NASDAQ:PRTA | Insider Transactions | PROTHENA CORP PUBLIC LTD CO

PRTA Insider Transactions

440 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.

PRTA insiders transaction timeline

PurchaseSale
2014-02-03: 3 sales — ELAN CORP PLC, Elan Science One Ltd, PERRIGO Co plc2014-05-09: 2 purchases — Nguyen Tran, Kinney Gene G.2014-05-12: 3 purchases — Nickerson Tara, Schenk Dale B.2014-06-06: 1 sale — Walker Karin L2014-08-07: 1 purchase — HOMAN ARTHUR W2014-08-12: 1 sale — Walker Karin L2014-10-16: 2 sales — Walker Karin L2014-12-09: 1 sale — Walker Karin L2015-02-10: 1 sale — Walker Karin L2015-03-09: 1 sale — Selkoe Dennis J.2015-03-20: 1 sale — Nickerson Tara2015-06-01: 3 sales — Selkoe Dennis J.2015-06-09: 2 sales — Nickerson Tara2015-08-07: 6 sales — HENNEY CHRISTOPHER S2015-08-12: 5 sales — Walker Karin L2015-08-20: 3 sales — Schenk Dale B.2015-09-01: 6 sales — HOMAN ARTHUR W, Koller Martin, Selkoe Dennis J.2015-09-02: 1 sale — Koller Martin2015-09-09: 3 sales — Nickerson Tara2015-10-29: 1 sale — HENNEY CHRISTOPHER S2015-11-02: 1 sale — HOMAN ARTHUR W2015-11-13: 1 sale — Koller Martin2015-11-17: 5 sales — Schenk Dale B.2015-11-25: 3 sales — Ekman Lars2015-11-27: 1 sale — HENNEY CHRISTOPHER S2015-12-01: 3 sales — Selkoe Dennis J.2015-12-09: 9 sales — Nickerson Tara, Kinney Gene G., Nguyen Tran2016-01-04: 3 sales — HOMAN ARTHUR W2016-01-13: 4 sales — Walker Karin L2016-04-04: 1 sale — Selkoe Dennis J.2016-04-13: 4 sales — Walker Karin L2016-05-23: 1 sale — Selkoe Dennis J.2016-05-24: 1 sale — Selkoe Dennis J.2016-07-20: 1 sale — HOMAN ARTHUR W2016-08-22: 2 sales — Selkoe Dennis J.2016-09-01: 1 sale — HOMAN ARTHUR W2016-09-19: 4 sales — Walker Karin L2016-10-13: 4 sales — Walker Karin L2016-10-20: 1 sale — Kinney Gene G.2016-10-21: 1 sale — Kinney Gene G.2016-11-09: 2 sales — HOMAN ARTHUR W, Kinney Gene G.2016-11-28: 2 sales — Selkoe Dennis J.2017-01-03: 1 sale — HOMAN ARTHUR W2017-01-04: 1 sale — HOMAN ARTHUR W2017-02-17: 1 sale — HENNEY CHRISTOPHER S2017-02-27: 1 sale — HENNEY CHRISTOPHER S2017-02-28: 1 sale — Kinney Gene G.2017-03-01: 4 sales — Selkoe Dennis J., HOMAN ARTHUR W, Kinney Gene G.2017-03-09: 1 purchase — Nguyen Tran2017-04-03: 1 sale — Selkoe Dennis J.2017-04-17: 3 sales — Walker Karin L2017-07-07: 2 sales — Selkoe Dennis J.2017-07-17: 3 sales — HENNEY CHRISTOPHER S, Walker Karin L2017-09-25: 2 sales — Nickerson Tara2017-09-27: 1 sale — Nickerson Tara2017-09-28: 5 sales — Nickerson Tara, Walker Karin L, Kinney Gene G. and 2 more2017-10-02: 2 sales — Selkoe Dennis J.2021-02-12: 2 purchases — EcoR1 Capital, LLC2021-02-12: 2 sales — Zago Wagner M.2021-02-16: 1 purchase — EcoR1 Capital, LLC2021-02-17: 1 purchase — EcoR1 Capital, LLC2021-02-18: 