Form 8-K

8-K — ProMIS Neurosciences Inc.

Accession: 0001104659-26-064545

Filed: 2026-05-20

Period: 2026-05-20

CIK: 0001374339

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Item: Submission of Matters to a Vote of Security Holders

Item: Financial Statements and Exhibits

Documents

8-K — pmn-20260520x8k.htm (Primary)

EX-10.1 (pmn-20260520xex10d1.htm)

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8-K

8-K (Primary)

Filename: pmn-20260520x8k.htm · Sequence: 1

PROMIS NEUROSCIENCES INC._May 20, 2026

0001374339false00013743392026-05-202026-05-20

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 20, 2026

PROMIS NEUROSCIENCES INC.

(Exact name of registrant as specified in its charter)

Ontario, Canada

001-41429

98-0647155

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

Suite 200, 1920 Yonge Street,

Toronto, Ontario

M4S 3E2

(Address of principal executive

offices)

(Zip Code)

Registrant’s telephone number, including area code: (416) 847-6898

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-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(s)

Name of Each Exchange on Which Registered

Common Shares, no par value per share

PMN

The Nasdaq Capital 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 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

As further described in Item 5.07 below, the stockholders of ProMIS Neurosciences Inc. (the “Company”) approved an amendment (the “2025 Plan Amendment”) to the Company’s 2025 Stock Option and Incentive Plan (the “2025 Plan”) at the Company’s 2026 Annual Meeting of Stockholders (the “Annual Meeting”) held on May 20, 2026. The 2025 Plan Amendment was previously approved by the Company’s Board of Directors (the “Board”). The 2025 Plan Amendment, which became effective upon the stockholders’ approval at the Annual Meeting, increases the number of Common Shares (as defined below) available for issuance thereunder the 2025 Plan by 900,000 Common Shares.

A description of the 2025 Plan Amendment is included in Proposal 3 of the Company’s Definitive Proxy Statement on Schedule 14A filed with the Securities and Exchange Commission on April 9, 2026 (the “Proxy Statement”), which summary is incorporated in its entirety herein by reference. The descriptions of the 2025 Plan Amendment contained herein and in the Proxy Statement do not purport to be complete and are subject to, and qualified in their entirety by reference to, the full text of the 2025 Plan Amendment, a copy of which is filed as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 5.07 Submission of Matters to a Vote of Security Holders.

On May 20, 2026, the Company held its Annual Meeting. The shareholders considered three proposals, each of which is described in more detail in the Company’s Proxy Statement. Of the 8,967,693 Common Shares, no par value per share (the “Common Shares”), outstanding as of the record date, 4,762,024 Common Shares, or approximately 53.1%, were present or represented by proxy at the Annual Meeting. Set forth below are the results of the matters submitted for a vote of shareholders at the Annual Meeting.

Proposal No. 1: Election of seven nominees to serve as directors until the 2027 annual meeting of shareholders or until his or her successor has been duly elected and qualified or until his or her earlier resignation or removal. The votes were cast as follows by holders of Common Shares:

Name

Votes For

Votes Withheld

Eugene Williams

4,108,919

38,462

Neil Cashman, M.D.

4,143,889

3,492

Joshua Mandel-Brehm

4,118,276

29,105

Maggie Shafmaster, Ph.D., J.D.

4,143,725

3,656

Neil K. Warma

4,103,311

44,070

William Wyman

4,109,684

37,697

Slanix Alex, Pharm.D

4,122,179

25,202

Broker non-votes: 614,643.

All seven nominees were elected.

Proposal No. 2: Ratification of the appointment of Baker Tilly US, LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026. The votes were cast as follows by holders of Common Shares:

Votes For

Votes Against

Abstained

Ratification of appointment of Baker Tilly US, LLP

4,657,634

4,415

99,975

Broker non-votes: 0.

Proposal No. 3: An ordinary resolution approving the Amendment to the 2025 Stock Option and Incentive Plan to increase the number of Common Shares available for issuance thereunder by 900,000 Common Shares.

Votes For

Votes Against

Abstained

Approval of the Amendment to the 2025 Stock Option and Incentive Plan

3,352,388

774,193

20,800

Broker non-votes: 614,643.

No other matters were submitted to or voted on by the Company’s shareholders at the Annual Meeting.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.

Description

10.1

Amendment No. 1 to the ProMIS Neurosciences Inc. 2025 Stock Option and Incentive Plan

104

Cover Page Interactive Data File (embedded within Inline 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.

PROMIS NEUROSCIENCES INC.

Date: May 20, 2026

By:

/s/ Neil Warma

Name: Neil Warma

Title: Chief Executive Officer

EX-10.1

Filename: pmn-20260520xex10d1.htm · Sequence: 2

Exhibit 10.1

AMENDMENT NO. 1

TO THE

PROMIS NEUROSCIENCES, INC.

2025 STOCK OPTION AND INCENTIVE PLAN

WHEREAS, Promis Neurosciences, Inc. (the “Company”) maintains the Promis Neurosciences, Inc. 2025 Stock Option and Incentive Plan (the “Plan”), which was previously adopted by the Board of Directors of the Company (the “Board”) and approved by the stockholders of the Company;

WHEREAS, the Board desires to amend the Plan to increase the number of shares available for issuance under the Plan;

WHEREAS, Section 16 of the Plan provides that the Board may amend the Plan at any time, subject to certain conditions set forth therein; and

WHEREAS, this Amendment will become effective upon approval by the Company’s stockholders at the Company’s 2026 Annual Meeting and if, for any reason, the Company’s stockholders fail to approve this Amendment, the existing Plan shall continue in full force and effect.

NOW, THEREFORE:

1. Section 3(a) of the Plan is hereby amended by deleting “117,868” where it appears in the first sentence thereof and replacing it with “1,017,868.”

2. Effective Date of Amendment. This Amendment to the Plan shall become effective upon the date that it is approved by the Company’s stockholders in accordance with applicable laws and regulations.

3. Other Provisions. Except as set forth above, all other provisions of the Plan shall remain unchanged.

IN WITNESS WHEREOF, this Amendment No. 1 to the Plan has been adopted by the Board of Directors of the Company on April 2, 2026 and approved by the stockholders of the Company on May 20, 2026.

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