205,815 Peakstone (PKST) shares canceled for $21 in merger

Rhea-AI Filing Summary

Peakstone Realty Trust chief operating officer and chief legal officer Nina Momtazee Sitzer reported a disposition to the issuer of 205,815 shares of common stock. These shares, including unvested restricted stock units, were cancelled and converted into the right to receive $21.00 in cash per share at the company merger effective time under the Merger Agreement. Following this cash-out cancellation, she reported holding zero shares of Peakstone common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Sitzer Nina Momtazee

Role COO and CLO

Type	Security	Shares	Price	Value
Disposition	Common Stock	205,815	$21.00	$4.32M

Holdings After Transaction: Common Stock — 0 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares disposed to issuer: 205,815 shares Cash per share: $21.00 per share Post-transaction holdings: 0 shares

3 metrics

Shares disposed to issuer 205,815 shares Common stock and unvested RSUs canceled at merger effective time

Cash per share $21.00 per share Cash consideration for each canceled share/RSU under Merger Agreement

Post-transaction holdings 0 shares Direct Peakstone common stock held by Nina Momtazee Sitzer after transaction

Key Terms

Disposition to issuer, restricted stock units, Merger Agreement, Merger Effective Time

4 terms

Disposition to issuer financial

"transaction_code_description: "Disposition to issuer""

restricted stock units financial

"Represents shares of common stock and unvested restricted stock units that were cancelled"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Merger Agreement financial

"at the Company Merger Effective Time in accordance with the terms of the Merger Agreement"

A merger agreement is a binding contract that lays out the exact terms for two companies to combine, including the price, what each side will deliver, and the conditions that must be met before the deal is completed. Investors care because it sets the timetable, payouts and risks — like a blueprint or prenup that shows whether the deal is likely to close, how ownership will change, and what could cancel or alter the payout they expect.

Merger Effective Time financial

"cancelled and converted into the right to receive an amount in cash ... at the Company Merger Effective Time"

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

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^*

Sitzer Nina Momtazee

(Last) (First) (Middle)

1520 E. GRAND AVE

(Street)

EL SEGUNDO CALIFORNIA 90245

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Peakstone Realty Trust [ PKST ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/06/2026

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
Common Stock	05/06/2026		D(1)		205,815	D	$21	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. Represents shares of common stock and unvested restricted stock units that were cancelled and converted into the right to receive an amount in cash equal to $21.00 per share at the Company Merger Effective Time in accordance with the terms of the Merger Agreement as defined and disclosed in the Company's Proxy Statement filed with the Securities and Exchange Commission on March 16, 2026.

	/s/ Nina Momtazee Sitzer	05/06/2026
	** 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 Peakstone Realty Trust (PKST) report for Nina Momtazee Sitzer?

Peakstone Realty Trust reported that COO and CLO Nina Momtazee Sitzer disposed of 205,815 common shares. These shares, including unvested restricted stock units, were cancelled and converted into a cash right under the company’s Merger Agreement at $21.00 per share at the merger effective time.

How many Peakstone Realty Trust (PKST) shares were affected in this Form 4 filing?

The Form 4 shows 205,815 shares of Peakstone common stock tied to Nina Momtazee Sitzer were cancelled. These shares, including unvested restricted stock units, were converted into the right to receive $21.00 in cash per share at the company merger effective time.

What price per share did Nina Momtazee Sitzer receive for Peakstone (PKST) shares?

The cancelled Peakstone shares and restricted stock units were converted into a right to receive $21.00 in cash per share. This cash consideration was set in accordance with the company’s Merger Agreement referenced in Peakstone’s proxy statement filed on March 16, 2026.

What does 'disposition to issuer' mean in the Peakstone (PKST) Form 4?

In this Form 4, 'disposition to issuer' means the shares were surrendered back to Peakstone rather than sold on the market. They were cancelled at the merger effective time and converted into a contractual right to receive $21.00 in cash per share under the Merger Agreement.

What was Nina Momtazee Sitzer’s Peakstone (PKST) share ownership after the transaction?

After the reported transaction, Nina Momtazee Sitzer’s direct ownership of Peakstone common stock was zero shares. All 205,815 shares and unvested restricted stock units reported in this Form 4 were cancelled and converted into the right to receive cash at $21.00 per share.

How is the Peakstone (PKST) merger related to this insider Form 4 transaction?

The transaction occurred at the company merger effective time. Under the Merger Agreement described in Peakstone’s March 16, 2026 proxy statement, the reported shares and unvested restricted stock units were cancelled and converted into the right to receive $21.00 in cash per share.