SEC Form 4 · STOCK Act

Insider buys that paid off for the people who copied them.

$ZSTK

ZeroStack Corp.

+206.0%

Michael Heinrich, Executive Chair, bought $3.5M. Filed Jul 20, 6:31 PM ET.

COPIED JUL 21

$1,000 copied at the first price after the filing (Jul 21 open, $1.66) was $3,060 30 trading days later.

Example. Of 339 buys of $100K or more filed Jun 29 to Sep 11, the median lost 5.3% and 67.8% lost money over the same 30 trading days. Not investment advice.

Officers and directors must report their own stock purchases within two business days. We list every one, largest first, with what copying it would have returned.

A free account keeps a watchlist. No password: we email you a link.

MXBuy

MAGNACHIP SEMICONDUCTOR Corp

Chae Lee · Chief Executive Officer

$318K+34.6%Sep 25
MXBuy

Magnachip Semiconductor Corp

Gilbert E Nathan · Director

$63K+6.0%Mar 17
MXBuy

Magnachip Semiconductor Corp

Gilbert E Nathan · Director

$105K+12.0%Mar 16
MXBuy

Magnachip Semiconductor Corp

Shin Young Park · Insider

$29K+4.0%Aug 26
MXBuy

Magnachip Semiconductor Corp

Camillo Martino · Insider

$85K+11.0%Aug 26
MXBuy

Magnachip Semiconductor Corp

Ilbok Lee · Director

$77K+10.0%Mar 18
MXBuy

Magnachip Semiconductor Corp

Camillo Martino · Director

$73K+10.0%Mar 17
MXBuy

Magnachip Semiconductor Corp

Gilbert E Nathan · Director

$74K+8.0%Mar 17
MXBuy

Magnachip Semiconductor Corp

Gilbert E Nathan · Director

$68K+5.0%Dec 12
MXBuy

Magnachip Semiconductor Corp

Camillo Martino · Director

$68K+7.0%Dec 12
MXBuy

Magnachip Semiconductor Corp

Gilbert E Nathan · Director

$84K+6.0%Aug 17
MXBuy

Magnachip Semiconductor Corp

Young-Joon Kim · Insider

$91K+2.0%Aug 16
MXBuy

Magnachip Semiconductor Corp

Young-Joon Kim · Insider

$95K+2.0%Feb 28
MXBuy

Magnachip Semiconductor Corp

Theodore S Kim · Insider

$55K+2.0%Feb 23
MXBuy

Magnachip Semiconductor Corp

Ilbok Lee · Director

$59K+5.0%Aug 5
MXBuy

Magnachip Semiconductor Corp

Young-Joon Kim · Insider

$115K+4.0%Aug 5
MXBuy

Magnachip Semiconductor Corp

Brigade Leveraged Capital Structures Fund Ltd. · 10% owner

$3.5M+17.0%Oct 24
MXBuy

Magnachip Semiconductor Corp

Brigade Capital Management, LP · 10% owner

$98KDec 26
MXBuy

Magnachip Semiconductor Corp

Brigade Capital Management, LP · 10% owner

$3.6M+5.0%Dec 17
MXBuy

Magnachip Semiconductor Corp

Brigade Capital Management, LP · 10% owner

$185K+1.0%Aug 14
MXBuy

Magnachip Semiconductor Corp

Brigade Capital Management, LP · 10% owner

$221K+1.0%Aug 7
MXBuy

Magnachip Semiconductor Corp

Brigade Capital Management, LP · 10% owner

$1.3M+4.0%Aug 3
MXBuy

Magnachip Semiconductor Corp

Randal T Klein · Director

$54K+99.0%May 3
MXBuy

Magnachip Semiconductor Corp

Tavakoli Nader · Director

$136K+15.0%Feb 15
MXBuy

Magnachip Semiconductor Corp

Theodore S Kim · Insider

$45K+12.0%Feb 14
MXBuy

Magnachip Semiconductor Corp

Tavakoli Nader · Director

$189K+25.0%Feb 14
MXBuy

Magnachip Semiconductor Corp

Jonathan W Kim · Insider

$73K+15.0%Feb 14
MXBuy

Magnachip Semiconductor Corp

Melvin L Keating · Director

$32K+18.0%Feb 14
MXBuy

Magnachip Semiconductor Corp

Young-Joon Kim · Director and CEO

$81K+15.0%Feb 14
MXBuy

Magnachip Semiconductor Corp

Camillo Martino · Director

$103K+46.0%Aug 15
MXBuy

Magnachip Semiconductor Corp

Tavakoli Nader · Director

$417K+94.0%Aug 14

Filings come from SEC EDGAR within a minute of the SEC accepting them. Without Pro, each one unlocks 4 hours later. Not investment advice.

Questions

Where does the data come from?

Corporate insider trades come straight from SEC Form 4 filings, pulled from EDGAR within a minute of each filing. Congress trades come from STOCK Act disclosures. All of it is public and free to browse here, and Pro sees the newest filings first.

How often is it updated?

Every minute from 6 AM to 10 PM New York time on weekdays, the hours the SEC accepts filings. Pro sees each filing as it lands. Without Pro, a filing unlocks 4 hours after the SEC accepts it.

Is following insider trades legal?

Yes. Insiders are legally required to disclose their trades within a few days. Acting on those public disclosures is completely legal. Trading on private, non-public information is illegal, but that's a different thing.

What does the iPhone app add?

We're building an iPhone app that alerts you to new filings and, if you choose, copies a buy into your own brokerage after you approve it. It isn't out yet, and the waitlist is free.