[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). |
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP 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(f) of the Investment Company Act of 1940 |
OMB Number: 3235-0287 Expires: December 31, 2001 Estimated average burden hours per response. . . . . 0.5 |
1. Name and Address of Reporting Person* Mechanical Technology Incorporated |
2. Issuer Name and Ticker or Trading Symbol Plug Power Inc. PLUG 3. I.R.S. Identification Number of Reporting Person, if an entity (voluntary) |
4. Statement for (Month/Year) March 2003 5. If Amendment, Date of Original (Month/Year) |
6. Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer Other Officer/Other Description 7. Individual or Joint/Group Filing (Check Applicable Line) X Individual Filing Joint/Group Filing |
1. Title of Security (Instr. 3) |
2. Transaction Date (Month/Day/Year) |
3. Transaction Code and Voluntary Code (Instr. 8) |
4. Securities Acquired (A) or Disposed (D) Of (Instr. 3, 4, and 5) |
5. Amount of Securities Beneficially Owned at End of Month (Instr. 3 and 4) |
6. Owner- ship Form: Direct(D) or Indirect (I) (Instr. 4) |
7. Nature of Indirect Beneficial Ownership (Instr. 4) |
Plug Power Inc. - Common Stock | 03/11/2003 |
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Plug Power Inc. - Common Stock | 03/12/2003 |
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Plug Power Inc. - Common Stock | 03/14/2003 |
7,604,727.00 | ||||
Mechanical Technology Incorporated - March 2003 |
Form 4 (continued) |
(e.g., puts, calls, warrants, options, convertible securities) |
1. Title of Derivative Security (Instr. 3) |
2. Conver- sion or Exercise Price of Deri- vative Security |
3. Transaction Date (Month/ Day/ Year) |
4. Transaction Code and Voluntary (V) Code (Instr.8) |
5. Number of Derivative Securities Acquired (A) or Disposed (D) Of (Instr. 3,4 and 5) |
6. Date Exercisable(DE) and Expiration Date(ED) (Month/Day/Year) |
7. Title and Amount of Underlying Securities (Instr. 3 and 4) |
8. Price of Derivative Security (Instr.5) |
9. Number of Derivative Securities Beneficially Owned at End of Month (Instr.4) |
10. Owner- ship Form of Deriv- ative Security: Direct (D) or Indirect (I) |
11. Nature of Indirect Beneficial Ownership (Instr.4) |
** 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. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number. |
________________________________ 03-17-2003 ** Signature of Reporting Person Date Mechanical Technology Incorporated Page 2 |