PBPB insider reports 48,203-share cash-out at $17.12 post-merger

Rhea-AI Filing Summary

Potbelly Corp (PBPB) officer (VP, Controller) reported the disposition of 48,203 shares of common stock at $17.12 per share on 10/23/2025, tied to the closing of the merger in which RaceTrac’s subsidiary combined with Potbelly and Potbelly became a wholly owned subsidiary. Following the transaction, reported beneficial ownership was 0 shares.

Per the merger terms, each Potbelly share was converted into the right to receive $17.12 in cash. The filing notes 11,255 unvested RSUs; vested RSUs converted into cash at the same per‑share price, while unvested RSUs were substituted into cash awards with the same vesting terms and “double‑trigger” acceleration upon certain post‑closing terminations. The filer also reflected a prior 969‑share sale from April 26, 2022 to cover taxes.

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

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X

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^*

Atkins Will

(Last) (First) (Middle)

500 W. MADISON ST.

SUITE 1000

(Street)

CHICAGO IL 60661

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
POTBELLY CORP [ PBPB ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
10/23/2025

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

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

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

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
Common Stock	10/23/2025		D(1)		48,203(2)(3)(4)	D	$17.12	0	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. Pursuant to the Agreement and Plan of Merger, dated as of September 9, 2025 (the "Merger Agreement"), by and among the Issuer, RaceTrac, Inc. ("Parent"), and Hero Sub Inc. ("Merger Sub"), Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of Parent. At the effective time of the Merger (the "Effective Time"), upon the terms and subject to the conditions set forth in the Merger Agreement, each share of common stock, par value $0.01 per share ("Common Stock"), of the Issuer that was issued and outstanding as of immediately prior to the Effective Time was automatically cancelled, extinguished and converted into the right to receive $17.12 per share in cash, without interest thereon (but subject to applicable withholding) (the "Per Share Price").

2. Includes 11,255 unvested restricted stock units ("RSUs"). Pursuant to the terms of the Merger Agreement, at the Effective Time, (A) each RSU that is outstanding and vested (but not yet settled) as of immediately prior to the Effective Time, taking into account any acceleration of vesting of any RSU that occurs upon the Effective Time (each, a "Vested RSU"), was automatically cancelled and converted into the right to receive an amount in cash, without interest thereon (but subject to applicable withholding), equal to the product obtained by multiplying (i) the Per Share Price by (ii) the total number of shares of Common Stock subject to such RSU and (B) each outstanding RSU that was not a Vested RSU (each, an "Unvested RSU") was automatically cancelled and substituted into the contingent right to receive an aggregate amount (without interest) in cash (a "Substituted RSU Cash Award") equal to the product obtained by multiplying (i) the Per Share Price by (ii) the total number of shares

3. (continued from footnote 2) of Common Stock subject to such RSU. Each such Substituted RSU Cash Award will continue to have, and will be subject to, the same vesting terms and conditions as applied to the corresponding Unvested RSU immediately prior to the Effective Time, except that each such Substituted RSU Cash Award will be afforded "double-trigger" accelerated vesting upon the applicable holder's termination without cause or resignation for good reason, in each case, that occurs during a post-closing period.

4. The sale of 969 shares of Common Stock to cover the tax liability upon vesting of RSUs on April 26, 2022 was inadvertently not reported and is reflected here.

Remarks:

	/s/ Will Atkins	10/27/2025
	** 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).
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FAQ

What did PBPB’s insider report on Form 4?

An officer reported disposing of 48,203 common shares at $17.12 per share on 10/23/2025 in connection with the merger closing.

What cash consideration did PBPB shareholders receive in the merger?

Each share of Potbelly common stock was converted into the right to receive $17.12 in cash.

What is the insider’s reported ownership after the transaction?

Reported beneficial ownership was 0 shares following the disposition.

How were PBPB restricted stock units (RSUs) treated?

The filing notes 11,255 unvested RSUs. Vested RSUs converted to cash at $17.12 per share; unvested RSUs became cash awards with the same vesting and double‑trigger acceleration.

Which companies were involved in PBPB’s merger?

Potbelly merged with a subsidiary of RaceTrac, Inc., with Potbelly surviving as a wholly owned subsidiary of RaceTrac.

Were there any prior transactions reflected in this filing?

Yes. A 969‑share sale on April 26, 2022 to cover RSU tax withholding was noted as previously unreported and reflected here.