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Form 8-K

sec.gov

8-K — aTYR PHARMA INC

Accession: 0001339970-26-000071

Filed: 2026-10-27

Period: 2026-10-27

CIK: 0001339970

SIC: 2836 (BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES))

Item: Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

Item: Financial Statements and Exhibits

Documents

8-K — atyr-20261027.htm (Primary)

EX-3.1 (atyr-ex3_1.htm)

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8-K

8-K (Primary)

Filename: atyr-20261027.htm · Sequence: 1

8-K

--12-310001339970false00013399702026-10-272026-10-27

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): October 27, 2026

ATYR PHARMA, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-37378

20-3435077

(State or other jurisdiction

of incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

10240 Sorrento Valley Road, Suite 300

San Diego, CA

92121

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s telephone number, including area code: (858) 731-8389

Not Applicable

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

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 Stock, par value $0.001 per share

ATYR

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 or Rule 12b-2 of the Securities Exchange Act of 1934.

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 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

On October 27, 2026, aTyr Pharma, Inc. (the “Company”) filed a Certificate of Amendment to its Restated Certificate of Incorporation, as amended (the “Amendment”), with the Secretary of State of the State of Delaware to effect a one-for-forty (1-for-40) reverse stock split (the “Reverse Stock Split”) of its outstanding common stock. The Amendment will be effective at 5:00 p.m. Eastern Time on October 28, 2026. A series of alternate amendments to effect a reverse stock split was approved by the Company’s stockholders at the Company’s Special Meeting of Stockholders held on October 16, 2026, and the specific one-for-forty (1-for-40) Reverse Stock Split was subsequently approved by the Company’s board of directors on October 16, 2026.

The Amendment provides that, at the effective time of the Amendment, every forty (40) shares of the Company’s issued and outstanding common stock will automatically be combined into one (1) issued and outstanding share of common stock and the authorized shares of the Company’s common stock will remain 340,000,000, without any change in par value per share. As a result of the Reverse Stock Split, the number of shares of common stock outstanding will be reduced from approximately 100.5 million shares to approximately 2.5 million shares. The Reverse Stock Split will affect all shares of the Company’s common stock outstanding immediately prior to the effective time of the Amendment. As a result of the Reverse Stock Split, proportionate adjustments will be made to the per share exercise price and/or the number of shares issuable upon the exercise or vesting of all stock options, restricted stock units and warrants issued by the Company and outstanding immediately prior to the effective time of the Amendment, which will result in a proportionate decrease in the number of shares of the Company’s common stock reserved for issuance upon exercise or vesting of such stock options, restricted stock units and warrants, and, in the case of stock options and warrants, a proportionate increase in the exercise price of all such stock options and warrants. In addition, the number of shares reserved for issuance under the Company’s equity compensation plans immediately prior to the effective time of the Amendment will be reduced proportionately.

No fractional shares will be issued as a result of the Reverse Stock Split. Stockholders of record who would otherwise be entitled to receive a fractional share will be entitled to rounding up of the fractional share to a whole share. The Reverse Stock Split will affect all stockholders proportionately and will not affect any stockholder’s percentage ownership of the Company’s common stock (except to the extent that the Reverse Stock Split results in any stockholder owning only a fractional share).

The Company’s common stock will begin trading on The Nasdaq Capital Market under the same ticker symbol “ATYR” on a split-adjusted basis when the market opens on October 29, 2026. The new CUSIP number for the Company’s common stock following the Reverse Stock Split is 002120301.

The foregoing description is qualified in its entirety by the Amendment, which is filed as Exhibit 3.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No.

Description

3.1

Certificate of Amendment to Restated Certificate of Incorporation of aTyr Pharma, Inc.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document)

2

SIGNATURE

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.

ATYR PHARMA, INC.

