PJT Partners Inc. (PJT) director sale leaves 11,289 shares

Rhea-AI Filing Summary

PJT Partners Inc. director James Costos reported selling 1,723 shares of PJT Class A Common Stock on 2026-08-21 in an open market or private transaction at $175.00 per share. After this sale, he directly holds 11,289 shares of PJT Class A Common Stock. The sale was not marked as pursuant to a Rule 10b5-1 trading plan.

Insider Trade Summary

Net Seller: 1,723 shares

Net Sell 1 txn

Insider Costos James

Role Director

Sold 1,723 shs ($302K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	1,723	$175.00	$302K

Holdings After Transaction: Class A Common Stock — 11,289 shares (Direct)

Key Figures

Shares sold: 1,723 shares of Class A Common Stock Sale price per share: $175.00 per share Shares owned after transaction: 11,289 shares

3 metrics

Shares sold 1,723 shares of Class A Common Stock Sale reported on 2026-08-21

Sale price per share $175.00 per share Class A Common Stock sale by director James Costos

Shares owned after transaction 11,289 shares Direct holdings of James Costos after the sale

Key Terms

Class A Common Stock, open market or private transaction, Rule 10b5-1 trading plan

3 terms

Class A Common Stock financial

"security_title: "Class A Common Stock""

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.

open market or private transaction financial

"transaction_code_description: "Sale in open market or private transaction""

Rule 10b5-1 trading plan regulatory

"aff_10b5_one: false indicates no Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

FAQ

What insider transaction did PJT (PJT Partners Inc.) report for James Costos?

PJT reported that director James Costos sold 1,723 shares of Class A Common Stock on 2026-08-21 at $175.00 per share in an open market or private transaction, leaving him with 11,289 shares directly held.

How many PJT shares did James Costos sell and at what price?

James Costos sold 1,723 shares of PJT Partners Inc. Class A Common Stock at $175.00 per share on 2026-08-21, as reported in the Form 4.

How many PJT shares does James Costos hold after the reported sale?

After the reported sale, James Costos directly holds 11,289 shares of PJT Partners Inc. Class A Common Stock, according to the Form 4 disclosure.

Was the PJT insider sale by James Costos under a Rule 10b5-1 plan?

No. The Form 4 for PJT indicates the Rule 10b5-1 checkbox is not checked, so the reported sale by James Costos was not identified as made under a Rule 10b5-1 trading plan.

What type of security did James Costos trade in the PJT Form 4 filing?

James Costos traded Class A Common Stock of PJT Partners Inc., selling 1,723 shares at $175.00 per share in an open market or private transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/21/2026 - 05:01 PM Accepted by SEC EDGAR 08/21/2026 - 05:00 PM Learn about SEC filing dates

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^*

Costos James

(Last) (First) (Middle)

280 PARK AVENUE

(Street)

NEW YORK NEW YORK 10017

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
PJT Partners Inc. [ PJT ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2026

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	08/21/2026		S		1,723	D	$175	11,289	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:

	David K.F. Gillis, Attorney-in-Fact	08/21/2026
	** 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)