UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* STRYKER CORPORATION (Name of Issuer) Common Stock, $0.10 par value (Title of Class of Securities) 863667 10 1 (CUSIP Number) Ronda E. Stryker Greenleaf Trust 211 South Rose Street Kalamazoo, Michigan 49007 (269) 553-6948 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) March 4, 2013 (Date of Event Which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this Schedule because of 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See 240.13d-7 for other parties to whom copies are to be sent. *The remainder of this cover page shall be filled out for a reporting persons 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 Section18 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). 1. Names of Reporting Persons. Ronda E. Stryker 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a) (b) 3. SEC Use Only 4. Source of Funds (See Instructions) N/A 5. Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e) 6. Citizenship or Place of Organization United States of America 7. Sole Voting Power 12,811,640 Number of Shares Bene- 8. Shared Voting Power 17,275,768 ficially Owned by Each 9. Sole Dispositive Power 12,811,640 Reporting Person With: 10. Shared Dispositive Power 17,275,768 11. Aggregate Amount Beneficially Owned by Each Reporting Person 30,087,408 12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions) 13. Percent of Class Represented by Amount in Row(11) 7.9% 14. Type of Reporting Person (See Instructions) IN Item 1. Security and Issuer The title of the class of equity securities to which this statement relates is common stock, par value $0.10 per share (Common Shares), of Stryker Corporation, a Michigan corporation (Company). The address of the principal executive office of the Company is 2825 Airview Boulevard, Kalamazoo, Michigan 49002. Item 2. Identity and Background (a)-(c) This statement is being filed by Ronda E. Stryker. Ronda E. Strykers business address is c/o Greenleaf Trust, 211 South Rose Street, Kalamazoo, Michigan 49007. Ronda E. Strykers present principal occupation or employment is Vice Chair and a director of Greenleaf Trust, a bank, Vice Chair and trustee of Spelman College, and a trustee of Kalamazoo College and the Kalamazoo Community Foundation. She is also a director of the Company, the granddaughter of the founder of the Company and the daughter of a former President of the Company. (d)-(e) During the past five years, Ronda E. Striker (i) has not been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) and (ii) has not been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. (f) Ronda E. Stryker is a citizen of the United States of America. Item 3. Source and Amount of Funds or Other Consideration This Schedule is being amended to report the adoption by Ronda E. Stryker of a Rule 10b5-1 plan governing shares that were previously reported as owned by Ronda E. Stryker on Schedule 13D. No funds were used in making the acquisitions giving rise to this amendment to Schedule 13D. Item 4. Purpose of Transaction This Schedule is being amended to report the adoption by Ronda E. Stryker of a Rule 10b5-1 plan governing shares that were previously reported as owned by Ronda E. Stryker on Schedule 13D. On March 4, 2013, Ronda E. Stryker entered into a Rule 10b5-1 Sales Trading Plan (Plan) with Raymond James & Associates, Inc. A copy of the Plan agreement is attached as Exhibit 1 to this amendment of Schedule 13D. The price term under the Plan is market value. Sales pursuant to the Plan may begin as early as April 3, 2013. The Plan terminates on the earlier of December 31, 2013 or such time as the aggregate, net sales proceeds received pursuant to the Plan (i.e., aggregate proceeds minus sale expenses and commissions) reaches $100 million. Apart from the Plan described above, Ronda E. Stryker intends to evaluate on an ongoing basis her investment in the Company and her options with respect to such investment. Ronda E. Stryker and her husband may, from time to time, acquire additional Common Shares (1) by the exercise or additional vesting of options, (2) by the grant of additional options or other equity awards by the Company or (3) from time to time for investment purposes if market conditions are favorable, in the open market, in privately negotiated transactions or otherwise. Ronda E. Stryker and her husband may also dispose of some or all of the Companys Common Shares that they beneficially own, periodically, by public or private sale (registered or unregistered and with or without the simultaneous sale of newly-issued Common Shares by the Company), gift, expiration of options, forfeiture of restricted shares or otherwise, including, without limitation, sales of Common Shares pursuant to Rule144 under the Securities Act of 1933, as amended, or otherwise. Ronda E. Stryker and her husband reserve the right not to acquire Common Shares at any given time and not to dispose of all or part of Common Shares they may own at any given time if they determine such acquisition or disposal is not in their best interests at the time in question. Other than as described above, Ronda E. Stryker does not have any current plans or proposals which relate to, or would result in, (a) any acquisition or disposition of securities of the Company, (b) any extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the Company or any of its subsidiaries, (c) any sale or transfer of a material