E
Prothena Corporation plc
PRTA
$10.48
-$0.36-3.32%
E
Sell
6/24/2024Downgrade
Prothena Corporation plc (PRTA) was downgraded to E+ from D- on 6/24/2024 due to a decline in the volatility index and total return index.
Prothena Corporation plc (PRTA) was downgraded to E+ from D- on 6/24/2024 due to a decline in the volatility index and total return index.
D
Sell
6/5/2024Upgraded
Prothena Corporation plc (PRTA) was upgraded to D- from E+ on 6/5/2024 due to an increase in the volatility index.
Prothena Corporation plc (PRTA) was upgraded to D- from E+ on 6/5/2024 due to an increase in the volatility index.
E
Sell
5/16/2024Downgrade
Prothena Corporation plc (PRTA) was downgraded to E+ from D- on 5/16/2024 due to a significant decline in the total return index, volatility index and solvency index.
Prothena Corporation plc (PRTA) was downgraded to E+ from D- on 5/16/2024 due to a significant decline in the total return index, volatility index and solvency index.
D
Sell
8/7/2023Downgrade
Prothena Corporation plc (PRTA) was downgraded to D- from D+ on 8/7/2023 due to a noticeable decline in the efficiency index, total return index and solvency index. The quick ratio declined from 14.04 to 9.22, net income declined 16.5% from -$46.86M to -$54.6M, and total capital declined 4.44% from $612.29M to $585.13M.
Prothena Corporation plc (PRTA) was downgraded to D- from D+ on 8/7/2023 due to a noticeable decline in the efficiency index, total return index and solvency index. The quick ratio declined from 14.04 to 9.22, net income declined 16.5% from -$46.86M to -$54.6M, and total capital declined 4.44% from $612.29M to $585.13M.
D
Sell
7/20/2023Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 7/20/2023 due to a large increase in the total return index and valuation index.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 7/20/2023 due to a large increase in the total return index and valuation index.
D
Sell
7/5/2023Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 7/5/2023 due to a decline in the total return index and volatility index.
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 7/5/2023 due to a decline in the total return index and volatility index.
D
Sell
6/14/2023Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 6/14/2023 due to a major increase in the total return index, volatility index and efficiency index.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 6/14/2023 due to a major increase in the total return index, volatility index and efficiency index.
D
Sell
3/16/2023Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 3/16/2023 due to a noticeable decline in the total return index.
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 3/16/2023 due to a noticeable decline in the total return index.
D
Sell
3/1/2023Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 3/1/2023 due to a major increase in the total return index, efficiency index and solvency index. Net income increased 113.87% from -$45.76M to $6.35M, total capital increased 52.3% from $412.68M to $628.52M, and debt to equity declined from 0.02 to 0.01.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 3/1/2023 due to a major increase in the total return index, efficiency index and solvency index. Net income increased 113.87% from -$45.76M to $6.35M, total capital increased 52.3% from $412.68M to $628.52M, and debt to equity declined from 0.02 to 0.01.
D
Sell
8/9/2022Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from C- on 8/9/2022 due to a significant decline in the valuation index, efficiency index and total return index. Net income declined 13.65% from -$36.29M to -$41.24M, and total capital declined 7.31% from $449.77M to $416.88M.
Prothena Corporation plc (PRTA) was downgraded to D from C- on 8/9/2022 due to a significant decline in the valuation index, efficiency index and total return index. Net income declined 13.65% from -$36.29M to -$41.24M, and total capital declined 7.31% from $449.77M to $416.88M.
C
Hold
5/6/2022Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 5/6/2022 due to a substantial increase in the growth index, valuation index and efficiency index.
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 5/6/2022 due to a substantial increase in the growth index, valuation index and efficiency index.
D
Sell
2/28/2022Downgrade
Prothena Corporation plc (PRTA) was downgraded to D+ from C on 2/28/2022 due to a significant decline in the growth index, total return index and solvency index. Earnings per share declined from $2.13 to -$0.7117, EBIT declined 130.3% from $109.23M to -$33.09M, and operating cash flow declined 120.03% from $112.11M to -$22.46M.
