Birchview Capital, LP Prothena Corp Public LTD CO Transaction History

Birchview Capital, LP

  • $124 Million
  • Q3 2025

A detailed history of Birchview Capital, LP transactions in Prothena Corp Public LTD CO stock. As of the latest transaction made, Birchview Capital, LP holds 549,019 shares of PRTA stock, worth $5.63 Million. This represents 4.32% of its overall portfolio holdings.

Number of Shares
549,019
Previous 451,019 21.73%
Holding current value
$5.63 Million
Previous $2.74 Million 95.76%
% of portfolio
4.32%
Previous 2.88%

Shares

21 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 13, 2025
BUY
$6.22 - $9.76 $609,560 - $956,480
98,000 Added 21.73%
549,019 $5.36 Million
Q2 2025

Aug 14, 2025
BUY
$4.58 - $12.14 $540,646 - $1.43 Million
118,045 Added 35.45%
451,019 $2.74 Million
Q1 2025

May 15, 2025
BUY
$12.38 - $16.04 $351,592 - $455,536
28,400 Added 9.32%
332,974 $4.12 Million
Q4 2024

Jun 30, 2025
BUY
$11.95 - $18.35 $1.14 Million - $1.74 Million
95,000 Added 45.33%
304,574 $4.22 Million
Q4 2024

Feb 14, 2025
BUY
$11.95 - $18.35 $1.14 Million - $1.74 Million
95,000 Added 45.33%
304,574 $4.22 Million
Q3 2024

Jun 30, 2025
BUY
$16.73 - $24.79 $100,380 - $148,740
6,000 Added 2.95%
209,574 $3.51 Million
Q3 2024

Nov 14, 2024
BUY
$16.73 - $24.79 $100,380 - $148,740
6,000 Added 2.95%
209,574 $3.51 Million
Q2 2024

Jun 30, 2025
BUY
$19.54 - $26.15 $664,360 - $889,100
34,000 Added 20.05%
203,574 $4.2 Million
Q2 2024

Aug 13, 2024
BUY
$19.54 - $26.15 $664,360 - $889,100
34,000 Added 20.05%
203,574 $4.2 Million
Q3 2023

Jun 30, 2025
SELL
$47.3 - $70.6 $7.73 Million - $11.5 Million
-163,400 Reduced 49.07%
169,574 $8.18 Million
Q3 2023

Nov 14, 2023
BUY
$47.3 - $70.6 $636,799 - $950,487
13,463 Added 8.62%
169,574 $8.18 Million
Q2 2023

Aug 08, 2023
BUY
$48.26 - $78.59 $1.34 Million - $2.18 Million
27,716 Added 21.59%
156,111 $10.7 Million
Q1 2023

May 12, 2023
BUY
$46.97 - $58.27 $56,364 - $69,924
1,200 Added 0.94%
128,395 $6.22 Million
Q4 2022

Feb 03, 2023
BUY
$52.05 - $65.0 $429,412 - $536,250
8,250 Added 6.94%
127,195 $7.66 Million
Q3 2022

Nov 07, 2022
BUY
$25.16 - $60.63 $412,548 - $994,150
16,397 Added 15.99%
118,945 $7.21 Million
Q2 2022

Aug 12, 2022
BUY
$22.73 - $39.98 $1.38 Million - $2.42 Million
60,570 Added 144.29%
102,548 $2.78 Million
Q1 2022

May 13, 2022
BUY
$30.27 - $49.22 $52,397 - $85,199
1,731 Added 4.3%
41,978 $1.54 Million
Q3 2021

Nov 12, 2021
BUY
$48.2 - $78.89 $482,000 - $788,900
10,000 Added 33.06%
40,247 $2.87 Million
Q2 2021

Aug 10, 2021
BUY
$21.63 - $57.65 $654,242 - $1.74 Million
30,247 New
30,247 $1.56 Million
Q4 2017

Feb 02, 2018
SELL
$35.44 - $63.76 $128,718 - $231,576
-3,632 Closed
0 $0
Q3 2017

Nov 02, 2017
BUY
$53.83 - $67.75 $195,510 - $246,068
3,632
3,632 $235,000

Others Institutions Holding PRTA

# of Institutions
217
Shares Held
34.9M
Call Options Held
656K
Put Options Held
1.12M
View Full List

About PROTHENA CORP PUBLIC LTD CO

PRTA Quotes by TradingView
  • Ticker PRTA
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Biotechnology
  • Shares Outstandng 46,922,800
  • Market Cap $481M
  • Description
  • Prothena Corporation plc, a late-stage clinical company, focuses on discovery and development of novel therapies for life-threatening diseases in the United States. The company is involved in developing Birtamimab, an investigational humanized antibody that is in Phase III clinical trial for the treatment of AL amyloidosis; Prasinezumab, a human...
More about PRTA
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