusions.
Frequently asked questions
How often is ALDX insider data updated?
Continuously. We read from SEC EDGAR, so new Form 4 filings for Aldeyra Therapeutics, Inc. usually appear here within minutes of being accepted by the SEC.
What does "net insider flow" mean?
It is the total dollar value of open-market insider purchases minus open-market sales over the last 90 days. A positive number (green) means insiders bought more than they sold; a negative number (red) means the reverse.
Why do some rows show grants or option exercises instead of buys?
Insiders receive stock through compensation as well as buying it outright. Form 4 captures all of these. We label each transaction by its SEC code so you can focus on open-market activity if you prefer.
Is this investment advice?
No. InsiderSource presents public filing data for informational purposes only. Insider activity is one of many factors to consider and is never a recommendation to buy or sell.