SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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

1. Name and Address of Reporting Person^*

MPM BioVentures IV QP LP

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
PEPLIN INC [ PLIN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

Director	X	10% Owner
Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/11/2009

4. If Amendment, Date of 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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	11/11/2009		D		3,419,056⁽¹⁾	D	⁽²⁾	0	I	See Footnote⁽³⁾

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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Warrants (right to buy)	$7.86	11/11/2009		D			385,885	10/23/2008⁽⁴⁾	⁽⁴⁾	Common Stock	385,885	⁽⁴⁾	0	I	See Footnote⁽⁵⁾
Warrants (right to buy)⁽⁶⁾	$15.47⁽⁷⁾	11/11/2009		D			196,852⁽⁸⁾	06/26/2006⁽⁹⁾	⁽⁹⁾	Common Stock	196,852	⁽⁹⁾	0	I	See Footnote⁽¹⁰⁾
Warrants (right to buy)⁽⁶⁾	$15.47⁽⁷⁾	11/11/2009		D			210,937⁽⁸⁾	11/01/2006⁽¹¹⁾	⁽¹¹⁾	Common Stock	210,937	⁽¹¹⁾	0	I	See Footnote⁽¹²⁾

1. Name and Address of Reporting Person^*

MPM BioVentures IV QP LP

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BioVentures IV GP LLC

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BioVentures IV LLC

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM Asset Management Investors BV4 LLC

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BioVentures IV GmbH & Co. Beteiligungs KG

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BIOVENTURES III GP LP

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BIOVENTURES III LLC

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BIOVENTURES III LP

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BIOVENTURES III QP LP

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

MPM BIOVENTURES III GMBH & CO. Beteiligungs KG

(Last)

(First)

(Middle)

C/O MPM ASSET MANAGEMENT

200 CLARENDON STREET, 54TH FLOOR

(Street)

BOSTON

02116

(City)

(State)

(Zip)

Relationship of Reporting Person(s) to Issuer

Director	X	10% Owner
Officer (give title below)		Other (specify below)

Explanation of Responses:

1. Represents shares of Common Stock underlying CHESS Depository Interests ("CDIs") acquired by the reporting persons. CDIs are units of beneficial ownership in shares of Common Stock held by CHESS Depositary Nominees Pty Limited, a wholly-owned subsidiary of the Australian Stock Exchange. The CDIs are economically equivalent to shares of Common Stock of the Issuer on a 1-for-20 basis.

2. Disposed of pursuant to the merger agreement among LEO Pharma A/S, Plant Acquisition Sub, Inc. and Peplin, Inc. in exchange for $16.99 per share in cash on the effective date of the merger.

3. The Common Stock equivalent of CDIs were held as follows: 2,717,315 by MPM BioVentures IV-QP, L.P. ("BV IV QP"), 104,680 by MPM BioVentures IV GmbH & Co. Beteiligungs KG ("BV IV KG"), 77,261 by MPM Asset Management Investors BV4 LLC ("AM BV4"), 25,510 by MPM BioVentures III, LP. ("BV III"), 379,381 by MPM BioVentures III-QP, LP ("BV III QP"), 11,456 by MPM BioVentures III Parallel Fund, LP ("BV III PF"), 32,061 by MPM BioVentures III GmbH & Co. Beteiligungs KG ("BV III KG"), 62,375 by MPM BioVentures Strategic Fund, LP ("BV SF") and 9,017 by MPM Asset Management Investors 2004 BVIII LLC ("AM BV III"). Excludes fractional shares that result from the conversion of CDIs. MPM BioVentures IV GP LLC and MPM BioVentures IV LLC are the direct and indirect general partners of BV IV QP, BV IV KG and AM BV4. Vaughn M. Kailian, Ansbert Gadicke, Luke Evnin, Steven St. Peter, William Greene, James Paul Scopa, Ashley Dombkowski and John Vander Vort are the members of the general partner of BV IV QP, BV IV KG and members of AM BV4. MPM BioVentures III GP, L.P. ("BV III GP") and MPM BioVentures III LLC ("BV III LLC") are the direct and indirect general partners of BV III, BV III QP, BV III PF, BV III KG and BV SF. Luke Evnin and Ansbert Gadicke are Series A members of BV III LLC and managers of AM BV III. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his, her or its respective pecuniary interest therein.

