Insider · CIK 0001528617

PEARSON TIMOTHY R

Reports to the SEC for 5 companies · CAMBRIDGE, MA

sec.gov

Transactions

Companies

Filings

CIK

0001528617

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-06-10	KRROKorro Bio, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+14.7K sh	—	—	14,677
2025-06-11	KRROKorro Bio, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+6,010 sh	—	—	6,010
2024-06-11	KRROKorro Bio, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+5,190 sh	—	—	5,190
2024-05-01	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+40K sh	—	—	40,000
2023-11-03	KRROKorro Bio, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+16K sh	—	—	16,000
2023-05-19	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+35K sh	—	—	35,000
2022-11-11	CBIOCRESCENT BIOPHARMA, INC.P Purchase	Director	PPurchase	+19.4K sh	$1.29	+$25K	24,650
2022-05-18	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+21K sh	—	—	21,000
2021-05-18	CBIOCRESCENT BIOPHARMA, INC.A Award	Director	AAward	+5,250 sh	—	—	5,250
2021-05-18	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+10.5K sh	—	—	10,500
2020-05-22	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+21K sh	—	—	21,000
2020-04-02	Ra Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−22.9K sh	—	—	0
2020-04-02	Ra Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−15K sh	—	—	0
2020-04-02	Ra Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−15K sh	—	—	0
2020-04-02	Ra Pharmaceuticals, Inc.Stock Option (Right to Buy)D Disposition to Issuer	Director	DDisposition to Issuer	−15K sh	—	—	0
2019-06-11	Ra Pharmaceuticals, Inc.Option to Purchase Common StockA Award	Director	AAward	+15K sh	—	—	15,000
2019-05-17	CBIOCRESCENT BIOPHARMA, INC. · Common StockA Award	Director	AAward	+21K sh	—	—	21,000
2019-01-22	TESARO, Inc.U Disposition from Tender	Exec. VP, CFO	UDisposition from Tender	−6,211 sh	$75.00	−$466K	0
2019-01-22	TESARO, Inc.Restricted Stock UnitsD Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−8,750 sh	—	—	0
2019-01-22	TESARO, Inc.Restricted Stock UnitsD Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−4,447 sh	—	—	0
2019-01-22	TESARO, Inc.Restricted Stock UnitsD Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−18.2K sh	—	—	0
2019-01-22	TESARO, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−125K sh	—	—	0
2019-01-22	TESARO, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−55K sh	—	—	0
2019-01-22	TESARO, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−35K sh	—	—	0
2019-01-22	TESARO, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−10.8K sh	—	—	0
2019-01-22	TESARO, Inc.Employee Stock Option (right to buy)D Disposition to Issuer	Exec. VP, CFO	DDisposition to Issuer	−32K sh	—	—	0
2018-06-28	Ra Pharmaceuticals, Inc.Options to Purchase Common StockA Award	Director	AAward	+15K sh	—	—	15,000
2018-05-18	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+11K sh	—	—	11,000
2018-03-02	TESARO, Inc.S Sale	Exec. VP, CFO	SSale	−2,575 sh	$54.86	−$141K	6,211
2018-03-01	TESARO, Inc.M Exercise/Conversion	Exec. VP, CFO	MExercise/Conversion	+4,375 sh	—	—	7,303
2018-03-01	TESARO, Inc.M Exercise/Conversion	Exec. VP, CFO	MExercise/Conversion	+1,483 sh	—	—	8,786
2018-03-01	TESARO, Inc.Restricted Stock UnitsM Exercise/Conversion	Exec. VP, CFO	MExercise/Conversion	−4,375 sh	—	—	8,750
2018-03-01	TESARO, Inc.Restricted Stock UnitsM Exercise/Conversion	Exec. VP, CFO	MExercise/Conversion	−1,483 sh	—	—	4,447
2018-03-01	TESARO, Inc.Restricted Stock UnitsA Award	Exec. VP, CFO	AAward	+18.2K sh	—	—	18,182
2018-03-01	TESARO, Inc.Employee Stock Option (right to buy)A Award	Exec. VP, CFO	AAward	+32K sh	—	—	31,954
2017-06-20	Ra Pharmaceuticals, Inc.Options to Purchase Common StockA Award	Director	AAward	+15K sh	—	—	15,000
2017-05-25	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+11K sh	—	—	11,000
2017-03-02	TESARO, Inc.S Sale	Exec. VP, CFO	SSale	−1,447 sh	$177.61	−$257K	2,928
2017-03-01	TESARO, Inc.M Exercise/Conversion	Exec. VP, CFO	MExercise/Conversion	+4,375 sh	—	—	4,375
2017-03-01	TESARO, Inc.Restricted Stock UnitsM Exercise/Conversion	Exec. VP, CFO	MExercise/Conversion	−4,375 sh	—	—	13,125
2017-03-01	TESARO, Inc.Restricted Stock UnitsA Award	Exec. VP, CFO	AAward	+5,930 sh	—	—	5,930
2017-03-01	TESARO, Inc.Employee Stock Option (right to buy)A Award	Exec. VP, CFO	AAward	+10.8K sh	—	—	10,782
2016-05-17	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+11K sh	—	—	11,000
2016-05-17	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+11K sh	—	—	11,000
2016-03-01	TESARO, Inc.Restricted Stock UnitsA Award	Exec. VP, CFO	AAward	+17.5K sh	—	—	17,500
2016-03-01	TESARO, Inc.Employee Stock Option (right to buy)A Award	Exec. VP, CFO	AAward	+35K sh	—	—	35,000
2015-07-15	CBIOCRESCENT BIOPHARMA, INC. · Stock Option (right to buy)A Award	Director	AAward	+11K sh	—	—	11,000
2015-03-06	TESARO, Inc.Employee Stock Option (right to buy)A Award	Exec. VP, CFO	AAward	+55K sh	—	—	55,000
2012-07-02	CATALYST HEALTH SOLUTIONS, INC.D Disposition to Issuer	EVP & Chief Financial Officer	DDisposition to Issuer	−40K sh	—	—	0
2012-02-23	CATALYST HEALTH SOLUTIONS, INC.A Award	EVP & Chief Financial Officer	AAward	+10K sh	—	—	40,000