Prothena Corporation plc (PRTA) was downgraded to D+ from C on 2/28/2022 due to a significant decline in the growth index, total return index and solvency index. Earnings per share declined from $2.13 to -$0.7117, EBIT declined 130.3% from $109.23M to -$33.09M, and operating cash flow declined 120.03% from $112.11M to -$22.46M.
C
Hold
11/8/2021Upgraded
Prothena Corporation plc (PRTA) was upgraded to C from D on 11/8/2021 due to a significant increase in the growth index, total return index and efficiency index. Net income increased 295.22% from $27.64M to $109.25M, EBIT increased 290.81% from $27.95M to $109.23M, and earnings per share increased from $0.58 to $2.13.
Prothena Corporation plc (PRTA) was upgraded to C from D on 11/8/2021 due to a significant increase in the growth index, total return index and efficiency index. Net income increased 295.22% from $27.64M to $109.25M, EBIT increased 290.81% from $27.95M to $109.23M, and earnings per share increased from $0.58 to $2.13.
D
Sell
12/28/2020Upgraded
Prothena Corporation plc (PRTA) was upgraded to D from D- on 12/28/2020 due to an increase in the total return index and volatility index.
Prothena Corporation plc (PRTA) was upgraded to D from D- on 12/28/2020 due to an increase in the total return index and volatility index.
D
Sell
12/11/2020Downgrade
Prothena Corporation plc (PRTA) was downgraded to D- from D on 12/11/2020 due to a major decline in the growth index, efficiency index and solvency index. Debt to equity increased from 0.02 to 0.03, the quick ratio declined from 18.01 to 14.48, and total revenue declined 19.49% from $195 to $157.
Prothena Corporation plc (PRTA) was downgraded to D- from D on 12/11/2020 due to a major decline in the growth index, efficiency index and solvency index. Debt to equity increased from 0.02 to 0.03, the quick ratio declined from 18.01 to 14.48, and total revenue declined 19.49% from $195 to $157.
D
Sell
7/11/2019Upgraded
Prothena Corporation plc (PRTA) was upgraded to D from D- on 7/11/2019 due to an increase in the volatility index.
Prothena Corporation plc (PRTA) was upgraded to D from D- on 7/11/2019 due to an increase in the volatility index.
D
Sell
6/12/2019Downgrade
Prothena Corporation plc (PRTA) was downgraded to D- from D on 6/12/2019 due to a decline in the total return index.
Prothena Corporation plc (PRTA) was downgraded to D- from D on 6/12/2019 due to a decline in the total return index.
D
Sell
5/9/2019Upgraded
Prothena Corporation plc (PRTA) was upgraded to D from D- on 5/9/2019 due to an increase in the growth index and total return index. Operating cash flow increased 17.96% from -$21.25M to -$17.44M, earnings per share increased from -$0.5634 to -$0.5234, and EBIT increased 5.45% from -$24.34M to -$23.02M.
Prothena Corporation plc (PRTA) was upgraded to D from D- on 5/9/2019 due to an increase in the growth index and total return index. Operating cash flow increased 17.96% from -$21.25M to -$17.44M, earnings per share increased from -$0.5634 to -$0.5234, and EBIT increased 5.45% from -$24.34M to -$23.02M.
D
Sell
7/2/2018Downgrade
Prothena Corporation plc (PRTA) was downgraded to D- from D on 7/2/2018 due to a significant decline in the total return index, solvency index and volatility index.
Prothena Corporation plc (PRTA) was downgraded to D- from D on 7/2/2018 due to a significant decline in the total return index, solvency index and volatility index.
D
Sell
10/25/2017Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 10/25/2017 due to a major decline in the total return index.
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 10/25/2017 due to a major decline in the total return index.
D
Sell
9/27/2017Downgrade
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 9/27/2017 due to a decline in the total return index and valuation index.
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 9/27/2017 due to a decline in the total return index and valuation index.
