SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9)* Techne Corporation - -------------------------------------------------------------------------------- (Name of Issuer) Common Stock - -------------------------------------------------------------------------------- (Title of Class of Securities) 878377 10 0 ----------------------------------------------------------------------- (CUSIP Number) *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 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). (Continued on following page(s)) Page 1 of 4 Pages SCHEDULE 13G - -------------------------- ------------------------------------ CUSIP No. 878377 10 0 Page 2 of 4 Pages ------- -------- - -------------------------- ------------------------------------ - ------------- ------------------------------------------------------------------ 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Roger C. Lucas - ------------- ------------------------------------------------------------------ 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] - ------------- ------------------------------------------------------------------ 3 SEC USE ONLY - ------------- ------------------------------------------------------------------ 4 CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. - ------------------------- --------- -------------------------------------------- NUMBER OF 5 SOLE VOTING POWER SHARES 226,228 (includes 60,000 shares BENEFICIALLY obtainable upon exercise of options OWNED BY exercisable at December 31, 1997) EACH REPORTING PERSON WITH --------- -------------------------------------------- 6 SHARED VOTING POWER 604,778 --------- -------------------------------------------- 7 SOLE DISPOSITIVE POWER 226,228 (includes 60,000 shares obtainable upon exercise of options exercisable at December 31, 1997) --------- -------------------------------------------- 8 SHARED DISPOSITIVE POWER 63,800 - ------------- ------------------------------------------------------------------ 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 831,006 (includes 60,000 shares obtainable upon exercise of options exercisable at December 31, 1997) - ------------- ------------------------------------------------------------------ 10 CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES* ____ - ------------- ------------------------------------------------------------------ 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 4.4% - ------------- ------------------------------------------------------------------ 12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IN - ------------- ------------------------------------------------------------------ Item 1(a) Name of Issuer: Techne Corporation Item 1(b) Address of Issuer's Principal Executive Offices: 614 McKinley Place N.E. Minneapolis, MN 55413 Item 2(a) Name of Person Filing: See Cover Page Item 1 Item 2(b) Address of Principal Business Office or, if none, residence: 41 E. Pleasant Lake Road North Oaks, MN 55127 Item 2(c) Citizenship: See Cover Page Item 4 Item 2(d) Title of Class of Securities: Common Stock Item 2(e) CUSIP No.: See Cover Page Item 3 Statement Filed Pursuant to Rules 13d-1(b) or 13d-2(b): Not applicable Item 4(a) Amount Beneficially Owned: See Cover Page Item 9 Item 4(b) Percent of Class: See Cover Page Item 11 Item 4(c) Number of Shares as to Which Such Person Has: (i) sole power to vote or to direct the vote: See Cover Page Item 5 (ii) shared power to vote or to direct the vote: See Cover Page Item 6 (iii) sole power to dispose or to direct the disposition of: See Cover Page Item 7 Page 3 of 4 Pages (iv) shared power to dispose or to direct the disposition of: See Cover Page Item 8 Item 5 Ownership of Five Percent or Less of a Class: Reporting person has ceased to be the beneficial owner of more than 5% of the Issuer's Common Stock. 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: 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: Not applicable 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 as of December 31, 1997. Dated: February 5, 1998 /s/ Roger C. Lucas Roger C. Lucas Page 4 of 4 Pages