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.

MNKBuy

Mallinckrodt Plc

James R Sulat · Director

$254K+57.0%Mar 16
MNKBuy

Mallinckrodt Plc

Paul Bisaro · Director

$42K+7.0%Mar 16
MNKBuy

Mallinckrodt Plc

Sigurdur O Olafsson · President and CEO

$25K+1.0%Mar 15
MNKBuy

Mallinckrodt Plc

Bryan M. Reasons · EVP and CFO

$48K+43.0%Jun 7
MNKBuy

Mallinckrodt Plc

Dr Kneeland Youngblood · Director

$100K+30.0%Nov 30
MNKBuy

Mallinckrodt Plc

Ian J Watkins · CHRO

$42K+8.0%Nov 15
MNKBuy

Mallinckrodt Plc

Hugh M. O'Neill · EVP, Pres, ARD

$196K+29.0%Nov 15
MNKBuy

Mallinckrodt Plc

Diane H. Gulyas · Director

$32K+8.0%Nov 13
MNKBuy

Mallinckrodt Plc

Melvin D Booth · Director

$218K+31.0%Nov 13
MNKBuy

Mallinckrodt Plc

Joseph A Zaccagnino · Director

$107K+24.0%Nov 13
MNKBuy

Mallinckrodt Plc

Steven J. Romano · EVP, Chief Sci. Ofcr

$44K+9.0%Nov 13
MNKBuy

Mallinckrodt Plc

J Martin Carroll · Director

$102K+27.0%Nov 13
MNKBuy

Mallinckrodt Plc

Mark Trudeau · President and CEO

$111K+2.0%Nov 13
MNKBuy

Mallinckrodt Plc

David Y Norton · Director

$44K+36.0%Nov 13
MNKBuy

Mallinckrodt Plc

Michael-Bryant Hicks · General Counsel

$164K+89.0%Nov 13
MNKBuy

Mallinckrodt Plc

David R Carlucci · Director

$218K+62.0%Nov 13
MNKBuy

Mallinckrodt Plc

Meredith B Fischer · Chief Public Affairs Officer

$51K+5.0%Sep 1
MNKBuy

Mallinckrodt Plc

Coleman N Lannum III · SVP Investor Strategy, IRO

$118K+9.0%Jun 12
MNKBuy

Mallinckrodt Plc

Hugh M. O'Neill · EVP, Pres, ARD

$40K+3.0%Jun 12
MNKBuy

Mallinckrodt Plc

Mark Trudeau · President and CEO

$40KJun 12
MNKBuy

Mallinckrodt Plc

Ronald K. Lloyd · EVP, Pres, Hospital

$206K+39.0%Jun 12
MNKBuy

Mallinckrodt Plc

Steven J. Romano · EVP, Chief Sci. Ofcr

$40K+5.0%Jun 12
MNKBuy

Mallinckrodt Plc

Coleman N Lannum III · SVP Investor Strategy, IRO

$58K+4.0%Jun 5
MNKBuy

Mallinckrodt Plc

Coleman N Lannum III · SVP Investor Strategy, IRO

$91K+7.0%May 15
MNKBuy

Mallinckrodt Plc

Matthew K Harbaugh · EVP and CFO

$30K+1.0%Mar 14
MNKBuy

Mallinckrodt Plc

Matthew K Harbaugh · SVP and CFO

$30K+1.0%May 11
MNKBuy

Mallinckrodt Plc

Hugh M. O'Neill · SVP, Pres, ARD

$101K+12.0%May 10
MNKBuy

Mallinckrodt Plc

Steven J. Romano · SVP, Chief Scientific Ofcr

$50K+11.0%May 9
MNKBuy

Mallinckrodt Plc

Mark Trudeau · President and CEO

$56K+1.0%May 9
MNKBuy

Mallinckrodt Plc

Coleman N Lannum III · Sr.VP, Investor Strategy, IRO

$163K+13.0%Mar 8
MNKBuy

Mallinckrodt Plc

Meredith B Fischer · SVP, Comm, Public Affairs

$98K+8.0%Mar 1
MNKBuy

Mallinckrodt Plc

Coleman N Lannum III · Sr.VP, Investor Strategy, IRO

$36K+3.0%Feb 16
MNKBuy

Mallinckrodt Plc

Coleman N Lannum III · Sr.VP, Investor Strategy, IRO

$81K+7.0%Feb 11
MNKBuy

Mallinckrodt Plc

Matthew K Harbaugh · SVP and CFO

$82K+2.0%Feb 10
MNKBuy

Mallinckrodt Plc

Coleman N Lannum III · Sr.VP, Investor Strategy, IRO

$53K+5.0%Feb 9

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.