UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.F. 20549 SCHEDULE 13G TECHNE CORPORATION Common Stock 878377100 Item 1. a. Techne Corporation b. 614 McKinley Place, N.E. Minneapolis, Minnesota 55413 Item 2. a. D.F. Dent & Company, Inc. b. 2 East Read Street, 6th Floor Baltimore, Maryland 21202 c. Incorporated in the State of Maryland d. Common stock e. 878377100 Item 3. Investment adviser registered under section 203 of the Investment Advisers Act of 1940 Item 4. a. 1,212,143 b. 6.01% c. 1. 1,212,143 2. 0 3. 1,212,143 4. 0 Item 5. N/A Item 6. N/A Item 7. N/A Item 8. N/A Item 9. N/A