Granahan Investment Management’s Prothena Corp PRTA Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Shares Change % | Capital Flow | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q2 | $2.8M | Buy |
+461,082
| New | +$2.8M | 0.11% | 125 |
|
|
2024
Q4 | – | Sell |
-312,520
| Closed | -$5.23M | – | 199 |
|
|
2024
Q3 | $5.23M | Sell |
312,520
-23,140
| -7% | -$387K | 0.21% | 123 |
|
|
2024
Q2 | $6.93M | Buy |
335,660
+1,740
| +0.5% | +$35.9K | 0.28% | 98 |
|
|
2024
Q1 | $8.27M | Sell |
333,920
-83,237
| -20% | -$2.06M | 0.29% | 97 |
|
|
2023
Q4 | $15.2M | Buy |
417,157
+69,092
| +20% | +$2.51M | 0.5% | 63 |
|
|
2023
Q3 | $16.8M | Buy |
348,065
+53,008
| +18% | +$2.56M | 0.6% | 49 |
|
|
2023
Q2 | $20.1M | Buy |
295,057
+62,429
| +27% | +$4.26M | 0.62% | 50 |
|
|
2023
Q1 | $11.3M | Buy |
232,628
+32,702
| +16% | +$1.59M | 0.34% | 80 |
|
|
2022
Q4 | $12M | Buy |
199,926
+58,818
| +42% | +$3.54M | 0.37% | 77 |
|
|
2022
Q3 | $8.56M | Sell |
141,108
-18,217
| -11% | -$1.1M | 0.28% | 99 |
|
|
2022
Q2 | $4.33M | Buy |
159,325
+35,219
| +28% | +$956K | 0.15% | 126 |
|
|
2022
Q1 | $4.54M | Buy |
124,106
+33,927
| +38% | +$1.24M | 0.11% | 136 |
|
|
2021
Q4 | $4.46M | Buy |
90,179
+44,875
| +99% | +$2.22M | 0.09% | 154 |
|
|
2021
Q3 | $3.23M | Buy |
+45,304
| New | +$3.23M | 0.06% | 173 |
|
|
2015
Q3 | – | Sell |
-33,894
| Closed | -$1.79M | – | 263 |
|
|
2015
Q2 | $1.79M | Hold |
33,894
| – | – | 0.05% | 218 |
|
|
2015
Q1 | $1.29M | Hold |
33,894
| – | – | 0.04% | 223 |
|
|
2014
Q4 | $704K | Hold |
33,894
| – | – | 0.02% | 206 |
|
|
2014
Q3 | $751K | Hold |
33,894
| – | – | 0.02% | 204 |
|
|
2014
Q2 | $764K | Hold |
33,894
| – | – | 0.02% | 208 |
|
|
2014
Q1 | $1.3M | Hold |
33,894
| – | – | 0.04% | 201 |
|
|
2013
Q4 | $899K | Hold |
33,894
| – | – | 0.02% | 206 |
|
|
2013
Q3 | $686K | Sell |
33,894
-3,500
| -9% | -$70.8K | 0.02% | 210 |
|
|
2013
Q2 | $483K | Buy |
+37,394
| New | +$483K | 0.01% | 223 |
|