Jane Street Group, LLC Prothena Corp Public LTD CO Transaction History

Jane Street Group, LLC

$616 Billion
Q3 2025

A detailed history of Jane Street Group, LLC transactions in Prothena Corp Public LTD CO stock. As of the latest transaction made, Jane Street Group, LLC holds 619,792 shares of PRTA stock, worth $6.35 Million. This represents 0.0% of its overall portfolio holdings.

Number of Shares

619,792

Previous 117,453 427.69%

Holding current value

$6.35 Million

Previous $712,000 749.58%

% of portfolio

0.0%

Previous 0.0%

24 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 13, 2025	BUY	$6.22 - $9.76 $3.12 Million - $4.9 Million	502,339 Added 427.69%	619,792 $6.05 Million
Q2 2025 Aug 14, 2025	SELL	$4.58 - $12.14 $69,556 - $184,370	-15,187 Reduced 11.45%	117,453 $712,000
Q1 2025 May 14, 2025	BUY	$12.38 - $16.04 $954,646 - $1.24 Million	77,112 Added 138.87%	132,640 $1.64 Million
Q4 2024 Feb 14, 2025	SELL	$11.95 - $18.35 $476,996 - $732,458	-39,916 Reduced 41.82%	55,528 $769,000
Q3 2024 Nov 14, 2024	SELL	$16.73 - $24.79 $435,331 - $645,060	-26,021 Reduced 21.42%	95,444 $1.6 Million

Q2 2024 Aug 14, 2024	BUY	$19.54 - $26.15 $1.31 Million - $1.75 Million	67,069 Added 123.3%	121,465 $2.51 Million
Q1 2024 May 15, 2024	SELL	$24.75 - $40.66 $3.24 Million - $5.32 Million	-130,799 Reduced 70.63%	54,396 $1.35 Million
Q4 2023 Feb 14, 2024	BUY	$32.31 - $52.32 $5.78 Million - $9.36 Million	178,939 Added 2860.28%	185,195 $6.73 Million
Q3 2023 Nov 14, 2023	SELL	$47.3 - $70.6 $2.23 Million - $3.33 Million	-47,219 Reduced 88.3%	6,256 $301,000
Q2 2023 Aug 14, 2023	BUY	$48.26 - $78.59 $1.64 Million - $2.68 Million	34,082 Added 175.74%	53,475 $3.65 Million
Q1 2023 May 15, 2023	BUY	$46.97 - $58.27 $910,889 - $1.13 Million	19,393 New	19,393 $939,000
Q2 2022 Aug 16, 2022	BUY	$22.73 - $39.98 $363,680 - $639,680	16,000 Added 174.52%	25,168 $683,000
Q4 2021 Feb 15, 2022	SELL	$42.11 - $73.26 $159,217 - $276,996	-3,781 Reduced 29.2%	9,168 $453,000
Q3 2021 Nov 16, 2021	BUY	$48.2 - $78.89 $624,141 - $1.02 Million	12,949 New	12,949 $922,000
Q4 2020 Feb 17, 2021	SELL	$10.12 - $13.94 $238,751 - $328,872	-23,592 Closed	0 $0
Q3 2020 Nov 17, 2020	SELL	$9.93 - $13.47 $211,588 - $287,018	-21,308 Reduced 47.46%	23,592 $236,000
Q2 2020 Aug 17, 2020	BUY	$9.56 - $12.51 $429,244 - $561,699	44,900 New	44,900 $470,000
Q1 2019 May 16, 2019	SELL	$10.32 - $14.49 $176,585 - $247,938	-17,111 Closed	0 $0
Q4 2018 Feb 15, 2019	BUY	$8.73 - $13.74 $149,379 - $235,105	17,111 New	17,111 $176,000
Q3 2018 Nov 14, 2018	SELL	$12.7 - $15.79 $132,295 - $164,484	-10,417 Closed	0 $0
Q2 2018 Aug 15, 2018	SELL	$10.99 - $44.21 $3,439 - $13,837	-313 Reduced 2.92%	10,417 $152,000
Q1 2018 May 15, 2018	BUY	$27.95 - $45.04 $299,903 - $483,279	10,730 New	10,730 $394,000
Q4 2017 Feb 15, 2018	SELL	$35.44 - $63.76 $221,039 - $397,671	-6,237 Closed	0 $0
Q3 2017 Nov 14, 2017	BUY	$53.83 - $67.75 $335,737 - $422,556	6,237	6,237 $404,000

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

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...

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Jane Street Group, LLC Prothena Corp Public LTD CO Transaction History