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.

GRPNSell

Groupon, Inc.

Robert J Bass · Director

$52K−4.0%Aug 7
GRPNSell

Groupon, Inc.

Jan Barta · Director and 10% owner

$48.9M−50.0%Dec 22
GRPNSell

Groupon, Inc.

Maple Rock Capital Partners Inc. · 10% owner

$1.7M−7.0%Aug 18
GRPNSell

Groupon, Inc.

Maple Rock Capital Partners Inc. · 10% owner

$6.6M−19.0%Aug 17
GRPNSell

Groupon, Inc.

Rpd Fund Management LLC · 10% owner

$28KMay 27
GRPNSell

Groupon, Inc.

Robert J Bass · Director

$44K−6.0%Jan 3
GRPNSell

Groupon, Inc.

Deborah Wahl · Director

$45K−12.0%Jan 3
GRPNSell

Groupon, Inc.

Peter J Barris · Director

$491K−20.0%Dec 26
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$4.2M−2.0%Dec 13
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$10.5M−4.0%Jun 7
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$10.0M−4.0%Mar 8
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$9.2M−3.0%Dec 7
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$5.7M−2.0%Sep 14
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$6.9M−2.0%Jun 8
GRPNSell

Groupon, Inc.

Brian Stevens · CAO and Treasurer

$69K−6.0%May 25
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$6.9M−2.0%Mar 9
GRPNSell

Groupon, Inc.

Brian Stevens · CAO and Treasurer

$69K−6.0%Mar 9
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$8.6M−2.0%Dec 8
GRPNSell

Groupon, Inc.

Brian Stevens · CAO and Treasurer

$114K−8.0%Nov 28
GRPNSell

Groupon, Inc.

James Sullivan · Chief Product Officer

$132K−7.0%Nov 16
GRPNSell

Groupon, Inc.

James Sullivan · Chief Product Officer

$123K−7.0%Sep 29
GRPNSell

Groupon, Inc.

Eric P Lefkofsky · Director and 10% owner

$6.6M−2.0%Sep 8
GRPNSell

Groupon, Inc.

Brian Stevens · CAO and Treasurer

$40K−4.0%Aug 25
GRPNSell

Groupon, Inc.

James Sullivan · Chief Product Officer

$99K−7.0%Aug 16
GRPNSell

Groupon, Inc.

Peter J Barris · Director

$2.2M−37.0%Aug 10
GRPNSell

Groupon, Inc.

Peter J Barris · Director

$854K−3.0%Jun 13
GRPNSell

Groupon, Inc.

Brian Stevens · CAO and Treasurer

$32K−5.0%Jun 1
GRPNSell

Groupon, Inc.

James Sullivan · Chief Product Officer

$71K−6.0%May 12
GRPNSell

Groupon, Inc.

Dane A Drobny · General Counsel and Secretary

$171K−11.0%May 12
GRPNSell

Groupon, Inc.

Brian Stevens · CAO and Treasurer

$40K−5.0%Mar 15
GRPNSell

Groupon, Inc.

Peter J Barris · Director

$787K−1.0%Mar 2
GRPNSell

Groupon, Inc.

Peter J Barris · Director

$400K−1.0%Mar 1
GRPNSell

Groupon, Inc.

Dane A Drobny · General Counsel and Secretary

$174K−9.0%Feb 24
GRPNSell

Groupon, Inc.

James Sullivan · Chief Product Officer

$70K−6.0%Feb 10
GRPNSell

Groupon, Inc.

Brian Stevens · CAO and Treasurer

$41K−6.0%Nov 30
GRPNSell

Groupon, Inc.

Dane A Drobny · General Counsel and Secretary

$165K−12.0%Nov 14
GRPNSell

Groupon, Inc.

James Sullivan · Chief Product Officer

$76K−6.0%Nov 10
GRPNSell

Groupon, Inc.

Dane A Drobny · General Counsel and Secretary

$169K−9.0%Sep 9
GRPNSell

Groupon, Inc.

Brian Stevens · Chief Accounting Officer

$83K−9.0%Aug 24
GRPNSell

Groupon, Inc.

Peter J Barris · Director

$4.2M−3.0%Aug 15
GRPNSell

Groupon, Inc.

James Sullivan · Chief Product Officer

$116K−6.0%Aug 12
GRPNSell

Groupon, Inc.

Peter J Barris · Director

$2.1M−2.0%Jun 10
GRPNSell

Groupon, Inc.

Brian Stevens · Chief Accounting Officer

$35K−7.0%Jun 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.