[Form 4] STEELCASE INC Insider Trading Activity

Rhea-AI Filing Summary

Steelcase Inc. reports that a director disposed of 3,611 shares of Class A common stock on December 10, 2025, in connection with the company becoming a wholly owned subsidiary of HNI Corporation under a previously signed merger agreement. At the first effective time of the merger, each outstanding Steelcase Class A share was converted, at the holder’s election and subject to automatic adjustment, into one of three forms of merger consideration. Holders could choose either (i) the mixed election of 0.2192 HNI shares plus $7.20 in cash per Steelcase share, (ii) the cash election of $16.19 in cash plus 0.0009 HNI shares per share, or (iii) the stock election of 0.3940 HNI shares per share.

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Form 4 records Steelcase shares converting into HNI stock and cash at merger close.

This filing shows a Steelcase Inc. director’s 3,611 Class A common shares being disposed of on December 10, 2025 because Steelcase became a wholly owned subsidiary of HNI Corporation. The change in ownership results from the Agreement and Plan of Merger dated August 3, 2025, rather than open-market trading by the insider.

The merger consideration is clearly defined: per Steelcase share, holders could elect (i) 0.2192 HNI shares plus $7.20 cash, (ii) $16.19 cash plus 0.0009 HNI shares, or (iii) 0.3940 HNI shares. These fixed share and cash components determine how a former Steelcase shareholder’s exposure shifts between HNI equity and cash after closing.

The economic impact for any given former Steelcase holder depends on which election was made and the market value of HNI shares on and after December 10, 2025. This Form 4 mainly documents a structural change in ownership due to the completed merger, not an ongoing trading strategy by the reporting person.

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^*

Ross Cathy D

(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		3,611	D	(2)	0	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

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").

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.
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