SEC FORM 3

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^*

Johnson Russell

(Last)

(First)

(Middle)

691 SOUTH MILPITAS BLVD.

(Street)

MILPITAS

95035

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/27/2007

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

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

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	VP World Wide Sales

5. If Amendment, Date of 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

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	21,066	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)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	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)
Incentive Stock Option (right to buy)	12/19/2005⁽¹⁾	09/19/2010	Common Stock	4,764	$3.45	D
Incentive Stock Option (right to buy)	10/25/2005⁽¹⁾	05/25/2010	Common Stock	5,401	$3.93	D
Incentive Stock Option (right to buy)	09/14/2006⁽²⁾	06/14/2013	Common Stock	10,000	$4.24	D
Incentive Stock Option (right to buy)	02/13/2007⁽³⁾	11/13/2013	Common Stock	10,000	$4.48	D
Incentive Stock Option (right to buy)	12/30/2002⁽¹⁾	09/30/2009	Common Stock	9,000	$4.511	D
Incentive Stock Option (right to buy)	03/31/2005⁽⁴⁾	12/17/2009	Common Stock	17,810	$7.66	D
Incentive Stock Option (right to buy)	05/21/2004⁽⁵⁾	02/21/2011	Common Stock	7,000	$9.31	D
Incentive Stock Option (right to buy)	11/07/1998⁽¹⁾	08/07/2008	Common Stock	2,825	$10.875	D
Incentive Stock Option (right to buy)	07/10/2002⁽⁶⁾	04/10/2009	Common Stock	6,370	$12.21	D
Incentive Stock Option (right to buy)	02/13/2003⁽¹⁾	11/13/2007	Common Stock	5,997	$13.375	D
Incentive Stock Option (right to buy)	04/23/2002⁽¹⁾	01/23/2009	Common Stock	7,000	$15.97	D
Non-Qualified Stock Option (right to buy)	12/19/2005⁽¹⁾	09/19/2010	Common Stock	35,236	$3.45	D
Non-Qualified Stock Option (right to buy)	10/25/2005⁽¹⁾	05/25/2010	Common Stock	5,399	$3.93	D
Non-Qualified Stock Option (right to buy)	09/14/2006⁽²⁾	06/14/2013	Common Stock	10,000	$4.24	D
Non-Qualified Stock Option (right to buy)	02/13/2007⁽³⁾	11/13/2013	Common Stock	5,000	$4.48	D
Non-Qualified Stock Option (right to buy)	08/04/2003⁽⁷⁾	08/04/2010	Common Stock	7,500	$6.3	D
Non-Qualified Stock Option (right to buy)	03/31/2005⁽⁴⁾	12/17/2009	Common Stock	190	$7.66	D
Non-Qualified Stock Option (right to buy)	05/22/2001⁽¹⁾	11/22/2010	Common Stock	6,000	$11.9375	D
Non-Qualified Stock Option (right to buy)	10/21/1998⁽¹⁾	07/10/2007	Common Stock	3,000	$12.5	D
Non-Qualified Stock Option (right to buy)	10/21/1998⁽¹⁾	07/06/2008	Common Stock	5,650	$12.5	D
Non-Qualified Stock Option (right to buy)	01/01/2000⁽¹⁾	10/21/2008	Common Stock	200	$12.5	D
Non-Qualified Stock Option (right to buy)	11/13/2001⁽¹⁾	11/13/2007	Common Stock	503	$13.375	D
Non-Qualified Stock Option (right to buy)	12/28/2001⁽¹⁾	12/28/2008	Common Stock	4,517	$14.9	D
Non-Qualified Stock Option (right to buy)	12/27/2001⁽¹⁾	12/27/2008	Common Stock	11,150	$15.29	D

Explanation of Responses:

1. Options were fully vested prior to becoming a reporting officer.

2. A total of 20,000 stock options were granted on 06/14/2006, of which 10,000 are Incentive Stock Options and 10,000 are Non-Qualified Stock Options. The aggregate of these options vest at a rate of 8.33% of the total option shares at the end of each three month period, such that the total option shares will be fully vested on 06/14/2009.

3. A total of 15,000 stock options were granted on 11/13/2006, of which 10,000 are Incentive Stock Options and 5,000 are Non-Qualified Stock Options. The aggregate of these options vest at a rate of 8.33% of the total option shares at the end of each three month period, such that the total option shares will be fully vested on 11/13/2009.

4. A total of 18,000 stock options were granted on 12/17/2004, of which 17,810 are Incentive Stock Options and 190 are Non-Qualified Stock Options. These options have two vesting schedules, of which 8,000 stock options fully vested on 3/31/2007. The remainder 10,000 stock options vest at a rate of 25% on 3/31/2005 and an additional 8.33% of the total option shares at the end of each three month period thereafter, such that the total option shares will be fully vested on 3/31/2008.

5. A total of 7,000 stock options were granted on 02/21/2004. These options vest at a rate of 5% of the total option shares at the end of each three month period, such that the total option shares will be fully vested on 02/21/2009.

6. A total of 6,370 stock options were granted on 04/10/2002. These options vest at a rate of 5% of the total option shares at the end of each three month period, such that the total option shares will be fully vested on 04/10/2007.

7. A total of 7,500 stock options were granted on 08/04/2003. These options vest at a rate of 20% on 08/04/2003 and an additional 5% of the total option shares at the end of each three month period thereafter, such that the total option shares will be fully vested on 08/04/2007.

	By: John Westfield For: Russell Johnson	04/05/2007
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.