SC 13D/A 1 to13da-070507.txt SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 -------------- SCHEDULE 13D (RULE 13D-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13D-1(A) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13D-2(A) Amendment #3 TECH/OPS SEVCON, INC. (NAME OF ISSUER) Common Stock $.10 par value (TITLE OF CLASS OF SECURITIES) 878293109 (CUSIP NUMBER) Paul D. Sonkin Hummingbird Management, LLC 460 Park Avenue, 12th Floor New York, New York 10022 ------------------------ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) April 27, 2007 ----------------- (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 Rule 13d-1(e), 13d-1(f) or 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(b) for other parties to whom copies are to be sent. -------- 1 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 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. 878293109 13D/A Page 2 of 10 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Management, LLC IRS No. 13-4082842 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY 211,925 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 211,925 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 211,925 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.6% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON* OO ================================================================================ ------------------------ ---------------------------- CUSIP No. 878293109 13D/A Page 3 of 10 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Paul D. Sonkin -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION UNITED STATES -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY 211,925 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 211,925 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 211,925 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.6% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO ================================================================================ . ------------------------ ---------------------------- CUSIP No. 878293109 13D/A Page 4 of 10 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Capital, LLC -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS OO -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY 211,925 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 211,925 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 211,925 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 6.6% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON OO ================================================================================ ------------------------ ---------------------------- CUSIP No. 878293109 13D/A Page 5 of 10 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Value Fund, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY 118,260 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 118,260 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 118,260 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 3.7% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON LP ================================================================================ ------------------------ ---------------------------- CUSIP No. 878293109 13D/A Page 6 of 10 Pages ------------------------ ---------------------------- ================================================================================ 1 NAME OF REPORTING PERSONS S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Hummingbird Microcap Value Fund, L.P. -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) / / (b) /X/ -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 SOURCE OF FUNDS WC -------------------------------------------------------------------------------- 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 2(d) OR 2(e) / / -------------------------------------------------------------------------------- 6 CITIZENSHIP OR PLACE OF ORGANIZATION DELAWARE -------------------------------------------------------------------------------- NUMBER OF 7 SOLE VOTING POWER SHARES BENEFICIALLY 93,665 OWNED BY EACH REPORTING PERSON WITH ----------------------------------------------------------------- 8 SHARED VOTING POWER -0- ----------------------------------------------------------------- 9 SOLE DISPOSITIVE POWER 93,665 ----------------------------------------------------------------- 10 SHARED DISPOSITIVE POWER -0- -------------------------------------------------------------------------------- 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 93,665 -------------------------------------------------------------------------------- 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES / / -------------------------------------------------------------------------------- 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.9% -------------------------------------------------------------------------------- 14 TYPE OF REPORTING PERSON LP ================================================================================ ------------------------ ---------------------------- CUSIP No. 878293109 13D/A Page 7 of 10 Pages ------------------------ ---------------------------- AMENDMENT NO. 3 TO SCHEDULE 13D This Amendment No. 3, dated May 7, 2007, to Schedule 13D is filed by the Reporting Person and amends Schedule 13D as previously filed by the Reporting Person with the Securities and Exchange Commission on April 30, 2003 (the "Schedule 13D"), relating to the common stock (the "Common Stock") of Tech/Ops Sevcon, Inc., a Delaware corporation. Items 3 and 5 of the Schedule 13D/A are hereby amended and restated, as follows: ITEM 3 SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION As of May 7, 2007, Hummingbird has caused each of HVF and Microcap Fund to invest approximately $486,741 and $378,418, respectively, in the Shares of the Issuer using their respective working capital. ITEM 5 INTEREST IN SECURITIES OF THE ISSUER (a) As investment manager of HVF, and Microcap, Hummingbird may be deemed to have the sole voting and investment authority over the Shares owned by HVF, Microcap, and Tarsier for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended ("Rule 13d-3"), may be deemed to be the beneficial owner of 211,925 Shares representing approximately 6.6% of the outstanding shares of the Issuer (based upon 3,211,021 shares of Common Stock outstanding as of February 13, 2007, as reported on Form 10-Q for the period ended December 31, 2006.) Hummingbird disclaims any beneficial ownership of the Shares covered by this Statement. ------------------------ ---------------------------- CUSIP No. 878293109 13D/A Page 8 of 10 Pages ------------------------ ---------------------------- HC, as the general partner of each of HVF, Microcap Fund, and Tarsier, Hummingbird may be deemed to have the sole voting and investment authority over the Shares owned by HVF, Microcap Fund, and Tarsier, for purposes of Rule 13d-3 under the Securities Exchange Act of 1934, as amended ("Rule 13d-3"), may be deemed to be the beneficial owner of 211,925 Shares representing approximately 6.6% of the outstanding shares of the Issuer (based upon 3,211,021 shares of Common Stock outstanding as of February 13, 2007, as reported on Form 10-Q for the period ended December 31, 2006.) HC disclaims any beneficial ownership of the Shares covered by this Statement. HVF is the beneficial owner of 118,260 Shares or 3.7% of the outstanding shares of the Issuer. Microcap is the beneficial owner of 93,665 Shares or 2.9% of the outstanding shares of the Issuer. (c) Hummingbird caused HVF to effect transactions in the Shares during the past 60 days as set forth below:

NUMBER OF DATE TYPE SHARES PRICE/SHARE ---- ---- ------ ----------- 4/24/2007 open market sale 24,000 9.584 4/24/2007 open market sale 10,500 9.510 4/25/2007 open market sale 2,500 9.195 4/27/2007 open market sale 22,950 9.818 4/30/2007 open market sale 2,100 10.686 4/30/2007 open market sale 2,400 10.490 5/1/2007 open market sale 3,000 10.490 5/4/2007 open market sale 23,750 10.888

------------------------ -------------------------- CUSIP No. 878293109 13D/A Page 9 of 10 Pages ------------------------ -------------------------- Hummingbird caused Microcap to effect transactions in the Shares duringthe past 60 days as set forth below:

NUMBER OF DATE TYPE SHARES PRICE/SHARE ---- ---- ------ ----------- 4/24/2007 open market sale 24,000 9.584 4/24/2007 open market sale 10,500 9.510 4/25/2007 open market sale 2,500 9.195 4/27/2007 open market sale 22,950 9.818 4/30/2007 open market sale 2,000 10.686 4/30/2007 open market sale 2,300 10.490 5/1/2007 open market sale 2,000 10.490 5/4/2007 open market sale 20,000 10.888

(d) Inapplicable. (e) Inapplicable. SIGNATURES After reasonable inquiry and to the best of our knowledge and belief, we certify that the information set forth in this statement is true, complete and correct. Dated: May 7, 2007 HUMMINGBIRD MANAGEMENT, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member /s/ Paul D. Sonkin ------------------------------------- PAUL D. SONKIN HUMMINGBIRD VALUE FUND, L.P. By: Hummingbird Capital, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member HUMMINGBIRD MICROCAP VALUE FUND, L.P. By: Hummingbird Capital, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member ------------------------ ---------------------------- CUSIP No. 878293109 13D/A Page 10 of 10 Pages ------------------------ ---------------------------- HUMMINGBIRD CAPITAL, LLC By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin Title: Managing Member By: /s/ Paul D. Sonkin --------------------------------- Name: Paul D. Sonkin