# EDGAR Filing Document

**Accession Number:** 0002128152
**File Stem:** 0001628280-26-025329
**Filing Date:** 2026-4
**Character Count:** 12761
**Document Hash:** f07886ebfcc055cea9473918ee235c01
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-025329.hdr.sgml**: 20260415

**ACCESSION NUMBER**: 0001628280-26-025329

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 3

**CONFORMED PERIOD OF REPORT**: 20260411

**FILED AS OF DATE**: 20260415

**DATE AS OF CHANGE**: 20260415

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Klopfer Matthew Carl
- **CENTRAL INDEX KEY:** 0002128152

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-13179
- **FILM NUMBER:** 26865193

**MAIL ADDRESS:**
- **STREET 1:** 5215 N. O'CONNOR BLVD.
- **CITY:** IRVING
- **STATE:** TX
- **ZIP:** 75039
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FLOWSERVE CORP
- **CENTRAL INDEX KEY:** 0000030625
- **STANDARD INDUSTRIAL CLASSIFICATION:** PUMPS & PUMPING EQUIPMENT [3561]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 310267900
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 5215 N. O'CONNOR BLVD.
- **STREET 2:** SUITE 700
- **CITY:** IRVING
- **STATE:** TX
- **ZIP:** 75039
- **BUSINESS PHONE:** 9724436500

**MAIL ADDRESS:**
- **STREET 1:** 5215 N. O'CONNOR BLVD.
- **STREET 2:** SUITE 700
- **CITY:** IRVING
- **STATE:** TX
- **ZIP:** 75039

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DURCO INTERNATIONAL INC
- **DATE OF NAME CHANGE:** 19970508

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DURIRON CO INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** THE DURIRON CO INC
- **DATE OF NAME CHANGE:** 19900509

## Ex-24

![](section16powerofattorney001.jpg)

Section 16 Power of Attorney LIMITED POWER OF ATTORNEY The undersigned hereby constitutes and appoints each of R. Scott Rowe, Susan C. Hudson, Amy Schwetz, Shakeeb Mir and Grace-Ann Duquette, signing singly, the undersigned's true and lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned, in the undersigned's capacity as an officer and/or director of Flowserve Corporation (the "Company"), Forms 3, 4 and 5 in accordance with Section 16 of the Securities Exchange Act of 1934 and the rules thereunder; (2) do and perform any and all acts for and on behalf of the undersigned that may be necessary, desirable or appropriate to complete and execute any such Form 3, 4 or 5, complete and execute any amendment or amendments thereto and timely file such form with the U.S. Securities and Exchange Commission and any stock exchange or similar authority; and (3) take any and all other action of any type whatsoever in connection with the foregoing that, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of or legally required by the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion. The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934. This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact. The undersigned is executing this Power of Attorney on the date set forth below. /s/ Matthew Carl Klopfer_________ Signature Matthew Carl Klopfer Print Name April 1, 2026 Date

------

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Klopfer Matthew Carl<br><sub>(Last) (First) (Middle)</sub><br>5215 N. O'CONNOR BLVD.<br>SUITE 700<br><sub>(Street)</sub><br>IRVING, TX 75039<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>FLOWSERVE CORP [ FLS ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2026-04-11 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_President, FPD_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |
| Common Stock | 6845 | D |  |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Performance Rights | <sup>(1)</sup> | <sup>(1)</sup> | Common Stock | 1395 | <sup>(1)</sup> | D |  |
| Restricted Stock Units | <sup>(2)</sup> | <sup>(2)</sup> | Common Stock | 1084 | <sup>(2)</sup> | D |  |
| Restricted Stock Units | <sup>(3)</sup> | <sup>(3)</sup> | Common Stock | 1135 | <sup>(3)</sup> | D |  |
| Performance Rights | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 931 | <sup>(4)</sup> | D |  |
| Restricted Stock Units | <sup>(5)</sup> | <sup>(5)</sup> | Common Stock | 1449 | <sup>(5)</sup> | D |  |
| Restricted Stock Units | <sup>(6)</sup> | <sup>(6)</sup> | Common Stock | 9028 | <sup>(6)</sup> | D |  |
| Performance Rights | <sup>(7)</sup> | <sup>(7)</sup> | Common Stock | 878 | <sup>(7)</sup> | D |  |
| Restricted Stock Units | <sup>(8)</sup> | <sup>(8)</sup> | Common Stock | 2049 | <sup>(8)</sup> | D |  |

