Bank of America’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
Q1 | $3.83M | Sell |
393,632
-33,728
| -8% | -$309K | ﹤0.01% | 3660 |
|
|
2025
Q4 | $4.08M | Buy |
427,360
+150,264
| +54% | +$1.53M | ﹤0.01% | 3541 |
|
|
2025
Q3 | $2.7M | Buy |
277,096
+66,151
| +31% | +$508K | ﹤0.01% | 4553 |
|
|
2025
Q2 | $1.28M | Buy |
210,945
+78,959
| +60% | +$593K | ﹤0.01% | 5125 |
|
|
2025
Q1 | $1.63M | Buy |
131,986
+12,979
| +11% | +$184K | ﹤0.01% | 4843 |
|
|
2024
Q4 | $1.65M | Buy |
119,007
+36,944
| +45% | +$583K | ﹤0.01% | 4613 |
|
|
2024
Q3 | $1.37M | Sell |
82,063
-36,801
| -31% | -$791K | ﹤0.01% | 4843 |
|
|
2024
Q2 | $2.45M | Sell |
118,864
-121,479
| -51% | -$2.63M | ﹤0.01% | 4283 |
|
|
2024
Q1 | $5.95M | Sell |
240,343
-47,012
| -16% | -$1.4M | ﹤0.01% | 3454 |
|
|
2023
Q4 | $10.4M | Buy |
287,355
+177,932
| +163% | +$6.85M | ﹤0.01% | 2846 |
|
|
2023
Q3 | $5.28M | Sell |
109,423
-49,439
| -31% | -$2.94M | ﹤0.01% | 3349 |
|
|
2023
Q2 | $10.8M | Sell |
158,862
-405,579
| -72% | -$26.2M | ﹤0.01% | 2632 |
|
|
2023
Q1 | $27.4M | Buy |
564,441
+442,770
| +364% | +$23.4M | ﹤0.01% | 1837 |
|
|
2022
Q4 | $7.33M | Buy |
121,671
+38,574
| +46% | +$2.26M | ﹤0.01% | 2988 |
|
|
2022
Q3 | $5.04M | Buy |
83,097
+17,753
| +27% | +$561K | ﹤0.01% | 3345 |
|
|
2022
Q2 | $1.77M | Sell |
65,344
-92,875
| -59% | -$2.72M | ﹤0.01% | 4411 |
|
|
2022
Q1 | $5.79M | Sell |
158,219
-10,283
| -6% | -$371K | ﹤0.01% | 3471 |
|
|
2021
Q4 | $8.32M | Buy |
168,502
+134,928
| +402% | +$7.48M | ﹤0.01% | 3127 |
|
|
2021
Q3 | $2.39M | Buy |
33,574
+17,431
| +108% | +$1.08M | ﹤0.01% | 4271 |
|
|
2021
Q2 | $829K | Sell |
16,143
-31,754
| -66% | -$991K | ﹤0.01% | 5050 |
|
|
2021
Q1 | $1.2M | Buy |
47,897
+32,894
| +219% | +$619K | ﹤0.01% | 4678 |
|
|
2020
Q4 | $181K | Sell |
15,003
-35,425
| -70% | -$419K | ﹤0.01% | 5666 |
|
|
2020
Q3 | $504K | Buy |
50,428
+19,131
| +61% | +$230K | ﹤0.01% | 4709 |
|
|
2020
Q2 | $328K | Buy |
31,297
+12,355
| +65% | +$137K | ﹤0.01% | 4926 |
|
|
2020
Q1 | $203K | Sell |
18,942
-711
| -4% | -$8.61K | ﹤0.01% | 5071 |
|
|
2019
Q4 | $311K | Sell |
19,653
-14,034
| -42% | -$150K | ﹤0.01% | 5340 |
|
|
2019
Q3 | $264K | Sell |
33,687
-207,531
| -86% | -$1.84M | ﹤0.01% | 5495 |
|
|
2019
Q2 | $2.55M | Buy |
241,218
+12,582
| +6% | +$129K | ﹤0.01% | 3847 |
|
|
2019
Q1 | $2.77M | Sell |
228,636
-300,626
| -57% | -$3.75M | ﹤0.01% | 3717 |
|
|
2018
Q4 | $5.45M | Sell |
529,262
-343,695
| -39% | -$4.09M | ﹤0.01% | 2904 |
|
|
2018
Q3 | $11.4M | Buy |
872,957
+697,038
| +396% | +$10.1M | ﹤0.01% | 2354 |
|
|
2018
Q2 | $2.56M | Buy |
175,919
+155,108
| +745% | +$3.06M | ﹤0.01% | 3776 |
|
|
