SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G/A

(Rule 13d-102)

Under the Securities Exchange Act of 1934

(Amendment No. 6)*

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

*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 (the “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).

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Item 1(a).        Name of Issuer:

Five Star Quality Care, Inc. (the “Issuer”)

Item 1(b).        Address of Issuer’s Principal Executive Offices:

400 Centre Street

Newton, Massachusetts  02458

Item 2(a).        Name of Person Filing:

This Schedule 13G/A is being filed on behalf of each of the following persons (collectively, the “Reporting Persons”):

(1)                              Senior Housing Properties Trust (“SNH”);

(2)                              The RMR Group LLC (“RMR LLC”) (the manager of SNH);

(3)                              The RMR Group Inc. (“RMR INC”) (the managing member and a beneficial owner of RMR LLC);

(4)                              ABP Trust (“ABP Trust”) (the controlling shareholder of RMR INC and a beneficial owner of RMR LLC);

(5)                              Barry M. Portnoy (a managing director of the Issuer, a managing trustee of SNH, the chairman of RMR LLC, a managing director of RMR INC, and the majority beneficial owner and a trustee of ABP Trust); and

(6)                              Adam D. Portnoy (a managing trustee of SNH, the President and Chief Executive Officer of RMR LLC, a managing director and the President and Chief Executive Officer of RMR INC, and the President, a beneficial owner and a trustee of ABP Trust).

Item 2(b).        Address of Principal Business Office or, if None, Residence:

The principal business office of each Reporting Person is Two Newton Place, 255 Washington Street, Suite 300, Newton, Massachusetts 02458.

Item 2(c).         Citizenship:

SNH is a Maryland real estate investment trust.

RMR LLC is a Maryland limited liability company.

RMR INC is a Maryland corporation.

ABP Trust is a Maryland statutory trust.

Barry M. Portnoy is a United States citizen.

Adam D. Portnoy is a United States citizen.

Item 2(d).        Title of Class of Securities:

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The class of securities to which this Schedule 13G/A relates is shares of common stock, $.01 par value per share, of the Issuer (the “Common Shares”).

Item 2(e).         CUSIP Number:

The CUSIP number for the Common Shares is 33832D106.

Item 3.                          If this statement is filed pursuant to §§ 240.13d-1(b), or 240.13d-2(b) or (c), check whether the person filing is a:

Not applicable.

If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution: ___________________________

Item 4.                          Ownership.

(a)                               Amount beneficially owned:

SNH is the direct and beneficial owner of 4,235,000 Common Shares.

RMR LLC, RMR INC and ABP Trust do not directly own any Common Shares. RMR LLC, as manager of SNH, RMR INC, as managing member and a beneficial owner of RMR LLC, and ABP Trust, as the controlling shareholder of RMR INC and a beneficial owner of RMR LLC, may, under applicable regulatory definitions, be deemed to beneficially own (and have shared voting and dispositive power

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over) the 4,235,000 Common Shares directly and beneficially owned by SNH, but each disclaims such beneficial ownership.

Mr. Barry M. Portnoy is the direct and beneficial owner of 221,622 Common Shares. Mr. Adam D. Portnoy is the direct and beneficial owner of 108,000 Common Shares (of which 27,000 are subject to vesting requirements and will become fully vested, subject to the lapse of certain contingencies, annually through 2019). In their respective positions with RMR LLC, RMR INC and ABP Trust described in Item 2(a) above, Messrs. Barry M. Portnoy and Adam D. Portnoy may be deemed to beneficially own (and have shared voting and dispositive power over) the 4,235,000 Common Shares directly and beneficially owned by SNH, but each disclaims such beneficial ownership.

(b)                              Percent of class:

SNH is the direct and beneficial owner of approximately 8.6% of the outstanding Common Shares.

Messrs. Barry M. Portnoy and Adam D. Portnoy each directly and beneficially own less than 1% of the outstanding Common Shares, and RMR LLC, RMR INC and ABP Trust do not directly own any Common Shares. Reference is made to Item 4(a) above as to the Common Shares directly and beneficially owned by SNH that may, under applicable regulatory definitions, be deemed to be beneficially owned by RMR LLC, RMR INC, ABP Trust, or Messrs. Barry M. Portnoy or Adam D. Portnoy. If all such Common Shares were beneficially owned by such persons, their respective percentage beneficial ownership of the outstanding Common Shares would be approximately 8.6%, 8.6%, 8.6%, 9.0% and 8.8%.

The percentages of beneficial ownership reported in this Schedule 13G/A are based on 49,476,611 Common Shares outstanding as of December 31, 2015, such number of outstanding Common Shares having been provided to the Reporting Persons by the Issuer.

(c)                               Number of Shares as to which such person has:

(i)                                  Sole power to vote or to direct the vote:

(ii)                              Shared power to vote or to direct the vote:

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(iii)                          Sole power to dispose or to direct the disposition of:

(iv)                          Shared power to dispose or to direct the disposition of:

Reference is made to Item 4(a) above as to the Common Shares directly and beneficially owned by SNH that may, under applicable regulatory definitions, be deemed to be beneficially owned by RMR LLC, RMR INC, ABP Trust, or Messrs. Barry M. Portnoy or Adam D. Portnoy.

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.

Item 7.                          Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.

Not applicable.

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Item 8.                          Identification and Classification of Members of the Group.

Not applicable.

Item 9.                          Notice of Dissolution of Group.

Not applicable.

Item 10.                  Certifications.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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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.

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Attention. Intentional misstatements or omissions of fact constitute Federal criminal violations (see 18 U.S.C. 1001).

EXHIBIT INDEX