|
|
UNITED STATES |
|
|
|
SECURITIES AND EXCHANGE COMMISSION |
|
|
|
Washington, D.C. 20549 |
|
|
|
|
|
Under
the Securities Exchange Act of 1934
(Amendment No. 1)*
Active Power, Inc.
(Name of Issuer)
Common Stock, par value $0.001 per share
(Title of Class of Securities)
00504w100
(CUSIP Number)
September 29, 2006
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
|
ý |
Rule 13d-1(b) |
|
o |
Rule 13d-1(c) |
|
o |
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. 00504w100 |
|||||
|
|
|||||
|
|
1. |
Names of Reporting
Persons. I.R.S. Identification Nos. of above persons (entities only) |
|||
|
|
|||||
|
|
2. |
Check the Appropriate Box if a Member of a Group (See Instructions) |
|||
|
|
|
(a) |
o |
||
|
|
|
(b) |
o |
||
|
|
|||||
|
|
3. |
SEC Use Only |
|||
|
|
|||||
|
|
4. |
Citizenship or Place of
Organization |
|||
|
|
|
|
|||
|
Number of |
5. |
Sole Voting Power |
|||
|
|
|||||
|
6. |
Shared Voting Power |
||||
|
|
|||||
|
7. |
Sole Dispositive Power |
||||
|
|
|||||
|
8. |
Shared Dispositive Power |
||||
|
|
|||||
|
|
9. |
Aggregate Amount
Beneficially Owned by Each Reporting Person |
|||
|
|
|||||
|
|
10. |
Check if the Aggregate
Amount in Row (9) Excludes Certain Shares (See Instructions) o |
|||
|
|
|||||
|
|
11. |
Percent of Class
Represented by Amount in Row (9) |
|||
|
|
|||||
|
|
12. |
Type of Reporting Person
(See Instructions) |
|||
2
|
Item 1. |
||
|
|
(a) |
Name of Issuer |
|
|
(b) |
Address of Issuer’s
Principal Executive Offices |
|
|
||
|
Item 2. |
||
|
|
(a) |
Name of Person Filing |
|
|
(b) |
Address of Principal Business
Office or, if none, Residence |
|
|
(c) |
Citizenship |
|
|
(d) |
Title of Class of
Securities |
|
|
(e) |
CUSIP Number |
|
|
||
|
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: |
|
|
|
PowerShares Exchange-Traded Fund Trust is an investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8). |
|
3
|
Item 4. |
Ownership |
|
|
The ownership information as of September 29, 2006 has been incorporated by reference to Items 5-11 of the cover pages. |
|
|
|
|
Item 5. |
Ownership of Five 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 five percent of the class of securities, check the following o. |
|
|
|
|
|
Item 6. |
Ownership of More than Five 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. |
Certification |
|
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. |
|
4
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.
|
|
POWERSHARES CAPITAL MANAGEMENT LLC |
|
|
|
|
|
October 10, 2006 |
|
|
Date |
|
|
|
|
|
Signature |
|
|
|
|
|
Name/Title |
5