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Form 8-K

sec.gov

8-K — Bandwidth Inc.

Accession: 0001514416-26-000043

Filed: 2026-06-15

Period: 2026-06-15

CIK: 0001514416

SIC: 7372 (SERVICES-PREPACKAGED SOFTWARE)

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — band-20260615.htm (Primary)

EX-99.1 (q22026exh991convdebtlaunch.htm)

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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) June 15, 2026

___________________________________________________

BANDWIDTH INC.

(Exact name of registrant as specified in its charter)

___________________________________________________

Delaware 001-38285 56-2242657

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

2230 Bandmate Way

Raleigh, NC 27607

(Address of principal executive offices) (Zip Code)

(800) 808-5150

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)

☐ 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

Class A Common Stock, par value $0.001 per share BAND NASDAQ Global Select Market

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 8.01 Other Events.

On June 15, 2026, Bandwidth Inc. issued a press release announcing its proposed private offering of $275 million principal amount of convertible senior notes due 2032 pursuant to Rule 144A under the Securities Act of 1933, as amended. A copy of the press release is filed as Exhibit 99.1 hereto and is incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

Exhibit No. Description

99.1

Bandwidth Inc. press release, dated June 15, 2026

104 Cover Page Interactive File (the cover page tags are 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.

BANDWIDTH INC.

Date: June 15, 2026 By: /s/ R. Brandon Asbill

Name: R. Brandon Asbill

Title: Secretary

EX-99.1

EX-99.1

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Document

Bandwidth Inc. Announces Proposed Private Offering of

$275 Million of Convertible Senior Notes

RALEIGH, NC – June 15, 2026 – Bandwidth Inc. (NASDAQ: BAND) (“Bandwidth”), a leading global cloud communications company, today announced that it intends to offer and sell, subject to market and other conditions, $275 million aggregate principal amount of Convertible Senior Notes due 2032 (the “Notes”) in a private offering (the “Offering”) to qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”). Bandwidth also expects to grant the initial purchasers of the Notes a 13-day option to purchase up to an additional $41.25 million aggregate principal amount of the Notes solely to cover over-allotments.

The Notes will be senior, unsecured obligations of Bandwidth, and interest will be payable semi-annually in arrears. The Notes will be convertible into cash, shares of Bandwidth’s Class A common stock or a combination thereof, at Bandwidth’s election. The interest rate, initial conversion rate and other terms of the Notes are to be determined upon pricing of the Offering.

Bandwidth intends to use a portion of the net proceeds from the Offering to pay the cost of the capped call transactions described below. Bandwidth expects to use up to $10 million of the net proceeds from the Offering to repurchase shares of its Class A common stock concurrently with the pricing of the Offering in privately negotiated transactions effected with or through one of the initial purchasers of the Notes or its affiliate. These repurchases could increase (or reduce the size of any decrease in) the market price of Bandwidth’s Class A common stock or the Notes, and this activity could affect the market price of Bandwidth’s Class A common stock prior to, concurrently with or shortly after the pricing of the Notes, and could result in a higher effective conversion price for the Notes. Bandwidth expects to use a portion of the net proceeds from the Offering to repurchase a portion of its outstanding 0.50% convertible senior notes due 2028 (the “2028 Notes”) concurrently with the pricing of the Offering in privately negotiated transactions effected through one of the initial purchasers of the Notes or its affiliate, as Bandwidth’s agent. Bandwidth intends to use the remainder of the net proceeds to repay outstanding amounts under its credit facility and for working capital or other general corporate purposes.

In connection with the pricing of the Notes, Bandwidth expects to enter into one or more privately negotiated capped call transactions with certain of the initial purchasers of the Notes or their respective affiliates and/or other financial institutions (the “Option Counterparties”). The capped call transactions are expected generally to reduce the potential dilution to Bandwidth’s Class A common stock upon any conversion of the Notes and/or to offset any cash payments Bandwidth is required to make in excess of the principal amount of the converted Notes, as the case may be, upon any conversion of Notes, with such reduction and/or offset subject to a cap. If the initial purchasers of the Notes exercise their option to purchase additional Notes, Bandwidth expects to enter into additional capped call transactions with the Option Counterparties.

