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 *
  TEW WILLIAM P PHD
 2. Date of Event Requiring Statement (Month/Day/Year)
03/21/2011		 3. Issuer Name and Ticker or Trading Symbol
BIOTIME INC [BTX]
(Last)
(First)
(Middle)
1301 HARBOR BAY PARKWAY		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP, Business Development
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

ALAMEDA, CA 94502		 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)
Common Shares, no par value 47,125 (1)
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
Warrants to Purchase Common Shares 03/21/2011 05/02/2014 Common Shares 29,247 (1) $ 10 D  
Options to Purchase Common Shares   (2) 03/20/2018 Common Shares 25,000 $ 7.47 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
TEW WILLIAM P PHD
1301 HARBOR BAY PARKWAY
ALAMEDA, CA 94502		       VP, Business Development  

Signatures

/s/ William P. Tew 03/30/2011
**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) Pursuant to the terms of the merger agreement under which the shares and warrants were issued, 10% of the shares and warrants are in escrow and are subject to forfeiture for a period of at least six months.
(2) 1/48th of the number of options will vest and become exercisable at the end of each full month of employment after March 21, 2011.

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