SEC Form 4 · STOCK Act

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

ZeroStack Corp.

+206.0%

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

$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.

4 h delay

Buys Sells Buys and sells Any size $100K+$1M+

Pro filters

NOCSell

NORTHROP GRUMMAN CORP /DE/

Mark A Welsh III · Director

$52K−2.1%Aug 4

NOCSell

Northrop Grumman Corp /De/

Mark A Welsh III · Director

$54K−2.0%May 5

NOCSell

Northrop Grumman Corp /De/

Kathryn G Simpson · Corp VP, GC

$650K−100.0%Mar 3

NOCSell

Northrop Grumman Corp /De/

Roshan S Roeder · CVP, Pres Mission Systems

$1.3M−42.0%Mar 2

NOCSell

Northrop Grumman Corp /De/

Kathryn G Simpson · Corp VP, GC

$141K−18.0%Feb 20

NOCSell

Northrop Grumman Corp /De/

Roshan S Roeder · CVP, Pres Mission Systems

$373K−11.0%Feb 20

NOCSell

Northrop Grumman Corp /De/

Michael A Hardesty · Corp VP, Controller, CAO

$108K−6.0%Feb 20

NOCSell

Northrop Grumman Corp /De/

Benjamin R. Davies · CVP, Pres Defense Systems

$1.6M−94.0%Feb 19

NOCSell

Northrop Grumman Corp /De/

Michael A Hardesty · Corp VP, Controller, CAO

$502K−21.0%Feb 19

NOCSell

Northrop Grumman Corp /De/

Kathryn G Simpson · Corp VP, GC

$547K−42.0%Feb 19

NOCSell

Northrop Grumman Corp /De/

Roshan S Roeder · CVP, Pres Mission Systems

$223K−6.0%Feb 19

NOCSell

Northrop Grumman Corp /De/

Michael A Hardesty · Corp VP, Controller, CAO

$550K−20.0%Feb 17

NOCSell

Northrop Grumman Corp /De/

Kathy J Warden · Chair, CEO, Pres

$14.2M−10.0%Feb 10

NOCSell

Northrop Grumman Corp /De/

Kathy J Warden · Chair, CEO, Pres

$6.0M−5.0%Jan 7

NOCSell

Northrop Grumman Corp /De/

Roshan S Roeder · CVP, Pres Mission Systems

$47K−14.0%Dec 11

NOCSell

Northrop Grumman Corp /De/

Mark A Welsh III · Director

$55K−2.0%Nov 25

NOCSell

Northrop Grumman Corp /de/

Benjamin R. Davies · CVP, Pres Defense Systems

$616K−68.0%Nov 13

NOCSell

Northrop Grumman Corp /de/

Thomas H Jones · CVP, Pres Aeronautics Systems

$695K−23.0%Aug 5

NOCSell

Northrop Grumman Corp /de/

Thomas H Jones · CVP, Pres Aeronautics Systems

$1.3M−32.0%Jul 29

NOCSell

Northrop Grumman Corp /de/

Roshan S Roeder · CVP, Pres Defense Systems

$429K−54.0%May 22

NOCSell

Northrop Grumman Corp /de/

Mark A Caylor · CVP, Pres, Mission Systems

$375K−5.0%Feb 23

NOCSell

Northrop Grumman Corp /de/

Kathryn G Simpson · Corp VP, GC

$162K−18.0%Feb 23

NOCSell

Northrop Grumman Corp /de/

Michael A Hardesty · Corp VP, Controller, CAO

$95K−6.0%Feb 23

NOCSell

Northrop Grumman Corp /de/

Mark A Caylor · CVP, Pres, Mission Systems

$1.2M−14.0%Feb 21

NOCSell

Northrop Grumman Corp /de/

Kathryn G Simpson · Corp VP, GC

$896K−50.0%Feb 21

NOCSell

Northrop Grumman Corp /de/

Roshan S Roeder · CVP, Pres Defense Systems

$111K−13.0%Feb 21

NOCSell

Northrop Grumman Corp /de/

Michael A Hardesty · Corp VP, Controller, CAO

$430K−22.0%Feb 21

NOCSell

Northrop Grumman Corp /de/

Mark A Caylor · CVP, Pres, Mission Systems

$789K−11.0%Nov 8

NOCSell

Northrop Grumman Corp /de/

Roshan S Roeder · CVP, Pres Defense Systems

$468K−50.0%Oct 11

NOCSell

Northrop Grumman Corp /de/

Mark A Caylor · CVP, Pres, Mission Systems

$731K−10.0%Aug 8

NOCSell

Northrop Grumman Corp /de/

David T Perry · CVP Chief Global Bus Off

$1.9M−30.0%Mar 8

NOCSell

Northrop Grumman Corp /de/

Mark A Caylor · CVP, Pres, Mission Systems

$1.3M−15.0%Mar 7

NOCSell

Northrop Grumman Corp /de/

Lucy C Ryan · Corp VP, Communications

$255K−12.0%Mar 6

NOCSell

Northrop Grumman Corp /de/

Michael A Hardesty · Corp VP, Controller, CAO

$336K−19.0%Mar 1

NOCSell

Northrop Grumman Corp /de/

Sheila C. Cheston · Corp. VP, GC

$391K−3.0%Feb 23

NOCSell

Northrop Grumman Corp /de/

Thomas H Jones · CVP, Pres Aeronautics Systems

$346K−22.0%Feb 23

NOCSell

Northrop Grumman Corp /de/

Michael A Hardesty · Corp VP, Controller, CAO

$99K−5.0%Feb 23

NOCSell

Northrop Grumman Corp /de/

Thomas H Jones · CVP, Pres Aeronautics Systems

$205K−12.0%Feb 21

NOCSell

Northrop Grumman Corp /de/

Mary D Petryszyn · Corporate VP

$399K−10.0%Feb 17

NOCSell

Northrop Grumman Corp /de/

Thomas H Jones · CVP, Pres Aeronautics Systems

$29K−2.0%Feb 17

NOCSell

Northrop Grumman Corp /de/

Michael A Hardesty · Corp VP, Controller, CAO

$95K−7.0%Feb 17

NOCSell

Northrop Grumman Corp /de/

Sheila C. Cheston · Corp. VP, GC

$1.2M−10.0%Feb 15

NOCSell

Northrop Grumman Corp /de/

Michael A Hardesty · Corp VP, Controller, CAO

$551K−30.0%Feb 15

NOCSell

Northrop Grumman Corp /de/

Mark A Caylor · CVP, Pres, Mission Systems

$552K−7.0%Nov 8

NOCSell

Northrop Grumman Corp /de/

Thomas H Jones · CVP, Pres Aeronautics Systems

$88K−6.0%Nov 8

NOCSell

Northrop Grumman Corp /de/

Sheila C. Cheston · Corp. VP, GC

$1.9M−14.0%Aug 11

NOCSell

Northrop Grumman Corp /de/

Thomas L Wilson Jr · CVP, Pres Space Systems

$281K−22.0%Aug 8

NOCSell

Northrop Grumman Corp /de/

Kathy J Warden · Chair, CEO, Pres

$4.8M−7.0%Aug 8

NOCSell

Northrop Grumman Corp /de/

Mark A Caylor · CVP, Pres, Mission Systems

$1.8M−19.0%Mar 7

NOCSell

Northrop Grumman Corp /de/

Mary D Petryszyn · CVP, Pres, Defense Systems

$259K−8.0%Mar 2

Older filings

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.