PRTA
Prothena Corp Public Ltd CoCompany with tickers: PRTA
CIK
1559053
CUSIP
G72800108
Shares Outstanding
52,353,237
Website
https://www.prothena.com
Investor Relations
https://ir.prothena.com/overview/default.aspx
13F Activity (30d)
50 filings
48 filers
Share-repurchase activity from the company's own XBRL filings — cash spent on equity repurchases (common and preferred combined, as reported) per fiscal year and per recent quarter, share counts where the company tagged them, and the buyback program's authorization — paired with the company's at-the-market (ATM) equity offering programs, the dilution side of the same picture. Repurchase amounts come exclusively from tagged SEC data; program figures with no tagged equivalent (untagged authorizations and all ATM figures) are read from the filing's own text and shown only after verification.
Program Authorized
$100,000,000
as of 2026-02-27
Recent quarters
| Quarter Ended | Cash Spent | Source |
|---|---|---|
| 2026-03-31 | $6,946,000 | 10-Q, filed 2026-05-07 |
| 2025-03-31 | $0 | 10-Q, filed 2026-05-07 |