| Date Filed | Type | Description |
| 02/21/2020 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals: |
| 02/11/2019 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/13/2018 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 02/09/2018 |
SC 13G
| PEIERLS E JEFFREY reports a 10% stake in MRI Interventions, Inc. |
| 02/09/2018 |
SC 13G/A
| PEIERLS E JEFFREY reports a 12% stake in Riot Blockchain, Inc., formerly known as Bioptix, Inc. |
| 02/09/2018 |
SC 13G/A
| PEIERLS E JEFFREY reports a 12% stake in Aerogrow International, Inc. |
| 02/24/2017 |
SC 13G/A
| PEIERLS E JEFFREY reports a 12% stake in Miragen Therapeutics, Inc. |
| 02/10/2017 |
SC 13G
| PEIERLS E JEFFREY reports a 8.9% stake in Enumeral Biomedical Holdings, Inc. |
| 02/10/2017 |
SC 13G/A
| PEIERLS E JEFFREY reports a 7.9% stake in Neurotrope, Inc. |
| 02/10/2017 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals: |
| 02/10/2016 |
SC 13G
| PEIERLS E JEFFREY reports a 10% stake in Neurotrope, Inc. |
| 03/20/2015 |
SC 13G
| PEIERLS E JEFFREY reports a 9.1% stake in SIGNAL GENETICS, INC. |
| 02/20/2015 |
SC 13G
| PEIERLS E JEFFREY reports a 7.1% stake in Biocept, Inc. |
| 02/17/2015 |
SC 13G
| PEIERLS E JEFFREY reports a 7.6% stake in Neurotrope, Inc. |
| 07/13/2009 |
SC 13D
| Form SC 13D - General statement of acquisition of beneficial ownership: |
| 05/23/2003 |
SC 13G
| Form SC 13G - Statement of acquisition of beneficial ownership by individuals |
| 05/23/2003 |
SC 13G
| PEIERLS E JEFFREY reports a 9% stake in DOCUMENT SCIENCES CORP. |