2 purchases — EcoR1 Capital, LLC2021-02-18: 1 sale — Zago Wagner M.2021-02-23: 1 purchase — EcoR1 Capital, LLC2021-02-24: 1 purchase — EcoR1 Capital, LLC2021-03-24: 1 purchase — EcoR1 Capital, LLC2021-06-22: 4 sales — Zago Wagner M.2021-06-25: 2 sales — HENNEY CHRISTOPHER S2021-07-12: 26 sales — HENNEY CHRISTOPHER S2021-07-14: 2 sales — HENNEY CHRISTOPHER S2021-07-30: 2 sales — Selkoe Dennis J.2021-09-09: 2 sales — Karp Carol D.2021-10-01: 9 sales — Selkoe Dennis J., Karp Carol D.2021-10-20: 3 sales — Walker Karin L2021-10-27: 4 sales — Malecek Michael J2021-11-01: 3 sales — Karp Carol D.2021-11-19: 1 sale — Malecek Michael J2021-11-23: 2 sales — Walker Karin L2022-01-03: 3 sales — Selkoe Dennis J.2022-01-12: 1 purchase — EcoR1 Capital, LLC2022-04-05: 2 sales — COLLIER RICHARD T2022-04-11: 3 sales — Cooke Shane2022-05-05: 1 purchase — EcoR1 Capital, LLC2022-05-05: 1 sale — EcoR1 Capital, LLC2022-07-06: 1 sale — Garren Hideki2022-07-20: 3 sales — Nguyen Tran, Cooke Shane2022-07-21: 2 sales — Nguyen Tran2022-07-22: 1 sale — Nguyen Tran2022-07-27: 1 sale — Kinney Gene G.2022-08-01: 1 sale — Garren Hideki2022-08-04: 1 sale — Kinney Gene G.2022-08-05: 2 sales — Kinney Gene G.2022-08-10: 1 sale — Kinney Gene G.2022-08-11: 1 sale — Kinney Gene G.2022-08-12: 1 sale — Kinney Gene G.2022-08-17: 1 sale — Kinney Gene G.2022-08-24: 1 sale — Nguyen Tran2022-09-15: 1 sale — Garren Hideki2022-09-21: 2 sales — Kinney Gene G., Nguyen Tran2022-09-28: 13 sales — Kinney Gene G., Cooke Shane, COLLIER RICHARD T and 1 more2022-10-03: 5 sales — Garren Hideki, Ekman Lars2022-10-05: 4 sales — COLLIER RICHARD T2022-10-10: 2 sales — Cooke Shane2022-10-19: 4 sales — Nguyen Tran2022-10-24: 4 sales — Walker Karin L2022-10-26: 3 sales — Malecek Michael J2022-10-27: 1 sale — Malecek Michael J2022-11-01: 6 sales — Ekman Lars, Garren Hideki2022-11-07: 3 sales — COLLIER RICHARD T2022-11-10: 3 sales — Cooke Shane2022-11-18: 2 sales — Walker Karin L2022-11-23: 3 sales — Nguyen Tran2022-11-30: 7 sales — Malecek Michael J2022-12-01: 3 sales — Garren Hideki, Ekman Lars2022-12-05: 5 sales — COLLIER RICHARD T2022-12-12: 3 sales — Cooke Shane2022-12-21: 2 sales — Nguyen Tran2023-01-03: 7 sales — Ekman Lars2023-01-05: 1 sale — COLLIER RICHARD T2023-01-10: 1 sale — Cooke Shane2023-01-18: 3 sales — Nguyen Tran2023-02-15: 2 sales — Nguyen Tran2023-03-15: 8 sales — Walker Karin L, Nguyen Tran, Malecek Michael J and 1 more2023-03-20: 2 sales — Walker Karin L2023-03-29: 2 sales — Malecek Michael J2023-04-19: 2 sales — Walker Karin L2023-04-26: 2 sales — Malecek Michael J2023-05-03: 1 sale — Selkoe Dennis J.2023-05-17: 8 sales — Kinney Gene G., Nguyen Tran2023-05-19: 2 sales — Walker Karin L2023-05-31: 3 