UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): ~~May 6~~July 27, 2026

Simpson Manufacturing Co., Inc.

(Exact name of registrant as specified in its charter)

Delaware

1-13429

94-3196943

(State or other jurisdiction of incorporation)

(Commission file number)

(I.R.S. Employer Identification No.)

5956 W. Las Positas Boulevard, Pleasanton, CA 94588

(Address of principal executive offices)

(Registrant’s telephone number, including area code): (925) 560-9000


Securities registered pursuant to Section 12(b) of the Act:
Title of Each Class	Trading Symbol	Name of Each Exchange on Which Registered
Common Stock, par value $0.01 per share	SSD	New York Stock Exchange

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:


☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-2)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240. 13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 52.~~07 Submission~~02 Results of ~~Matters~~Operations toand aFinancial ~~Vote of Security Holders~~Condition.

On ~~May 6~~July 27, 2026, ~~the~~Simpson ~~Company~~Manufacturing ~~held~~Co., ~~its Annual Meeting of Stockholders (the “Annual Meeting”)~~Inc. Atissued ~~the~~a ~~Annual~~press ~~Meeting,~~release ~~the~~announcing ~~Company’s~~financial ~~stockholders~~results ~~voted~~for on the ~~three~~quarter ~~proposals~~ended ~~set~~June 30, ~~forth~~2026, ~~below.~~a Acopy ~~more detailed description~~ of ~~each~~which ~~proposal~~ is ~~set~~attached ~~forth~~hereto inas ~~the~~Exhibit ~~Company’s~~99.1 ~~Proxy Statement filed with the Securities~~ and ~~Exchange~~is ~~Commission~~incorporated onherein ~~March~~by ~~24,~~this ~~2026~~reference.

~~Proposal~~This 1:information Tois ~~elect~~furnished ~~eight~~pursuant ~~directors,~~to ~~each~~Item to2.02 ~~hold~~and ~~office~~shall ~~until~~not be deemed "filed" for purposes of Section 18 of the ~~Company's~~Securities ~~2027~~Exchange ~~annual~~Act ~~meeting~~of 1934, as amended (the "Exchange Act"), nor shall it be deemed incorporated by reference in any filing under the Securities Act of ~~stockholders~~1933, as amended, or ~~until~~the ~~their~~Exchange ~~successors~~Act, ~~are~~except ~~duly~~as ~~qualified~~shall ~~and~~be ~~elected~~expressly set forth by specific reference in such a filing.

~~Proposal~~Item 2:7.01 Regulation ToFD ~~approve, on an advisory basis, the compensation of the Company’s named executive officers~~Disclosures.

~~Proposal~~Representatives 3:of ToSimpson ~~ratify~~Manufacturing Co., Inc. (the ~~selection~~“Company”) ofintend ~~Grant~~to ~~Thornton~~present ~~LLP~~the Investor Presentation furnished as ~~the~~Exhibit ~~Company’s~~99.2 ~~independent~~to ~~registered~~this ~~public~~Current ~~accounting~~Report ~~firm~~on ~~for~~Form ~~the~~8-K, to analysts and investors from time to time on or after July 27, 2026. ~~fiscal~~The ~~year~~slide presentation will be available on the Investor Relations page of the Company’s website at ir.simpsonmfg.com.

AtThe ~~the~~information ~~close~~furnished ofpursuant ~~business~~to onthis ~~March~~Item 117.01, ~~2026,~~including ~~the~~Exhibit ~~record~~99.2 ~~date~~furnished ~~for~~herewith, ~~the~~shall ~~Annual~~not ~~Meeting,~~be ~~there~~deemed ~~were~~“filed” ~~41,194,018~~for ~~shares~~purposes of ~~the~~Section ~~Company’s~~18 ~~common~~of ~~stock~~the ~~outstanding~~Securities ~~and~~Exchange ~~entitled~~Act toof ~~vote~~1934, atas ~~the~~amended ~~Annual Meeting~~ (the “~~Common~~Exchange ~~Stock~~Act”)~~. As the holders of 38~~,~~752,780~~ ~~shares~~nor ofshall ~~Common~~it ~~Stock,~~be ~~having~~deemed aincorporated ~~majority~~by ofreference ~~the~~in ~~votes~~any ~~that~~filing ~~could~~under ~~be cast by~~ the ~~holders~~Securities Act of ~~all~~1933, ~~outstanding~~as ~~shares~~amended, ofor ~~Common~~the ~~Stock~~Exchange Act, ~~were~~except ~~represented~~as inexpressly ~~person~~set orforth by ~~proxy~~specific atreference ~~the~~in ~~Annual~~such ~~Meeting,~~ a ~~quorum was present~~filing.

