Peraso Inc. — Director's Dealing 2007

Mar 1, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MoSys, Inc. (MOSY)
CIK: 0000890394
Period of Report: 2007-02-28

Reporting Person: BERG CARL E (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-02-28	Common Stock	M	40000	$1.00	Acquired	40000	Direct
2007-02-28	Common Stock	M	10000	$1.00	Acquired	50000	Direct
2007-02-28	Common Stock	M	10000	$1.00	Acquired	60000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-02-28	Employee Stock Option (right to buy)	$1.00	M	40000	Disposed	2007-03-10	Common Stock (40000)	Direct
2007-02-28	Employee Stock Option (right to buy)	$1.00	M	10000	Disposed	2008-03-04	Common Stock (10000)	Direct
2007-02-28	Employee Stock Option (right to buy)	$1.00	M	10000	Disposed	2009-12-17	Common Stock (10000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	124998	Indirect
Common Stock	4998	Indirect
Common Stock	124998	Indirect
Common Stock	4998	Indirect
Common Stock	124998	Indirect
Common Stock	4998	Indirect

Footnotes

F1: 124,998 shares are held by Berg & Berg Enterprises, LLC, of which Mr. Berg is the sole manager. Mr. Berg disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in them. Mr. Berg's wife owns 4,998 shares. Mr. Berg disclaims beneficial ownership of these shares.