Sara E. Armbruster - 10 Dec 2025 Form 4 Insider Report for STEELCASE INC (SCS)

Reporting relationship: President and CEO, Director
Issuer ticker: SCS
Reported as of: 10 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 12 Dec 2025, 15:21:22 UTC
Prior SEC filing: 27 Oct 2025
Source filing: View source filing
Reporting owner signature: Liesl A. Maloney, by power of attorney

Key filing fact

Sara E. Armbruster filed Form 4 for STEELCASE INC (SCS) on 12 Dec 2025.

Key facts

This page summarizes Sara E. Armbruster's Form 4 filing for STEELCASE INC (SCS).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 12 Dec 2025, 15:21.

Change

Previous filing in this sequence was filed on 27 Oct 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001360597 Primary reporting owner

Armbruster Sara E

Relationship: President and CEO, Director
Address: STEELCASE INC., 901 44TH ST SE, GRAND RAPIDS
Signature: Liesl A. Maloney, by power of attorney
Signature date: 12 Dec 2025

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

: SCS transaction

Class A Common Stock

Disposed to Issuer

Transaction value
Shares: -245,128
Change %: -32%
Price
Shares after: 510,700
Date: 10 Dec 2025
Ownership: Direct
Footnotes: F1, F2, F3

: SCS transaction

Class A Common Stock

Disposed to Issuer

Transaction value
Shares: -510,700
Change %: -100%
Price
Shares after: 0
Date: 10 Dec 2025
Ownership: Direct
Footnotes: F4

: SCS transaction

Class A Common Stock

Award

Transaction value: $0
Shares: +1,148,850
Change %
Price: $0.000000
Shares after: 1,148,850
Date: 10 Dec 2025
Ownership: Direct
Footnotes: F5

: SCS transaction

Class A Common Stock

Disposed to Issuer

Transaction value
Shares: -1,148,850
Change %: -100%
Price
Shares after: 0
Date: 10 Dec 2025
Ownership: Direct
Footnotes: F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Sara E. Armbruster is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

Explanation of responses 6 footnotes

Footnote F1

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.

Footnote F2

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").

Footnote F3

Since the date of the reporting person's last ownership report, she transferred 245,127 shares of Steelcase Class A Common Stock to her ex-husband pursuant to a domestic relations order. The reporting person no longer reports as beneficially owned any securities owned by her ex-husband.

Footnote F4

Pursuant to the Merger Agreement, at the First Effective Time, each Unvested Company RSU Award (as defined in the Merger Agreement) was assumed by HNI and converted into a restricted stock unit award that settles in an amount in cash (that accrues interest using the Applicable Interest Rate (as defined in the Merger Agreement)) and a number of shares of HNI common stock (rounded to the nearest whole share) that the holder would have received if the holder would have converted all of the Issuer common stock underlying the Unvested Company RSU Award based on an election to receive the mixed election consideration with the same terms and conditions as applied to such Unvested Company RSU Award immediately prior to the First Effective Time.

Footnote F5

Represents a deemed acquisition of shares of Issuer Class A Common Stock underlying unvested performance units based on the deemed attainment of the applicable performance metrics based on the Issuer's actual performance as set forth in the Merger Agreement.

Footnote F6

Pursuant to the Merger Agreement, at the First Effective Time, each Company PSU Award (as defined in the Merger Agreement) was assumed by HNI and converted into a restricted stock unit award that settles in an amount in cash (that accrues interest using the Applicable Interest Rate) and a number of shares of HNI common stock (rounded to the nearest whole share) that the holder would have received if the holder would have converted all of the Issuer common stock underlying the Company PSU Award based on an election to receive mixed election consideration.