UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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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): June 4, 2025

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TOURMALINE BIO, INC.

(Exact name of registrant as specified in its charter)

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Delaware

(State or other jurisdiction of

incorporation or organization)

001-40384

(Commission

File Number)

83-2377352

(I.R.S. Employer

Identification No.)

27 West 24th Street, Suite 702

New York, NY

(Address of principal executive offices)

10010

(Zip Code)

Registrant's telephone number, including area code: (646) 481-9832

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

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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 (see General Instruction A.2. below):


☐			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-12)
☐			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))

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 $0.0001 per share

TRML

The Nasdaq Global Select Market

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

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 5.07			Submission of Matters to a Vote of Security Holders.

On June 4, 2025, Tourmaline Bio, Inc. (the “Company”) held its 2025 annual meeting of stockholders (the “Annual Meeting”). A total of 25,684,479 shares of common stock were entitled to vote as of April 15, 2025, the record date for the Annual Meeting. There were 20,804,265 shares of common stock present virtually or represented by proxy at the Annual Meeting, constituting a quorum to conduct business.

The following proposals were voted upon at the Annual Meeting:


Proposal No. 1						Election of Dr. Caley Castelein and Aaron Kantoff as Class I directors to the Company’s board of directors, each to serve until the 2028 annual meeting of stockholders; and

Proposal No. 2						Ratification of the selection of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025.

On June 4, 2025, Mediant Communications, Inc., the independent inspector of election for the Annual Meeting, delivered its final report as to the voting results for each of these proposals. The following are the final voting results for each of the items voted on at the Annual Meeting:

Proposal 1. Election of Class I Directors.


Nominee	Votes For	Votes Withheld	Broker Non-Votes
Dr. Caley Castelein	14,926,508	2,653,512	3,224,245
Aaron Kantoff	16,496,989	1,083,031	3,224,245

Based on the votes set forth above, the stockholders of the Company elected Dr. Caley Castelein and Aaron Kantoff as Class I directors to the Company’s board of directors, each to serve until the 2028 annual meeting of stockholders.

Proposal No. 2. Ratification of Selection of Deloitte & Touche LLP.


Votes For	Votes Against	Abstentions
20,799,312	3,257	1,696

Based on the votes set forth above, the stockholders of the Company ratified the selection of Deloitte & Touche LLP as the Company’s independent registered public accounting firm to serve for the year ending December 31, 2025.

SIGNATURES

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


	TOURMALINE BIO, INC.

Date: June 6, 2025	By:	/s/ Brad Middlekauff
	Name:	Brad Middlekauff
	Title:	Corporate Secretary

Tourmaline Bio, Inc. 8-K