X0306 4 2013-03-14 0 0000740664 R F INDUSTRIES LTD RFIL 0001423093 Sandberg David 304 PARK AVE SOUTH 11TH FLOOR NEW YORK NY 10010 1 0 0 0 Common Stock 2013-03-14 4 S 0 16173 6.014 D 113788 I By The Red Oak Fund, L.P. Common Stock 2013-03-14 4 S 0 10827 6.014 D 76319 I By Pinnacle Fund, LLLP Common Stock 2013-03-15 4 S 0 23661 6.127 D 90127 I By The Red Oak Fund, L.P. Common Stock 2013-03-15 4 S 0 15839 6.127 D 60480 I By Pinnacle Fund, LLLP Stock Option 4.12 2012-08-30 2017-08-30 Common Stock 1911 1911 D Red Oak Partners, LLC ("ROP") serves as the general partner of The Red Oak Fund, LP, a Delaware limited partnership (the "Fund"), the direct owner of the subject securities. David Sandberg is the managing member of ROP and the Fund's portfolio manager. ROP serves as a managing member of Pinnacle Partners, LLC, a Colorado limited liability limited company ("Pinnacle Partners"). Pinnacle Partners is the general partner of Pinnacle Fund, LLLP, a Colorado limited liability limited partnership ("Pinnacle Fund"), the direct owner of the subject securities. Each Reporting Person disclaims beneficial ownership of all securities reported herein, except to the extent of their pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the shares for purposes of Section 16 of the Securities and Exchange Act of 1934 or for any other purpose. This transaction was executed in multiple trades at prices ranging from $5.97 to $6.06. The price reported in Column 4 of Table I reflects the weighted average sales price. The reporting persons hereby undertake to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which each of the individual transactions was effected. This transaction was executed in multiple trades at prices ranging from $5.95 to $6.23. The price reported in Column 4 of Table I reflects the weighted average sales price. The reporting persons hereby undertake to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which each of the individual transactions was effected. Open market transactions pursuant to a 10b5-1 trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended. Stock option granted to Mr. Sandberg in his capacity as a non-employee director (i.e. a director who is not employed by the Issuer as an officer or employee). David Sandberg 2013-03-18