4. These warrants were canceled in the merger with LEO Pharma A/S in exchange for a cash payment in the aggregate of $3,523,130.05, representing the difference between the exercise price of the warrants and the merger consideration per share ($16.99) multiplied by the total number of shares underlying the warrants.

5. The warrants were held as follows: 361,668 by BV IV QP, 13,933 by BV IV KG and 10,284 by AM BV4. Each member of the group disclaims beneficial ownership of the securities except to the extent of his, her or its respective pecuniary interest therein.

6. Represents options to purchase CDIs acquired by the Reporting Persons.

7. The exercise price of this warrant is denominated in Australian dollars (A$). The exercise price is A$0.84 per CDI, or A$16.80 per share of Common Stock issuable upon conversion of the CDIs. Based on the U.S. Dollar (US$)/A$ exchange rate in effect as of November 9, 2009, this equated to an exercise price, per share of Common Stock, of US$15.47.

8. Represents shares of Common Stock of the Issuer issuable upon conversion of the CDIs underlying the related warrant, and excludes fractional shares that would result from the conversion of such CDIs into shares of Common Stock.

9. These warrants were canceled in the merger with LEO Pharma A/S in exchange for a cash payment in the aggregate of $298,333.90, representing the difference between the exercise price of the warrants and the merger consideration per share ($16.99) multiplied by the total number of shares underlying the warrants.

10. The warrants were held as follows: 184,498 by BV IV QP, 7,108 by BV IV KG and 5,246 by AM BV4. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his, her or its respective pecuniary interest therein.

11. These warrants were canceled in the merger with LEO Pharma A/S in exchange for a cash payment in the aggregate of $319,680.00, representing the difference between the exercise price of the warrants and the merger consideration per share ($16.99) multiplied by the total number of shares underlying the warrants.

12. The warrants were held as follows: 197,699 by BV IV QP, 7,616 by BV IV KG and 5,622 by AM BV4. Each Reporting Person disclaims beneficial ownership of the securities except to the extent of his, her or its respective pecuniary interest therein.

Remarks:

See Form 4 for Vaughan Kailian for additional members of this joint filing.

	By Vaughn Kailian, member of MPM BioVentures IV LLC, the managing member of MPM BioVentures IV GP LLC, the general partner of MPM BioVentures IV-QP, L.P. /s/ Vaughn Kailian	11/13/2009
	By Vaughn Kailian, member of MPM BioVentures IV LLC, the managing member of MPM BioVentures IV GP LLC /s/ Vaughn Kailian	11/13/2009
	By Vaughn Kailian, member of MPM BioVentures IV LLC /s/ Vaughn Kailian	11/13/2009
	By Vaughn Kailian, member of MPM BioVentures IV LLC, the manager of MPM Asset Management Investors BV4 LLC /s/ Vaughn Kailian	11/13/2009
	By Vaughn M. Kailian, member of MPM BioVentures IV LLC, the managing member of MPM BioVentures IV GP LLC, the managing limited partner of MPM BioVentures IV GmbH & Co. Beteiligungs KG /s/ Vaughn M. Kailian	11/13/2009
	By Luke Evnin, Series A Member of MPM BioVentures III LLC, the general partner of MPM BioVentures III GP, LP /s/ Luke Evnin	11/13/2009
	By Luke Evnin, Series A Member of MPM BioVentures III LLC /s/ Luke Evnin	11/13/2009
	By Luke Evnin, Series A Member of MPM BioVentures III LLC, the general partner of MPM BioVentures III GP, LP, the general partner of MPM BioVentures III, LP /s/ Luke Evnin	11/13/2009
	By Luke Evnin, Series A Member of MPM BioVentures III LLC, the general partner of MPM BioVentures III GP, LP, the general partner of MPM BioVentures III-QP, LP /s/ Luke Evnin	11/13/2009
	By Luke Evnin, Series A Member of MPM BioVentures III LLC, the general partner of MPM BioVentures III GP, LP, in its capacity as the Managing Limited Partner of MPM BioVentures III GmbH & Co. Beteiligungs KG /s/ Luke Evnin	11/13/2009
	** 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 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).
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