TENDER OFFER STATEMENT UNDER SECTION 14(d)(1) OR 13(e)(1)
OF THE SECURITIES EXCHANGE ACT OF 1934

ABP Trust
Adam D. Portnoy
Barry M. Portnoy
(Names of Filing Persons (other persons))

Adam D. Portnoy
ABP Acquisition LLC
Two Newton Place, 255 Washington Street, Suite 300
Newton, Massachusetts 02458-1634
(617) 928-1300
(Name, address and telephone number of person authorized
to receive notices and communications on behalf of the filing person)

Copies to:
Margaret R. Cohen, Esq.
Skadden, Arps, Slate, Meagher & Flom LLP
500 Boylston Street
Boston, Massachusetts 02116
(617) 573-4800

*: Estimated for purposes of calculating the filing fee only. This amount assumes the purchase of up to 18,000,000 shares of common stock, par value $.01 per share, of Five Star Quality Care, Inc., at a purchase price of $3.00 per share.
**: The amount of the filing fee, calculated in accordance with Rule 0-11 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), equals 0.0001159 of the transaction valuation.

Check the appropriate boxes below to designate any transactions to which the statement relates:

Check the following box if the filing is a final amendment reporting the results of the tender offer: ý

This Amendment No. 5 to the Tender Offer Statement on Schedule TO (this "Amendment No. 5") amends and supplements the Tender Offer Statement on Schedule TO filed with the U.S. Securities and Exchange Commission (the "Commission") on October 6, 2016, as previously amended and supplemented (the "Schedule TO") by ABP Acquisition LLC, a Maryland limited liability company ("Purchaser"), and the other bidders thereto. The Schedule TO relates to the offer by Purchaser to purchase up to 18,000,000 of the issued and outstanding shares of common stock, par value $.01 per share ("Shares"), of Five Star Quality Care, Inc., a Maryland corporation ("FVE"), at the offering price of $3.00 per Share, net to the seller in cash, without interest and less any required withholding taxes, upon the terms and subject to the conditions set forth in the Offer to Purchase dated October 6, 2016, as amended and supplemented by the Amendment and Supplement to the Offer to Purchase dated October 27, 2016 (the "Offer to Purchase") and the related Letter of Transmittal for Shares.

Except as specifically provided herein, the information contained in the Schedule TO and the Offer to Purchase remains unchanged and this Amendment No. 5 does not modify any of the information previously reported on the Schedule TO. This Amendment No. 5 should be read in conjunction with the Schedule TO, the Offer to Purchase and the Letter of Transmittal.

Item 11(c) of the Schedule TO is hereby amended and supplemented by adding the following information:

Based on the final count provided by the Depositary, the total number of Shares validly tendered in the Offer was 22,769,337 shares. Pursuant to the terms of the Offer, the number of shares that Purchaser purchased from tendering stockholders was prorated so that Purchaser purchased in the Offer a total of 17,999,999 shares.

After due 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.


(a)(1)(A)		Offer to Purchase, dated as of October 6, 2016.*
(a)(1)(B)		Letter of Transmittal for Shares.*
(a)(1)(C)		Letter to Brokers, Dealers, Banks, Trust Companies and other Nominees.*
(a)(1)(D)		Letter to Clients for use by Brokers, Dealers, Banks, Trust Companies and other Nominees.*
(a)(1)(E)		Press Release issued by ABP Acquisition LLC on October 3, 2016 (incorporated by reference to the Schedule TO-C filed by ABP Acquisition LLC on October 3, 2016).
(a)(1)(F)		Consent, Standstill, Registration Rights and Lock-Up Agreement, dated as of October 2, 2016, by and among Five Star Quality Care, Inc., ABP Trust, ABP Acquisition LLC, Barry M. Portnoy and Adam D. Portnoy.*
(a)(1)(G)		Consent Agreement, dated as of October 2, 2016, by and among Senior Housing Properties Trust, ABP Trust, ABP Acquisition LLC, Barry M. Portnoy and Adam D. Portnoy.*
(a)(1)(H)		Amendment and Supplement to the Offer to Purchase, dated as of October 27, 2016.**
(a)(1)(I)		Revised Letter of Transmittal for Shares.**
(a)(1)(J)		Revised Letter to Brokers, Dealers, Banks, Trust Companies and other Nominees.**
(a)(1)(K)		Revised Letter to Clients for use by Brokers, Dealers, Banks, Trust Companies and other Nominees.**
(a)(1)(L)		Press Release issued by ABP Acquisition LLC on October 28, 2016.***
(a)(1)(M)		Letter Agreement regarding execution and expense reimbursement of Credit Facility Letter Waiver and Consent, dated October 21, 2016, by and among Five Star Quality Care, Inc., ABP Trust, ABP Acquisition LLC, Barry M. Portnoy and Adam D. Portnoy.**
(a)(1)(N)		Letter dated November 1, 2016 from 400 Centre Street LLC to Gemini Properties, including the attachment thereto.#
(a)(1)(O)		Press Release issued by ABP Acquisition LLC on November 8, 2016.##
(a)(1)(P)		Press Release issued by ABP Acquisition LLC on November 11, 2016.

Transaction Valuation*		Amount of Filing Fee**



$54,000,000.00		$6,258.60


Amount Previously Paid:	$6,258.60	Filing Party:	ABP Acquisition LLC
Form or Registration No.	Schedule TO-T	Date Filed:	October 6, 2016
	Schedule TO-T/A		October 27, 2016


ABP Acquisition LLC
By:	/s/ ADAM D. PORTNOY
	Name:	Adam D. Portnoy
	Title:	President
ABP Trust
By:	/s/ ADAM D. PORTNOY
	Name:	Adam D. Portnoy
	Title:	President
Adam D. Portnoy
/s/ ADAM D. PORTNOY
Barry M. Portnoy
/s/ BARRY M. PORTNOY


Common Stock, par value $.01 per share (Titles of classes of securities)		33832D106 (CUSIP number of class of securities)