sales — Malecek Michael J2023-06-07: 8 sales — Zago Wagner M., Karp Carol D.2023-06-14: 8 sales — Smith Brandon S., Garren Hideki2023-06-16: 1 sale — Garren Hideki2023-06-20: 3 sales — Walker Karin L2023-06-28: 3 sales — Malecek Michael J2023-07-03: 1 sale — Selkoe Dennis J.2023-07-05: 4 sales — Karp Carol D., Zago Wagner M.2023-07-12: 4 sales — Garren Hideki, Smith Brandon S.2023-07-19: 2 sales — Walker Karin L2023-07-26: 3 sales — Malecek Michael J2023-08-02: 4 sales — Zago Wagner M., Karp Carol D.2023-08-16: 6 sales — Garren Hideki, Smith Brandon S.2023-08-18: 1 sale — Walker Karin L2023-08-30: 3 sales — Malecek Michael J2023-09-06: 2 sales — Karp Carol D.2023-09-13: 3 sales — Garren Hideki, Smith Brandon S.2023-09-19: 1 sale — Walker Karin L2023-09-27: 2 sales — Malecek Michael J2023-10-04: 2 sales — Karp Carol D.2023-10-11: 2 sales — Smith Brandon S.2023-10-25: 3 sales — Walker Karin L2023-11-30: 1 sale — Walker Karin L2023-12-20: 2 sales — Walker Karin L2024-01-24: 1 sale — Walker Karin L2024-12-18: 1 purchase — SCULLY WILLIAM P2024-12-20: 1 purchase — SCULLY WILLIAM P2024-12-31: 3 purchases — SCULLY WILLIAM P2025-01-14: 1 purchase — SCULLY WILLIAM P2025-05-02: 1 sale — EcoR1 Capital, LLC2025-05-05: 1 sale — EcoR1 Capital, LLC2025-05-06: 1 sale — EcoR1 Capital, LLC2026-05-22: 1 purchase — SCULLY WILLIAM P2026-06-02: 1 purchase — SCULLY WILLIAM P2026-06-04: 1 purchase — SCULLY WILLIAM P2026-06-11: 1 purchase — SCULLY WILLIAM P2026-06-16: 1 purchase — SCULLY WILLIAM P2026-07-29: 2 sales — Kingston Anne Evans, Isaacs Michael John2026-08-07: 2 purchases — SCULLY WILLIAM P2026-08-20: 1 purchase — SCULLY WILLIAM P2014-02-032026-08-20
Insider profileRoleDateTransactionSharesPrice
SCULLY WILLIAM PTen Percent Owner2026-08-20Purchase50,000$8.7886
SCULLY WILLIAM PTen Percent Owner2026-08-07Purchase3,500$8.6192
SCULLY WILLIAM PTen Percent Owner2026-08-07Purchase34,000$8.6192
Kingston Anne EvansChief Strategy Officer2026-07-29Sale7,662$8.4729
Isaacs Michael JohnGeneral Counsel & Company Sec.2026-07-29Sale8,386$8.4731
SCULLY WILLIAM PTenPercentOwner2026-06-16Purchase20,000.0$7.9
SCULLY WILLIAM PTenPercentOwner2026-06-11Purchase125,000.0$8.17
SCULLY WILLIAM PTenPercentOwner2026-06-04Purchase50,000.0$9.31
SCULLY WILLIAM PTenPercentOwner2026-06-02Purchase50,000.0$9.43
SCULLY WILLIAM PTenPercentOwner2026-05-22Purchase100,000.0$9.81
EcoR1 Capital, LLCTenPercentOwner2025-05-06Sale1,984,053.0$7.64
EcoR1 Capital, LLCTenPercentOwner2025-05-05Sale977,693.0$8.11
EcoR1 Capital, LLCTenPercentOwner2025-05-02Sale3,317,938.0$8.36
SCULLY WILLIAM PTenPercentOwner2025-01-14Purchase100,000.0$12.79
SCULLY WILLIAM PTenPercentOwner2024-12-31Purchase30,000.0$12.99
