| Date | Name | Title | Type | Security | Shares | Price | Value | Ownership | Reported |
| 01/14/2019 | GENTY DENNIS N | CFO | Disposition | Common Stock | 118.3k | $0.00 | $0 | | 01/14/2019 |
| 01/14/2019 | Fulton Gregory G. | Director | Disposition | Common Stock | 4k | $0.00 | $0 | | 01/14/2019 |
| 01/14/2019 | Fulton Gregory G. | Director | Disposition | Common Stock | 11k | $0.00 | $0 | See footnote | 01/14/2019 |
| 01/14/2019 | Climaco John M | Director | Disposition | Common Stock | 4k | $0.00 | $0 | | 01/14/2019 |
| 01/14/2019 | BIRNER FREDERIC W J | CEO | Disposition | Common Stock | 264.2k | $0.00 | $0 | | 01/14/2019 |
| 01/14/2019 | Wolf Thomas D | Director | Disposition | Common Stock | 59.3k | $0.00 | $0 | | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Disposition | Common Stock | 421.3k | $0.00 | $0 | Palm Active Dental, LLC | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Common Stock | 630.7k | $5.00 | $3.2M | Palm Global Small Cap Master Fund LP | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Common Stock | 420.5k | $5.00 | $2.1M | Palm Active Dental, LLC | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Common Stock | 95.3k | $5.00 | $476.7k | Palm Active Dental II, LLC | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Common Stock | 1.3k | $0.00 | $0 | Palm Global Small Cap Master Fund LP | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Common Stock | 843 | $0.00 | $0 | Palm Active Dental, LLC | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Common Stock | 204 | $0.00 | $0 | Palm Active Dental II, LLC | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Disposition | Common Stock | 632k | $0.00 | $0 | Palm Global Small Cap Master Fund LP | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Disposition | Common Stock | 95.5k | $0.00 | $0 | Palm Active Dental II, LLC | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Disposition | Common Stock | 2k | $0.00 | $0 | Bradley M. Tirpak | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Convertible Senior Subordinated Secured Loan Notes | 0 | $5.00 | $0 | Palm Global Small Cap Master Fund LP | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Series A Convertible Preferred Stock | 6 | $0.00 | $0 | Palm Global Small Cap Master Fund LP | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Series A Convertible Preferred Stock | 4 | $0.00 | $0 | Palm Active Dental, LLC | 01/14/2019 |
| 01/14/2019 | Palm Management (US) LLC | 10% Owner | Conversion | Series A Convertible Preferred Stock | 1 | $0.00 | $0 | Palm Active Dental II, LP | 01/14/2019 |
| 09/01/2018 | Palm Management (US) LLC | 10% Owner | Other (acquisition) | Convertible Senior Subordinated Secured Loan Notes | 0 | $5.00 | $0 | Palm Global Small Cap Master Fund LP | 09/01/2018 |
| 09/01/2018 | Palm Management (US) LLC | 10% Owner | Other (disposition) | Convertible Senior Subordinated Secured Loan Notes | 0 | $5.00 | $0 | Palm Active Dental, LLC | 09/01/2018 |
| 09/01/2018 | Palm Management (US) LLC | 10% Owner | Other (acquisition) | Series A Convertible Preferred Stock | 3 | $0.00 | $0 | Palm Global Small Cap Master Fund LP | 09/01/2018 |
| 09/01/2018 | Palm Management (US) LLC | 10% Owner | Other (disposition) | Series A Convertible Preferred Stock | 3 | $0.00 | $0 | Palm Active Dental, LLC | 09/01/2018 |
| 08/15/2018 | Palm Management (US) LLC | 10% Owner | Purchase | Convertible Senior Subordinated Secured Loan Notes | 0 | $5.00 | $0 | Palm Active Dental II, LP | 08/15/2018 |
| 08/15/2018 | Palm Management (US) LLC | 10% Owner | Purchase | Series A Convertible Preferred Stock | 1 | $1,000.00 | $1000 | Palm Active Dental II, LP | 08/15/2018 |
| 07/25/2018 | Rubin Burton J. | Director | Grant | Common Stock | 2k | $0.00 | $0 | | 07/25/2018 |
| 06/20/2018 | Climaco John M | Director | Grant | Common Stock | 2k | $0.00 | $0 | | 06/20/2018 |
| 06/20/2018 | Fulton Gregory G. | Director | Grant | Common Stock | 2k | $0.00 | $0 | | 06/20/2018 |
| 06/20/2018 | Wolf Thomas D | Director | Grant | Common Stock | 2k | $0.00 | $0 | | 06/20/2018 |
| 06/20/2018 | VALUCK PAUL E | Director | Grant | Common Stock | 2k | $0.00 | $0 | | 06/20/2018 |
| 06/20/2018 | Horowitz Joshua | 10% Owner | Grant | Common Stock | 2k | $0.00 | $0 | | 06/20/2018 |
| 06/20/2018 | Tirpak Bradley M | Director | Grant | Common Stock | 2k | $0.00 | $0 | | 06/20/2018 |
| 06/13/2018 | BIRNER FREDERIC W J | CEO | Sale | Common Stock | 2.7k | $5.05 | $13.6k | | 06/13/2018 |
| 04/11/2018 | Wolf Thomas D | Director | Purchase | Common Stock | 5k | $6.00 | $30k | | 04/11/2018 |
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