X0306 4 2015-05-08 1 0000869986 ADVANCED PHOTONIX INC API 0001326595 Williamson Steven 2925 BOARDWALK ANN ARBOR MI 48104 1 Chief Technology Officer Class A Common Stock 2015-05-08 4 D 0 64000 D 0 D Class A Common Stock 2015-05-08 4 D 0 1883200 D 0 I As Trustee of the Steven L. Williamson Trust Employee Stock Option (Right to Buy) 1.50 2015-05-08 4 D 0 12500 D 2008-12-10 2018-06-10 Common Stock 12500 0 D Employee Stock Option (Right to Buy) 1.50 2015-05-08 4 D 0 12500 D 2009-06-10 2018-06-10 Common Stock 12500 0 D Employee Stock Option (Right to Buy) 1.50 2015-05-08 4 D 0 12500 D 2010-06-10 2018-06-10 Common Stock 12500 0 D Employee Stock Option (Right to Buy) 1.50 2015-05-08 4 D 0 12500 D 2011-06-10 2018-06-10 Common Stock 12500 0 D Employee Stock Option (Right to Buy) 1.51 2015-05-08 4 D 0 47368 D 2011-12-27 2021-06-27 Common Stock 47368 0 D Employee Stock Option (Right to Buy) 0.63 2015-05-08 4 D 0 8333 D 2012-12-12 2022-06-12 Common Stock 8333 0 D Employee Stock Option (Right to Buy) 0.63 2015-05-08 4 D 0 8333 D 2013-06-12 2022-06-12 Common Stock 8333 0 D Employee Stock Option (Right to Buy) 0.63 2015-05-08 4 D 0 8334 D 2014-06-12 2022-06-12 Common Stock 8334 0 D Each share of Class A Common Stock was disposed of pursuant to the Agreement of Merger and Plan of Reorganization, dated as of January 30, 2015 (the "Merger Agreement"), by and among the Issuer, Luna Innovations Incorporated ("Luna") and API Merger Sub, Inc. in exchange for 0.31782 shares of Luna common stock having a market value of $ --- -per share on the effective date of the merger. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. The options were assumed by Luna pursuant to the Merger Agreement and replaced with an option to purchase a number of whole Luna common stock equal to the product of (i) the number of shares of Issuer common stock subject to such Issuer option multiplied by (ii) 0.31782 and rounding the resulting number down to the nearest whole number of shares of Luna common stock, at an exercise price per share equal to the quotient obtained by dividing (x) the exercise price per share of the Issuer option by (y) 0.31782 and rounding the resulting exercise price up to the nearest whole cent. /s/ Steven Williamson 2015-05-08