Flowserve (FLS) CHRO’s RSU vesting leads to tax share withholding

Rhea-AI Filing Summary

Flowserve Corp’s Chief Human Resources Officer Brian Boukalik reported routine equity compensation activity involving restricted stock units and related tax withholding. On June 16, 2026, 681 restricted stock units were converted into the same number of common shares, reflecting a derivative exercise tied to his long-term incentive plan. To cover tax obligations, 171 shares of common stock were disposed of at $78.07 per share through a tax-withholding mechanism rather than an open-market sale. Following these transactions, Boukalik directly holds 4,375 shares of common stock and 10,480 restricted stock units, which vest ratably over three years beginning on June 15, 2025 and settle the next business day after vesting.

Insider Trade Summary

681 shares exercised/converted

Mixed 3 txns

Insider Boukalik Brian

Role Chief Human Resources Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	681	$0.00	--
Exercise	Common Stock	701	$0.00	--
Tax Withholding	Common Stock	171	$78.07	$13K

Holdings After Transaction: Restricted Stock Units — 10,480 shares (Direct, null); Common Stock — 4,375 shares (Direct, null)

Footnotes (1)

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Key Figures

RSUs converted: 681 units Shares withheld for tax: 171 shares Withholding price: $78.07 per share +3 more

6 metrics

RSUs converted 681 units Restricted stock units converted to common stock on June 16, 2026

Shares withheld for tax 171 shares Tax-withholding disposition on June 16, 2026

Withholding price $78.07 per share Value used for 171-share tax-withholding disposition

Common shares held 4,375 shares Total Flowserve common stock directly held after transactions

RSUs outstanding 10,480 units Restricted stock units remaining after the June 16, 2026 activity

RSU vesting start June 15, 2025 Beginning of three-year ratable vesting period for RSUs

Key Terms

Restricted Stock Units, long-term incentive compensation plan, tax-withholding disposition, derivative exercise/conversion

4 terms

Restricted Stock Units financial

"Each restricted stock unit represents the right to receive, at settlement, one share of common stock"

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.

long-term incentive compensation plan financial

"are granted to the reporting person pursuant to the issuer's long-term incentive compensation plan for employees"

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

derivative exercise/conversion financial

"transaction_action": "derivative exercise/conversion""

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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^*

Boukalik Brian

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026

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	06/16/2026		M		701	A	$0	4,375	D
Common Stock	06/16/2026		F		171	D	$78.07	4,204	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
Restricted Stock Units	(1)	06/16/2026		M			681	(1)	(1)	Common Stock	681	$0	10,480	D

Explanation of Responses:

1. Each restricted stock unit represents the right to receive, at settlement, one share of common stock (plus dividends accrued on the underlying shares) and are granted to the reporting person pursuant to the issuer's long-term incentive compensation plan for employees. These shares vest ratably over a three-year period beginning on June 15, 2025, and settle on the next business day.

Remarks:

	/s/ Shakeeb U. Mir, attorney-in-fact	06/17/2026
	** 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 transactions did Flowserve (FLS) report for Brian Boukalik?

Flowserve reported that Chief Human Resources Officer Brian Boukalik had 681 restricted stock units convert into common stock and 171 shares withheld to cover taxes, all recorded on June 16, 2026 as routine equity compensation activity.

Did the Flowserve (FLS) insider transaction involve an open-market sale?

No, the disposition involved 171 shares withheld at $78.07 per share to satisfy tax obligations, not an open-market sale. The filing characterizes this as a tax-withholding disposition associated with equity compensation, rather than a discretionary share sale.

How many Flowserve (FLS) shares does Brian Boukalik hold after the transaction?

After the reported transactions, Brian Boukalik directly holds 4,375 shares of Flowserve common stock. He also has 10,480 restricted stock units outstanding, which represent additional potential shares that settle as they vest over time under the incentive plan.

What happened to Brian Boukalik’s restricted stock units at Flowserve (FLS)?

On June 16, 2026, 681 restricted stock units were exercised and converted into 681 Flowserve common shares. These units are granted under the company’s long-term incentive compensation plan and represent equity-based compensation for the executive.

How do Flowserve (FLS) restricted stock units vest for Brian Boukalik?

Each restricted stock unit entitles Boukalik to one Flowserve common share plus accrued dividends at settlement. According to the filing, these RSUs vest ratably over a three-year period beginning on June 15, 2025, and settle on the next business day after vesting.