2018
Q1 | $764K | Buy |
20,811
+6,756
| +48% | +$246K | ﹤0.01% | 4557 |
|
|
2017
Q4 | $526K | Sell |
14,055
-5,284
| -27% | -$269K | ﹤0.01% | 4911 |
|
|
2017
Q3 | $1.25M | Buy |
19,339
+7,613
| +65% | +$466K | ﹤0.01% | 4355 |
|
|
2017
Q2 | $635K | Sell |
11,726
-4,149
| -26% | -$221K | ﹤0.01% | 4747 |
|
|
2017
Q1 | $886K | Buy |
15,875
+7,735
| +95% | +$406K | ﹤0.01% | 4510 |
|
|
2016
Q4 | $400K | Buy |
8,140
+5,003
| +159% | +$276K | ﹤0.01% | 4960 |
|
|
2016
Q3 | $189K | Sell |
3,137
-3,246
| -51% | -$174K | ﹤0.01% | 5148 |
|
|
2016
Q2 | $223K | Buy |
6,383
+4,214
| +194% | +$184K | ﹤0.01% | 5146 |
|
|
2016
Q1 | $89K | Sell |
2,169
-6,191
| -74% | -$242K | ﹤0.01% | 5536 |
|
|
2015
Q4 | $570K | Buy |
8,360
+6,846
| +452% | +$413K | ﹤0.01% | 4733 |
|
|
2015
Q3 | $69K | Sell |
1,514
-14,124
| -90% | -$823K | ﹤0.01% | 5824 |
|
|
2015
Q2 | $824K | Buy |
15,638
+14,601
| +1,408% | +$576K | ﹤0.01% | 4273 |
|
|
2015
Q1 | $39K | Sell |
1,037
-4,509
| -81% | -$116K | ﹤0.01% | 5771 |
|
|
2014
Q4 | $115K | Sell |
5,546
-7,991
| -59% | -$167K | ﹤0.01% | 5783 |
|
|
2014
Q3 | $300K | Sell |
13,537
-1,642,507
| -99% | -$34.8M | ﹤0.01% | 5036 |
|
|
2014
Q2 | $37.3M | Buy |
1,656,044
+1,649,241
| +24,243% | +$41.2M | 0.01% | 985 |
|
|
2014
Q1 | $261K | Buy |
6,803
+638
| +10% | +$20.6K | ﹤0.01% | 5201 |
|
|
2013
Q4 | $164K | Buy |
6,165
+3,089
| +100% | +$77.5K | ﹤0.01% | 5761 |
|
|
2013
Q3 | $62K | Sell |
3,076
-15,848
| -84% | -$280K | ﹤0.01% | 6281 |
|
|
2013
Q2 | $244K | Buy |
+18,924
| New | +$176K | ﹤0.01% | 5434 |
|
Other funds holding PRTA
RCMNY
ACM
VPM
PAI
Bank of America's PRTA Position: Q1 2026 in Review
Bank of America reduced its Prothena Corp (PRTA) stake by 7.9% in Q1 2026, selling an estimated $309K and leaving 393,632 shares worth $3.83M. The position accounts for ﹤0.01% of the portfolio, ranked #3660.
Bank of America first reported a position in PRTA in Q2 2013 and has held it in 52 quarters since. The position peaked at $37.3M in Q2 2014. 185 funds tracked by Wall St. Rank hold PRTA as of Q1 2026.
- Bank of America held 393,632 shares of Prothena Corp worth $3.83M as of Q1 2026.
- Bank of America sold 33,728 Prothena Corp shares in Q1 2026, an estimated $309K.
- Prothena Corp made up ﹤0.01% of Bank of America's portfolio in Q1 2026, its #3660 holding.
- Bank of America first reported a position in Prothena Corp in Q2 2013 and has held it in 52 quarters since.
- Bank of America's Prothena Corp position peaked at $37.3M in Q2 2014.
- 185 funds tracked by Wall St. Rank held Prothena Corp as of Q1 2026.
Based on Bank of America's 13F filing for Q1 2026, filed 18 May 2026.