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+

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MLMBuy

Martin Marietta Materials Inc

Michael J Petro · SVP - Strategy, Development

$250K+7.0%Mar 5

MLMSell

Martin Marietta Materials Inc

Roselyn R Bar · EVP, GC, Secy

$6.0M−14.0%Mar 15

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$12.1M−9.0%Mar 6

MLMSell

Martin Marietta Materials Inc

Sue W Cole · Director

$937K−7.0%Feb 20

MLMSell

Martin Marietta Materials Inc

Craig M Latorre · SVP and CHRO

$835K−17.0%Aug 22

MLMSell

Martin Marietta Materials Inc

Craig M Latorre · SVP and CHRO

$224K−4.0%Aug 1

MLMSell

Martin Marietta Materials Inc

Sue W Cole · Director

$599K−6.0%Nov 18

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$6.7M−11.0%Mar 11

MLMSell

Martin Marietta Materials Inc

Roselyn R Bar · EVP, GC, Secy

$2.7M−16.0%Nov 24

MLMSell

Martin Marietta Materials Inc

Sue W Cole · Director

$254K−4.0%Sep 10

MLMSell

Martin Marietta Materials Inc

Stephen P Zelnak Jr · Director

$4.1M−79.0%Jul 10

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$1.2M−4.0%May 22

MLMBuy

Martin Marietta Materials Inc

John J Koraleski · Director

$164K+10.0%May 15

MLMBuy

Martin Marietta Materials Inc

John J Koraleski · Director

$184K+12.0%May 6

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$1.2M−3.0%Dec 17

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$1.9M−5.0%Aug 30

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$2.7M−7.0%Aug 2

MLMSell

Martin Marietta Materials Inc

Roselyn R Bar · EVP, GC, Secy

$697K−5.0%Aug 2

MLMSell

Martin Marietta Materials Inc

Laree E Perez · Director

$191K−6.0%Jun 10

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$3.2M−9.0%May 7

MLMSell

Martin Marietta Materials Inc

Donald A. Mccunniff · SVP - HR

$701K−20.0%May 7

MLMSell

Martin Marietta Materials Inc

Sue W Cole · Director

$293K−6.0%Mar 6

MLMSell

Martin Marietta Materials Inc

Donald A. Mccunniff · SVP - HR

$422K−14.0%Feb 28

MLMBuy

Martin Marietta Materials Inc

John J Koraleski · Director

$174K+20.0%Dec 18

MLMSell

Martin Marietta Materials Inc

Donald A. Mccunniff · SVP - HR

$274K−10.0%Nov 13

MLMSell

Martin Marietta Materials Inc

Donald A. Mccunniff · SVP - HR

$460K−15.0%Aug 24

MLMBuy

Martin Marietta Materials Inc

Stephen P Zelnak Jr · Director

$710K+19.0%Aug 1

MLMBuy

Martin Marietta Materials Inc

John J Koraleski · Director

$499K+102.0%Jul 30

MLMSell

Martin Marietta Materials Inc

Donald A. Mccunniff · SVP - HR

$975K−22.0%Jun 13

MLMSell

Martin Marietta Materials Inc

Roselyn R Bar · EVP, GC, Secy

$1.3M−10.0%May 14

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$1.8M−6.0%May 11

MLMSell

Martin Marietta Materials Inc

Michael J Quillen · Director

$637K−15.0%May 11

MLMSell

Martin Marietta Materials Inc

Sue W Cole · Director

$630K−11.0%Mar 13

MLMSell

Martin Marietta Materials Inc

Laree E Perez · Director

$642K−18.0%Feb 15

MLMBuy

Martin Marietta Materials Inc

John J Koraleski · Director

$99K+53.0%Aug 18

MLMSell

Martin Marietta Materials Inc

Dana F. Guzzo · SVP, Controller, CAO

$198K−4.0%May 5

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$2.5M−7.0%May 5

MLMSell

Martin Marietta Materials Inc

Anne H Lloyd · EVP and CFO

$1.5M−10.0%May 5

MLMSell

Martin Marietta Materials Inc

Donald A. Mccunniff · SVP - HR

$334K−7.0%May 4

MLMSell

Martin Marietta Materials Inc

Sue W Cole · Director

$636K−11.0%Mar 14

MLMSell

Martin Marietta Materials Inc

William E Mcdonald · Director

$1.3M−25.0%Feb 21

MLMSell

Martin Marietta Materials Inc

Laree E Perez · Director

$657K−18.0%Feb 21

MLMSell

Martin Marietta Materials Inc

Donald A. Mccunniff · SVP - HR

$344K−9.0%Dec 12

MLMSell

Martin Marietta Materials Inc

Anne H Lloyd · EVP and CFO

$114K−1.0%Dec 12

MLMSell

Martin Marietta Materials Inc

Roselyn R Bar · EVP, GC, Secy

$528K−5.0%Nov 14

MLMSell

Martin Marietta Materials Inc

Dana F. Guzzo · SVP, Controller, CAO

$543K−13.0%Nov 10

MLMSell

Martin Marietta Materials Inc

Anne H Lloyd · EVP and CFO

$658K−5.0%Nov 10

MLMSell

Martin Marietta Materials Inc

Daniel L. Grant · SVP - Strategy, Development

$233K−8.0%Nov 10

MLMSell

Martin Marietta Materials Inc

C Howard Nye · Chair, President and CEO

$2.0M−7.0%Nov 10

MLMSell

Martin Marietta Materials Inc

Roselyn R Bar · EVP, GC, Secy

$1.2M−12.0%Aug 30

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?

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