PROTHENA CORP PUBLIC LTD CO (PRTA)

Nasdaq · Pharmaceutical Preparations · Inc. L2

What they're doing

Between 2026-08-02 and 2026-10-31, public records show 14 signals for PROTHENA CORP PUBLIC LTD CO. Most notable: 2026-09-29: SCULLY WILLIAM P (ten_percent_owner) bought $1.4M of stock; 2026-10-07: SCULLY WILLIAM P (ten_percent_owner) bought $1.1M of stock; 2026-09-28: SCULLY WILLIAM P (ten_percent_owner) bought $890k of stock. Federal contract obligations over the last 24 months total $0. This summary was assembled automatically from SEC EDGAR, USAspending.gov, U.S. Senate lobbying disclosures and Wikimedia pageview counts.

Generated 2026-10-31 from public records.

Signals, last 12 months

  1. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $404k of stock
  2. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $819k of stock
  3. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $85k of stock
  4. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $835k of stock
  5. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $771k of stock
  6. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $1.1M of stock
  7. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $857k of stock
  8. Material 8-K filing
    Filed 8-K disclosing director or officer change
  9. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $1.4M of stock
  10. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $890k of stock
  11. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $843k of stock
  12. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $256k of stock
  13. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $439k of stock
  14. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $293k of stock
  15. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $158k of stock
  16. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $1.0M of stock
  17. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $466k of stock
  18. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $472k of stock
  19. Insider purchase
    SCULLY WILLIAM P (ten_percent_owner) bought $981k of stock
  20. Material 8-K filing
    Filed 8-K disclosing director or officer change

Insider transactions

DateInsiderRoleCodeSharesPriceValue
2026-10-27SCULLY WILLIAM Pten percent ownerG566,4440$0
2026-10-23SCULLY WILLIAM Pten percent ownerP50,0008.07$403,525
2026-10-22SCULLY WILLIAM Pten percent ownerP100,0008.19$818,520
2026-10-14SCULLY WILLIAM Pten percent ownerP10,0008.46$84,569
2026-10-13SCULLY WILLIAM Pten percent ownerP100,0008.35$835,480
2026-10-08SCULLY WILLIAM Pten percent ownerP90,0008.57$770,904
2026-10-07SCULLY WILLIAM Pten percent ownerP125,0008.4$1,050,150
2026-10-02SCULLY WILLIAM Pten percent ownerP100,0008.57$857,240
2026-09-29SCULLY WILLIAM Pten percent ownerP162,0008.68$1,405,674
2026-09-28SCULLY WILLIAM Pten percent ownerP103,5008.6$889,872
2026-09-18SCULLY WILLIAM Pten percent ownerP100,0008.43$843,460
2026-09-02SCULLY WILLIAM Pten percent ownerP27,0009.47$255,739
2026-08-20SCULLY WILLIAM Pten percent ownerP50,0008.79$439,430
2026-08-18SCULLY WILLIAM Pten percent ownerG627,5530$0
2026-08-17SCULLY WILLIAM Pten percent ownerG336,0000$0
2026-08-10SCULLY WILLIAM Pten percent ownerG251,5530$0
2026-08-07SCULLY WILLIAM Pten percent ownerP34,0008.62$293,053
2026-08-07SCULLY WILLIAM Pten percent ownerP3,5008.62$30,167
2026-07-29Kingston Anne EvansofficerS7,6628.47$64,919
2026-07-29Isaacs Michael JohnofficerS8,3868.47$71,055
2026-07-28Zago Wagner M.officerM51,000——
2026-07-28Zago Wagner M.officerD51,0008.56$436,560
2026-07-28Walker Karin LofficerM15,000——
2026-07-28Walker Karin LofficerD15,0008.56$128,400
2026-07-28Swanson Chad J.officerM51,000——
2026-07-28Swanson Chad J.officerD40,8008.56$349,248
2026-07-28Swanson Chad J.officerF3,4678.56$29,678
2026-07-28Smith Brandon S.officerM78,000——
2026-07-28Smith Brandon S.officerD78,0008.56$667,680
2026-07-28Nguyen TranofficerM57,000——
2026-07-28Nguyen TranofficerD57,0008.56$487,920
2026-07-28Kinney Gene G.directorM84,000——
2026-07-28Kinney Gene G.directorD84,0008.56$719,040
2026-07-28Kingston Anne EvansofficerF3,4988.56$29,943
2026-07-28Isaacs Michael JohnofficerF4,6948.56$40,181
2026-06-16SCULLY WILLIAM Pten percent ownerP20,0007.9$158,000
2026-06-16SCULLY WILLIAM Pten percent ownerP20,0007.9$157,990
2026-06-15SCULLY WILLIAM Pten percent ownerG325,0000$0
2026-06-15SCULLY WILLIAM Pten percent ownerG325,0000$0
2026-06-11SCULLY WILLIAM Pten percent ownerP125,0008.17$1,021,250
2026-06-11SCULLY WILLIAM Pten percent ownerP125,0008.17$1,021,225
2026-06-04SCULLY WILLIAM Pten percent ownerP50,0009.31$465,500
2026-06-04SCULLY WILLIAM Pten percent ownerP50,0009.31$465,295
2026-06-02SCULLY WILLIAM Pten percent ownerP50,0009.43$471,500
2026-06-02SCULLY WILLIAM Pten percent ownerP50,0009.43$471,300
2026-05-22SCULLY WILLIAM Pten percent ownerP100,0009.81$981,000
2026-05-22SCULLY WILLIAM Pten percent ownerP100,0009.81$981,300
2025-07-28Zago Wagner M.officerA85,0000$0
2025-07-28Walker Karin LofficerA25,0000$0
2025-07-28Swanson Chad J.officerA85,0000$0

Federal contracts

No federal contract actions on record for this recipient mapping.

Lobbying

No federal lobbying filings on record for this client mapping.

Public attention

No Wikipedia pageview data linked to this company.

Recent filings

  • 2026-10-29 4
  • 2026-10-29 8-K
  • 2026-10-26 4
  • 2026-10-15 4
  • 2026-10-09 4
  • 2026-10-06 4
  • 2026-10-02 8-K
  • 2026-09-30 4
  • 2026-09-29 4
  • 2026-09-21 4
  • 2026-09-03 4
  • 2026-08-21 4
  • 2026-08-19 SCHEDULE 13G/A
  • 2026-08-18 3
  • 2026-08-18 4
  • 2026-08-14 SCHEDULE 13G/A
  • 2026-08-11 4
  • 2026-08-11 3
  • 2026-08-10 4
  • 2026-08-06 10-Q