Director Todd W. Fennell filed a Form 3 Initial Statement of Beneficial Ownership with the SEC on November 13, 2026, reporting his status as a director of Prothena Corp Public Ltd Co as of November 6, 2026.

Key Highlights

  • Reporting person: Todd W. Fennell, listed as a director of Prothena Corp Public Ltd Co (NASDAQ:PRTA).
  • Event date: The date of the event requiring the statement is November 6, 2026, according to the filing.
  • No securities held: The filing states explicitly, "No securities are beneficially owned."
  • Tables empty: Both Table I (non-derivative securities) and Table II (derivative securities) contain no entries.
  • Signed by proxy: The form was signed by Reid E. Buchanan by power of attorney from Todd W. Fennell on November 13, 2026.

Fennell Reports No Beneficial Ownership Upon Joining Prothena Board

According to the filing, Todd W. Fennell submitted a Form 3 Initial Statement of Beneficial Ownership, which is required when a person first becomes subject to Section 16(a) of the Securities Exchange Act of 1934 in relation to an issuer. The filing identifies Fennell's relationship to Prothena Corp Public Ltd Co (NASDAQ:PRTA) solely as a director, with the triggering event dated November 6, 2026.

The filing discloses that Fennell holds no beneficial ownership of any securities of Prothena, either directly or indirectly. Table I, covering non-derivative securities, and Table II, covering derivative securities such as options, warrants, or convertible instruments, are both left blank. The filing includes the explanatory note: "No securities are beneficially owned." Fennell's address is listed as 979 Beachland Boulevard, Vero Beach, Florida 32963.

The form was signed on November 13, 2026, by Reid E. Buchanan acting under a power of attorney from Fennell. The filing was submitted by one reporting person, as indicated by the checked box for individual filing.

What Was Disclosed

Prothena Corp Public Ltd Co director Todd W. Fennell filed an initial beneficial ownership statement as of November 6, 2026, disclosing that he holds no securities, derivative or otherwise, in the company at the time of filing.