Accustem Sciences (NASDAQ: ACUT) files Rule 12b-25 late 10-K notice

Rhea-AI Filing Summary

Accustem Sciences Inc. submitted a Rule 12b-25 notification for a late Form 10-K covering the period ended December 31, 2025, stating the report could not be filed on time due to time constraints in compiling and reviewing required information. The company says it will file the annual report no later than 15 days after the original due date. The notification is signed by Keeren Shah, Chief Financial Officer, dated March 31, 2026.

Key Figures

Commission File Number: 000-56257 Period Ended: December 31, 2025 Extension Commitment: 15 days +3 more

6 metrics

Commission File Number 000-56257 NT 10-K cover line

Period Ended December 31, 2025 Form 10-K fiscal period

Extension Commitment 15 days file no later than the 15th calendar day after due date

Alternate Extension (quarters) 5 days applies to quarterly reports under Rule 12b-25(b)

Notification Date March 31, 2026 signature date by CFO Keeren Shah

Contact Telephone (44) (0)20 7495 2379 listed phone for Keeren Shah

Key Terms

Rule 12b-25, Form 10-K, 15th calendar day, prescribed due date

4 terms

Rule 12b-25 regulatory

"If the subject report could not be filed without unreasonable effort or expense"

Rule 12b-25 is an SEC filing provision that lets a company notify regulators and the public that it cannot file a required periodic report (like a quarterly or annual report) on time and explains the reason for the delay. For investors, the notice is a formal heads-up that financial information will arrive late—similar to a company calling to say it will be late turning in homework—so it signals increased uncertainty and may affect trading and risk assessments until the filing is available.

Form 10-K regulatory

"The compilation, dissemination and review of the information required to be presented in the Form 10-K"

A Form 10-K is a comprehensive report that publicly traded companies are required to file annually with regulators. It provides a detailed overview of a company's financial health, operations, and risks, similar to a detailed health report. Investors use this information to assess the company's performance and make informed decisions about buying or selling its stock.

15th calendar day regulatory

"will file on or before the 15 th calendar day following the prescribed due date"

prescribed due date regulatory

"following the prescribed due date or the subject quarterly report"

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 12b-25

Commission File Number: 000-56257

NOTIFICATION OF LATE FILING

☒ Form 10-K	☐ Form 20-F	☐ Form 11-K	☐ Form 10-Q
☐ Form 10-D	☐ Form N-SAR	☐ Form N-CSR

For Period Ended: December 31, 2025

☐ Transition Report on Form 10-K	☐ Transition Report on Form 10-Q
☐ Transition Report on Form 20-F	☐ Transition Report on Form N-SAR
☐ Transition Report on Form 11-K

For the Transition Period Ended: _______________________________________

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates: _______________________________________

PART I

REGISTRANT INFORMATION

Full name of registrant	Accustem Sciences Inc.
Former name if applicable
Address of principal executive office	420 Lexington Ave, Suite 1402
City, state and zip code	New York, NY 10170

PART II

RULE 12b-25 (b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25 (b), the following should be completed. (Check box if appropriate.)

	(a)	The reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense;
☒	(b)	The subject annual report, semi-annual report, transition report on Form 10-K, 20-F, 11-K or Form N-SAR or Form N-CSR, or portion thereof will be filed on or before the 15th calendar day following the prescribed due date or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and
	(c)	The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III

NARRATIVE

State below in reasonable detail the reasons why Form 10-K, 11-K, 20-F, 10-Q, N-SAR, N-CSR, or the transition report portion thereof, could not be filed within the prescribed time period.

The compilation, dissemination and review of the information required to be presented in the Form 10-K for the relevant fiscal year has imposed time constraints that have rendered timely filing of the Form 10-K impracticable without undue hardship and expense to the registrant. The registrant undertakes the responsibility to file such annual report no later than 15 days after its original due date.

PART IV

OTHER INFORMATION

(1) Name and telephone number of person to contact in regard to this notification

Keeren Shah		(44)		(0)20 7495 2379
(Name)		(Area Code)		(Telephone Number)

(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If the answer is no, identify report(s).

☒ Yes ☐ No

(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?

☐ Yes ☒ No

If so: attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

-2-

Accustem Sciences, Inc.

(Name of Registrant as Specified in Charter)

Has caused this notification to be signed on its behalf by the undersigned thereunto duly authorized.

Dated: March 31, 2026		/s/ Keeren Shah
	By:	Keeren Shah
	Title:	Chief Financial Officer

-3-

FAQ

Why did Accustem Sciences (ACUT) file a Rule 12b-25 notification?

Accustem filed because compiling, disseminating and reviewing the Form 10-K information imposed time constraints that made timely filing impracticable. The company states the effort would cause undue hardship and expense and seeks the relief allowed under Rule 12b-25.

When does Accustem plan to file the delayed Form 10-K?

The company states it will file the annual report no later than the 15th calendar day following the original due date. That commitment appears in the notification and is the operative deadline under Rule 12b-25(b).

Does the notification indicate material changes to results of operations?

The form asks whether significant changes are anticipated, and the company checked the appropriate box. No narrative or quantitative explanation of any anticipated change was attached in the provided excerpt.

Who is the contact for this late filing notice at Accustem?

The notification lists Keeren Shah as the contact, with a telephone number shown as (44) (0)20 7495 2379. Shah is also the CFO and signed the notification dated March 31, 2026.

What does a Rule 12b-25 notification mean for investors in ACUT?

A Rule 12b-25 notice formally notifies the SEC of a late filing and permits a short extension when preparation imposes undue hardship. It does not itself change reported results; the company must still file the Form 10-K within the stated extension period.