Granahan Investment Management, LLC Prothena Corp Public LTD CO Transaction History

Granahan Investment Management, LLC

$2.38 Billion
Q3 2024

A detailed history of Granahan Investment Management, LLC transactions in Prothena Corp Public LTD CO stock. As of the latest transaction made, Granahan Investment Management, LLC holds 312,520 shares of PRTA stock, worth $4.76 Million. This represents 0.22% of its overall portfolio holdings.

Number of Shares

312,520

Previous 335,660 6.89%

Holding current value

$4.76 Million

Previous $6.93 Million 24.54%

% of portfolio

0.22%

Previous 0.29%

13 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2024 Nov 14, 2024	SELL	$16.73 - $24.79 $387,132 - $573,640	-23,140 Reduced 6.89%	312,520 $5.23 Million
Q2 2024 Aug 14, 2024	BUY	$19.54 - $26.15 $33,999 - $45,501	1,740 Added 0.52%	335,660 $6.93 Million
Q1 2024 May 15, 2024	SELL	$24.75 - $40.66 $2.06 Million - $3.38 Million	-83,237 Reduced 19.95%	333,920 $8.27 Million
Q4 2023 Feb 14, 2024	BUY	$32.31 - $52.32 $2.23 Million - $3.61 Million	69,092 Added 19.85%	417,157 $15.2 Million
Q3 2023 Nov 14, 2023	BUY	$47.3 - $70.6 $2.51 Million - $3.74 Million	53,008 Added 17.97%	348,065 $16.8 Million
Q2 2023 Aug 14, 2023	BUY	$48.26 - $78.59 $3.01 Million - $4.91 Million	62,429 Added 26.84%	295,057 $20.1 Million
Q1 2023 May 15, 2023	BUY	$46.97 - $58.27 $1.54 Million - $1.91 Million	32,702 Added 16.36%	232,628 $11.3 Million
Q4 2022 Feb 14, 2023	BUY	$52.05 - $65.0 $3.06 Million - $3.82 Million	58,818 Added 41.68%	199,926 $12 Million
Q3 2022 Nov 14, 2022	SELL	$25.16 - $60.63 $458,339 - $1.1 Million	-18,217 Reduced 11.43%	141,108 $8.56 Million
Q2 2022 Aug 15, 2022	BUY	$22.73 - $39.98 $800,527 - $1.41 Million	35,219 Added 28.38%	159,325 $4.33 Million
Q1 2022 May 16, 2022	BUY	$30.27 - $49.22 $1.03 Million - $1.67 Million	33,927 Added 37.62%	124,106 $4.54 Million
Q4 2021 Feb 14, 2022	BUY	$42.11 - $73.26 $1.89 Million - $3.29 Million	44,875 Added 99.05%	90,179 $4.46 Million
Q3 2021 Nov 15, 2021	BUY	$48.2 - $78.89 $2.18 Million - $3.57 Million	45,304 New	45,304 $3.23 Million

Others Institutions Holding PRTA

# of Institutions

184

Shares Held

42.7M

Call Options Held

162K

Put Options Held

102K

View Full List

About PROTHENA CORP PUBLIC LTD CO

Ticker PRTA
Exchange NASDAQ
Sector Healthcare
Industry Biotechnology
Shares Outstandng 46,922,800
Market Cap $714M
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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Granahan Investment Management, LLC Prothena Corp Public LTD CO Transaction History