By:

/s/ Brandon Yaras

Brandon Yaras

Chief Financial Officer

Date: October 27, 2026

3

EX-3.1

EX-3.1

Filename: atyr-ex3_1.htm · Sequence: 2

EX-3.1

Exhibit 3.1

CERTIFICATE OF AMENDMENT

TO THE

RESTATED CERTIFICATE OF INCORPORATION

OF

ATYR PHARMA, INC.

aTyr Pharma, Inc. (the “Corporation”), a corporation organized and existing under the laws of the General Corporation Law of the State of Delaware (the “DGCL”), hereby certifies as follows:

FIRST: That the name of the Corporation is aTyr Pharma, Inc. The date of the filing of its original Certificate of Incorporation with the Secretary of State of Delaware was September 8, 2005.

SECOND: That the Board of Directors of the Corporation (the “Board”), acting in accordance with the provisions of Sections 141 and 242 of the DGCL, duly adopted resolutions approving the following amendment of the Corporation’s Restated Certificate of Incorporation, as amended (the “Charter”), declaring said amendment to be advisable and providing for such consideration of such amendment at the Corporation’s special meeting of the stockholders:

The first two paragraphs of Article IV of the Charter are hereby amended and restated to read in their entirety as follows:

The total number of shares of capital stock which the Corporation shall have authority to issue is Three Hundred Forty-Seven Million Two Hundred Eighty-Five Thousand Four Hundred Fifty-Six (347,285,456), of which (i) Three Hundred and Forty Million (340,000,000) shares shall be a class designated as common stock, par value $0.001 per share (the “Common Stock”), and (ii) Seven Million Two Hundred Eighty-Five Thousand Four Hundred Fifty Six (7,285,456) shares shall be a class designated as preferred stock, par value $0.001 per share (the “Preferred Stock”), of which 72,000 shares are designated Series B Convertible Preferred Stock (“Series B Preferred Stock”), 15,957 shares are designated Series C Convertible Preferred Stock (“Series C Preferred Stock”), 2,197,499 shares are designated Series D Convertible Preferred Stock (“Series D Preferred Stock”, and together with the Series B Preferred Stock and Series C Preferred Stock, the “Designated Preferred Stock”), and Five Million (5,000,000) shares shall be undesignated preferred stock (the “Undesignated Preferred Stock”).

Effective as of 5:00 p.m., Eastern Time, on October 28, 2026 (the “Effective Time”), each forty (40) shares of the Corporation’s Common Stock issued and outstanding immediately prior to the Effective Time shall, automatically and without further action on the part of the Corporation or any holder of such Common Stock, be combined and converted into one (1) share of Common Stock without increasing or decreasing the par value of each share of Common Stock (the “Reverse Stock Split”). No fractional shares shall be issued in connection with the Reverse Stock Split. Stockholders who would otherwise be entitled to receive fractional shares of Common Stock shall be entitled to the rounding up of the fractional shares to a full share. Each certificate or book-entry position that immediately prior to the Effective Time represented shares of Common Stock shall thereafter represent that number of shares of Common Stock into which the shares of Common Stock represented by such certificate or book-entry position shall have been combined, subject to the treatment of fractional shares as described above. The Reverse Stock Split shall be effected on a record holder-by-record holder basis, such that any fractional shares of post-Reverse Stock Split Common Stock resulting from the Reverse Stock Split and held by a single record holder shall be aggregated.

1

Exhibit 3.1

THIRD: Thereafter, pursuant to a resolution of the Board, this Certificate of Amendment was submitted to the stockholders of the Company for their approval and was duly adopted and approved in accordance with the provisions of Section 242 of the DGCL.

[Signature Page Follows]

2

Exhibit 3.1

IN WITNESS WHEREOF, this Certificate of Amendment to the Restated Certificate of Incorporation has been executed by a duly authorized officer of this Corporation on this 27th day of October, 2026.

By:

/s/ Sanjay S. Shukla, M.D., M.S.

Sanjay S. Shukla, M.D., M.S.

President and Chief Executive Officer

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