UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 13)

RESEARCH IN MOTION LIMITED

(Name of Issuer)

Common Shares

(Title of Class of Securities)

760975-10-2

(CUSIP Number)

Check the appropriate box to designate the rule pursuant to which the Schedule is filed:

o Rule 13d-1(b)

o Rule 13d-1(c)

x Rule 13d-1(d)

*          The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

           The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No.  760975-10-2   13G Page 2 of 6 Pages  

(1)	Names of Reporting Persons Michael Lazaridis
(2)	Check the Appropriate Box if a Member of a Group (See Instructions)			(a)  o
				(b)  o
(3)	SEC Use Only
(4)	Citizenship or Place of Organization Canadian
Number of  Shares Beneficially Owned  by Each  Reporting  Person With		(5)	Sole Voting Power 29,904,297 as of December 31, 2012
		(6)	Shared Voting Power 0
		(7)	Sole Dispositive Power 29,904,297 as of December 31, 2012
		(8)	Shared Dispositive Power 0
(9)	Aggregate Amount Beneficially Owned by Each Reporting Person 29,904,297 as of December 31, 2012
(10)	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o
(11)	Percent of Class Represented by Amount in Row (9) 5.7%
(12)	Type of Reporting Person (See Instructions) IN

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Item 1(a).	Name of Issuer
	Research In Motion Limited
Item 1(b).	Address of Issuer's Principal Executive Offices
	295 Phillip Street
	Waterloo, Ontario N2L 3W8
Item 2(a).	Name of Person Filing
	Michael Lazaridis
	Of the 29,904,297 Common Shares beneficial­ly owned by Mr. Lazaridis as of December 31, 2012:
	(i)	26,001,678 Common Shares are registered in the name of 1258701 Ontario Limited, all the shares of which are owned by Mr. Lazaridis;
	(ii)	3,163,895 Common Shares are registered in the name of 2063227 Ontario Inc., all the shares of which are owned by Mr. Lazaridis;
	(iii)	392,246 Common Shares are registered in the name of Mr. Lazaridis;
	(iv)	146,478 Common Shares are held by Mr. Lazaridis as trustee of the Michael Lazaridis Family Trust II; and
	(v)	200,000 Common Shares are issuable on the exercise of stock options granted to Mr. Lazaridis that are exercisable within 60 days of December 31, 2012.
	The 29,904,297 Common Shares beneficially owned by Mr. Lazaridis does not include 127,500 Common Shares deliverable on the vesting of Restricted Share Units granted to Mr. Lazaridis that are exercisable/vest more than 60 days after December 31, 2012.
Item 2(b).	Address of Principal Business Office or, if None, Residence
	295 Phillip Street
	Waterloo, Ontario N2L 3W8
Item 2(c).	Citizenship
	Canadian

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Item 2(d).	Title of Class of Securities
	Common Shares
Item 2(e).	CUSIP Number
	760975-10-2
Item 3.	Filing Category
	Not applicable
Item 4(a).	Amount Beneficially Owned
	29,904,297 as of December 31, 2012
Item 4(b).	Percent of Class
	5.7%
Item 4(c).	Number of shares as to which the Reporting Person has:
	(i)	sole power to vote or direct the vote:
		29,904,297 as of December 31, 2012
	(ii)	shared power to vote or direct the vote:
		0
	(iii)	sole power to dispose or to direct the disposition:
		29,904,297 as of December 31, 2012
	(iv)	shared power to dispose or to direct the disposition:
		0
Item 5.	Ownership of Five Percent or Less of a Class
	Not applicable
Item 6.	Ownership of More Than Five Percent on Behalf of Another Person
	Not applicable

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Item 7.	Identification and Classification of the Subsidiary Which Acquired The Security Being Reported on By the Parent Holding Company
	Not applicable
Item 8.	Identification and Classification of Members of the Group
	Not applicable
Item 9.	Notice of Dissolution of Group
	Not applicable
Item 10.	Certification
	Not applicable

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SIGNATURE

After reasonable inquiry and to the best of the signatory's knowledge and belief, the signatory certifies that the information set forth in this statement is true, complete and correct.

Dated: February 14, 2013

  /s/ Michael Lazaridis

Michael Lazaridis

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