amount of assets of the Company or any of its subsidiaries, (d) any change in the present board of directors or management of the Company, including any plans or proposals to change the number or term of directors or to fill any existing vacancies on the Board, (e) any material change in the Companys present capitalization or dividend policy, (f) any other material change in the Companys business or corporate structure, (g) any change in the Companys articles of incorporation or bylaws or other actions which may impede the acquisition of control of the Company by any person, (h) causing a class of securities of the Company to be delisted from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association, (i) a class of the Companys equity securities becoming eligible for termination of registration pursuant to Section 12(g)(4) of the Securities Exchange Act of 1934, as amended, or (j) any action similar to those enumerated above. Item 5. Interest in Securities of the Issuer (a) The aggregate number and percentage of Common Shares beneficially owned by Ronda E. Stryker as of March 13, 2013 are as follows: Number Percent Ronda E. Stryker 30,087,408 (1) 7.9% (2) (1) The shares shown above as beneficially owned by Ronda E. Stryker comprise (1) 153,578 Common Shares owned directly by Ronda E. Stryker, (2) 68,380 Common Shares that Ronda E. Stryker has the right to acquire within 60 days of February 28, 2013 upon the exercise of options granted to her by the Company, as more specifically described below (Option Shares), (3) 12,589,682 shares held by her in her revocable trust, of which trust she is the sole trustee and beneficiary during her lifetime, (4) 40,000 Common Shares owned by her husband, William D. Johnston, and over which she may be deemed to share voting and investment power, (5) 17,207,398 Common Shares held in the separate subtrust of the L. Lee Stryker Trust dated September10, 1974 created for the benefit of Ronda E. Stryker and her issue (LLS Subtrust), over which Subtrust Ronda E. Stryker may be deemed to share voting and investment power, as described below, and (6) 28,370 Common Shares owned by the Stryker Johnston Foundation, a Michigan non-profit corporation (Foundation), of which Ronda E. Stryker, her husband and her children are the trustees. (2) Based on the 380,200,593 Common Shares reported as outstanding as of September 30, 2012 in the Companys Form 10-Q dated October 22, 2012. Ronda E. Stryker has been granted the following options to purchase Common Shares under the Companys stock option plans: Percent Vested at Date of Number ExerciseMarch 1,Number Vesting Grant Shares Price 2013 Vested Schedule 10/14/03 10,000 $38.83 100% 10,000 One-fifth a year starting 10/14/04 03/05/04 8,000 $45.21 100% 8,000 One-fifth a year starting 03/05/05 04/22/05 8,000 $48.27 100% 8,000 One-fifth a year starting 04/22/06 02/07/06 8,500 $46.85 100% 8,500 One-fifth a year starting 02/07/07 02/14/07 7,700 $62.65 100% 7,700 One-fifth a year starting 02/14/08 02/12/08 7,400 $67.80 100% 7,400 One-fifth a year starting 02/12/09 02/10/09 12,375 $42.00 80% 9,900 One-fifth a year starting 02/10/10 02/23/10 9,995 $53.09 60% 5,997 One-fifth a year starting 02/23/11 02/09/11 4,735 $59.70 40% 1,894 One-fifth a year starting 02/09/12 2/21/12 4,945 $53.60 20% 989 One-fifth a year starting 2/21/13 2/21/12 1,647 $0.00 0% 0 100% 3/21/13 Total 83,297 68,380 The vesting of the unvested options described above will increase Ronda E. Strykers beneficial ownership of Common Shares. If the above options were fully vested, Ronda E. Stryker would beneficially own 30,102,325 Common Shares, or 7.9% of the outstanding Common Shares. (b) Ronda E. Stryker has sole voting and investment power over 12,811,640 Common Shares reported above as beneficially owned by her and held by her either directly, in her revocable trust or subject to options exercisable by her. William D. Johnston is Ronda E. Strykers husband. As a result, Ronda E. Stryker may be deemed to share voting and investment power over the Common Shares held by William D. Johnston. Ronda E. Stryker has a special power of appointment over the Companys Common Shares held in the LLS Subtrust and the power to change the trustee of that Subtrust. As a result she may be deemed to share voting and dispositive power over the Common Shares held in the LLS Subtrust. The LLS Subtrust is administered by Greenleaf Trust, a state chartered bank marketing fiduciary services to the general public. Ronda E. Stryker is a shareholder and director of Greenleaf Trust. Ronda E. Strykers husband, William D. Johnston, is the controlling shareholder of Greenleaf Trust. Greenleaf Trust holds Common Shares in its fiduciary capacity on behalf of various trust and investment management customers, some of whom have the right to receive, or the power to direct the receipt of, dividends from or the proceeds from the sale of these securities. Including the shares held in the LLS Subtrust, Greenleaf Trust has sole voting and dispositive power over 783,960 Common Shares held in accounts over which it has discretionary management power, and 31,126,618 Common Shares held in trusts over which it shares voting or dispositive power with co-trustees or beneficiaries, for a total of 31,910,578 Common Shares, or 8.4% of the outstanding Common Shares. Except for the Common Shares held in the LLS Subtrust, Ronda E. Stryker specifically disclaims beneficial ownership