Federated Hermes, Inc. Prothena Corp Public LTD CO Transaction History

Federated Hermes, Inc.

$52.5 Billion
Q3 2025

A detailed history of Federated Hermes, Inc. transactions in Prothena Corp Public LTD CO stock. As of the latest transaction made, Federated Hermes, Inc. holds 692,818 shares of PRTA stock, worth $7.1 Million. This represents 0.01% of its overall portfolio holdings.

Number of Shares

692,818

Previous 1,181,087 41.34%

Holding current value

$7.1 Million

Previous $7.17 Million 5.69%

% of portfolio

0.01%

Previous 0.01%

23 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 03, 2025	SELL	$6.22 - $9.76 $3.04 Million - $4.77 Million	-488,269 Reduced 41.34%	692,818 $6.76 Million
Q2 2025 Aug 13, 2025	BUY	$4.58 - $12.14 $2.91 Million - $7.71 Million	634,832 Added 116.22%	1,181,087 $7.17 Million
Q1 2025 May 08, 2025	SELL	$12.38 - $16.04 $2.48 Million - $3.21 Million	-199,922 Reduced 26.79%	546,255 $6.76 Million
Q4 2024 Feb 13, 2025	BUY	$11.95 - $18.35 $4.08 Million - $6.26 Million	341,274 Added 84.29%	746,177 $10.3 Million
Q3 2024 Nov 13, 2024	BUY	$16.73 - $24.79 $6.04 Million - $8.95 Million	361,042 Added 823.15%	404,903 $6.77 Million

Q2 2024 Aug 08, 2024	BUY	$19.54 - $26.15 $857,043 - $1.15 Million	43,861 New	43,861 $905,000
Q3 2023 Nov 13, 2023	SELL	$47.3 - $70.6 $1.46 Million - $2.18 Million	-30,847 Reduced 99.97%	9 $0
Q2 2023 Aug 14, 2023	BUY	$48.26 - $78.59 $1.44 Million - $2.35 Million	29,850 Added 2967.2%	30,856 $2.11 Million
Q1 2023 May 08, 2023	SELL	$46.97 - $58.27 $1,690 - $2,097	-36 Reduced 3.45%	1,006 $48,000
Q4 2022 Feb 13, 2023	SELL	$52.05 - $65.0 $18.2 Million - $22.7 Million	-349,095 Reduced 99.7%	1,042 $62,000
Q3 2022 Nov 14, 2022	BUY	$25.16 - $60.63 $8.7 Million - $21 Million	345,634 Added 7675.64%	350,137 $21.2 Million
Q2 2022 Aug 15, 2022	SELL	$22.73 - $39.98 $2.2 Million - $3.87 Million	-96,726 Reduced 95.55%	4,503 $122,000
Q1 2022 May 13, 2022	SELL	$30.27 - $49.22 $596,319 - $969,634	-19,700 Reduced 16.29%	101,229 $3.7 Million
Q4 2021 Feb 14, 2022	SELL	$42.11 - $73.26 $157,407 - $273,845	-3,738 Reduced 3.0%	120,929 $5.97 Million
Q3 2021 Nov 15, 2021	BUY	$48.2 - $78.89 $3.9 Million - $6.39 Million	80,996 Added 185.47%	124,667 $8.88 Million
Q2 2021 Aug 16, 2021	BUY	$21.63 - $57.65 $944,603 - $2.52 Million	43,671 New	43,671 $2.25 Million
Q1 2020 May 13, 2020	SELL	$7.54 - $15.77 $859 - $1,797	-114 Closed	0 $0
Q4 2019 Feb 14, 2020	SELL	$7.48 - $17.01 $1,870 - $4,252	-250 Reduced 68.68%	114 $2,000
Q3 2019 Nov 14, 2019	SELL	$6.89 - $10.45 $964 - $1,463	-140 Reduced 27.78%	364 $3,000
Q2 2019 Aug 14, 2019	BUY	$8.85 - $12.49 $2,991 - $4,221	338 Added 203.61%	504 $5,000
Q3 2018 Nov 13, 2018	SELL	$12.7 - $15.79 $1,257 - $1,563	-99 Reduced 37.36%	166 $2,000
Q2 2018 Aug 10, 2018	SELL	$10.99 - $44.21 $36,948 - $148,634	-3,362 Reduced 92.69%	265 $4,000
Q3 2017 Nov 13, 2017	BUY	$53.83 - $67.75 $195,241 - $245,729	3,627	3,627 $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

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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Federated Hermes, Inc. Prothena Corp Public LTD CO Transaction History