FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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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(Print or Type Responses)

1. Name and Address of Reporting Person *   Porter Orlin LLC 2. Date of Event Requiring Statement (Month/Day/Year) 07/13/2010 3. Issuer Name and Ticker or Trading Symbol Chesapeake Lodging Trust [CHSP] (Last) (First) (Middle) 666 FIFTH AVENUE, 34TH FLOOR 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) NEW YORK, NY 10103 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Shares 1,050,000 I (1) Footnote (2) Common Shares 9,350 I (1) Footnote (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Porter Orlin LLC 666 FIFTH AVENUE 34TH FLOOR NEW YORK, NY 10103	Â	  X	Â	Â
PORTER A ALEX C/O PORTER ORLIN LLC 666 FIFTH AVENUE, 34TH FLOOR NEW YORK, NY 10103	Â	  X	Â	Â
HULME GEOFFREY C/O PORTER ORLIN LLC 666 FIFTH AVENUE, 34TH FLOOR NEW YORK, NY 10103	Â	  X	Â	Â
FRIEDLAND JONATHAN W C/O PORTER ORLIN LLC 666 FIFTH AVENUE, 34TH FLOOR NEW YORK, NY 10103	Â	  X	Â	Â
ORLIN PAUL E C/O PORTER ORLIN LLC 666 FIFTH AVENUE, 34TH FLOOR NEW YORK, NY 10103	Â	  X	Â	Â

Signatures

Porter Orlin LLC, By: /s/ A. Alex Porter, Principal		07/15/2010
**Signature of Reporting Person		Date
/s/ A. Alex Porter (1)		07/15/2010
**Signature of Reporting Person		Date
/s/ Geoffrey Hulme (1)		07/15/2010
**Signature of Reporting Person		Date
/s/ Jonathan W. Friedland (1)		07/15/2010
**Signature of Reporting Person		Date
/s/ Paul Orlin (1)		07/15/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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)	Porter Orlin LLC, A. Alex Porter, Geoffrey Hulme, Jonathan W. Friedland and Paul Orlin (each, a "Reporting Person" and collectively, the "Reporting Persons") disclaim beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. The Reporting Persons affirmatively disclaim being a "group" for purposes of Section 16 of the Securities Exchange Act of 1934, as amended.
(2)	The Reporting Persons may be deemed to have beneficial ownership over these securities, which are held in the accounts of unregistered investment companies and managed accounts over which the Reporting Persons exercise investment discretion.
(3)	Paul Orlin may be deemed to have beneficial ownership over these securities, which are held in an account over which he exercises investment discretion.

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