UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13D/A
Under the Securities Exchange Act of 1934
(Amendment No. ________)*
PLUG POWER INC
(Name of Issuer)
Common Stock, no par value
(Title of Class of Securities)
72919P202
(CUSIP Number)
Interinvest Corporation
192 South Street, Suite 600
Boston, MA 02111
Attention: Stanley T. Schmidt
Telephone: (617-723-7870)
Name, Address and Telephone Number of Person Authorized to
Receive Notices and Communications)
September 26, 2013
(Date of Event which Requires Filing of this Statement)
If the filing person has previously filed a statement on Schedule 13G to
report the acquisition that is the subject of this Schedule 13D, and is
filing this schedule because of 240.13d-1(e), 240.13d-1(f) or 240.13d-
1(g), check the following box.
Note: Schedules filed in paper format shall include a signed original and
five copies of the schedule, including all exhibits. See Rule.13d-7 for
other parties to whom copies are to be sent.
* 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 disclosures provided in a prior cover page.
The information required on 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).
1. Names of Reporting Persons.
Interinvest Corporation Inc.
2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a)
(b) x
3. SEC Use Only
4. Source of Funds (See Instructions)
OO
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to
Items 2(d) or 2(e)
6. Citizenship or Place of Organization
Massachusetts
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
7. Sole Voting Power 0
8. Shared Voting Power 3,732,937
9. Sole Dispositive Power 0
10. Shared Dispositive Power 3,732,937
11. Aggregate Amount Beneficially Owned by Each Reporting Person
3,732,937
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares
(See Instructions)
13. Percent of Class Represented by Amount in Row (11) 3.66%
14. Type of Reporting Person (See Instructions) IA
1. Names of Reporting Persons.
Interinvest Consulting Corporation of Canada Limited
2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a)
(b) x
3. SEC Use Only
4. Source of Funds (See Instructions)
OO
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to
Items 2(d) or 2(e)
?
6. Citizenship or Place of Organization
Canada
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
7. Sole Voting Power 0
8. Shared Voting Power 30,000
9. Sole Dispositive Power 0
10. Shared Dispositive Power 30,000
11. Aggregate Amount Beneficially Owned by Each Reporting Person
30,000
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares
(See Instructions)
13. Percent of Class Represented by Amount in Row (11) 0.03%
14. Type of Reporting Person (See Instructions) IA
1. Names of Reporting Persons.
Interinvest (Bermuda) Ltd.
2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a)
(b) x
3. SEC Use Only
4. Source of Funds (See Instructions)
OO
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to
Items 2(d) or 2(e)
6. Citizenship or Place of Organization
Bermuda
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
7. Sole Voting Power 0
8. Shared Voting Power 1,002,000
9. Sole Dispositive Power 0
10. Shared Dispositive Power 1,002,000
11. Aggregate Amount Beneficially Owned by Each Reporting Person
1,002,000
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares
(See Instructions)
?
13. Percent of Class Represented by Amount in Row (11) 0.98%
14. Type of Reporting Person (See Instructions) IA
1. Names of Reporting Persons.
Hans P. Black
2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a)
(b) x
3. SEC Use Only
4. Source of Funds (See Instructions)
OO
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to
Items 2(d) or 2(e)
6. Citizenship or Place of Organization
Canada
Number of
Shares
Beneficially
Owned by
Each
Reporting
Person
With:
7. Sole Voting Power 46,000
8. Shared Voting Power 4,764,937
9. Sole Dispositive Power 46,000
10. Shared Dispositive Power 4,764,937
11. Aggregate Amount Beneficially Owned by Each Reporting Person
4,810,937
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares
(See Instructions)
?
13. Percent of Class Represented by Amount in Row (11) 4.72%
14. Type of Reporting Person (See Instructions) IN
ITEM 1. SECURITY AND ISSUER
This statement relates to the Common Stock, no par value (the "Common
Stock"), of Plug Power Inc. (the "Issuer") with principal
executive offices located at 968 Albany Shaker Road, Latham, NY 12110.
ITEM 2. IDENTITY AND BACKGROUND
(a) The names of the persons filing this Schedule 13D are
Interinvest Corporation Inc., a Massachusetts corporation;
Interinvest (Bermuda) Ltd., a Bermuda corporation;
Interinvest Consulting Corporation of Canada Limited, a
Canadian corporation; and Hans P. Black, a citizen of
Canada. The foregoing persons are hereinafter sometimes
referred to collectively as the "Reporting Persons".
