Edgar Filing: Lowe Marcus D

Ownership Submission

FORM 4

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Lowe Marcus D

2. Issuer Name and Ticker or Trading Symbol
ADAPTEC INC [ADPT]

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

_____ Director	_____ 10% Owner
__X__ Officer (give title below)	_____ Other (specify below)
VP, Marketing & Business Dev.

(Last)

(First)

(Middle)

691 SOUTH MILPITAS BLVD.

3. Date of Earliest Transaction (Month/Day/Year)
12/16/2009

(Street)

MILPITAS, CA 95035

4. If Amendment, Date Original Filed(Month/Day/Year)

6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

(City)

(State)

(Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	12/16/2009		F		1,834 ⁽¹⁾	D	$ 3.29	11,499	D
Common Stock								196	I	by Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security
(Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code
(Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date
(Month/Day/Year)

7. Title and Amount of Underlying Securities
(Instr. 3 and 4)

8. Price of Derivative Security
(Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)

11. Nature of Indirect Beneficial Ownership
(Instr. 4)

Code

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Lowe Marcus D 691 SOUTH MILPITAS BLVD. MILPITAS, CA 95035			VP, Marketing & Business Dev.

Signatures

/s/ Marcus D. Lowe		12/18/2009
^**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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).
(1)	Represents shares that were automatically withheld to cover tax withholding obligations. On December 16, 2009, the Company accelerated 25% of the total restricted stock award granted on August 4, 2008 (as reported on Form 4 filed on August 6, 2008), not to exceed the unvested options as of November 6, 2009, as per the provisions of the 2004 Equity Incentive Plan.
Remarks: - On December 16, 2009, the Company accelerated 25% of the total stock options granted on November 13, 2008 (as reported on Form 4 filed on November 15, 2008), not to exceed the unvested options as of November 6, 2009, as per the provisions of the 2004 Equity Incentive Plan. - On December 16, 2009, the Company accelerated 25% of the total stock options granted on August 4, 2008 (as reported on Form 4 filed on August 6, 2008), not to exceed the unvested options as of November 6, 2009, as per the provisions of the 2004 Equity Incentive Plan. - On December 16, 2009, the Company accelerated 25% of the total stock options granted on July 11, 2005 (as reported on Form 3 filed on September 2, 2005), not to exceed the unvested options as of November 6, 2009, as per the provisions of the 2004 Equity Incentive Plan.

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