(QMCO)

Reporting relationship: 10%+ Owner
Issuer ticker: QMCO
Reported as of: 18 Dec 2025
Net transaction value: $0
SEC form: 3
Accepted by SEC: 23 Dec 2025, 21:37:30 UTC
Next SEC filing: 08 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Dialectic Technology SPV LLC, by John Fichthorn, Authorized Signatory

Key filing fact

Dialectic Technology SPV LLC filed Form 3 for QUANTUM CORP /DE/ (QMCO) on 23 Dec 2025.

Key facts

This page summarizes Dialectic Technology SPV LLC's Form 3 filing for QUANTUM CORP /DE/ (QMCO).
0 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 23 Dec 2025, 21:37.

Change

No earlier filing in this sequence is available for direct comparison.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Official SEC source

Ownership activity is grounded in SEC Form 3 disclosures.

View source filing

Reporting Owners (1)

CIK 0002055322 Primary reporting owner

Dialectic Technology SPV LLC

Relationship: 10%+ Owner
Address: 119 ROWAYTON AVENUE, NORWALK
Signature: /s/ Dialectic Technology SPV LLC, by John Fichthorn, Authorized Signatory
Signature date: 23 Dec 2025

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

QMCO holding Derivative

Warrants (right to buy)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
Date: 18 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,653,308
Exercise price: $8.81
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

On September 23, 2025 ("Issuance Date"), the Issuer issued to Dialectic Technology SPV LLC ("Dialectic") a warrant (the "Forbearance Warrant") to purchase 2,653,308 (as may be adjusted pursuant to the Forbearance Warrant) shares of common stock, par value $0.01 per share of the Issuer (the "Common Stock"), at an exercise price equal to $8.81 per share (as adjusted from time to time in accordance with the Forbearance Warrant) on or after the Issuance Date and until the date that is seven (7) years from the Issuance Date. The Forbearance Warrant is subject to a 4.99% beneficial ownership limitation and cannot be exercised in excess of such ownership limitation without waiver by Dialectic. On December 22, 2025, Dialectic provided notice to the Issuer of the waiver of such limitation, which will be effective February 21, 2026.