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WELLS FARGO & COMPANY
> PTIE
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2017 | CASSAVA SCIENCES INC | PTIE | 13,800 | 0 | 12,000 | 4,000 | $0.87 |
| 12/31/2016 | CASSAVA SCIENCES INC | PTIE | 13,800 | 1,200 | 8,000 | -5,000 | $0.58 |
| 09/30/2016 | CASSAVA SCIENCES INC | PTIE | 12,600 | 12,600 | 13,000 | 13,000 | $1.03 |
| 06/30/2016 | CASSAVA SCIENCES INC | PTIE | 12,600 | 2,599 | 28,000 | 10,000 | $2.22 |
| 03/31/2016 | CASSAVA SCIENCES INC | PTIE | 12,601 | 2,600 | 28,000 | 10,000 | $2.22 |
| 12/31/2015 | CASSAVA SCIENCES INC | PTIE | 10,001 | 2,900 | 18,000 | 5,000 | $1.80 |
| 09/30/2015 | CASSAVA SCIENCES INC | PTIE | 7,101 | 7,101 | 13,000 | 13,000 | $1.83 |
| 06/30/2015 | CASSAVA SCIENCES INC | PTIE | 0 | -2,119 | 0 | -4,000 | |
| 03/31/2015 | CASSAVA SCIENCES INC | PTIE | 2,119 | 2,119 | 4,000 | 4,000 | $1.89 |
| 12/31/2014 | CASSAVA SCIENCES INC | PTIE | 4,766 | 4,766 | 10,000 | 10,000 | $2.10 |
| 09/30/2014 | CASSAVA SCIENCES INC | PTIE | 57,805 | 57,805 | 226,000 | 226,000 | $3.91 |
| 06/30/2014 | CASSAVA SCIENCES INC | PTIE | 2,708 | 2,708 | 16,000 | 16,000 | $5.91 |
| 03/31/2014 | CASSAVA SCIENCES INC | PTIE | 17,648 | 17,648 | 97,000 | 97,000 | $5.50 |
| 12/31/2013 | CASSAVA SCIENCES INC | PTIE | 1 | 1 | 5 | 5 | $4.86 |
| 09/30/2013 | CASSAVA SCIENCES INC | PTIE | 1 | 1 | 3 | 3 | $2.72 |
| 06/30/2013 | CASSAVA SCIENCES INC | PTIE | 0 | -501 | 0 | -2,000 | |
| 03/31/2013 | CASSAVA SCIENCES INC | PTIE | 501 | 0 | 2,000 | 1,000 | $3.99 |
| 12/31/2012 | CASSAVA SCIENCES INC | PTIE | 501 | 0 | 1,000 | -2,000 | $2.00 |
| 09/30/2012 | CASSAVA SCIENCES INC | PTIE | 501 | 0 | 3,000 | 1,000 | $5.99 |
| 06/30/2012 | CASSAVA SCIENCES INC | PTIE | 501 | -331 | 2,000 | -1,000 | $3.99 |
| 03/31/2012 | CASSAVA SCIENCES INC | PTIE | 832 | 631 | 3,000 | 2,000 | $3.61 |
| 12/31/2011 | CASSAVA SCIENCES INC | PTIE | 201 | 0 | 1,000 | 0 | $4.98 |
| 09/30/2011 | CASSAVA SCIENCES INC | PTIE | 201 | 0 | 1,000 | 0 | $4.98 |
| 06/30/2011 | CASSAVA SCIENCES INC | PTIE | 201 | 201 | 1,000 | 1,000 | $4.98 |
| 03/31/2011 | CASSAVA SCIENCES INC | PTIE | 0 | -7,843 | 0 | -53,000 | |
| 12/31/2010 | CASSAVA SCIENCES INC | PTIE | 7,843 | -28,274 | 53,000 | -141,000 | $6.76 |
| 06/30/2010 | CASSAVA SCIENCES INC | PTIE | 0 | -46,982 | 0 | -295,000 | |
| 03/31/2010 | CASSAVA SCIENCES INC | PTIE | 46,982 | 10,865 | 295,000 | 101,000 | $6.28 |
| 12/31/2009 | CASSAVA SCIENCES INC | PTIE | 36,117 | -36,421 | 194,000 | -173,000 | $5.37 |
| 09/30/2009 | CASSAVA SCIENCES INC | PTIE | 72,538 | -5,000 | 367,000 | -50,000 | $5.06 |
| 06/30/2009 | CASSAVA SCIENCES INC | PTIE | 77,538 | 4,805 | 417,000 | 112,000 | $5.38 |
| 03/31/2009 | CASSAVA SCIENCES INC | PTIE | 72,733 | 273 | 305,000 | -123,000 | $4.19 |
| 12/31/2008 | CASSAVA SCIENCES INC | PTIE | 72,460 | 72,460 | 428,000 | 428,000 | $5.91 |
| 09/30/2008 | CASSAVA SCIENCES INC | PTIE | 0 | -27,500 | 0 | -299,000 | |
| 03/31/2006 | CASSAVA SCIENCES INC | PTIE | 27,500 | -12,500 | 299,000 | 29,000 | $10.87 |
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