C
Hold
9/12/2017Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 9/12/2017 due to an increase in the total return index.
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 9/12/2017 due to an increase in the total return index.
D
Sell
8/28/2017Downgrade
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 8/28/2017 due to a decline in the total return index.
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 8/28/2017 due to a decline in the total return index.
C
Hold
8/11/2017Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 8/11/2017 due to a noticeable increase in the growth index, total return index and efficiency index. Total revenue increased 10,252.12% from $259 to $26.81M, earnings per share increased from -$0.9895 to -$0.4649, and EBIT increased 50.01% from -$36.27M to -$18.13M.
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 8/11/2017 due to a noticeable increase in the growth index, total return index and efficiency index. Total revenue increased 10,252.12% from $259 to $26.81M, earnings per share increased from -$0.9895 to -$0.4649, and EBIT increased 50.01% from -$36.27M to -$18.13M.
D
Sell
6/22/2017Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 6/22/2017 due to a noticeable increase in the total return index and volatility index.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 6/22/2017 due to a noticeable increase in the total return index and volatility index.
D
Sell
6/6/2017Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 6/6/2017 due to a noticeable decline in the total return index and growth index. Operating cash flow declined 11.31% from -$34M to -$37.84M.
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 6/6/2017 due to a noticeable decline in the total return index and growth index. Operating cash flow declined 11.31% from -$34M to -$37.84M.
D
Sell
5/10/2017Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 5/10/2017 due to a substantial increase in the total return index, growth index and volatility index. EBIT increased 4.95% from -$42.69M to -$40.58M.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 5/10/2017 due to a substantial increase in the total return index, growth index and volatility index. EBIT increased 4.95% from -$42.69M to -$40.58M.
D
Sell
11/4/2016Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 11/4/2016 due to a large decline in the total return index and efficiency index. Net income declined 6.91% from -$40.45M to -$43.24M, and total capital declined 5.64% from $466.8M to $440.46M.
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 11/4/2016 due to a large decline in the total return index and efficiency index. Net income declined 6.91% from -$40.45M to -$43.24M, and total capital declined 5.64% from $466.8M to $440.46M.
D
Sell
10/28/2016Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 10/28/2016 due to a major increase in the total return index and growth index. Total revenue increased 25.66% from $265 to $333.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 10/28/2016 due to a major increase in the total return index and growth index. Total revenue increased 25.66% from $265 to $333.
D
Sell
8/1/2016Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 8/1/2016 due to a significant decline in the total return index and valuation index.
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 8/1/2016 due to a significant decline in the total return index and valuation index.
D
Sell
7/15/2016Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 7/15/2016 due to a significant increase in the total return index, solvency index and efficiency index. Total capital increased 29.14% from $360.67M to $465.78M, and the quick ratio increased from 16.7 to 20.46.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 7/15/2016 due to a significant increase in the total return index, solvency index and efficiency index. Total capital increased 29.14% from $360.67M to $465.78M, and the quick ratio increased from 16.7 to 20.46.
D
Sell
3/11/2016Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 3/11/2016 due to a significant decline in the volatility index and total return index.
Prothena Corporation plc (PRTA) was downgraded to D from D+ on 3/11/2016 due to a significant decline in the volatility index and total return index.
D
Sell
2/29/2016Downgrade
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 2/29/2016 due to a large decline in the growth index, total return index and solvency index. Total revenue declined 28.44% from $429 to $307, and the quick ratio declined from 20.94 to 16.7.
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 2/29/2016 due to a large decline in the growth index, total return index and solvency index. Total revenue declined 28.44% from $429 to $307, and the quick ratio declined from 20.94 to 16.7.
C
Hold
2/16/2016Downgrade
Prothena Corporation plc (PRTA) was downgraded to C- from C on 2/16/2016 due to a decline in the total return index.
Prothena Corporation plc (PRTA) was downgraded to C- from C on 2/16/2016 due to a decline in the total return index.
C
Hold
1/27/2016Upgraded
Prothena Corporation plc (PRTA) was upgraded to C from C- on 1/27/2016 due to an increase in the total return index and valuation index.