---

### Footnotes:

(1) Each performance right represents a contingent right to receive one share of the issuer's common stock at vesting. The performance rights vest at a rate between 0% and 200% and are based on two factors during a three-year performance cycle beginning on January 1, 2024 and ending on December 31, 2026 which are based equally on: 1) the issuer's ROIC for each calendar year in the performance period measured against the issuer's target ROIC for each calendar year in the performance period; and 2) the issuer's FCF as a percentage of adjusted net income for each calendar year in the performance period measured against the issuer's target FCF as a percentage of adjusted net income for each calendar year in the performance period. The performance rights are also subject to 15% payout modifier (positive or negative) based on the issuer's relative TSR in comparison to the TSR of companies that comprise the S&P 500 Industrials Index for the entire performance period.

(2) Each restricted stock unit represents the right to receive, at settlement, one share of common stock and is granted to the reporting person pursuant to the issuer's long-term incentive compensation plan for employees. The shares vest ratably over a three-year period on each anniversary of March 1, 2024.

(3) Each restricted stock unit represents the right to receive, at settlement, one share of common stock and is granted to the reporting person pursuant to the issuer's long-term incentive compensation plan for employees. The shares cliff vest on the third anniversary of the grant date, January 15, 2025.

(4) Each performance right represents a contingent right to receive one share of the issuer's common stock at vesting. The performance rights vest at a rate between 0% and 200% and are based on two factors during a three-year performance cycle beginning on January 1, 2025 and ending on December 31, 2027 which are based equally on: 1) the issuer's ROIC for each calendar year in the performance period measured against the issuer's target ROIC for each calendar year in the performance period; and 2) the issuer's FCF as a percentage of adjusted net income for each calendar year in the performance period measured against the issuer's target FCF as a percentage of adjusted net income for each calendar year in the performance period. The performance rights are also subject to 15% payout modifier (positive or negative) based on the issuer's relative TSR in comparison to the TSR of companies that comprise the S&P 500 Industrials Index for the entire performance period.

(5) 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. The shares vest ratably over a three-year period on each anniversary of March 1, 2025.

(6) Each restricted stock unit represents the right to receive, at settlement, one share of common stock and is granted to the reporting person pursuant to the issuer's long-term incentive compensation plan for employees. The shares vest ratably over a three-year period on each anniversary of the grant date, September 22, 2025.

(7) Each performance right represents a contingent right to receive one share of the issuer's common stock at vesting. The performance rights vest at a rate between 0% and 200% and are based on two factors during a three-year performance cycle beginning on January 1, 2026 and ending on December 31, 2028 which are: 1) the issuer's return on invested capital ("ROIC") measured against the issuer's target ROIC for each calendar year during the performance period; and 2) the issuer's average annual earnings per share growth over each calendar year during the performance period. The performance rights are also subject to a 15% payout modifier (positive or negative) based on the issuer's relative total shareholder return ("TSR") in comparison to the TSR of companies that comprise the S&P 500 Industrial Index for the entire performance period, as of January 1, 2026. The performance rights may be settled, at the issuer's discretion, in cash or shares of common stock.

(8) 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. The shares vest ratably over a three-year period on each anniversary of March 1, 2026.

**Signature:** /s/ Grace-Ann Duquette, attorney in fact  
**Date:** 2026-04-15

### Remarks:

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.**