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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1386198	Memsic Inc	MEMS	Semiconductors & Related Devices (3674)	000000000

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1421552	Yang Zhao	One Tech Drive Ste 325 Andover MA 01810	Chief Executive Officer	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2011-04-04	140,000	$0.00	321,141	No	4	A	Direct
Common Stock	Disposition	2011-04-05	600	$3.40	320,541	No	4	S	Direct
Common Stock	Disposition	2011-04-05	300	$3.42	320,241	No	4	S	Direct
Common Stock	Disposition	2011-04-05	400	$3.43	319,841	No	4	S	Direct
Common Stock	Disposition	2011-04-05	100	$3.44	319,741	No	4	S	Direct
Common Stock	Disposition	2011-04-05	100	$3.58	319,641	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	A	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option(right to buy)	Acquisiton	2011-04-04	200,000	$0.00	200,000	$3.41

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
846,250		2021-04-04	No	4	A	Direct

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	468,862	Indirect	See Footnote 3

Footnotes

Option will vest as to 1/4 of the total shares on each successive anniversary of the date of grant such that the option will be entirely vested on the fourth anniversary of the date of grant.
On April 4, 2011, the Board of Directors, including the independent directors, approved the grant of restricted shares to the reporting person, subject to vesting restrictions. 87,500 shares of such grant shall vest on the first anniversary of the date of grant and the remainder shall vest in three equal installments on the second, third and fourth anniversaries of the date of grant.
Includes 135,675 shares of common stock held by the reporting person as trustee of the Yang Zhao Children' Grantor Retained Annuity Trust and 333,187 shares of common stock held by the reporting person as trustee of the Yang Zhao Grantor Retained Annutiy Trust FBO Naifeng Yang.