Prothena Corporation plc (PRTA) was upgraded to C from C- on 1/27/2016 due to an increase in the total return index and valuation index.
C
Hold
12/28/2015Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 12/28/2015 due to an increase in the total return index.
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 12/28/2015 due to an increase in the total return index.
D
Sell
12/1/2015Downgrade
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 12/1/2015 due to a decline in the total return index and valuation index.
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 12/1/2015 due to a decline in the total return index and valuation index.
C
Hold
11/13/2015Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 11/13/2015 due to an increase in the growth index and total return index. Total revenue increased 54.32% from $278 to $429, operating cash flow increased 51.83% from -$11.14M to -$16.91M, and EBIT increased 25.65% from -$18.04M to -$22.66M.
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 11/13/2015 due to an increase in the growth index and total return index. Total revenue increased 54.32% from $278 to $429, operating cash flow increased 51.83% from -$11.14M to -$16.91M, and EBIT increased 25.65% from -$18.04M to -$22.66M.
D
Sell
9/29/2015Downgrade
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 9/29/2015 due to a large decline in the volatility index, valuation index and growth index. Total revenue declined 53.12% from $593 to $278, and operating cash flow declined 24.32% from -$14.72M to -$11.14M.
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 9/29/2015 due to a large decline in the volatility index, valuation index and growth index. Total revenue declined 53.12% from $593 to $278, and operating cash flow declined 24.32% from -$14.72M to -$11.14M.
C
Hold
5/26/2015Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 5/26/2015 due to a noticeable increase in the total return index and volatility index.
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 5/26/2015 due to a noticeable increase in the total return index and volatility index.
D
Sell
5/8/2015Downgrade
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 5/8/2015 due to a substantial decline in the efficiency index, growth index and solvency index. Total revenue declined 70.54% from $2.01M to $593, and total capital declined 4.3% from $289.89M to $277.43M.
Prothena Corporation plc (PRTA) was downgraded to D+ from C- on 5/8/2015 due to a substantial decline in the efficiency index, growth index and solvency index. Total revenue declined 70.54% from $2.01M to $593, and total capital declined 4.3% from $289.89M to $277.43M.
C
Hold
10/1/2014Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 10/1/2014 due to an increase in the efficiency index. Total capital increased 54.61% from $193.01M to $298.42M.
Prothena Corporation plc (PRTA) was upgraded to C- from D+ on 10/1/2014 due to an increase in the efficiency index. Total capital increased 54.61% from $193.01M to $298.42M.
D
Sell
7/1/2014Upgraded
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 7/1/2014 due to a large increase in the growth index, volatility index and valuation index. Total revenue increased 19,201.8% from $167 to $32.23M.
Prothena Corporation plc (PRTA) was upgraded to D+ from D on 7/1/2014 due to a large increase in the growth index, volatility index and valuation index. Total revenue increased 19,201.8% from $167 to $32.23M.
D
Sell
3/21/2014Downgrade
Prothena Corporation plc (PRTA) was downgraded to D from C- on 3/21/2014 due to a decline in the valuation index.
Prothena Corporation plc (PRTA) was downgraded to D from C- on 3/21/2014 due to a decline in the valuation index.
C
Hold
3/19/2014Upgraded
Prothena Corporation plc (PRTA) was upgraded to C- from D on 3/19/2014 due to an increase in the efficiency index, solvency index and volatility index. The quick ratio increased from 13.21 to 23.86, total capital increased 75.41% from $98.78M to $173.27M, and net income increased 14.09% from -$9.69M to -$11.05M.
Prothena Corporation plc (PRTA) was upgraded to C- from D on 3/19/2014 due to an increase in the efficiency index, solvency index and volatility index. The quick ratio increased from 13.21 to 23.86, total capital increased 75.41% from $98.78M to $173.27M, and net income increased 14.09% from -$9.69M to -$11.05M.
NASDAQ
04/08/2025 4:00PM Eastern
Quotes delayed
