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Jeffrey Flug bought SHAK once, on May 15, 2026

Director and 10% owner at Shake Shack Inc.

SEC CIK 0001396917 · Filings on SEC.gov ↗

$61KBought

$69.9MSold

May 18Last buy

Jeffrey Flug's record

3 months after each buy, from the first price a copier could get.

1 buy has 3 months of prices so far. A record shows here at 3.

Every filing

55 filings since Feb 2016, newest first

Shake Shack Inc.

Director and 10% owner

$61K+22.0%May 18

Shake Shack Inc.

Director and 10% owner

$27K−8.0%Aug 6

Shake Shack Inc.

Director and 10% owner

$28K−9.0%Jun 6

Shake Shack Inc.

Director and 10% owner

$32K−8.0%May 3

Shake Shack Inc.

Director and 10% owner

$31K−7.0%Apr 8

Shake Shack Inc.

Director and 10% owner

$33K−7.0%Mar 6

Shake Shack Inc.

Director and 10% owner

$100K−20.0%Feb 20

Shake Shack Inc.

Director and 10% owner

$58K−12.0%Dec 28

Shake Shack Inc.

Director and 10% owner

$139K−23.0%Aug 23

Shake Shack Inc.

Director and 10% owner

$112K−21.0%Feb 6

Shake Shack Inc.

Director and 10% owner

$3.6M−88.0%Oct 28

Shake Shack Inc.

Director and 10% owner

$814K−100.0%Aug 14

Shake Shack Inc.

Director and 10% owner

$3.6M−82.0%Aug 9

Shake Shack Inc.

Director and 10% owner

$2.0M−89.0%Nov 30

Shake Shack Inc.

Director and 10% owner

$1.8M−20.0%Nov 28

Shake Shack Inc.

Director and 10% owner

$1.5M−85.0%Sep 11

Shake Shack Inc.

Director and 10% owner

$3.0M−63.0%Sep 4

Shake Shack Inc.

Director and 10% owner

$1.5M−9.0%Aug 29

Shake Shack Inc.

Director and 10% owner

$1.5M−85.0%Jun 4

Shake Shack Inc.

Director and 10% owner

$4.5M−20.0%May 30

Shake Shack Inc.

Director and 10% owner

$2.1M−92.0%Mar 12

Shake Shack Inc.

Director and 10% owner

$3.9M−64.0%Mar 7

Shake Shack Inc.

Director and 10% owner

$2.5M−29.0%Mar 5

Shake Shack Inc.

Director and 10% owner

$1.6M−7.0%Feb 28

Shake Shack Inc.

Director and 10% owner

$443K−76.0%Sep 15

Shake Shack Inc.

Director and 10% owner

$1.2M−68.0%Sep 14

Shake Shack Inc.

Director and 10% owner

$515K−22.0%Sep 8

Shake Shack Inc.

Director and 10% owner

$775K−25.0%Sep 5

Shake Shack Inc.

Director and 10% owner

$149K−1.0%Aug 29

Shake Shack Inc.

Director and 10% owner

$124K−50.0%May 25

Shake Shack Inc.

Director and 10% owner

$340K−74.0%May 22

Shake Shack Inc.

Director and 10% owner

$1.5M−77.0%May 18

Shake Shack Inc.

Director and 10% owner

$1.9M−49.0%May 15

Shake Shack Inc.

Director and 10% owner

$3.1M−45.0%May 10

Shake Shack Inc.

Director and 10% owner

$569K−45.0%Dec 15

Shake Shack Inc.

Director and 10% owner

$1.5M−53.0%Nov 15

Shake Shack Inc.

Director and 10% owner

$863K−26.0%Sep 15

Shake Shack Inc.

Director and 10% owner

$32K−1.0%Sep 14

Shake Shack Inc.

Director and 10% owner

$2.2M−38.0%Sep 8

Shake Shack Inc.

Director and 10% owner

$711K−11.0%Sep 6

Shake Shack Inc.

Director and 10% owner

$463K−7.0%Sep 1

Shake Shack Inc.

Director and 10% owner

$1.5M−17.0%Aug 25

Shake Shack Inc.

Director and 10% owner

$598K−6.0%Aug 16

Shake Shack Inc.

Director and 10% owner

$1.4M−12.0%Jul 26

Shake Shack Inc.

Director and 10% owner

$200K−2.0%Jul 22

Shake Shack Inc.

Director and 10% owner

$415K−3.0%Jul 15

Shake Shack Inc.

Director and 10% owner

$382K−4.0%Jun 16

Shake Shack Inc.

Director and 10% owner

$1.1M−9.0%Jun 14

Shake Shack Inc.

Director and 10% owner

$2.8M−18.0%Jun 8

Shake Shack Inc.

Director and 10% owner

$1.9M−11.0%Jun 3

About Jeffrey Flug

Jeffrey (Jeff) Flug is an American finance and hospitality executive who serves as a Director and 10% owner insider at Shake Shack Inc. (SHAK), where he has been a member of the Board of Directors since January 2010.( A veteran of Wall Street and the restaurant industry, he currently also serves as Lead Independent Director of Shake Shack Inc., Director of Shake Shack Enterprises LLC, and Independent Director of PennantPark Investment Corporation and PennantPark Floating Rate Capital Ltd.( He is based in Jackson Hole, Wyoming, and continues to play a key role in Shake Shack’s strategic oversight and governance.(

Flug’s earlier career includes senior roles in global finance and non-profit leadership. After earning a B.B.A. in Accounting, summa cum laude, from the University of Massachusetts Amherst in 1984 and attaining his C.P.A. at PricewaterhouseCoopers, he completed an M.B.A. in Finance at Columbia Business School in 1988.( He then joined Goldman Sachs, becoming Managing Director and Head of Fixed Income Financial Futures and Options Sales, and later served as Head of North America Fixed Income Institutional Sales at JPMorgan Chase.( In 2006 he became CEO and Executive Director of Millennium Promise, a non-profit focused on ending extreme poverty and malaria in Africa, before moving into hospitality as CFO, COO, and ultimately President of Union Square Hospitality Group from 2009 until his retirement in 2015.( He has also held board roles at Tender Greens, Sears Hometown & Outlet Stores, Momentous, and The Mountain School of Milton Academy, reflecting broad experience in strategic planning, financial oversight, and leadership of complex organizations.(

Written by Perplexity from public sources.

Filings come from SEC EDGAR. Not investment advice.