Every 424B that Quantum Corporation (QMCO) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow QMCO and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full QMCO filings page.
Quantum Corporation is registering for resale by existing investors up to 13,809,707 shares of common stock. These consist of 10,615,712 PIPE Shares sold in a June 1, 2026 private placement, 3,083,975 shares issued to Dialectic Technology SPV LLC as Share Consideration, and up to 110,020 Warrant Shares issuable upon exercise of a Conversion Warrant.
The company will not receive proceeds from any resale of these shares; it may receive cash only if the Conversion Warrant is exercised for cash. The PIPE raised $100 million at $9.42 per share, used to repay all existing term debt and for working capital and general corporate purposes. Concurrently, Dialectic voluntarily converted all outstanding 10.00% PIK Senior Secured Convertible Notes due 2028, and the notes and related indenture were canceled.
As additional consideration, Quantum issued Dialectic the Conversion Warrant to purchase 105,911 shares at an exercise price of $5.1940 per share, with anti-dilution adjustments, a 19.99% beneficial ownership cap, and a repurchase right of $844,255 for the unexercised portion after the fourth anniversary or upon specified corporate events. Shares of common stock outstanding were 39,374,500 as of July 1, 2026; this is a baseline figure, not the amount being registered. The company notes that resale of the registered shares, or the perception such sales could occur, could pressure its trading price.
Quantum Corporation registers up to 18,207,453 shares of common stock for resale by Dialectic Technology SPV LLC, representing the maximum number of shares issuable upon conversion of the Company’s 10.00% PIK Senior Secured Convertible Notes due 2028.
The prospectus states the Company will receive no proceeds from sales by the Selling Stockholder. It discloses 14,134,629 shares outstanding as of December 31, 2025 and describes the Convertible Notes (aggregate principal $54,718,114, initial conversion price $10.00, subject to quarterly resets with a $4.00 floor and other customary terms and registration rights).
Quantum Corporation is registering 2,653,308 shares of common stock for resale by Dialectic Technology SPV LLC, issuable upon exercise of a Forbearance Warrant. The warrant covers shares equal to 19.9% of the outstanding common stock as of the Transaction Agreement date, has a cash or net-share exercise feature at an exercise price of $8.81 per share, and is exercisable for seven years. Shares outstanding were 13,333,208 as of September 30, 2025.
The warrant was issued as consideration under a Fifteenth Amendment to a term loan, which defers cash interest for the quarters ending September 30 and December 31, 2025 while increasing the interest rate on the affected loans by 2.00%. Quantum will not receive proceeds from any resale of shares by the selling stockholder, but will receive cash if the warrant is exercised, which it plans to use for working capital, general corporate purposes and debt repayment. The selling stockholder also holds a right to require Quantum to repurchase the warrant for $20.0 million in specified events.