PRTA

PROTHENA CORP PUBLIC LTD CO

Healthcare · Biotechnology

$226.96 sample

+3.56 (+1.59%) 1D

Market cap

$1.19T

Price as of

2026-10-15

Latest filing

8-K · 2026-09-24

Alerts

8

Price$226.96 +2.05% 3M daily closessample

231.98215.14

2026-07-202026-08-112026-09-022026-09-232026-10-15

purchase / approvalsale / rejectionfiling / neutral

Latest events

Filings, trades, FDA; newest first

Oct 07INSInsider sell: Chief Executive Officer
Sep 29INSInsider buy: 10% owner
Sep 24SECDEF 14A filed
Sep 16SECForm 144 filed
Sep 09INSInsider sell: General Counsel
Sep 03INSInsider buy: Chief Executive Officer
Aug 28INSInsider sell: Chief Executive Officer
Aug 19SEC8-K filed: material event

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Company facts

SEC EDGAR registration

Name: PROTHENA CORP PUBLIC LTD CO
Sector: Healthcare
Industry: Biotechnology
Smart-money score: -39sample, -100 to +100
Reporting currency: USD

Who is positioning in PRTA

sample

Insiders: 19 insider transactions over 90 days, net selling, $588.4M
Congress: 1 members traded over 90 days
Institutions · 13F: 41 funds hold $9.4B
Activists · 13D/G: No 13D/13G activist filings on record

How are the fundamentals trending?

sample, by period end

Revenue$40.9B +19.8% y/y

Q4 2024Q3 2026

Inventory$24.1B +18.8% y/y

Q4 2024Q3 2026

Accounts receivable$18.1B +16.8% y/y

Q4 2024Q3 2026

Total debt$47.2B +11.3% y/y

Q4 2024Q3 2026

Peers

sample

Sample peer A: $680.2B +13.3% 3M
Sample peer B: $253.7B -10.4% 3M
Sample peer C: $623.4B +5.4% 3M
Sample peer D: $473.6B -4.0% 3M
Sample peer E: $420.5B +0.7% 3M