Insider · CIK 0001559422

Walker Karin L

Reports to the SEC for 4 companies · BRISBANE, CA

sec.gov

Transactions

Companies

Filings

CIK

0001559422

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-07-28	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+15K sh	—	—	25,000
2026-07-28	PRTAPROTHENA CORP PUBLIC LTD COD Disposition to Issuer	Chief Accounting Officer	DDisposition to Issuer	−15K sh	$8.56	−$128K	10,000
2026-07-28	PRTAPROTHENA CORP PUBLIC LTD CO · Restricted Stock UnitsM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−15K sh	—	—	0
2026-03-03	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)A Award	Chief Accounting Officer	AAward	+150K sh	—	—	150,000
2025-07-28	PRTAPROTHENA CORP PUBLIC LTD COA Award	Chief Accounting Officer	AAward	+25K sh	—	—	25,000
2025-03-05	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)A Award	Chief Accounting Officer	AAward	+70K sh	—	—	70,000
2024-02-27	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)A Award	Chief Accounting Officer	AAward	+54K sh	—	—	54,000
2024-01-24	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$13.53	+$67.7K	5,000
2024-01-24	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−5,000 sh	$34.00	−$170K	0
2024-01-24	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	15,000
2023-12-20	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$13.53	+$67.7K	5,000
2023-12-20	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−1,678 sh	$36.68	−$61.5K	3,322
2023-12-20	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−3,322 sh	$37.45	−$124K	0
2023-12-20	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	20,000
2023-11-30	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$13.53	+$67.7K	5,000
2023-11-30	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−5,000 sh	$34.00	−$170K	0
2023-11-30	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	25,000
2023-10-25	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$13.53	+$67.7K	5,000
2023-10-25	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−1,789 sh	$40.27	−$72K	3,211
2023-10-25	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−2,917 sh	$41.38	−$121K	294
2023-10-25	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−294 sh	$42.28	−$12.4K	0
2023-10-25	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	30,000
2023-09-19	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$15.04	+$75.2K	5,000
2023-09-19	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−5,000 sh	$52.36	−$262K	0
2023-09-19	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	481
2023-08-18	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$15.04	+$75.2K	5,000
2023-08-18	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−5,000 sh	$57.18	−$286K	0
2023-08-18	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (Right to Buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	5,481
2023-07-19	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$15.04	+$75.2K	5,000
2023-07-19	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−3,966 sh	$68.96	−$273K	1,034
2023-07-19	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−1,034 sh	$70.08	−$72.5K	0
2023-07-19	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (right to buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	10,481
2023-06-30	BGMSBio Green Med Solution, Inc.A Award	Director	AAward	+21.2K sh	—	—	40,602
2023-06-30	BGMSBio Green Med Solution, Inc. · Stock Option (right to buy)A Award	Director	AAward	+42.4K sh	—	—	42,438
2023-06-20	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$15.04	+$75.2K	5,000
2023-06-20	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−2,000 sh	$67.88	−$136K	3,000
2023-06-20	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−2,471 sh	$69.49	−$172K	529
2023-06-20	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−529 sh	$69.99	−$37K	0
2023-06-20	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (right to buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	15,481
2023-05-19	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$15.04	+$75.2K	5,000
2023-05-19	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−2,823 sh	$73.63	−$208K	2,177
2023-05-19	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−2,177 sh	$74.47	−$162K	0
2023-05-19	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (right to buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	20,481
2023-04-19	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$15.04	+$75.2K	5,000
2023-04-19	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−2,917 sh	$52.64	−$154K	2,083
2023-04-19	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−2,083 sh	$53.25	−$111K	0
2023-04-19	PRTAPROTHENA CORP PUBLIC LTD CO · Stock Option (right to buy)M Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	−5,000 sh	—	—	25,481
2023-03-20	PRTAPROTHENA CORP PUBLIC LTD COM Exercise/Conversion	Chief Accounting Officer	MExercise/Conversion	+5,000 sh	$15.04	+$75.2K	5,000
2023-03-20	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−3,903 sh	$47.51	−$185K	1,097
2023-03-20	PRTAPROTHENA CORP PUBLIC LTD COS Sale	Chief Accounting Officer	SSale	−1,097 sh	$48.47	−$53.2K	0

Recent filings

Accepted (ET)
Jul 304
Walker Karin L0000905148-26-003416
SEC(opens sec.gov)
Mar 54
Walker Karin L0000905148-26-001181
SEC(opens sec.gov)
Jul 304
Walker Karin L0000905148-25-002661
SEC(opens sec.gov)
Mar 74
Walker Karin L0000905148-25-000889
SEC(opens sec.gov)
Feb 294
Walker Karin L0000905148-24-000840
SEC(opens sec.gov)
Jan 244
Walker Karin L0000905148-24-000282
SEC(opens sec.gov)
Dec 204
Walker Karin L0000905148-23-001682
SEC(opens sec.gov)
Nov 304
Walker Karin L0000905148-23-001531
SEC(opens sec.gov)
Oct 254
Walker Karin L0000905148-23-001201
SEC(opens sec.gov)

Companies

Address

C/O PROTHENA BIOSCIENCES INC 1800 SIERRA POINT PARKWAY

BRISBANE, CA, 94005