Statement of acquisition of beneficial ownership by individuals



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UNITED STATES




SECURITIES AND EXCHANGE COMMISSION




Washington, D.C. 20549










SCHEDULE 13G




Under the Securities Exchange Act of 1934




(Amendment No. 2)*










PowerShares
DB Energy Fund, a Series of PowerShares DB Multi-Sector Commodity Trust




(Name of Issuer)




Common Units of Beneficial Interest




(Title of Class of Securities)




73936B101




(CUSIP Number)




December 31, 2014




(Date of Event Which Requires Filing of this Statement)



Check the appropriate box to designate the rule pursuant to which this Schedule is filed:




x

Rule 13d-1(b)




¨

Rule 13d-1(c)




¨

Rule 13d-1(d)










*

The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information
which would alter the disclosures provided in a prior cover page.


The information required in the remainder of this cover page shall not be
deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act
(however, see the Notes).













CUSIP No. 73936B101























































































1





NAMES OF
REPORTING PERSONS





The Guardian Life Insurance Company of America



2





CHECK THE APPROPRIATE BOX IF A MEMBER
OF A GROUP (SEE INSTRUCTIONS)





(a)

¨

(b)

¨



3





SEC USE ONLY





4





CITIZENSHIP OR PLACE OF
ORGANIZATION





New York




NUMBER OF



SHARES



BENEFICIALLY



OWNED BY



EACH



REPORTING



PERSON



WITH:






5





SOLE VOTING POWER





518,766






6





SHARED VOTING POWER








7





SOLE DISPOSITIVE POWER





518,766






8





SHARED DISPOSITIVE POWER





9





AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON





518,766



10





CHECK IF THE AGGREGATE AMOUNT IN ROW
(9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)






¨



11





PERCENT OF CLASS REPRESENTED BY AMOUNT
IN ROW (9)





6.33%(1)



12





TYPE OF REPORTING PERSON (SEE
INSTRUCTIONS)





IC











(1)

Based on 8,200,040 Common Units of Beneficial Interest outstanding as of December 31, 2014 (as reported on Bloomberg LLP).








Item 1(a) Name of issuer:

PowerShares DB Energy Fund,

a

Series of Power Shares DB
Multi-Sector Commodity Trust



Item 1(b) Address of issuer’s principal executive offices:




c/o DB Commodity Services LLC




60 Wall Street




New York, New York 10005





2(a) Name of person
filing:

The Guardian Life Insurance Company of America



2(b) Address or principal business office or, if none, residence:




7 Hanover Square




New York, NY 10004





2(c) Citizenship:

New York



2(d) Title of class of
securities:

Common Units of Beneficial Interest



2(e) CUSIP No.:

73936B101




Item 3.

If this statement is filed pursuant to §§240.13d–1(b) or 240.13d–2(b) or (c), check whether the person filing is a:



(a)

¨

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);



(b)

¨

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);



(c)

x



Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);



(d)

¨

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C
80a–8);



(e)

¨

An investment adviser in accordance with §240.13d–1(b)(1)(ii)(E);



(f)

¨

An employee benefit plan or endowment fund in accordance with
§240.13d–1(b)(1)(ii)(F);



(g)

¨

A parent holding company or control person in
accordance with §240.13d–1(b)(1)(ii)(G);



(h)

¨

A savings associations as defined in
Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);



(i)

¨

A church plan
that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a–3);



(j)

¨

A non-U.S. institution in accordance with §240.13d–1(b)(1)(ii)(J);



(k)

¨

Group, in accordance with §240.13d–1(b)(1)(ii)(K). If filing as a non-U.S.
institution in accordance with §240.13d–1(b)(1)(ii)(J), please specify the type of institution:









Item 4.

Ownership



Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.



(a) Amount beneficially owned:

518,766



(b) Percent of
class:

6.33%



(c) Number of shares as to which the person has:



(i) Sole power to vote or to direct the vote

518,766



(ii)
Shared power to vote or to direct the vote

0

.



(iii) Sole power to dispose or to direct the disposition of

518,766

.



(iv) Shared power to dispose or to direct the disposition of

0

.




Instruction.

For computations regarding securities which represent a right to acquire an underlying security

see

§240.13d–3(d)(1).




Item 5.

Ownership of 5 Percent or Less of a Class. If this statement is being filed to report the fact that as of the date hereof the
reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following

¨

.




Item 6.

Ownership of More than 5 Percent on Behalf of Another Person.




Not Applicable




Item 7.

Identification and
Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.




Not Applicable




Item 8.

Identification and Classification of Members of the Group.




Not Applicable




Item 9.

Notice of Dissolution
of Group.




Not Applicable




Item 10.

Certifications



By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in
the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.








SIGNATURE



After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true,
complete and correct.













































Date: February 12, 2015




By:



/s/ Stewart Johnson







Name: Stewart Johnson





Title:   Managing Director

The above information was disclosed in a filing to the SEC. To see this filing in its entirety, click here.

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