Form 8-K

8-K — Anterix Inc.

Accession: 0001304492-26-000019

Filed: 2026-04-21

Period: 2026-04-21

CIK: 0001304492

SIC: 4813 (TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE))

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — atex-20260421.htm (Primary)

EX-99.1 (anterixpressrelease-benton.htm)

EX-99.2 (factsheet_4212026.htm)

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8-K

8-K (Primary)

Filename: atex-20260421.htm · Sequence: 1

atex-20260421

FALSE00013044923 Garret Mountain PlazaSuite 401Woodland ParkNJ00013044922026-04-212026-04-2100013044922023-04-212023-04-21

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): April 21, 2026

Anterix Inc.

(Exact name of registrant as specified in its charter)

Delaware 001-36827 33-0745043

(State or other jurisdiction (Commission File Number) (IRS Employer

of incorporation) Identification No.)

3 Garret Mountain Plaza

Suite 401

Woodland Park, NJ

07424

(Address of principal executive offices) (Zip Code)

(973) 771-0300

Registrant’s telephone number, including area code

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(b))

☐ 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 Name of Each Exchange on which registered

Common Stock, $0.0001 par value ATEX The Nasdaq Stock Market LLC

(NASDAQ Capital Market)

Indicate by check mark whether the registrant is an emerging growth company as defined in 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 8.01 Other Events.

On April 21, 2026, Anterix Inc. (the “Company”) announced that its wholly-owned subsidiary, PDV Spectrum Holding Company, LLC (“PDV”), entered into a spectrum license sale agreement with Public Utility District No.1 of Benton County (“Benton PUD”) under which PDV will sell to Benton PUD a 10MHz 900 MHz spectrum broadband license covering Benton County, Washington, following issuance by the Federal Communications Commission of a broadband license transferable from the Company to Benton PUD (the “Benton Agreement”).

The Company issued a press release announcing the Benton Agreement. A copy of the press release and a Fact Sheet containing additional information regarding the material terms of the Benton Agreement are being filed as Exhibit 99.1 and Exhibit 99.2 to this Current Report on Form 8-K, respectively, and each is incorporated herein by reference.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description

99.1

Press Release dated April 21, 2026

99.2

Fact Sheet dated April 21, 2026

104 Cover Page Interactive Data File (formatted as Inline XBRL)

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.

Anterix Inc.

Date: April 21, 2026

/s/ Gena L. Ashe

Gena L. Ashe

Chief Legal Officer and Corporate Secretary

EX-99.1

Filename: anterixpressrelease-benton.htm · Sequence: 2

Document

Anterix and Public Utility District No. 1 of Benton County Bring Private Wireless to the Pacific Northwest

Agreement to deploy 900 MHz network marks a defining moment for the Public Utility District market

WOODLAND PARK, NJ, APRIL 21, 2026 — Anterix (NASDAQ: ATEX), the leader in mission-critical private wireless broadband spectrum for utilities, today announced that it has entered into an agreement with Public Utility District No. 1 of Benton County (“Benton PUD”) of Kennewick, WA, to sell a 10 MHz 900 MHz spectrum license – establishing the first private wireless broadband deployment among publicly owned utilities in the Pacific Northwest.

Benton PUD’s 900 MHz network will be utility-owned, utility-controlled, and purpose-built for the operational demands of its 927-square-mile service territory in Benton County, Washington – serving more than 58,000 customers across the communities of Kennewick, Richland, Prosser, Benton City, and Finley. The network will enable advanced grid automation, field workforce connectivity, enhanced outage detection and restoration, and the resilience required to meet Washington's Clean Energy Transformation Act obligations head on.

This agreement underscores a broader shift in the utility sector. Public Utility Districts (PUDs), both community-owned and locally accountable, are now joining investor-owned utilities in advancing private wireless adoption. What began as early innovation is quickly becoming standard practice, as utilities across ownership models recognize purpose-built connectivity as a strategic necessity.

“Our agreement with Benton PUD reflects the accelerating adoption of private wireless across the utility sector,” said Anterix President & CEO Scott Lang. “PUDs are among the most mission-driven utilities in the country, directly accountable to the communities they serve. When a PUD invests in private wireless, it’s because the case is undeniable.”

Benton PUD General Manager Rick Dunn said, “We see private wireless broadband as foundational infrastructure for the next generation of the grid. By deploying a 900 MHz private network, we’re strengthening operations, enhancing safety and service, and building a more resilient system for the communities we serve. Through Anterix and its ecosystem, we’re translating this investment into measurable outcomes across our service territory.”

Anterix delivers more than spectrum. The company offers a full private wireless platform that enables utilities like Benton PUD to move from agreement to operational network with speed and confidence. Additional offerings include:

• TowerX™ - nationwide tower access and site optimization, reducing the time and cost of network buildout

• CatalyX® - a turnkey connectivity management solution for device provisioning and lifecycle management across private and public networks

• Anterix Active Ecosystem – a network of more than 150 technology and infrastructure partners purpose-built for utility deployment

Together, these capabilities compress the path from spectrum acquisition to operational connectivity – a critical advantage for PUDs and other utilities building for the first time.

Anterix Shareholder Contact

Natasha Vecchiarelli

Vice President, Investor Relations & Corporate Communications

Anterix

973-531-4397

nvecchiarelli@anterix.com

Anterix Media Contact

Paul Gaige

Vice President

Burson

504-957-1434

Paul.Gaige@burson.com

About Anterix

Anterix is transforming how critical infrastructure stays connected. As the nation’s leading connectivity partner for utilities, Anterix delivers more secure, private 900 MHz licensed spectrum and advanced intelligent infrastructure solutions that enhance efficiency, strengthen resilience, and accelerate digital transformation. Backed by a growing ecosystem of industry-leading partners, Anterix provides the connectivity foundation that powers a more resourceful and resilient future. Learn more at www.anterix.com.

