UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A (AMENDMENT NO. 1) Under the Securities Exchange Act of 1934 SAIFUN SEMICONDUCTORS LTD. -------------------------------------------------------------------------------- (Name of Issuer) Ordinary Shares, par value 0.01 New Israeli Shekels per Share -------------------------------------------------------------------------------- (Title of class of Securities) M8233P102 (CUSIP Number) DECEMBER 31, 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: [_] Rule 13d-1(b) [_] Rule 13d-1(c) [X] 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). Page 1 of 11 Pages -------------------- ------------------ CUSIP NO. M8233P102 13G Page 2 of 11 Pages -------------------- ------------------ -------------------------------------------------------------------------------- 1 NAME OR REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - N/A Concord (K.T.) Investment Partners Ltd -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Israel -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 1,004,965 EACH ------------------------------------------------------------- REPORTING 7 SOLE DISPOSITIVE POWER PERSON 0 WITH ------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 1,004,965 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,004,965 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 3.19% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* CO. -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! -------------------- ------------------ CUSIP NO. M8233P102 13G Page 3 of 11 Pages -------------------- ------------------ -------------------------------------------------------------------------------- 1 NAME OR REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON - N/A KT Concord Venture Fund Israel LP -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Israel -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 146,078 EACH ------------------------------------------------------------- REPORTING 7 SOLE DISPOSITIVE POWER PERSON 0 WITH ------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 146,078 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 146,078 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.46% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! -------------------- ------------------ CUSIP NO. M8233P102 13G Page 4 of 11 Pages -------------------- ------------------ -------------------------------------------------------------------------------- 1 NAME OR REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON KT Concord Venture Fund (Cayman) LP IRS - Identification No. 98-0204618 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 730,744 EACH ------------------------------------------------------------- REPORTING 7 SOLE DISPOSITIVE POWER PERSON 0 WITH ------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 730,744 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 730,744 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 2.32% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! -------------------- ------------------ CUSIP NO. M8233P102 13G Page 5 of 11 Pages -------------------- ------------------ -------------------------------------------------------------------------------- 1 NAME OR REPORTING PERSON S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Concord Venture I Annex - B LP IRS - Identification No. EIN 98-0447155 -------------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [_] (b) [_] -------------------------------------------------------------------------------- 3 SEC USE ONLY -------------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands -------------------------------------------------------------------------------- 5 SOLE VOTING POWER NUMBER OF 0 SHARES ------------------------------------------------------------- BENEFICIALLY 6 SHARED VOTING POWER OWNED BY 128,143 EACH ------------------------------------------------------------- REPORTING 7 SOLE DISPOSITIVE POWER PERSON 0 WITH ------------------------------------------------------------- 8 SHARED DISPOSITIVE POWER 128,143 -------------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 128,143 -------------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* [_] -------------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9 0.41% -------------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON* PN -------------------------------------------------------------------------------- *SEE INSTRUCTION BEFORE FILLING OUT! -------------------- ------------------ CUSIP NO. M8233P102 13G Page 6 of 11 Pages -------------------- ------------------ ITEM 1. SECURITY AND ISSUER. (a) Name of Issuer Saifun Semiconductors Ltd. (b) Address of Issuer's Principal Executive Offices ELROD Building, 45 Hamelacha Street, Sappir Industrial Park, Netanya 42504, Israel ITEM 2. (a) Name of Person Filing (i) Concord (K.T.) Investment Partners Ltd., an Israeli company ("INVESTMENT PARTNERS") (ii) KT Concord Venture Fund Israel LP, an Israeli limited partnership ("ISRAEL FUND"); (iii) KT Concord Venture Fund (Cayman) LP, a Cayman Islands limited partnership ("CAYMAN FUND"); and (iv) Concord Venture I Annex -B LP a Cayman Islands limited partnership ("ANNEX FUND", and together with the foregoing entities, the "REPORTING PERSONS"), under the following capacities: Investment Partners is the General Partner of each of the Israel Fund, Cayman Fund and Annex Fund. Each of the Israel Fund, Cayman Fund and Annex Fund holds the number of Ordinary Shares of the Issuer set forth on the Cover Page, with respect to that Reporting Person. (b) Address of Principal Business Office The Principal business office of each of the Reporting Persons is 85 Medinat Hayehudim Street, Herzlia Israel. (c) Citizenship Investment Partners and Israel Fund- Israel Annex Fund and Cayman Fund - Cayman Islands (d) Title of Class of Securities Ordinary Shares, nominal value 0.01 New Israeli Shekels per share (e) Cusip Number M8233P102 -------------------- ------------------ CUSIP NO. M8233P102 13G Page 7 of 11 Pages -------------------- ------------------ ITEM 3. Not applicable. ITEM 4. OWNERSHIP. (a) Amount beneficially owned See Row 9 of cover page for each Reporting Person (b) Percent of Class See Row 11 of cover page for each Reporting Person (c) Number of shares to which such person has: (i) SOLE POWER TO VOTE OR DIRECT THE VOTE: See Row 5 of the cover page for each Reporting Person (ii) SOLE POWER TO VOTE OR DIRECT THE VOTE: See Row 6 of the cover page for each Reporting Person (i) SOLE POWER TO DISPOSE OR DIRECT THE DISPOSITION OF: See Row 7 of the cover page for each Reporting Person (ii) SOLE POWER TO DISPOSE OR DIRECT THE DISPOSITION OF: See Row 8 of the cover page for each Reporting Person ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS. Not applicable. ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON. Under certain circumstances set forth in the limited partnership and limited liability company agreements of the Reporting Persons, the Investment Partners may be deemed to have the right to receive dividends from, or the proceeds from, the sale of shares of the issuer owned by the remaining Reporting Persons. ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY. Not applicable. -------------------- ------------------ CUSIP NO. M8233P102 13G Page 8 of 11 Pages -------------------- ------------------ ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP. Not applicable. ITEM 9. NOTICE OF DISSOLUTION OF GROUP. Not applicable. ITEM 10. CERTIFICATION. Not applicable. -------------------- ------------------ CUSIP NO. M8233P102 13G Page 9 of 11 Pages -------------------- ------------------ 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. APRIL 4, 2007 ----------------- Date Concord (K.T.) Investment Partners Ltd. By: /s/ Matty Karp ------------------ Name: Matty Karp Title: Director By: /s/ Yair Safrai ------------------ Name: Yair Safrai Title: Director KT Concord Venture Fund Israel LP By: Concord (K.T.) Investment Partners Ltd. its General Partner By: /s/ Matty Karp ------------------ Name: Matty Karp Title: Director By: /s/ Yair Safrai ------------------- Name: Yair Safrai Title: Director KT Concord Venture Fund (Cayman) LP By: Concord (K.T.) Investment Partners Ltd. its General Partner By: /s/ Matty Karp ------------------ Name: Matty Karp Title: Director -------------------- ------------------- CUSIP NO. M8233P102 13G Page 10 of 11 Pages -------------------- ------------------- By: /s/ Yair Safrai ------------------- Name: Yair Safrai Title: Director Concord Venture I Annex -B LP By: Concord (K.T.) Investment Partners Ltd. its General Partner By: /s/ Matty Karp ------------------ Name: Matty Karp Title: Director By: /s/ Yair Safrai ------------------- Name: Yair Safrai Title: Director -------------------- ------------------- CUSIP NO. M8233P102 13G Page 11 of 11 Pages -------------------- ------------------- EXHIBIT INDEX EXHIBIT NO. DESCRIPTION ----------- ----------- Exhibit 1 Agreement of Joint Filing