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.

MKLBuy

Markel Group Inc.

Diane Leopold · Director

$269K+6.0%May 8
MKLBuy

Markel Group Inc.

A. Lynne Puckett · Director

$102K+3.0%May 5
MKLBuy

Markel Group Inc.

Lawrence A Cunningham · Director

$46K+3.0%May 23
MKLBuy

Markel Group Inc.

Thomas Sinnickson Gayner · CEO

$201KFeb 7
MKLBuy

Markel Group Inc.

Thomas Sinnickson Gayner · CEO

$155KNov 5
MKLBuy

Markel Group Inc.

Lawrence A Cunningham · Director

$46K+4.0%Aug 5
MKLBuy

Markel Group Inc.

A. Lynne Puckett · Director

$101K+5.0%Feb 6
MKLBuy

Markel Group Inc.

Lawrence A Cunningham · Director

$42K+6.0%Feb 6
MKLBuy

Markel Group Inc.

Thomas Sinnickson Gayner · CEO

$141KFeb 5
MKLBuy

Markel Group Inc.

Thomas Sinnickson Gayner · CEO

$131KNov 6
MKLBuy

Markel Group Inc.

A. Lynne Puckett · Director

$100K+6.0%Nov 6
MKLBuy

Markel Group Inc.

Mark Besca · Director

$66K+7.0%Nov 6
MKLBuy

Markel Group Inc.

Lawrence A Cunningham · Director

$29K+4.0%Sep 8
MKLBuy

Markel Group Inc.

Thomas Sinnickson Gayner · CEO

$148KAug 7
MKLBuy

Markel Group Inc.

K Bruce Connell · Director

$97K+5.0%Jul 14
MKLBuy

Markel Corp

Morgan E. Housel · Director

$25K+6.0%May 5
MKLBuy

Markel Corp

Thomas Sinnickson Gayner · CEO

$68KMay 3
MKLBuy

Markel Corp

A. Lynne Puckett · Director

$101K+8.0%May 2
MKLBuy

Markel Corp

Diane Leopold · Director

$201K+8.0%Feb 17
MKLBuy

Markel Corp

Greta J Harris · Director

$531K+169.0%Feb 17
MKLBuy

Markel Corp

Thomas Sinnickson Gayner · CEO

$33KFeb 6
MKLBuy

Markel Corp

A. Lynne Puckett · Director

$101K+9.0%Aug 24
MKLBuy

Markel Corp

A. Lynne Puckett · Director

$100K+10.0%Aug 5
MKLBuy

Markel Corp

Thomas Sinnickson Gayner · Co-CEO

$60KAug 5
MKLBuy

Markel Corp

Anthony F Markel · Director

$104KMay 12
MKLBuy

Markel Corp

Thomas Sinnickson Gayner · Co-CEO

$65KMay 9
MKLBuy

Markel Corp

A. Lynne Puckett · Director

$103K+15.0%May 9
MKLBuy

Markel Corp

Thomas Sinnickson Gayner · Co-CEO

$31KNov 23
MKLBuy

Markel Corp

A. Lynne Puckett · Director

$98K+32.0%May 7
MKLBuy

Markel Corp

A. Lynne Puckett · Director

$98K+55.0%Feb 19
MKLBuy

Markel Corp

Debora J Wilson · Director

$832K+26.0%May 4
MKLBuy

Markel Corp

Lemuel E Lewis · Director

$104K+2.0%May 15
MKLBuy

Markel Corp

Lemuel E Lewis · Director

$101K+2.0%Mar 18
MKLBuy

Markel Corp

K Bruce Connell · Director

$194K+9.0%Mar 11
MKLBuy

Markel Corp

Lemuel E Lewis · Director

$274K+5.0%Nov 16
MKLBuy

Markel Corp

Michael Jay Schewel · Director

$251K+4.0%Feb 26
MKLBuy

Markel Corp

Lemuel E Lewis · Director

$1.1M+23.0%Nov 13

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.