(QMCO)

Reporting relationship: Chief Revenue Officer
Issuer ticker: QMCO
Reported as of: 01 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Oct 2026, 16:42:49 UTC
Prior SEC filing: 05 Aug 2026
Source filing: View source filing
Reporting owner signature: Tara Ilges, attorney-in-fact for Anthony Craythorne

Key filing fact

Anthony Craythorne filed Form 4 for QUANTUM CORP /DE/ (QMCO) on 05 Oct 2026.

Key facts

This page summarizes Anthony Craythorne's Form 4 filing for QUANTUM CORP /DE/ (QMCO).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 05 Oct 2026, 16:42.

Change

Previous filing in this sequence was filed on 05 Aug 2026.
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

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002075430 Primary reporting owner

Craythorne Anthony

Relationship: Chief Revenue Officer
Address: C/O QUANTUM CORPORATION, 10770 E. BRIARWOOD AVE, CENTENNIAL
Signature: Tara Ilges, attorney-in-fact for Anthony Craythorne
Signature date: 05 Oct 2026

Reported derivative securities

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

QMCO transaction Derivative

Employee Stock Option (right to buy)

Award

Transaction value
Shares: +200,000
Change %
Price: $0.000000^*
Shares after: 200,000
Date: 01 Oct 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 200,000
Exercise price: $31.88
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

This nonstatutory stock option vests over four years in equal monthly installments beginning on November 1, 2026, with a vesting commencement date of October 1, 2026, subject to the Reporting Persons continued service through each vesting date.