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NORTHERN TRUST CORP
> QBAK
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2020 | QUALSTAR CORP | QBAK | 13,142 | 0 | 35,000 | -36,000 | $2.66 |
| 12/31/2019 | QUALSTAR CORP | QBAK | 13,142 | -8 | 71,000 | -6,000 | $5.40 |
| 09/30/2019 | QUALSTAR CORP | QBAK | 13,150 | 0 | 77,000 | 1,000 | $5.86 |
| 06/30/2019 | QUALSTAR CORP | QBAK | 13,150 | 0 | 76,000 | 4,000 | $5.78 |
| 03/31/2019 | QUALSTAR CORP | QBAK | 13,150 | 0 | 72,000 | 3,000 | $5.48 |
| 12/31/2018 | QUALSTAR CORP | QBAK | 13,150 | 0 | 69,000 | -35,000 | $5.25 |
| 09/30/2018 | QUALSTAR CORP | QBAK | 13,150 | 0 | 104,000 | 3,000 | $7.91 |
| 06/30/2018 | QUALSTAR CORP | QBAK | 13,150 | 0 | 101,000 | -47,000 | $7.68 |
| 03/31/2018 | QUALSTAR CORP | QBAK | 13,150 | 0 | 148,000 | 37,000 | $11.25 |
| 12/31/2017 | QUALSTAR CORP | QBAK | 13,150 | 0 | 111,000 | 23,000 | $8.44 |
| 09/30/2017 | QUALSTAR CORP | QBAK | 13,150 | 0 | 88,000 | 20,000 | $6.69 |
| 06/30/2017 | QUALSTAR CORP | QBAK | 13,150 | 0 | 68,000 | -2,000 | $5.17 |
| 03/31/2017 | QUALSTAR CORP | QBAK | 13,150 | 13,150 | 70,000 | 70,000 | $5.32 |
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