Forward-Looking Statements

Certain statements contained in this press release, other than historical information, constitute forward-looking statements within the meaning of the federal securities laws. Words such as “believes,” “anticipates,” “estimates,” “expects,” “intends,” “aims,” “potential,” “will,” “would,” “could,” “considered,” “likely,” “estimate” and variations of these words and similar future or conditional expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements. Forward-looking statements include, but are not limited to, statements regarding: (i) the timing of payments under the Anterix-Benton PUD agreement, (ii) Anterix’s ability to clear any interference with incumbent users of the 900 MHz

broadband spectrum allocation in Benton PUD’s service area on a timely basis; and (iii) Anterix’s ability to qualify for and timely secure broadband licenses in Benton PUD’s service area. Any such forward-looking statements are based on the current expectations of Anterix’s management and are subject to a number of risks and uncertainties that could cause Anterix’s actual future results to differ materially from its management’s current expectations or those implied by the forward-looking statements. These risks and uncertainties include, but are not limited to: (i) Anterix may not be successful in commercializing its spectrum assets to its targeted utility and critical infrastructure customers on a timely basis and on favorable terms; (ii) Anterix may be unable to secure broadband licenses from the FCC on a timely and cost-effective basis; (iii) Anterix has a limited operating history with its current business plan, which makes it difficult to evaluate its prospects and future financial results and its business activities, strategic approaches and plans may not be successful; and (iv) the value of Anterix’s spectrum assets may fluctuate significantly based on supply and demand, as well as technical and regulatory changes. These and other risk factors that may affect Anterix’s future results of operations are identified and described in more detail in Anterix’s most recent filings on Forms 10-K and 10-Q and in other filings that it makes with the SEC from time to time. These documents are available on Anterix’s website at www.anterix.com under the Investor Relations section and on the SEC’s website at www.sec.gov. Accordingly, you should not rely upon forward-looking statements as predictions of future events. Except as required by applicable law, Anterix undertakes no obligation to update publicly or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

EX-99.2

Filename: factsheet_4212026.htm · Sequence: 3

Document

April 21, 2026

To our shareholders:

Anterix and Public Utility District No. 1 of Benton County (“Benton PUD”) entered into a 10 MHz 900 MHz spectrum license sale agreement (the “Benton Agreement”) covering Benton County, WA, for a total payment of $771,000. This will enable Benton PUD to deploy a private wireless broadband network that will provide the taxpayer-owned utility and the community it serves with transformative communications capabilities to support its energy leadership, cooperation, and stewardship.

Key components of the Agreement include:

•Assignment of 10 MHz of broadband spectrum, 896 - 901 MHz paired with 935 - 940 MHz, in Benton County, WA, following FCC issuance of a broadband license to Anterix.

•Delivery of the broadband spectrum is contemplated to occur within 18 months of contract execution.

•Total contract price of $13 million, with the first payment due by January 31, 2026, and final payment due by January 31, 2027. Final payment to Anterix is contingent on the broadband license being granted by the FCC and the broadband spectrum being assigned to CPS Energy.

•Total payments of $771,000; the timing of the first payment will occur within 30 days of contact execution, with final payment occurring when the broadband license is granted by the FCC, and broadband spectrum is assigned to Benton PUD.

In addition:

•As part of the Benton Agreement, Anterix and Benton PUD intend to collaborate to accelerate utility industry momentum for 900 MHz private networks and the Anterix Active Ecosystem.

•The Benton Agreement is subject to customary provisions regarding remedies, including refund of amounts paid, and termination rights, if a party fails to perform its contractual obligations. The Benton Agreement has been approved by both parties’ Boards of Directors.

Forward-Looking Statement

Certain statements contained in this fact sheet, other than historical information, constitute forward-looking statements within the meaning of the federal securities laws. Words such as “believes,” “anticipates,” “estimates,” “expects,” “intends,” “aims,” “potential,” “will,” “would,” “could,” “considered,” “likely,” “estimate” and variations of these words and similar future or conditional expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements. Forward-looking statements include, but are not limited to, statements regarding: (i) the timing of payments under the Anterix-Benton PUD agreement, (ii) Anterix’s ability to clear any interference with incumbent users of the 900 MHz broadband spectrum allocation in Benton PUD’s service area on a timely basis; and (iii) Anterix’s ability to qualify for and

timely secure broadband licenses in Benton PUD’s service area. Any such forward-looking statements are based on the current expectations of Anterix’s management and are subject to a number of risks and uncertainties that could cause Anterix’s actual future results to differ materially from its management’s current expectations or those implied by the forward-looking statements. These risks and uncertainties include, but are not limited to: (i) Anterix may not be successful in commercializing its spectrum assets to its targeted utility and critical infrastructure customers on a timely basis and on favorable terms; (ii) Anterix may be unable to secure broadband licenses from the FCC on a timely and cost-effective basis; (iii) Anterix has a limited operating history with its current business plan, which makes it difficult to evaluate its prospects and future financial results and its business activities, strategic approaches and plans may not be successful; and (iv) the value of Anterix’s spectrum assets may fluctuate significantly based on supply and demand, as well as technical and regulatory changes. These and other risk factors that may affect Anterix’s future results of operations are identified and described in more detail in Anterix’s most recent filings on Forms 10-K and 10-Q and in other filings that it makes with the SEC from time to time. These documents are available on Anterix’s website at www.anterix.com under the Investor Relations section and on the SEC’s website at www.sec.gov. Accordingly, you should not rely upon forward-looking statements as predictions of future events. Except as required by applicable law, Anterix undertakes no obligation to update publicly or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

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