Charles Schwab’s Prothena Corp PRTA Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $3.48M | Sell |
355,896
-769
| -0.2% | -$7.59K | ﹤0.01% | 2617 |
|
|
2026
Q1 | $3.47M | Sell |
356,665
-670
| -0.2% | -$6.14K | ﹤0.01% | 2550 |
|
|
2025
Q4 | $3.41M | Buy |
357,335
+6,514
| +2% | +$66.3K | ﹤0.01% | 2596 |
|
|
2025
Q3 | $3.42M | Buy |
350,821
+75,737
| +28% | +$582K | ﹤0.01% | 2589 |
|
|
2025
Q2 | $1.67M | Sell |
275,084
-44,523
| -14% | -$334K | ﹤0.01% | 2725 |
|
|
2025
Q1 | $3.96M | Sell |
319,607
-7,544
| -2% | -$107K | ﹤0.01% | 2372 |
|
|
2024
Q4 | $4.53M | Buy |
327,151
+2,189
| +0.7% | +$34.5K | ﹤0.01% | 2372 |
|
|
2024
Q3 | $5.44M | Sell |
324,962
-2,177
| -0.7% | -$46.8K | ﹤0.01% | 2331 |
|
|
2024
Q2 | $6.75M | Buy |
327,139
+8,234
| +3% | +$178K | ﹤0.01% | 2219 |
|
|
2024
Q1 | $7.9M | Buy |
318,905
+5,675
| +2% | +$169K | ﹤0.01% | 2102 |
|
|
2023
Q4 | $11.4M | Buy |
313,230
+4,693
| +2% | +$181K | ﹤0.01% | 1917 |
|
|
2023
Q3 | $14.9M | Sell |
308,537
-3,946
| -1% | -$234K | ﹤0.01% | 1687 |
|
|
2023
Q2 | $21.3M | Buy |
312,483
+13,512
| +5% | +$872K | 0.01% | 1458 |
|
|
2023
Q1 | $14.5M | Sell |
298,971
-1,879
| -0.6% | -$99.3K | ﹤0.01% | 1687 |
|
|
2022
Q4 | $18.1M | Buy |
300,850
+15,108
| +5% | +$885K | 0.01% | 1508 |
|
|
2022
Q3 | $17.3M | Buy |
285,742
+8,267
| +3% | +$261K | 0.01% | 1482 |
|
|
2022
Q2 | $7.53M | Sell |
277,475
-6,927
| -2% | -$203K | ﹤0.01% | 1987 |
|
|
2022
Q1 | $10.4M | Buy |
284,402
+28,788
| +11% | +$1.04M | ﹤0.01% | 1936 |
|
|
2021
Q4 | $12.6M | Buy |
255,614
+13,899
| +6% | +$771K | ﹤0.01% | 1880 |
|
|
2021
Q3 | $17.2M | Buy |
241,715
+34,889
| +17% | +$2.17M | 0.01% | 1698 |
|
|
2021
Q2 | $10.6M | Buy |
206,826
+20,435
| +11% | +$638K | ﹤0.01% | 1962 |
|
|
2021
Q1 | $4.68M | Buy |
186,391
+3,852
| +2% | +$72.5K | ﹤0.01% | 2335 |
|
|
2020
Q4 | $2.19M | Sell |
182,539
-422
| -0.2% | -$4.99K | ﹤0.01% | 2569 |
|
|
2020
Q3 | $1.83M | Sell |
182,961
-54,627
| -23% | -$657K | ﹤0.01% | 2517 |
|
|
2020
Q2 | $2.49M | Sell |
237,588
-4,818
| -2% | -$53.5K | ﹤0.01% | 2345 |
|
|
2020
Q1 | $2.59M | Buy |
242,406
+3,400
| +1% | +$41.2K | ﹤0.01% | 2160 |
|
|
2019
Q4 | $3.78M | Buy |
239,006
+5,390
| +2% | +$57.8K | ﹤0.01% | 2171 |
|
|
2019
Q3 | $1.83M | Sell |
233,616
-724
| -0.3% | -$6.43K | ﹤0.01% | 2405 |
|
|
2019
Q2 | $2.48M | Buy |
234,340
+15,301
| +7% | +$157K | ﹤0.01% | 2299 |
|
|
2019
Q1 | $2.66M | Sell |
219,039
-1,230
| -0.6% | -$15.4K | ﹤0.01% | 2264 |
|
|
2018
Q4 | $2.27M | Buy |
220,269
+18,879
| +9% | +$224K | ﹤0.01% | 2287 |
|
|
2018
Q3 | $2.63M | Sell |
201,390
-3,397
| -2% | -$49.1K | ﹤0.01% | 2343 |
|
|
2018