of, and this Schedule 13D does not report, shares held by Greenleaf Trust in accounts over which Ronda E. Stryker possesses neither fiduciary discretion nor powers or privileges as a beneficiary. Ronda E. Stryker also expressly disclaims status as a group with Greenleaf Trust or William D. Johnston for purposes of this Schedule13D. Ronda E. Stryker, her husband, William D. Johnston, and their adult children are trustees of the Foundation. Decisions of the Foundation are controlled by majority vote of the trustees. As a result, Ronda E. Stryker may be deemed to share voting and investment power over the Common Shares held in the Foundation. Ronda E. Stryker expressly disclaims status as a group with the Foundation, William D. Johnston or their adult children who are trustees of the Foundation for purposes of this Schedule 13D. William D. Johnstons and Greenleaf Trusts principal business address is c/o Greenleaf Trust, 211 South Rose Street, Kalamazoo, Michigan 49007. William D. Johnstons principal occupation or employment is Chairman of Greenleaf Trust, a Michigan state chartered bank marketing fiduciary services to the general public. Neither William D. Johnston nor Greenleaf Trust has, during the last five years, been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors). Neither William D. Johnston nor Greenleaf Trust has, during the last five years, been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws. William D. Johnston is a citizen of the United States of America. (c) Except for the following transactions, no transactions in the Common Shares were effected by Ronda E. Stryker during the 60 days prior to March 13, 2013: (1) on March 3, 2013, Ronda E. Stryker entered into the Rule 10b5-1 Sales Trading Plan (Plan) agreement attached as Exhibit 1, (2) on February 9, 2013, February 10, 2013, February 12, 2013, February 21, 2013 and February 23, 2013 portions of options previously granted to Ronda E. Stryker vested, as described in the table above, and (3) Sales occurred pursuant to the Rule 10b5-1 Plan adopted on March 4, 2013 as follows:None occurred 60 days prior to plan adoption. (d) Other than (1) Raymond James & Associates, Inc., with respect to the Plan, (2) Greenleaf Trust, with respect to the Common Shares in the LLS Subtrust, (3) the Foundation and its trustees, with respect to the Common Shares held by the Foundation, (3) William D. Johnston with respect to the Common Shares held by him, and (4) the beneficiaries of the LLS Subtrust, namely Ronda E. Stryker and her issue, no person is known to have the right to receive, or the power to direct the receipt of, dividends from, or the proceeds from the sale of, the Common Shares beneficially owned by Ronda E. Stryker. (e) Not applicable. Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer Other than (1) her agreement with Raymond James & Associates, Inc. pursuant to the Plan, (2) those relationships with other trustees of the Foundation and the other owners and directors of Greenleaf Trust, (3) Ronda E. Strykers oversight responsibilities for the Foundation, which are shared with the other trustees of the Foundation, (4) Ronda E. Strykers rights and privileges under the governing instrument of the LLS Subtrust, some of which are shared with the trustee of that Subtrust, (5) Ronda E. Strykers rights and privileges under her revocable trust instrument with respect to the Common Shares held in her revocable trust, and (6) the option agreements between Ronda E. Stryker and the Company and the related stock option plan with respect to the shares underlying stock options beneficially owned by Ronda E. Stryker, Ronda E. Stryker does not have any contracts, arrangements, understandings or relationships (legal or otherwise) with any person with respect to any Common Shares or any other securities of the Company, including, but not limited to, transfer or voting of any of the securities, finders fees, joint ventures, loan or option agreements, puts or calls, guarantees of profits or loss, division of profits or loss, or the giving or withholding of proxies. A copy of the March 4, 2013 Rule 10b5-1 Sales Trading Plan agreement with Raymond James & Associates, Inc. is attached as Exhibit 1 to this amendment of Schedule 13D. Copies of the Companys stock option plans and forms of option agreements for options granted under the Companys stock option plans are filed as exhibits to the Companys periodic reports under the Securities Exchange Act of 1934, as amended. Item 7. Material to be Filed as Exhibits 1. Rule 10b5-1 Sales Trading Plan agreement dated March 4, 2013 2. 2006 Long-Term Incentive Plan (as amended effective July 23, 2008), incorporated by reference to Exhibit 10 1 to the Companys Form 10Q dated August 7, 2008 (Commission File No 00009165) 3. Form of grant notice and terms and conditions for stock options granted to U.S. employees under the 2006 Long-Term Incentive Plan, incorporated by reference to Exhibit 10 ii to the Companys Form 10K dated for the year ended December 31, 2008 (Commission File No 00009165) 4. 1998 Stock Option Plan (as amended effective July 23, 2008), incorporated by reference to Exhibit 10 2 to the Companys Form 10Q dated August 7, 2008 (Commission File No 00009165) SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: March 13, 2013 Ronda E. Stryker CUSIP No. 863667 10 1 8 Page 5 of 8 pages 13D RES 02222012 CUSIP No. 863667 10 1 CUSIP No. 863667 10 1 Page 2 of 8 pages