Geoff G. Stedman Form 3/A QUANTUM / Geoff G. Stedman ownership change

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Stedman Geoff G.

(Last) (First) (Middle)

QUANTUM CORPORATION

224 AIRPORT PARKWAY, SUITE 300

(Street)

SAN JOSE CA 95110

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
07/28/2015

3. Issuer Name and Ticker or Trading Symbol
QUANTUM CORP /DE/ [ QTM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
SVP, StorNext Solutions

5. If Amendment, Date of Original Filed (Month/Day/Year)
08/05/2015

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock(1)	425,590	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 326,000 restricted stock units which will vest as follows: 83,000 will vest on each of 03/01/2016 and 03/01/2017 and 40,000 will vest on each of 07/01/2016, 07/01/2017, 07/01/2018 and 07/01/2019, and includes 34,000 performance stock units of which 17,000 will vest on each of July 1, 2016 and July 1, 2017.

Remarks:

	/s/ Astrid Becker-Celik, Attorney in Fact for Geoff Stedman	07/06/2016
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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