Shake Shack (SHAK) director Jeffrey Flug buys 1,000 shares in open market

Rhea-AI Filing Summary

Shake Shack Inc. director and ten percent owner Jeffrey Flug reported an open-market purchase of the company’s Class A Common Stock. On May 15, 2026, he bought 1,000 shares at a weighted average price of $61.2955 per share, executed across multiple trades between $60.89 and $61.47.

Following this transaction, Flug directly holds 5,470 shares of Shake Shack Class A Common Stock. The filing notes he can provide full details of individual trade sizes and prices upon request to regulators, the company, or its shareholders.

Insider Trade Summary

Net Buyer: 1,000 shares ($61,296)

Net Buy 1 txn

Insider Flug Jeffrey

Role null

Bought 1,000 shs ($61K)

Type	Security	Shares	Price	Value
Purchase	Class A Common Stock, par value $0.001 per share	1,000	$61.2955	$61K

Holdings After Transaction: Class A Common Stock, par value $0.001 per share — 5,470 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares purchased: 1,000 shares Weighted average purchase price: $61.2955 per share Post-transaction holdings: 5,470 shares +1 more

4 metrics

Shares purchased 1,000 shares Open-market buy on May 15, 2026

Weighted average purchase price $61.2955 per share Class A Common Stock, May 15, 2026

Post-transaction holdings 5,470 shares Direct ownership after May 15, 2026 trade

Trade price range $60.89–$61.47 per share Multiple trades aggregated in Form 4

Key Terms

open-market purchase, weighted average, Class A Common Stock, ten percent owner

4 terms

open-market purchase financial

"he bought 1,000 shares at a weighted average price of $61.2955 per share, executed across multiple trades"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

weighted average financial

"The transaction was executed in multiple trades at prices ranging from $60.89 to $61.47. The price reported above reflects the weighted average"

A weighted average is a way of calculating an overall number when some items matter more than others by giving each item a different level of importance, or weight. Investors use weighted averages to combine figures like prices, returns or earnings so the result reflects the size or significance of each part — like grading a class where a final exam counts more than a quiz, producing a score that better represents true performance.

Class A Common Stock financial

"Class A Common Stock, par value $0.001 per share"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

ten percent owner financial

"director and ten percent owner Jeffrey Flug reported an open-market purchase"

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Flug Jeffrey

(Last) (First) (Middle)

C/O SHAKE SHACK INC.

225 VARICK STREET, SUITE 301

(Street)

NEW YORK NEW YORK 10014

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Shake Shack Inc. [ SHAK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/15/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock, par value $0.001 per share	05/15/2026		P		1,000	A	$61.2955(1)	5,470	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The transaction was executed in multiple trades at prices ranging from $60.89 to $61.47. The price reported above reflects the weighted average sales price. The Reporting Person undertakes to provide upon request to the Securities and Exchange Commission, Shake Shack Inc. (the "Issuer"), or a security holder of the Issuer full information regarding the number of shares and prices at which the transaction was effected.

Remarks:

	/s/ Ronald Palmese, Jr., Esq., Attorney-in-Fact for Jeffrey Flug	05/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Jeffrey Flug report at Shake Shack (SHAK)?

Jeffrey Flug reported buying 1,000 shares of Shake Shack Class A Common Stock in an open-market transaction. The trades occurred on May 15, 2026, and were executed at prices between $60.89 and $61.47 per share.

At what price did Jeffrey Flug buy Shake Shack (SHAK) shares?

Jeffrey Flug’s Shake Shack share purchase had a weighted average price of $61.2955 per share. According to the filing, the individual trades were executed in a price range from $60.89 to $61.47 across multiple transactions that day.

How many Shake Shack (SHAK) shares does Jeffrey Flug own after this transaction?

After the reported transaction, Jeffrey Flug directly owns 5,470 shares of Shake Shack Class A Common Stock. This total reflects his holdings immediately following the 1,000-share open-market purchase disclosed in the Form 4 filing for May 15, 2026.

What type of Shake Shack (SHAK) stock did Jeffrey Flug purchase?

Jeffrey Flug purchased Class A Common Stock of Shake Shack Inc., which has a par value of $0.001 per share. The transaction was an open‑market buy and is categorized as a non‑derivative security transaction in the Form 4 filing.

Does the Shake Shack (SHAK) filing detail each trade in Jeffrey Flug’s purchase?

The filing provides a weighted average price and trade price range, not each individual trade. It states Flug will supply full information on specific share amounts and prices to the SEC, Shake Shack, or any security holder upon request.