Aktis Oncology updates charter after IPO

Aktis Oncology, Inc. adopted an amended and restated certificate of incorporation and bylaws in connection with the completion of its initial public offering on January 12, 2026.

Rhea-AI Filing Summary

Aktis Oncology, Inc. adopted an amended and restated certificate of incorporation and bylaws in connection with the completion of its initial public offering on January 12, 2026. The new charter authorizes 480,000,000 shares of common stock, 10,000,000 shares of Class A common stock, and 10,000,000 shares of undesignated preferred stock that the board may issue in one or more series. It also eliminates prior preferred stock series, requires at least a two-thirds stockholder vote to remove a director for cause, creates a classified board with directors serving staggered three-year terms, and removes stockholder action by written consent.

The amended and restated bylaws, effective immediately prior to the IPO, establish detailed procedures for stockholder proposals and director nominations, revise indemnification provisions for directors and officers, and align the bylaws with the new charter terms.

Insights

Corporate governance analyst

Aktis Oncology installs typical IPO-era defenses and flexible capital structure.

Aktis Oncology has put in place a post-IPO governance and capital structure that is common for new listings. The amended charter authorizes large amounts of common, Class A common, and blank-check preferred stock, giving the board wide flexibility to issue different securities over time as allowed by the terms in the document.

The company also adopted a classified board with three-year staggered terms and requires a two-thirds stockholder vote to remove directors for cause. Combined with the elimination of stockholder action by written consent, these features tend to make rapid changes in control less likely and concentrate more control with the board.

The updated bylaws formalize how stockholders can submit proposals and nominate directors and adjust indemnification protections for directors and officers. Future proxy materials and annual meeting disclosures will show how these procedures operate in practice for specific meetings and proposals.

8-K Event Classification

2 items: 5.03, 9.01

2 items

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

The company amended its charter documents, bylaws, or changed its fiscal year.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What corporate changes did Aktis Oncology (AKTS) report in this 8-K?

Aktis Oncology reported that it adopted an amended and restated certificate of incorporation and amended and restated bylaws in connection with completing its initial public offering.

How many shares can Aktis Oncology (AKTS) issue under its new charter?

The amended and restated certificate of incorporation authorizes 480,000,000 shares of common stock, 10,000,000 shares of Class A common stock, and 10,000,000 shares of undesignated preferred stock.

Did Aktis Oncology (AKTS) change its board structure?

Yes. The new charter establishes a classified board so successors to directors are elected to serve until the third annual meeting following their election and requires at least a two-thirds stockholder vote to remove a director for cause.

Can Aktis Oncology (AKTS) stockholders act by written consent after these changes?

No. The amended and restated certificate of incorporation eliminates the ability of stockholders to take action by consent in lieu of a meeting.

What do the amended and restated bylaws of Aktis Oncology (AKTS) cover?

The amended and restated bylaws set procedures for presenting stockholder proposals and nominating directors, modify indemnification provisions for directors and officers, and align with the amended charter.

When did the new bylaws of Aktis Oncology (AKTS) become effective?

The amended and restated bylaws became effective immediately prior to the completion of the company’s initial public offering on January 12, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Understanding 8-K Material Events →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 01/12/2026 - 04:03 PM Learn about SEC filing dates

Common Stock, par value $0.0001 per share --12-31 false 0002035832 0002035832 2026-01-12 2026-01-12

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): January 12, 2026

Aktis Oncology, Inc.

(Exact name of registrant as specified in its charter)

Delaware		001-43047		85-2584233
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

17 Drydock Avenue, Suite 17-401

Boston, Massachusetts 02210

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (617) 461-4023

N/A

(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 $0.0001 per share		AKTS		The Nasdaq Stock Market LLC

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

Amended and Restated Certificate of Incorporation

As previously disclosed in the Registration Statement on Form S-1, as amended (File No. 333-292283) (the “Registration Statement”), of Aktis Oncology, Inc. (the “Company”), and in connection with the completion of the initial public offering (the “IPO”) of the Company’s common stock, par value $0.0001 per share (the “Common Stock”), on January 12, 2026, the Company filed its amended and restated certificate of incorporation (the “Amended and Restated Certificate”) with the Secretary of State of the State of Delaware. The Amended and Restated Certificate amends and restates the Company’s existing sixth amended and restated certificate of incorporation, as amended, in its entirety to, among other things: (i) authorize 480,000,000 shares of Common Stock and 10,000,000 shares of Class A common stock, par value $0.0001 per share; (ii) eliminate all references to the previously-existing series of preferred stock; (iii) authorize 10,000,000 shares of undesignated preferred stock that may be issued from time to time by the Company’s board of directors (the “Board”) in one or more series; (iv) require the approval of at least two-thirds of the shares entitled to vote to remove a director for cause; (v) establish a classified Board, as a result of which, the successors to the directors whose terms have expired will be elected to serve from the time of election and qualification until the third annual meeting following their election; and (vi) eliminate the ability of the Company’s stockholders to take action by consent in lieu of a meeting.

The foregoing description of the Amended and Restated Certificate is qualified by reference to the full Amended and Restated Certificate, a copy of which is attached hereto as Exhibit 3.1 and is incorporated herein by reference.

Amended and Restated Bylaws

In addition, as previously disclosed in the Registration Statement, the amended and restated bylaws of the Company (the “Amended and Restated Bylaws”), became effective as of immediately prior to the completion of the IPO on January 12, 2026. The Amended and Restated Bylaws amend and restate the Company’s bylaws in their entirety to, among other things: (i) establish procedures relating to the presentation of stockholder proposals at stockholder meetings; (ii) establish procedures relating to the nomination of directors; (iii) modify the indemnification provisions for the Company’s directors and officers, and (iv) conform to the amended provisions of the Amended and Restated Certificate.

The foregoing description of the Amended and Restated Bylaws is qualified by reference to the full Amended and Restated Bylaws, a copy of which is attached hereto as Exhibit 3.2 and is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.		Description
3.1		Amended and Restated Certificate of Incorporation of Aktis Oncology, Inc.
3.2		Amended and Restated Bylaws of Aktis Oncology, Inc.
104		Cover Page Interactive Data File (embedded within the 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.

				AKTIS ONCOLOGY, INC.
Date: January 12, 2026				By:		/s/ Matthew Roden
						Matthew Roden, PhD
						President and Chief Executive Officer