Flowserve director awarded 2,573 phantom stock units

Shuster Ross B. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Shuster Ross B. reported acquisition or exercise transactions in this Form 4 filing.

Flowserve Corp director Ross B. Shuster reported receiving 2,573 phantom stock units as deferred director compensation. Each unit is economically equivalent to one share of common stock, valued at $67.99 per unit on the grant date. These phantom shares will be settled in common stock when his service on the board ends.

Insider Trade Summary

Grant/Award: 2,573 shares

Grant/Award 1 txn

Insider Shuster Ross B.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Phantom Stock	2,573	$67.99	$175K

Holdings After Transaction: Phantom Stock — 2,573 contracts (Direct)

Footnotes (2)

1. F1. Each share of phantom stock is the economic equivalent of one share of common stock, and represents director compensation deferred in the form of common stock pursuant to the issuer's deferred compensation plan.
2. F2. The shares of phantom stock become payable in the form of common stock upon the reporting person's termination of service as a member of the issuer's board of directors.

Key Figures

Phantom stock units granted: 2,573 units Reference price per unit: $67.99 per unit Total phantom units after grant: 2,573 units +1 more

4 metrics

Phantom stock units granted 2,573 units Director compensation grant on May 14, 2026

Reference price per unit $67.99 per unit Grant value reference for phantom stock

Total phantom units after grant 2,573 units Holdings following reported transaction

Underlying common shares 2,573 shares Common stock underlying phantom units

Key Terms

Phantom Stock, economic equivalent, deferred compensation plan, termination of service

4 terms

Phantom Stock financial

"Each share of phantom stock is the economic equivalent of one share of common stock"

A phantom stock is a form of compensation that gives employees or executives the benefits of stock ownership, such as the increase in stock value, without actually giving them real shares. It acts like a promise to pay the employee the equivalent value of company stock later, often as a bonus or incentive. This allows companies to motivate and reward staff without diluting ownership or transferring actual shares.

economic equivalent financial

"Each share of phantom stock is the economic equivalent of one share of common stock"

deferred compensation plan financial

"represents director compensation deferred in the form of common stock pursuant to the issuer's deferred compensation plan"

A deferred compensation plan is an arrangement where an employer agrees to pay part of an employee’s pay or bonus at a later date instead of immediately, often to reduce current tax bills or to tie rewards to long-term performance. For investors it matters because these promises create future cash obligations and influence executive incentives and retention; they can affect a company’s reported liabilities, cash flow planning and the risk profile if the business faces financial trouble.

termination of service financial

"become payable in the form of common stock upon the reporting person's termination of service"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Flowserve (FLS) director Ross B. Shuster report?

Ross B. Shuster reported an acquisition of 2,573 phantom stock units as director compensation. The award represents deferred compensation that mirrors Flowserve common stock value and will eventually be paid in shares when his board service terminates.

What is the size of Ross B. Shuster’s phantom stock award at Flowserve (FLS)?

He received 2,573 phantom stock units, each economically equivalent to one share of Flowserve common stock. At a reference value of $67.99 per unit, the grant reflects deferred equity-based compensation instead of immediate cash payments for director services.

How and when are Flowserve (FLS) phantom stock units payable to Ross B. Shuster?

The phantom stock units become payable in Flowserve common stock upon Shuster’s termination of service as a board member. Until then, they function as deferred compensation tracking the value of the underlying common shares economically one-for-one.

Does Ross B. Shuster’s Flowserve (FLS) Form 4 show open-market buying or selling?

No open-market buys or sells are reported. The Form 4 shows a grant of 2,573 phantom stock units as compensation, coded as an acquisition (A), rather than a discretionary market purchase or sale of Flowserve common stock.

What does each Flowserve (FLS) phantom stock unit represent for Ross B. Shuster?

Each phantom stock unit is the economic equivalent of one share of Flowserve common stock. It represents deferred director compensation, tracking the stock’s value, and will ultimately be settled in actual common shares when his board service ends.

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

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Accepted by SEC EDGAR 05/15/2026 - 04:27 PM EDT 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^*

Shuster Ross B.

(Last) (First) (Middle)

5215 N. O'CONNOR BLVD.

SUITE 700

(Street)

IRVING TEXAS 75039

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
FLOWSERVE CORP [ FLS ]

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)
05/14/2026

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

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
Phantom Stock	(1)	05/14/2026		A		2,573		(2)	(2)	Common Stock	2,573	$67.99	2,573	D

Explanation of Responses:

1. Each share of phantom stock is the economic equivalent of one share of common stock, and represents director compensation deferred in the form of common stock pursuant to the issuer's deferred compensation plan.

2. The shares of phantom stock become payable in the form of common stock upon the reporting person's termination of service as a member of the issuer's board of directors.

Remarks:

	/s/ Shakeeb U. Mir, attorney-in-fact	05/15/2026
	** 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)