Ownership Submission
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 *
  Lewis Clapper Caskie
 2. Date of Event Requiring Statement (Month/Day/Year)
10/25/2007		 3. Issuer Name and Ticker or Trading Symbol
MAGELLAN HEALTH SERVICES INC [MGLN]
(Last)
(First)
(Middle)
55 NOD ROAD		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Human Resources Officer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

AVON, CT 06001		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ 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)
Ordinary Common Stock, $0.01 par value 2,868
D
 

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
Stock Option (right to buy) 01/05/2008 12/31/2008 Common Stock 14,998 $ 12.39 D  
Stock Option (right to buy) 01/05/2008 12/31/2008 Common Stock 3,750 $ 23.52 D  
Stock Option (right to buy)   (1) 03/10/2015 Common Stock 14,535 $ 34.57 D  
Stock Option (right to buy)   (2) 03/20/2016 Common Stock 11,250 $ 38.21 D  
Stock Option (right to buy)   (3) 05/16/2016 Common Stock 10,820 $ 38.52 D  
Stock Option (right to buy)   (4) 05/16/2016 Common Stock 7,213 $ 38.52 D  
Restricted Stock Units   (5)   (6) Common Stock 1,530 $ (6) D  
Stock Option (right to buy)   (7) 03/02/2017 Common Stock 21,590 $ 40.63 D  
Restricted Stock Units   (8)   (6) Common Stock 2,609 $ (6) D  
Stock Option (right to buy)   (9) 06/01/2017 Common Stock 11,250 $ 45.37 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Lewis Clapper Caskie
55 NOD ROAD
AVON, CT 06001		       Chief Human Resources Officer  

Signatures

/s/ Caskie Lewis Clapper 10/30/2007
**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) 4,845 options vested on March 10, 2007 and are currently exercisable. The remainder of 9,690 options shall vest in one-half increments on March 10 of each of 2008 and 2009.
(2) 3,750 options vested on March 20, 2007 and are currently exercisable. The remainder of 7,500 options shall vest in one-half increments on March 20, of each of 2008 and 2009.
(3) 3,607 options vested on May 16, 2007 and are currently exercisable. The remainder of 7,213 options shall vest in one-half increments on May 16, of each of 2008 and 2009.
(4) 2,405 options vested on May 16, 2007 and are currently exercisable. The remainder of 4,808 options shall vest in one-half increments on May 16, of each of 2008 and 2009.
(5) Restricted Stock Units shall vest in one-half increments on May 16, of each of 2008 and 2009.
(6) Not applicable.
(7) Options shall vest and become exercisable in one-third increments on March 2, of each of 2008, 2009 and 2010.
(8) Restricted Stock Units shall vest in one-third increments on March 2, of each 2008, 2009 and 2010.
(9) Options shall vest and become exercisable in one-third increments on June 1, of each of 2008, 2009 and 2010.

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