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Historical Stock Prices

PRTK 
$10.65
*  
0.15
1.39%
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*Delayed - data as of Jun. 22, 2018  -  Find a broker to begin trading PRTK now
Exchange:NASDAQ
Industry: Health Care
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Get up to 10 years of daily historical stock prices & volumes.

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Results for: 3 Month, From 22-MAR-2018 TO 22-JUN-2018

Date Open High "High" is the highest sales price the stock has achieved during the regular trading hours, the intra-day high. Low "Low" is the lowest sales price the stock has fallen to during the regular trading hours, the intra-day low. Close / Last "Close" is the period at the end of the trading session. Sometimes used to refer to closing price. Volume "Volume" The closing daily official volumes represented graphically for each trading day.
06/22/2018 10.9 10.9 10.5 10.65 1,308,971
06/21/2018 11 11.2 10.65 10.8 657,688
06/20/2018 10.7 11.15 10.65 11 661,121
06/19/2018 10.65 10.85 10.65 10.65 440,237
06/18/2018 11.05 11.25 10.7 10.7 531,640
06/15/2018 10.8 11.1 10.75 11.05 624,796
06/14/2018 10.6 10.9 10.5 10.85 399,943
06/13/2018 10.65 10.75 10.45 10.55 286,758
06/12/2018 10.85 11 10.6 10.7 281,668
06/11/2018 10.95 11.05 10.65 10.9 346,077
06/08/2018 10.85 11.1 10.705 10.9 458,175
06/07/2018 10.6 10.8 10.5 10.65 291,500
06/06/2018 10.4 10.6 10.3 10.55 345,517
06/05/2018 10.45 10.55 10.25 10.35 455,592
06/04/2018 10.45 10.6 10.15 10.5 1,155,232
06/01/2018 10.5 10.6 10.25 10.5 475,303
05/31/2018 10.25 10.725 10.1 10.45 464,434
05/30/2018 10.15 10.35 10 10.2 748,382
05/29/2018 10.3 10.45 9.85 10.2 701,473
05/25/2018 10.4 10.4 10.15 10.3 583,130
05/24/2018 10.55 10.57 10.25 10.4 581,559
05/23/2018 10.85 11.0738 10.4 10.5 873,221
05/22/2018 11.05 11.145 10.85 10.9 422,005
05/21/2018 11.6 11.7 11.05 11.1 322,625
05/18/2018 11.4 11.65 11.3 11.5 292,601
05/17/2018 11.7 11.7 11.25 11.35 794,659
05/16/2018 11.9 12.125 11.55 11.65 915,149
05/15/2018 11.45 12.05 11.4 11.9 1,004,766
05/14/2018 11.45 11.7 11.2 11.5 595,342
05/11/2018 11.05 11.5 10.85 11.4 617,782
05/10/2018 11.1 11.2 10.85 10.95 448,852
05/09/2018 11.05 11.425 11 11.2 659,697
05/08/2018 11.15 11.3 10.95 11.1 529,033
05/07/2018 11.3 11.35 11.05 11.15 406,267
05/04/2018 10.9 11.3 10.7 11.2 819,075
05/03/2018 11 11.1 10.7 10.8 524,216
05/02/2018 10.9 11.25 10.8 11.05 702,677
05/01/2018 10.7 11.05 10.575 10.95 906,185
04/30/2018 10.65 10.8 10.45 10.7 686,473
04/27/2018 10.7 10.85 10.4 10.6 350,055
04/26/2018 11.05 11.05 10.55 10.6 422,290
04/25/2018 10.35 11.15 10.1 11.1 1,030,281
04/24/2018 10.85 11 10.15 10.3 1,378,081
04/23/2018 11.1 11.3 10.75 10.85 1,193,227
04/20/2018 11.15 11.2 10.5 11 2,455,361
04/19/2018 11.6 11.6 11.05 11.225 3,870,536
04/18/2018 13.65 13.65 13.25 13.25 289,162
04/17/2018 13.4 13.65 13.05 13.55 215,146
04/16/2018 14.1 14.15 13.15 13.35 442,035
04/13/2018 13.75 13.95 13.2 13.9 374,751
04/12/2018 13.35 14 13.25 13.65 384,708
04/11/2018 12.95 13.4 12.85 13.2 378,594
04/10/2018 13.1 13.15 12.75 12.95 434,104
04/09/2018 13.1 13.15 12.55 12.9 530,279
04/06/2018 13.15 13.2 12.8 13.05 420,333
04/05/2018 13.45 13.55 13.05 13.15 516,995
04/04/2018 13.2 13.4 12.9 13.3 451,499
04/03/2018 13.15 13.4 12.8 13.35 512,186
04/02/2018 13.05 13.4 12.8 13.1 435,429
03/29/2018 13 13.25 12.9 13 427,242
03/28/2018 12.7 12.85 12.55 12.8 438,681
03/27/2018 13.55 13.55 12.6 12.65 490,879
03/26/2018 13.5 13.7 13 13.55 329,725
03/23/2018 13.6 13.695 13.175 13.4 332,107
03/22/2018 13.45 13.925 13.2 13.6 347,295
*This data reflects the latest intra-day delayed pricing.
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