(b) The principal business address of Interinvest Corporation
Inc. is 192 South Street, Suite 600, Boston, MA 02111. The
principal business address of Interinvest (Bermuda) Ltd. is
LOM Bldg., 27 Reid Street, Hamilton HM 11, Bermuda. The principal
business address of Interinvest Consulting Corporation of
Canada Limited is 3655 rue Redpath, Montreal, QC H3G 2W8.
The principal business address of Hans P. Black is 3655 rue
Redpath, Montreal, QC H3G 2W8.
(c) The principal business of the Reporting Persons is the
furnishing of investment advisory services. The principal
occupation of Hans P. Black is serving as Chairman of
Interinvest Consulting Corporation of Canada Limited.
(d) During the last five years, none of the foregoing entities
have been convicted in a criminal proceeding.
(e) During the last five years, none of the foregoing entities
have been subject to a civil proceeding of the type
specified in Items 2(d) or (e) of Schedule 13D.
(f) Hans P. Black, a reporting person, is a citizen of Canada.
ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION
Since reporting in a SC 13D/A filing dated September 13, 2013, the
Reporting Persons have sold or transferred control of a net quantity
of 1,318,063 shares of Common Stock of the Issuer at prices between
$0.56/share to $0.74/share. The effect of these sales along with the
company's issuance of additional shares diluting the Reporting
Persons' previously reported position has been to decrease the
Reporting Persons' holdings of Common Stock of the Issuer from 6.17%
to 4.72%.
ITEM 4. PURPOSE OF TRANSACTION
The Reporting Persons originally acquired the Common Stock of
the Issuer for investment purposes, rather than as activist
investors. Over time, the Reporting Persons have had, and from
time to time may continue to have discussions with management,
other shareholders, and third parties regarding matters relating
to the financial condition, strategy, business, assets,
operations, capital structure and strategic plans of the Issuer.
The Reporting Persons transferred control of shares in non-market
transactions to a number of clients, none of whose positions in the
Issuer exceed 5%. The sales were done to meet the needs of a number
of the Reporting Persons' clients.
The Reporting Persons intend to review their investment in the
Issuer on a continuing basis. Depending on various factors,
including the Issuer's financial position and strategic direction,
the outcome of the discussions referenced above, actions taken by
the Board of Directors of the Issuer, price levels of the
securities of the Issuer, other investment opportunities available
to the Reporting Persons, conditions in the capital markets and
general economic and industry conditions, the Reporting Persons may
in the future take such actions with respect to their investments
in the Issuer as they deem appropriate, including purchasing
additional securities of the Issuer, selling some or all of the
Reporting Persons' respective holdings in the Issuer and/or
otherwise changing their intention with respect to any and all
matters referred to in Item 4 of Schedule 13D.
ITEM 5. INTEREST IN SECURITIES OF THE ISSUER
(a) The Reporting Persons beneficially own 4,810,937 shares of
Common Stock representing 4.72% of all of the outstanding shares of
101,900,000 shares of Common Stock outstanding as of September 30, 2013,
as reported by Bloomberg. Of the 4,764,937 shares held by the Reporting
Persons on behalf of their clients: Interinvest Corporation Inc.
holds 3,732,937 shares or 3.66% of Issuer's outstanding shares;
Interinvest Consulting Corporation of Canada Limited
holds 30,000 shares for a total of 0.03% of the Issuer's outstanding
shares; and Interinvest (Bermuda) Ltd. holds 1,002,000 shares for
clients for a total of 0.98% of the Issuer's outstanding shares. Hans P.
Black holds 40,000 shares or 0.04% of the Issuer's outstanding shares
for his own account and 6,000 shares or 0.01% for a related account under
his control.
(b) The Reporting Persons may be deemed to have the shared power to
vote or to direct the vote of (and the shared power to dispose of or
direct the disposition of) the 4,810,937 shares of Common Stock held.
This power is shared with the Reporting Persons' investment advisory
clients where applicable. Hans P. Black, by virtue of his relationship to
each of Interinvest Corporation Inc., Interinvest Consulting Corporation
of Canada Limited, and Interinvest (Bermuda) Ltd. may be deemed to
indirectly beneficially own 4,810,937 shares of Common Stock. Hans P.