Bandwidth expects that, in connection with establishing their initial hedges of the capped call transactions, the Option Counterparties or their respective affiliates expect to purchase shares of Bandwidth’s Class A common stock and/or enter into various derivative transactions with respect to Bandwidth’s Class A common stock concurrently with or shortly after the pricing of the Notes. This activity could increase (or reduce the size of any decrease in) the market price of Bandwidth’s Class A common stock or the Notes at that time. In addition, Bandwidth expects that the Option Counterparties or their respective affiliates may modify their hedge positions by entering into or unwinding various derivatives with respect to the Class A common stock and/or by purchasing or selling shares of Bandwidth’s Class A common stock or other securities of Bandwidth in secondary market transactions following the pricing of the Notes and from time to time prior to the maturity of the Notes (and are likely to do so (x) during any observation period related to a conversion of the Notes or following any repurchase of the Notes by Bandwidth in connection with any redemption or fundamental change, (y) following any repurchase of the Notes by Bandwidth

other than in connection with any redemption or fundamental change if Bandwidth elects to unwind a corresponding portion of the capped call transactions in connection with such repurchase and (z) if Bandwidth otherwise unwinds all or a portion of the capped call transactions). This activity could also cause or avoid an increase or a decrease in the market price of Bandwidth’s Class A common stock or the Notes, which could affect the ability of holders of the Notes to convert the Notes and, to the extent the activity occurs during any observation period related to a conversion of the Notes, it could affect the number of shares of Class A common stock and value of the consideration that holders of the Notes will receive upon conversion of the Notes.

In connection with Bandwidth’s intended repurchase of a portion of its outstanding 2028 Notes concurrently with the pricing of the Offering as described above, Bandwidth expects that some or all of the holders of the 2028 Notes that it repurchases may purchase shares of Bandwidth’s Class A common stock in open market transactions to unwind hedge positions that such holders have with respect to their investment in the 2028 Notes. These open market purchases, in turn, may place upward pressure on the trading price of Bandwidth’s Class A common stock, causing its Class A common stock to trade at higher prices than would be the case in the absence of these purchases, which could result in a higher effective conversion price for the Notes.

The Notes will be offered only to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act. The offer and sale of the Notes and the shares of Bandwidth’s Class A common stock potentially issuable upon conversion of the Notes, if any, have not been, and will not be, registered under the Securities Act or the securities laws of any other jurisdiction, and unless so registered, the Notes and such shares, if any, may not be offered or sold in the United States except pursuant to an applicable exemption from such registration requirements.

Important Information

This press release does not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any offer or sale of, the Notes (or any shares of Bandwidth’s Class A common stock issuable upon conversion of the Notes) in any state or jurisdiction in which the offer, solicitation or sale would be unlawful prior to the registration or qualification thereof under the securities laws of any such state or jurisdiction.

About Bandwidth

Bandwidth Inc. (NASDAQ: BAND) is a global cloud communications company that helps enterprises deliver exceptional experiences through voice calling, text messaging and emergency services. Our solutions and our Communications Cloud, covering 65+ countries and ~90 percent of global GDP, are trusted by all the leaders in unified communications and cloud contact centers–including Amazon Web Services (AWS), Cisco, Google, Microsoft, RingCentral, Zoom, Genesys and Five9–as well as Global 2000 enterprises and SaaS builders like Docusign, Uber and Yosi Health. As a founder of the cloud communications revolution, we are the first and only global Communications Platform-as-a-Service (CPaaS) to offer a unique combination of composable APIs, AI capabilities, owner-operated network and broad regulatory experience. Our award-winning support teams help businesses around the world transform their communications every day.

Forward-Looking Statements

This press release contains or may imply “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934 and the Private Securities Litigation Reform Act of 1995. These forward-looking statements are not based on historical fact and include, but are not limited to, statements regarding our future financial and business performance, whether Bandwidth will be able to consummate the Offering, the terms of the Offering, the intended use of proceeds and the capped call transactions, expectations regarding actions of the Option Counterparties and their respective affiliates and the satisfaction of customary closing conditions with respect to the Offering. Any forward-looking statements are based on management’s current expectations of future events and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, risks and uncertainties related to the Offering, including that such transaction may not occur. For a discussion of other risks and uncertainties, and other

important factors, any of which could cause our actual results to differ from those contained in the forward-looking statements, see the section entitled “Risk Factors” in Bandwidth’s Form 10-K for the year ended December 31, 2025 and in Bandwidth’s Form 10-Q for the quarter ended March 31, 2026, each filed with the SEC and any subsequent reports that we file with the SEC after December 31, 2025. We caution you that the foregoing list may not contain all the forward-looking statements made in this press release. These forward-looking statements speak only as of the date hereof and Bandwidth undertakes no obligation to update forward-looking statements, and readers are cautioned not to place undue reliance on such forward-looking statements.

Investor Contact

Ankit Hira

Solebury Strategic Communications for Bandwidth

ir@bandwidth.com

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