SCULLY WILLIAM PTenPercentOwner2024-12-31Purchase800.0$13.39
SCULLY WILLIAM PTenPercentOwner2024-12-31Purchase1,200.0$13.37
SCULLY WILLIAM PTenPercentOwner2024-12-20Purchase2,000.0$15.91
SCULLY WILLIAM PTenPercentOwner2024-12-18Purchase73,436.0$13.93
Walker Karin LChief Accounting Officer2024-01-24Sale5,000.0$34.0
Walker Karin LChief Accounting Officer2023-12-20Sale3,322.0$37.45
Walker Karin LChief Accounting Officer2023-12-20Sale1,678.0$36.68
Walker Karin LChief Accounting Officer2023-11-30Sale5,000.0$34.0
Walker Karin LChief Accounting Officer2023-10-25Sale294.0$42.28
Walker Karin LChief Accounting Officer2023-10-25Sale2,917.0$41.38
Walker Karin LChief Accounting Officer2023-10-25Sale1,789.0$40.27
Smith Brandon S.Chief Operating Officer2023-10-11Sale444.0$47.74
Smith Brandon S.Chief Operating Officer2023-10-11Sale3,556.0$46.62
Karp Carol D.Chief Regulatory Officer2023-10-04Sale663.0$47.29
Karp Carol D.Chief Regulatory Officer2023-10-04Sale4,337.0$46.51
Malecek Michael JChief Legal Officer2023-09-27Sale404.0$48.31
Malecek Michael JChief Legal Officer2023-09-27Sale4,596.0$47.29
Walker Karin LChief Accounting Officer2023-09-19Sale5,000.0$52.36
Garren HidekiChief Medical Officer2023-09-13Sale2,000.0$55.48
Smith Brandon S.Chief Operating Officer2023-09-13Sale114.0$55.96
Smith Brandon S.Chief Operating Officer2023-09-13Sale3,886.0$55.48
Karp Carol D.Chief Regulatory Officer2023-09-06Sale6.0$55.27
Karp Carol D.Chief Regulatory Officer2023-09-06Sale4,994.0$54.76
Malecek Michael JChief Legal Officer2023-08-30Sale14.0$56.21
Malecek Michael JChief Legal Officer2023-08-30Sale2,664.0$55.39
Malecek Michael JChief Legal Officer2023-08-30Sale2,322.0$54.58
Walker Karin LChief Accounting Officer2023-08-18Sale5,000.0$57.18
Garren HidekiChief Medical Officer2023-08-16Sale374.0$59.74
Garren HidekiChief Medical Officer2023-08-16Sale748.0$58.93
Garren HidekiChief Medical Officer2023-08-16Sale878.0$58.15
Smith Brandon S.Chief Operating Officer2023-08-16Sale401.0$59.91
Smith Brandon S.Chief Operating Officer2023-08-16Sale1,373.0$59.15
Smith Brandon S.Chief Operating Officer2023-08-16Sale2,226.0$58.22
Zago Wagner M.Chief Scientific Officer2023-08-02Sale229.0$68.07
Zago Wagner M.Chief Scientific Officer2023-08-02Sale3,771.0$66.98
Karp Carol D.Chief Regulatory Officer2023-08-02Sale328.0$67.95
Karp Carol D.Chief Regulatory Officer2023-08-02Sale4,672.0$66.95
Malecek Michael JChief Legal Officer2023-07-26Sale620.0$63.4
Malecek Michael JChief Legal Officer2023-07-26Sale1,903.0$62.69
Malecek Michael JChief Legal Officer2023-07-26Sale2,477.0$61.78
Walker Karin LChief Accounting Officer2023-07-19Sale1,034.0$70.08
Walker Karin LChief Accounting Officer2023-07-19Sale3,966.0$68.96
Garren HidekiChief Medical Officer2023-07-12Sale92.0$68.2