Black disclaims beneficial ownership of such Common Stock for all other
purposes.
(c) The following describes all the transactions in Common Stock
that were effected during the past sixty days by the Reporting Persons,
many of which were previously reported in the September 13, 2013 SC 13D/A
filing:
Transaction Numberof Price/ Type of
Date Shares Value Share Transaction
Interinvest Corporation Inc.
8/6/2013 -100,000 51,139 $0.51 Sell
8/26/2013 -100,000 48,599 $0.49 Sell
8/28/2013 -100,000 55,079 $0.55 Sell
9/4/2013 -100,000 56,999 $0.57 Sell
9/5/2013 -100,000 60,419 $0.60 Sell
9/6/2013 -200,000 129,000 $0.65 Sell
9/9/2013 -900,000 651,850 $0.72 Sell
9/11/2013 +550,000 297,000 $0.54 Buy
9/12/2013 -300,000 169,350 $0.56 Sell
9/13/2013 -100,000 57,579 $0.58 Sell
9/16/2013 -215,000 124,826 $0.58 Sell
9/19/2013 -175,063 107,119 $0.61 Sell
9/25/2013 -300,000 189,326 $0.63 Sell
9/26/2013 -100,000 63,828 $0.64 Sell
9/27/2013 -100,000 66,978 $0.67 Sell
Interinvest (Bermuda) Ltd.
9/9/2013 -300,000 217,234 $0.72 Sell
9/11/2013 +200,000 108,000 $0.54 Buy
9/11/2013 -100,000 58,800 $0.59 Sell
9/16/2013 -100,000 58,060 $0.58 Sell
9/27/2013 -100,000 66,980 $0.67 Sell
9/30/2013 -100,000 74,000 $0.74 Sell
Interinvest Consulting Corporation of Canada Limited
None
Dr. Hans P. Black
None
(d) The investment advisory clients of Interinvest Corporation Inc.,
Interinvest Consulting Corporation of Canada Limited, and Interinvest
(Bermuda) Ltd. have the sole right to receive and the sole power to
direct the receipt of dividends from, and the proceeds of sale of,
any of the Securities beneficially owned by such Reporting Persons on
behalf of such clients. No such client has an interest that relates
to more than 5% of the Common Stock.
(e) Not applicable
ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH
RESPECT TO SECURITIES OF THE ISSUER
None of the shares of Common Stock held by the Reporting Persons have
been pledged or are otherwise subject to a contingency the occurrence of
which would give a third party voting power or investment power over the
Common Stock.
ITEM 7. MATERIAL TO BE FILED AS EXHIBITS
Exhibit 99.1 Joint Filing Agreement, dated as of December 12, 2008
among Interinvest Corporation Inc., Interinvest Consulting Corporation of
Canada Limited, Interinvest (Bermuda) Ltd., and Hans P. Black
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: October 2, 2013
Interinvest Corporation Inc.
By: /s/ Stanley T. Schmidt
Stanley T. Schmidt
President,Interinvest Corporation Inc.
Interinvest Corporation of Canada Limited
By: /s/ Hans P. Black
Hans P. Black
Chairman
Interinvest (Bermuda) Limited
By: /s/ Hans P. Black
Hans P. Black
Director
By: /s/ Hans P. Black
Hans P. Black
EXHIBIT 99.1
JOINT FILING AGREEMENT
In accordance with the Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, each of the undersigned hereby agrees to the joint
filing, along with all other such undersigned, on behalf of the Reporting
Persons (as defined in the joint filing), of a statement on Schedule D
(including amendments thereto) with respect to the common stock of the
Issuer (as defined in the attached Schedule 13D), and agrees that this
agreement be included as an exhibit to such joint filing. This agreement
may be executed in any number of counterparts, all of which taken
together shall constitute one and the same instrument.
IN WITNESS WHEREOF, each of the undersigned has executed this agreement
as of this 12th day of December, 2008.
Interinvest Corporation, Inc.
By: /s/ Stanley T. Schmidt
Stanley T. Schmidt
President
Interinvest Corporation of Canada Limited
By: /s/ Hans P. Black
Hans P. Black
Chairman
Interinvest (Bermuda) Limited
By: /s/ Hans P. Black
Hans P. Black
Director
By: /s/ Hans P. Black
Hans P. Black
CUSIP No. 034918102 Page 9 of 10