X0306 4/A 2013-03-20 2013-03-22 0 0001145255 HENNESSY ADVISORS INC HNNA 0001165097 SEAVEY THOMAS L 7250 REDWOOD BLVD., SUITE 200 NOVATO CA 94945 1 0 0 0 Common Stock 2013-03-19 2013-03-20 4 M 0 400 3.55 A 25525 D Common Stock 2013-03-19 2013-03-20 4 S 0 400 7.5 D 25125 D Common Stock 2013-03-22 4 M 0 768 3.55 A 25893 D Common Stock 2013-03-22 4 S 0 768 7.0547 D 25125 D Stock Option (right to acquire) 3.55 2013-03-19 2013-03-20 4 M 0 400 0 D 2003-08-06 2013-08-06 Common Stock 400 29350 D Stock Option (right to acquire) 3.55 2013-03-22 4 M 0 768 0 D 2003-08-06 2013-08-06 Common Stock 768 28582 D The Form 4 filed on March 22, 2013 reported that the entire stock option was exercised. On March 19, 2013, the reporting person actually exercised 400 shares. The Form 4 filed on March 22, 2013 reported that the entire stock option was exercised. On March 22, 2013, the reporting person actually exercised 768 shares. The Form 4 filed on March 22, 2013 reported that 500 shares were sold in this transaction. The reporting person actually sold 768 shares in this transaction. The Form 4 filed on March 22, 2013 reported the sale price of $7.00 per share in this transaction. The sale price was actually $7.0547 per share in this transaction. This price is a weighted average price. The prices actually received ranged from $7.00 to $7.25. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported in this Form 4 utilizing an average weighted price. /s/ Peter D. Fetzer, Attorney-in-Fact for Thomas L. Seavey 2013-03-22