FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * NORTH TIDE CAPITAL, LLC   2. Issuer Name and Ticker or Trading Symbol SELECT MEDICAL HOLDINGS CORP [SEM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 500 BOYLSTON STREET, SUITE 1860 3. Date of Earliest Transaction (Month/Day/Year) 06/26/2015 (Street) BOSTON, MA 02116 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 06/26/2015   S   145,000 D $ 16.7741 13,305,000 I See Footnotes (1) (2) Common Stock 06/26/2015   S   500 D $ 16.84 13,304,500 I See Footnotes (1) (2) Common Stock 06/26/2015   S   150,000 D $ 16.48 13,154,500 I See Footnotes (1) (2) Common Stock 06/29/2015   S   19,400 D $ 16.544 13,135,100 I See Footnotes (1) (2) Common Stock 06/29/2015   S   115,100 D $ 16.2758 13,020,000 I See Footnotes (1) (2) Common Stock 06/29/2015   S   20,000 D $ 16.09 13,000,000 I See Footnotes (1) (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
NORTH TIDE CAPITAL, LLC 500 BOYLSTON STREET SUITE 1860 BOSTON, MA 02116		X
North Tide Capital Master, LP 500 BOYLSTON STREET SUITE 1860 BOSTON, MA 02116		X
Laughlin Conan 500 BOYLSTON STREET SUITE 1860 BOSTON, MA 02116		X

Signatures

/s/ NORTH TIDE CAPITAL, LLC, by Conan Laughlin, Manager		06/30/2015
**Signature of Reporting Person		Date
/s/ NORTH TIDE CAPITAL MASTER, LP, by North Tide Capital GP, LLC, Conan Laughlin, Manager		06/30/2015
**Signature of Reporting Person		Date
/s/ CONAN LAUGHLIN		06/30/2015
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Shares reported herein represent: as of the close of business on June 26, 2015, (i) 11,999,290 shares held by North Tide Capital Master, LP (the "Master Fund") and (ii) 1,275,000 shares held by held by a managed account (the "Account"); and as of the close of business on June 29, 2015, (i) 11,844,790 shares held by the Master Fund and (ii) 1,275,000 shares held by the Account. North Tide Capital, LLC ("North Tide") serves as investment manager for the Master Fund and the Account. Mr. Laughlin serves as manager of North Tide. Each of the Reporting Persons disclaims beneficial ownership of the shares reported herein except to the extent of its or his pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that any of the Reporting Persons is the beneficial owner of any such shares for purposes of Section 16(a) of the Securities Exchange Act of 1934 or for any other purpose.
(2)	Transaction effected by the Master Fund.

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