| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 01/26/2023 | INTERLINK ELECTRONICS INC | LINK | Other (disposition) | Common Stock | 4M | $0.00 | $0 | | 01/26/2023 |
| 03/26/2021 | RIDGEFIELD ACQUISITION CORP | RDGA | Purchase | Common Stock | 1.6M | $0.25 | $400k | | 03/26/2021 |
| 03/06/2020 | QUALSTAR CORP | QBAK | Exercise | Restricted Stock Units | 25k | $0.00 | $0 | | 03/06/2020 |
| 10/29/2019 | QUALSTAR CORP | QBAK | Grant | Restricted Stock Units (''RSUs'') | 50k | $0.00 | $0 | | 10/29/2019 |
| 09/23/2019 | QUALSTAR CORP | QBAK | Purchase | | 5k | $6.39 | $32k | By BKF Asset Holdings, Inc. | 09/20/2019 |
| 09/20/2019 | QUALSTAR CORP | QBAK | Purchase | | 3.3k | $6.27 | $20.6k | By BKF Asset Holdings, Inc. | 09/20/2019 |
| 09/16/2019 | QUALSTAR CORP | QBAK | Purchase | | 12.8k | $6.13 | $78.2k | By BKF Asset Holdings, Inc. | 08/22/2019 |
| 09/13/2019 | QUALSTAR CORP | QBAK | Purchase | | 22.4k | $5.99 | $133.9k | By BKF Asset Holdings, Inc. | 08/22/2019 |
| 09/09/2019 | QUALSTAR CORP | QBAK | Purchase | | 6k | $5.57 | $33.7k | By BKF Asset Holdings, Inc. | 09/05/2019 |
| 09/06/2019 | QUALSTAR CORP | QBAK | Purchase | | 12.4k | $5.56 | $69.1k | By BKF Asset Holdings, Inc. | 09/05/2019 |
| 09/05/2019 | QUALSTAR CORP | QBAK | Purchase | | 6.9k | $5.47 | $37.5k | By BKF Asset Holdings, Inc. | 09/05/2019 |
| 09/03/2019 | QUALSTAR CORP | QBAK | Purchase | | 10.3k | $5.04 | $52k | By BKF Asset Holdings, Inc. | 08/29/2019 |
| 08/30/2019 | QUALSTAR CORP | QBAK | Purchase | | 5.9k | $5.01 | $29.5k | By BKF Asset Holdings, Inc. | 08/29/2019 |
| 08/29/2019 | QUALSTAR CORP | QBAK | Purchase | | 7.7k | $4.98 | $38.4k | By BKF Asset Holdings, Inc. | 08/29/2019 |
| 08/28/2019 | QUALSTAR CORP | QBAK | Purchase | | 500 | $4.63 | $2.3k | By BKF Asset Holdings, Inc. | 08/26/2019 |
| 08/27/2019 | QUALSTAR CORP | QBAK | Purchase | | 1.9k | $4.61 | $8.6k | By BKF Asset Holdings, Inc. | 08/26/2019 |
| 08/26/2019 | QUALSTAR CORP | QBAK | Purchase | | 4.6k | $4.60 | $21.3k | By BKF Asset Holdings, Inc. | 08/26/2019 |
| 08/23/2019 | QUALSTAR CORP | QBAK | Purchase | | 1.1k | $4.63 | $4.9k | By BKF Asset Holdings, Inc. | 08/21/2019 |
| 08/22/2019 | QUALSTAR CORP | QBAK | Purchase | | 47 | $4.61 | $216.7 | By BKF Assets Holdings, Inc. | 08/22/2019 |
| 08/21/2019 | QUALSTAR CORP | QBAK | Purchase | | 1000 | $4.75 | $4.8k | By BKF Asset Holdings, Inc. | 08/21/2019 |
| 08/20/2019 | QUALSTAR CORP | QBAK | Purchase | | 3k | $4.51 | $13.3k | By BKF Asset Holdings, Inc. | 08/16/2019 |
| 08/19/2019 | QUALSTAR CORP | QBAK | Purchase | | 2.5k | $4.55 | $11.5k | By BKF Asset Holdings, Inc. | 08/16/2019 |
| 08/16/2019 | QUALSTAR CORP | QBAK | Purchase | | 1k | $4.48 | $4.6k | By BKF Asset Holdings, Inc. | 08/16/2019 |
| 05/31/2019 | QUALSTAR CORP | QBAK | Purchase | | 4k | $5.95 | $23.5k | By BKF Asset Holdings, Inc. | 05/31/2019 |
| 05/30/2019 | QUALSTAR CORP | QBAK | Purchase | | 2.5k | $6.00 | $15k | By BKF Asset Holdings, Inc. | 05/28/2019 |
| 05/28/2019 | QUALSTAR CORP | QBAK | Purchase | | 7k | $5.90 | $41k | By BKF Asset Holdings, Inc. | 05/28/2019 |
| 05/23/2019 | QUALSTAR CORP | QBAK | Purchase | | 1.3k | $5.72 | $7.5k | By BKF Asset Holdings, Inc. | 05/21/2019 |
| 05/21/2019 | QUALSTAR CORP | QBAK | Purchase | | 99 | $5.75 | $569.2 | By BKF Asset Holdings, Inc. | 05/21/2019 |
| 05/20/2019 | QUALSTAR CORP | QBAK | Purchase | | 6.1k | $5.73 | $35.1k | By BKF Asset Holdings, Inc. | 05/16/2019 |
| 05/17/2019 | QUALSTAR CORP | QBAK | Purchase | | 9.1k | $5.61 | $50.9k | By BKF Asset Holdings, Inc. | 05/16/2019 |
| 05/16/2019 | QUALSTAR CORP | QBAK | Purchase | | 2.7k | $5.45 | $14.7k | By BKF Asset Holdings, Inc. | 05/16/2019 |
| 05/15/2019 | QUALSTAR CORP | QBAK | Purchase | | 4.6k | $5.08 | $23.4k | By BKF Asset Holdings, Inc. | 05/13/2019 |
| 05/14/2019 | QUALSTAR CORP | QBAK | Purchase | | 1.4k | $4.80 | $6.7k | By BKF Asset Holdings, Inc. | 05/13/2019 |
| 05/13/2019 | QUALSTAR CORP | QBAK | Purchase | | 13.2k | $4.69 | $61.9k | By BKF Asset Holdings, Inc. | 05/13/2019 |
| 09/20/2018 | INTERLINK ELECTRONICS INC | LINK | Purchase | | 4.4k | $4.35 | $19.1k | By BKF Asset Holdings, Inc. | 09/18/2018 |
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