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.

DMLPBuy

DORCHESTER MINERALS, L.P.

Leslie A Moriyama · Chief Financial Officer

$147K+5.3%Aug 19
DMLPBuy

DORCHESTER MINERALS, L.P.

DORCHESTER MINERALS OPERATING LP · Entity Under Common Control

$207K+12.0%Jun 2
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$212K+14.0%May 22
DMLPBuy

Dorchester Minerals, L.P.

Bradley J Ehrman · CEO

$107K+3.0%May 12
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$505K+57.0%Feb 13
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$334K+75.0%Dec 23
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$445KDec 19
DMLPBuy

Dorchester Minerals, L.P.

Frank Damon Box · Director

$110K+125.0%Dec 3
DMLPBuy

Dorchester Minerals, L.P.

Robert C Vaughn · Director

$99K+1.0%Nov 28
DMLPBuy

Dorchester Minerals, L.P.

Leslie A Moriyama · CFO

$65K+4.0%Nov 28
DMLPBuy

Dorchester Minerals, L.P.

Bradley J Ehrman · CEO

$75K+3.0%Nov 26
DMLPBuy

Dorchester Minerals, L.P.

Frank Damon Box · Director

$102KSep 8
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$288K+21.0%May 1
DMLPBuy

Dorchester Minerals, L.P.

Bradley J Ehrman · CEO

$100K+3.0%Mar 4
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$439K+42.0%Feb 4
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$32K+3.0%Dec 30
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$341K+47.0%Dec 26
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$725KDec 12
DMLPBuy

Dorchester Minerals, L.P.

Leslie A Moriyama · CFO

$415K+18.0%Dec 5
DMLPBuy

Dorchester Minerals, L.P.

Bradley J Ehrman · CEO

$497K+13.0%Dec 5
DMLPBuy

Dorchester Minerals, L.P.

Leslie A Moriyama · CFO

$105K+5.0%Nov 15
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$93K+5.0%Jul 23
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$158K+8.0%Jul 18
DMLPBuy

Dorchester Minerals, L.P.

Bradley J Ehrman · CEO

$83K+2.0%Jun 18
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$317K+21.0%May 23
DMLPBuy

Dorchester Minerals, L.P.

Leslie A Moriyama · CFO

$77K+4.0%May 20
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$39K+3.0%Feb 5
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$158K+12.0%Feb 1
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$251K+22.0%Jan 29
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$157K+16.0%Dec 27
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$271K+40.0%Dec 22
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$670KDec 21
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$146K+14.0%Jun 15
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$285K+40.0%Jun 1
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$112K+19.0%Mar 23
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$341K+110.0%Mar 6
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$421K+52.0%Dec 13
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$572K+223.0%Dec 8
DMLPBuy

Dorchester Minerals, L.P.

Bradley J Ehrman · COO

$30K+1.0%Mar 10
DMLPBuy

Dorchester Minerals, L.P.

Leslie A Moriyama · CFO

$61K+7.0%Mar 10
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$122K+20.0%Nov 8
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$77K+15.0%Nov 3
DMLPBuy

Dorchester Minerals, L.P.

Leslie A Moriyama · CFO

$33K+7.0%Aug 20
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$56K+14.0%Aug 16
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$71K+36.0%Apr 27
DMLPBuy

Dorchester Minerals, L.P.

Dorchester Minerals Operating LP · Entity Under Common Control

$128K+203.0%Apr 21
DMLPBuy

Dorchester Minerals, L.P.

H C Allen Jr · Director

$54K+1.0%Mar 9
DMLPBuy

Dorchester Minerals, L.P.

H C Allen Jr · Director

$87K+2.0%Mar 5
DMLPBuy

Dorchester Minerals, L.P.

Robert C Vaughn · Director

$189K+2.0%Mar 4
DMLPBuy

Dorchester Minerals, L.P.

Bradley J Ehrman · COO

$33K+3.0%Mar 3

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.