[Form 4] STEELCASE INC Insider Trading Activity

Rhea-AI Filing Summary

Steelcase Inc. director reports full share conversion following HNI merger. The filing shows that on December 10, 2025, the director disposed of all directly and indirectly held shares of Steelcase Class A common stock as Steelcase became a wholly owned subsidiary of HNI Corporation under a previously signed merger agreement.

Each Steelcase Class A share outstanding immediately before the First Effective Time was converted into the right to receive merger consideration elected by the holder: either 0.2192 HNI shares plus $7.20 in cash, or $16.19 in cash plus 0.0009 HNI shares, or 0.3940 HNI shares, subject to the terms and automatic adjustments described in the merger agreement.

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

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X

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^*

NIEMANN JENNIFER C

(Last) (First) (Middle)

STEELCASE INC.

901 44TH ST SE

(Street)

GRAND RAPIDS MI 49508

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
STEELCASE INC [ NYSE: SCS ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
12/10/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	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
Class A Common Stock(1)	12/10/2025		D		500,550	D	(2)	0	D
Class A Common Stock	12/10/2025		D		3,491	D	(2)	0	I	By spouse
Class A Common Stock	12/10/2025		D		106,696	D	(2)	0	I	By trusts(3)
Class A Common Stock	12/10/2025		D		79,512	D	(2)	0	I	By trusts(4)
Class A Common Stock	12/10/2025		D		51,957	D	(2)	0	I	By trust(5)
Class A Common Stock	12/10/2025		D		1,459,753	D	(2)	0	I	By CRASTECOM B Limited Partnership(6)
Class A Common Stock	12/10/2025		D		10,000	D	(2)	0	I	By PILACON Limited Partnership(7)

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:

1. On December 10, 2025, pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement"), dated August 3, 2025, by and among HNI Corporation ("HNI"), Steelcase Inc. (the "Issuer"), Geranium Merger Sub I, Inc. and Geranium Merger Sub II, LLC, the Issuer became a wholly owned subsidiary of HNI.

2. At the First Effective Time (as defined in the Merger Agreement), pursuant to the Merger Agreement and subject to certain exceptions, each share of Issuer Class A Common Stock outstanding immediately before the First Effective Time was converted into, at the election of the holder thereof, subject to automatic adjustment, the right to receive the following consideration (collectively with, if applicable, cash in lieu of fractional shares, the "merger consideration"): (i) (a) 0.2192 shares of HNI common stock and (b) $7.20 in cash (together, the "mixed election consideration"); (ii) $16.19 in cash and 0.0009 shares of HNI common stock (the "cash election consideration"); or (iii) 0.3940 shares of HNI common stock (the "stock election consideration").

3. Represents shares held by trusts for the benefit of Ms. Niemann's family members, of which trusts Ms. Niemann's spouse serves as trustee.

4. Represents shares held by trusts for the benefit of Ms. Niemann's family members, of which trusts Ms. Niemann serves as trustee.

5. Represents shares held by a trust for the benefit of Ms. Niemann and her family, of which trust Ms. Niemann serves as co-trustee.

6. Represents shares held by CRASTECOM B Limited Partnership, of which Ms. Niemann is the managing general partner. Ms. Niemann disclaims beneficial ownership of the shares of Class A Common Stock and Class B Common Stock held by CRASTECOM except to the extent of her pecuniary interest therein.

7. Represents shares held by PILACON Limited Partnership, of which Ms. Niemann is the managing partner. Ms. Niemann disclaims beneficial ownership of the shares of Class A Common Stock held by PILACON except to the extent of her pecuniary interest therein.

Remarks:

	Liesl A. Maloney, by power of attorney	12/12/2025
	** 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).
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