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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TNDMBuy

Tandem Diabetes Care Inc

John F Sheridan · President and CEO

$102K+10.0%Aug 11

TNDMBuy

Tandem Diabetes Care Inc

Leigh Vosseller · EVP and CFO

$149K+30.0%Aug 11

TNDMBuy

Tandem Diabetes Care Inc

Jean-Claude Kyrillos · EVP and COO

$191KMar 11

TNDMSell

Tandem Diabetes Care Inc

Kim D Blickenstaff · Director

$1.2M−19.0%Nov 22

TNDMSell

Tandem Diabetes Care Inc

Dick Allen · Director

$258K−10.0%Jun 3

TNDMBuy

Tandem Diabetes Care Inc

Peyton R Howell · Director

$90K+54.0%May 19

TNDMBuy

Tandem Diabetes Care Inc

Leigh Vosseller · EVP and CFO

$99K+27.0%May 16

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP and COO

$412K−73.0%Mar 7

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP and COO

$1.0M−88.0%Dec 19

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP and COO

$657K−79.0%Jun 10

TNDMSell

Tandem Diabetes Care Inc

Kim D Blickenstaff · Director

$1.0M−5.0%May 19

TNDMBuy

Tandem Diabetes Care Inc

Leigh Vosseller · EVP and CFO

$187K+37.0%May 10

TNDMBuy

Tandem Diabetes Care Inc

John F Sheridan · President and CEO

$175K+33.0%May 10

TNDMBuy

Tandem Diabetes Care Inc

Peyton R Howell · Director

$150K+211.0%May 10

TNDMSell

Tandem Diabetes Care Inc

Christopher J Twomey · Director

$28K−2.0%May 10

TNDMSell

Tandem Diabetes Care Inc

Rebecca B Robertson · Director

$145K−100.0%May 4

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP and COO

$118K−17.0%Apr 5

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP and COO

$542K−50.0%Mar 21

TNDMSell

Tandem Diabetes Care Inc

Kathleen Mcgroddy-Goetz · Director

$43K−33.0%Mar 16

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP and COO

$113K−17.0%Mar 2

TNDMSell

Tandem Diabetes Care Inc

Rebecca B Robertson · Director

$177K−100.0%Feb 3

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$118K−18.0%Feb 3

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$149K−18.0%Jan 5

TNDMSell

Tandem Diabetes Care Inc

Elizabeth Anne Gasser · EVP and Chief Strategy Officer

$164K−72.0%Dec 29

TNDMSell

Tandem Diabetes Care Inc

James Leal · SVP, Operations

$289K−32.0%Dec 29

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$1.7M−72.0%Dec 17

TNDMSell

Tandem Diabetes Care Inc

James Leal · SVP, Operations

$249K−32.0%Dec 1

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$128K−18.0%Dec 1

TNDMSell

Tandem Diabetes Care Inc

Susan Morrison · EVP, Chief Admin. Officer

$4.9M−81.0%Nov 17

TNDMSell

Tandem Diabetes Care Inc

Susan Morrison · EVP, Chief Admin. Officer

$763K−40.0%Nov 5

TNDMSell

Tandem Diabetes Care Inc

Elizabeth Anne Gasser · EVP and Chief Strategy Officer

$3.1M−99.0%Nov 5

TNDMSell

Tandem Diabetes Care Inc

Leigh Vosseller · EVP and CFO

$1.4M−61.0%Nov 5

TNDMSell

Tandem Diabetes Care Inc

Rebecca B Robertson · Director

$204K−100.0%Nov 3

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$136K−18.0%Nov 3

TNDMSell

Tandem Diabetes Care Inc

James Leal · SVP, Operations

$248K−34.0%Oct 28

TNDMSell

Tandem Diabetes Care Inc

Susan Morrison · EVP, Chief Admin. Officer

$1.3M−55.0%Oct 14

TNDMSell

Tandem Diabetes Care Inc

Leigh Vosseller · EVP and CFO

$2.7M−76.0%Oct 14

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$1.3M−69.0%Oct 14

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$118K−18.0%Oct 4

TNDMSell

Tandem Diabetes Care Inc

James Leal · SVP, Operations

$232K−34.0%Sep 29

TNDMSell

Tandem Diabetes Care Inc

Leigh Vosseller · EVP and CFO

$1.3M−61.0%Sep 17

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Bus Ops, Compliance

$1.1M−67.0%Sep 17

TNDMSell

Tandem Diabetes Care Inc

Leigh Vosseller · EVP and CFO

$1.2M−61.0%Sep 15

TNDMSell

Tandem Diabetes Care Inc

Brian B Hansen · EVP and Chief Commercial Officer

$3.8M−84.0%Sep 15

TNDMSell

Tandem Diabetes Care Inc

James Leal · SVP, Operations

$440K−49.0%Sep 9

TNDMSell

Tandem Diabetes Care Inc

Christopher J Twomey · Director

$37K−2.0%Sep 9

TNDMSell

Tandem Diabetes Care Inc

Christopher J Twomey · Director

$1.0M−34.0%Sep 3

TNDMSell

Tandem Diabetes Care Inc

Kim D Blickenstaff · Director

$3.3M−12.0%Sep 3

TNDMSell

Tandem Diabetes Care Inc

James Leal · SVP, Operations

$184K−31.0%Aug 31

TNDMSell

Tandem Diabetes Care Inc

David B Berger · EVP, Chief Business, Complianc

$1.1M−70.0%Aug 18

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.