Q2 | $2.99M | Buy |
204,787
+29,533
| +17% | +$583K | ﹤0.01% | 2245 |
|
|
2018
Q1 | $6.43M | Sell |
175,254
-6,625
| -4% | -$241K | 0.01% | 1799 |
|
|
2017
Q4 | $6.82M | Buy |
181,879
+9,301
| +5% | +$474K | 0.01% | 1743 |
|
|
2017
Q3 | $11.2M | Buy |
172,578
+8,897
| +5% | +$545K | 0.01% | 1343 |
|
|
2017
Q2 | $8.86M | Buy |
163,681
+9,824
| +6% | +$523K | 0.01% | 1444 |
|
|
2017
Q1 | $8.58M | Buy |
153,857
+16,665
| +12% | +$876K | 0.01% | 1417 |
|
|
2016
Q4 | $6.75M | Buy |
137,192
+7,046
| +5% | +$389K | 0.01% | 1543 |
|
|
2016
Q3 | $7.8M | Buy |
130,146
+17,784
| +16% | +$954K | 0.01% | 1345 |
|
|
2016
Q2 | $3.93M | Sell |
112,362
-6,130
| -5% | -$267K | ﹤0.01% | 1716 |
|
|
2016
Q1 | $4.88M | Buy |
118,492
+10,626
| +10% | +$416K | 0.01% | 1534 |
|
|
2015
Q4 | $7.35M | Buy |
107,866
+15,006
| +16% | +$905K | 0.01% | 1243 |
|
|
2015
Q3 | $4.21M | Buy |
92,860
+38,088
| +70% | +$2.22M | 0.01% | 1584 |
|
|
2015
Q2 | $2.88M | Buy |
54,772
+6,469
| +13% | +$255K | ﹤0.01% | 1891 |
|
|
2015
Q1 | $1.84M | Hold |
48,303
| – | – | ﹤0.01% | 2096 |
|
|
2014
Q4 | $1M | Hold |
48,303
| – | – | ﹤0.01% | 2353 |
|
|
2014
Q3 | $1.07M | Buy |
48,303
+16,203
| +50% | +$344K | ﹤0.01% | 2264 |
|
|
2014
Q2 | $724K | Buy |
32,100
+11,600
| +57% | +$290K | ﹤0.01% | 2483 |
|
|
2014
Q1 | $786K | Hold |
20,500
| – | – | ﹤0.01% | 2400 |
|
|
2013
Q4 | $544K | Buy |
20,500
+3,600
| +21% | +$90.3K | ﹤0.01% | 2561 |
|
|
2013
Q3 | $339K | Hold |
16,900
| – | – | ﹤0.01% | 2702 |
|
|
2013
Q2 | $220K | Buy |
+16,900
| New | +$157K | ﹤0.01% | 2858 |
|
Other funds holding PRTA
RCMNY
ACM
PAI
Charles Schwab's PRTA Position: Q2 2026 in Review
Charles Schwab reduced its Prothena Corp (PRTA) stake by 0.22% in Q2 2026, selling an estimated $7.59K and leaving 355,896 shares worth $3.48M. The position accounts for ﹤0.01% of the portfolio, ranked #2617.
Charles Schwab first reported a position in PRTA in Q2 2013 and has held it in 53 quarters since. The position peaked at $21.3M in Q2 2023. 188 funds tracked by Wall St. Rank hold PRTA as of Q2 2026.
- Charles Schwab held 355,896 shares of Prothena Corp worth $3.48M as of Q2 2026.
- Charles Schwab sold 769 Prothena Corp shares in Q2 2026, an estimated $7.59K.
- Prothena Corp made up ﹤0.01% of Charles Schwab's portfolio in Q2 2026, its #2617 holding.
- Charles Schwab first reported a position in Prothena Corp in Q2 2013 and has held it in 53 quarters since.
- Charles Schwab's Prothena Corp position peaked at $21.3M in Q2 2023.
- 188 funds tracked by Wall St. Rank held Prothena Corp as of Q2 2026.
Based on Charles Schwab's 13F filing for Q2 2026, filed 14 Aug 2026.