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 6, 2025 (October 1, 2025)

Frontier FundS

FRONTIER BALANCED FUND

FRONTIER DIVERSIFED FUND

FRONTIER HERITAGE FUND

FRONTIER LONG/SHORT COMMODITY FUND

FRONTIER MASTERS FUND

FRONTIER SELECT FUND

FRONTIER GLOBAL FUND

(Exact Name of Registrant as Specified in Charter)

Delaware		000-51274		36-6815533
(State or Other Jurisdiction of Incorporation)		(Commission File Number)		(IRS Employer Identification No.)

c/o Frontier Fund Management, LLC

25568 Genesee Trail Road

Golden, Colorado 80401

(Address of Principal Executive Offices)

(303) 454-5500

(Registrant’s telephone number, including area code)

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.

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act.

☐

Pre-commencement communications pursuant to Rule 14d-2b under the Exchange Act.

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

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. ☐

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered

Item 8.01. Other Events.

Effective October 1, 2025, Frontier Fund Management, the managing owner of the Registrant, removed exposure to the Quest Fixed Income Tracker Index Program (“QFIT”) of Quest Partners, LLC for each of Frontier Balanced Fund, Frontier Diversified Fund, Frontier Heritage Fund, Frontier Long/Short Commodity Fund, Frontier Masters Fund, Frontier Global Fund and Frontier Select Fund. QFIT was accessed through Frontier Trading Company XXXVIII’s investment in the Galaxy Plus Fund – Quest FIT Feeder Fund (531) LLC (“Quest FIT Feeder Fund”).

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.

	Frontier Funds
	(Registrant)

Date: October 6, 2025	By:	/s/ Patrick F. Hart III
		Patrick F. Hart III
		President and Chief Executive Officer of Frontier Fund Management, LLC, the Managing Owner

SIGNATURES

Frontier Funds 8-K