Garren HidekiChief Medical Officer2023-07-12Sale1,908.0$67.48
Smith Brandon S.Chief Operating Officer2023-07-12Sale800.0$67.95
Smith Brandon S.Chief Operating Officer2023-07-12Sale3,200.0$67.4
Karp Carol D.Chief Regulatory Officer2023-07-05Sale1,034.0$68.69
Karp Carol D.Chief Regulatory Officer2023-07-05Sale3,966.0$67.98
Zago Wagner M.Chief Scientific Officer2023-07-05Sale1,009.0$68.69
Zago Wagner M.Chief Scientific Officer2023-07-05Sale2,991.0$67.98
Selkoe Dennis J.Director2023-07-03Sale5,000.0$67.43
Malecek Michael JChief Legal Officer2023-06-28Sale710.0$70.84
Malecek Michael JChief Legal Officer2023-06-28Sale3,050.0$69.89
Malecek Michael JChief Legal Officer2023-06-28Sale1,240.0$69.07
Walker Karin LChief Accounting Officer2023-06-20Sale529.0$69.99
Walker Karin LChief Accounting Officer2023-06-20Sale2,471.0$69.49
Walker Karin LChief Accounting Officer2023-06-20Sale2,000.0$67.88
Garren HidekiChief Medical Officer2023-06-16Sale7,331.0$74.0
Smith Brandon S.Chief Operating Officer2023-06-14Sale1,362.0$75.56
Smith Brandon S.Chief Operating Officer2023-06-14Sale959.0$74.69
Smith Brandon S.Chief Operating Officer2023-06-14Sale1,914.0$73.35
Smith Brandon S.Chief Operating Officer2023-06-14Sale1,098.0$72.52
Garren HidekiChief Medical Officer2023-06-14Sale655.0$75.49
Garren HidekiChief Medical Officer2023-06-14Sale2,534.0$74.59
Garren HidekiChief Medical Officer2023-06-14Sale971.0$73.31
Garren HidekiChief Medical Officer2023-06-14Sale509.0$72.45
Zago Wagner M.Chief Scientific Officer2023-06-07Sale294.0$73.14
Zago Wagner M.Chief Scientific Officer2023-06-07Sale3,759.0$71.96
Zago Wagner M.Chief Scientific Officer2023-06-07Sale12,004.0$70.99
Zago Wagner M.Chief Scientific Officer2023-06-07Sale2,943.0$70.02
Karp Carol D.Chief Regulatory Officer2023-06-07Sale361.0$72.93
Karp Carol D.Chief Regulatory Officer2023-06-07Sale3,811.0$71.97
Karp Carol D.Chief Regulatory Officer2023-06-07Sale12,782.0$71.0
Karp Carol D.Chief Regulatory Officer2023-06-07Sale3,046.0$69.9
Malecek Michael JChief Legal Officer2023-05-31Sale711.0$65.98
Malecek Michael JChief Legal Officer2023-05-31Sale1,078.0$65.2
Malecek Michael JChief Legal Officer2023-05-31Sale3,211.0$64.16
Walker Karin LChief Accounting Officer2023-05-19Sale2,177.0$74.47
Walker Karin LChief Accounting Officer2023-05-19Sale2,823.0$73.63
Kinney Gene G.President and CEO2023-05-17Sale14,934.0$74.49
Kinney Gene G.President and CEO2023-05-17Sale19,864.0$73.6
Kinney Gene G.President and CEO2023-05-17Sale10,202.0$72.7
Nguyen TranChief Strategy Officer and CFO2023-05-17Sale100.0$76.04
Nguyen TranChief Strategy Officer and CFO2023-05-17Sale9,215.0$75.44
Nguyen TranChief Strategy Officer and CFO2023-05-17Sale37,044.0$74.55