Initial Statement of Beneficial Ownership

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Expires: January 31, 2008 Estimated average burden hours per response... 0.5
	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

1. Name and Address of Reporting Person ^*
VENTURETEC INC
2. Date of Event Requiring Statement (MM/DD/YYYY) 8/3/2006
3. Issuer Name and Ticker or Trading Symbol
OSIRIS THERAPEUTICS, INC. [OSIR]

(Last)        (First)        (Middle)
2001 ALICEANNA STREET
4. Relationship of Reporting Person(s) to Issuer (Check all applicable)
_____ Director                            ___ X ___ 10% Owner
_____ Officer (give title below)          _____ Other (specify below)

(Street)
BALTIMORE, MD 21231

(City)              (State)              (Zip) 5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)
_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

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 Stock 3600000 D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)

1. Title of Derivate Security
(Instr. 4) 2. Date Exercisable and Expiration Date
(MM/DD/YYYY) 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

Explanation of Responses:

Reporting Owners

Reporting Owner Name / Address Relationships

Director 10% Owner Officer Other

VENTURETEC INC
2001 ALICEANNA STREET
BALTIMORE, MD 21231
X

Signatures

Peter Friedli, President, by Philip R. Jacoby, Jr., Attorney-in-fact 8/3/2006

^** Signature of Reporting Person Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* 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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table I - Non-Derivative Securities Beneficially Owned
Common Stock	3600000	D

POWER OF ATTORNEY
For Executing Forms 3, 4 and 5
Know all persons by these presents, that the undersigned hereby constitutes and appoints each of Phil Jacoby and Cary Claiborne, and each or either of them, his true and lawful attorney-in-fact to:
(1) prepare and/or execute for and on behalf of the undersigned, in the undersigned's capacity the President of Venturetec, Inc, a greater than 10% stockholder of Osiris Therapeutics, Inc. (the "Company"), Forms 3, 4 and 5 to report transactions in the Company's securities reportable by the undersigned in accordance with the provisions of
Section 16(a) of the Securities Exchange Act of 1934, as amended and the rules and regulations promulgated thereunder;
(2) do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete the preparation and execution of any such Form 3, 4 or 5, and any amendment thereto, and the timely filing of any such Form 3, 4 or 5, and any amendment thereto, with the United States Securities and Exchange Commission and any other authority, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in his or her discretion; and
(3) resign as attorney-in-fact and appoint, as a replacement attorney-in-fact, any employee of the Company at the time of such resignation; provided that such resigning and replacement attorneys-in-fact shall send notice to the undersigned of any such replacement. The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform all and every act and thing whatsoever requisite, necessary and proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or any replacement attorney-in-fact, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, and any replacement attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934, as amended or the rules and regulations promulgated thereunder. This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact. IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 3rd day of August, 2006.

/s/ Peter Friedli, President_____
Signature
___Peter Friedli, President_____
Print Name

DMEAST #9572473 v1 2
DMEAST #9572473 v1

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 Stock	3600000	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		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)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
VENTURETEC INC 2001 ALICEANNA STREET BALTIMORE, MD 21231		X

Signatures
Peter Friedli, President, by Philip R. Jacoby, Jr., Attorney-in-fact		8/3/2006
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.