~~Each~~The ofinformation ~~the~~furnished ~~foregoing~~pursuant ~~proposals~~to ~~was~~this ~~adopted~~Item ~~and~~7.01, ~~approved~~including byExhibit ~~the~~99.2 ~~stockholders~~furnished atherewith, ~~the~~contains ~~Annual~~“forward-looking ~~Meeting.~~statements” ~~The~~within ~~number~~the meaning of ~~votes~~the ~~cast~~safe ~~for~~harbor orprovisions ~~against,~~of asthe ~~well~~federal assecurities ~~abstentions~~laws. ~~and~~It ~~broker~~should ~~non-votes,~~be ifread ~~applicable,~~in conjunction with ~~respect~~the to“Safe ~~each~~Harbor” ofstatement ~~Proposals~~contained 1-in 3the ~~presented~~Investor atPresentation, the ~~Annual~~risk ~~Meeting,~~factors ~~including~~included ain ~~separate~~the ~~tabulation~~Company’s periodic reports filed with ~~respect~~the toSecurities ~~each~~and ~~director~~Exchange ~~nominee~~Commission ~~for~~and ~~office~~the ~~are~~other ~~set~~public ~~forth~~announcements ~~below:~~that the Company may make, by press release or otherwise, from time to time.

Proposal 1: Election of Directors.

				Broker
	For	Against	Abstain	Non-Votes
James Andrasick	36,731,368	576,424	37,323	1,407,665
Chau Banks	36,967,419	356,164	21,532	1,407,665
Felica Coney	37,281,551	30,150	33,414	1,407,665
Philip Donaldson	37,206,780	117,141	21,194	1,407,665
Angela Drake	37,177,599	145,503	22,013	1,407,665
Celeste Volz Ford	36,700,436	621,885	22,794	1,407,665
Kenneth Knight	37,295,980	15,608	33,527	1,407,665
Michael Olosky	37,018,648	287,307	39,160	1,407,665

As a result, the eight individuals were elected by the stockholders as directors of the Company, each to hold office until the Company's 2027 annual meeting of stockholders or until his or her successor has been duly qualified and elected.

Proposal 2: Approval, on an advisory basis, of the compensation of the Company’s named executive officers.

FOR						AGAINST						ABSTAIN						BROKER NON-VOTES
36,669,378						644,944						30,793						1,407,665

As a result, the compensation paid to the Company's named executive officers as disclosed in the Company’s proxy statement for the Annual Meeting was approved by the stockholders.

Proposal 3: Ratification of the selection of Grant Thornton LLP as the Company’s independent registered public accounting firm for 2026.

FOR						AGAINST						ABSTAIN			BROKER NON-VOTES
38,577,835						116,705						58,240			0

As a result, the selection of Grant Thornton LLP by the Company's board of directors as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026 was ratified by the stockholders.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.						Description
99.1						Press Release dated July 27, 2026
99.2						Simpson Manufacturing Co., Inc. Investor Presentation
104						Cover Page Interactive Data File (embedded within the XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Simpson Manufacturing Co., Inc.

(Registrant)

DATE:

~~May~~July 1827, 2026

/s/Matt ~~Cassandra Payton~~Dunn

Cassandra Payton

Matt Dunn

Executive Vice President, General Counsel

Chief Financial Officer

Filing Compare · Simpson Manufacturing Co., Inc.