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* BERQUIST JOSEPH A (Last) (First) (Middle) 901 E. HECTOR STREET (Street) CONSHOHOCKEN PA 19428-2380 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol QUAKER CHEMICAL CORP [ KWR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) Other (specify below) CEO and President
	3. Date of Earliest Transaction (Month/Day/Year) 03/15/2026
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person Form filed by More than One Reporting Person

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	03/15/2026		A		1,396(1)	A	$0	13,639	D
Common Stock	03/15/2026		M		466	A	(2)	14,105	D
Common Stock	03/15/2026		M		462	A	(2)	14,567	D
Common Stock	03/15/2026		M		2,387	A	(2)	16,954	D
Common Stock	03/15/2026		M		62	A	(3)	17,016	D
Common Stock	03/15/2026		F		1,623(4)	D	$118.45	15,393	D
Common Stock								274(5)	I	By 401(k)

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	(2)	03/15/2026		M			466	(6)	(6)	Common Stock	466	$0	466	D
Restricted Stock Units	(2)	03/15/2026		M			462	(6)	(6)	Common Stock	462	$0	462	D
Restricted Stock Units	(2)	03/15/2026		M			2,387	(7)	(7)	Common Stock	2,387	$0	4,774	D
Dividend Equivalent Rights	(3)	03/15/2026		M			62	(3)	03/15/2026	Common Stock	62	(3)	0	D
Restricted Stock Units	(8)	03/15/2026		A		11,143		(8)	(8)	Common Stock	11,143	$0	11,143	D

Explanation of Responses:

1. Shares earned upon vesting and settlement of Performance Stock Units (PSUs) awarded on March 15, 2023, upon certification of performance results by the Compensation and Human Resources Committee based on achievement of the adjusted return on invested capital (ROIC) metric, during the three year performance period.

2. Restricted stock units (RSUs) convert into common stock on a one-for-one basis.

3. Dividend equivalent rights (DERs) accrued on reporting person's RSUs granted on March 15, 2024 (two grants) and March 15, 2025. The rights accrued when and as dividends were paid on KWR common stock. This Form 4 reports the settlement of DERs in connection with the second installment of the 2024 RSU grants and the first installment of the 2025 RSU grant, each vesting on March 15, 2026. Each DER was the economic equivalent of one share of KWR common stock.

4. Shares surrendered by reporting person to satisfy withholding tax obligations upon the full or partial vesting of certain restricted stock, PSUs, and RSUs previously granted under the Company's Long-Term Performance Incentive Plan.

5. Information based on reporting person's Plan Statement as of December 31, 2025.

6. On March 15, 2024, the reporting person was granted 1,398 time-based RSUs and 1,386 special time-based RSUs, with both awards vesting in three equal installments beginning on March 15, 2025.

7. On March 15, 2025, the reporting person was granted 7,161 time-based RSUs, vesting in three annual installments beginning on March 15, 2026.

8. Time-based RSUs granted under the Company's Long-Term Performance Incentive Plan, which will vest in three annual installments beginning on March 15, 2027. Each RSU represents a contingent right to receive one share of KWR common stock and DERs accrue with respect to these RSUs when and as dividends are paid on KWR common stock.

Remarks:

	Victoria K. Gehris, Attorney-in-Fact for Joseph A. Berquist	03/17/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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