Recent filings

Accepted (ET)
Jun 114
PEARSON TIMOTHY R0001193125-26-267993
SEC(opens sec.gov)
Jun 124
PEARSON TIMOTHY R0000950170-25-085411
SEC(opens sec.gov)
Jun 124
PEARSON TIMOTHY R0000950170-24-072556
SEC(opens sec.gov)
May 14
PEARSON TIMOTHY R0001415889-24-011867
SEC(opens sec.gov)
Nov 74
PEARSON TIMOTHY R0000950170-23-060599
SEC(opens sec.gov)
May 224
PEARSON TIMOTHY R0001209191-23-031451
SEC(opens sec.gov)
Nov 144
PEARSON TIMOTHY R0001209191-22-056587
SEC(opens sec.gov)
May 204
PEARSON TIMOTHY R0001209191-22-031010
SEC(opens sec.gov)
May 274
PEARSON TIMOTHY R0001209191-21-036373
SEC(opens sec.gov)
May 274
PEARSON TIMOTHY R0001209191-20-032311
SEC(opens sec.gov)
Apr 34
PEARSON TIMOTHY R0001104659-20-042767
SEC(opens sec.gov)
Jun 134
PEARSON TIMOTHY R0001104659-19-035364
SEC(opens sec.gov)
May 214
PEARSON TIMOTHY R0001209191-19-031718
SEC(opens sec.gov)
Jan 224
PEARSON TIMOTHY R0001123292-19-000173
SEC(opens sec.gov)

Companies

Address

C/O KORRO BIO, INC. 60 FIRST STREET, 2ND FLOOR, SUITE 250

CAMBRIDGE, MA, 02141