Insider · CIK 0001299171

Hege Kristen

Reports to the SEC for 5 companies · CAMBRIDGE, MA

sec.gov

Transactions

Companies

Filings

CIK

0001299171

Forms 4 and 5

Insider transactions

43 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-01-06	MRSNMersana Therapeutics, Inc.U Disposition from Tender	Director	UDisposition from Tender	−578 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−2,460 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−142 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−400 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,000 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−450 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−368 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−101 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,002 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−416 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,800 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−138 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−734 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−146 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−380 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−257 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−2,200 sh	—	—	0
2026-01-06	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−2,088 sh	—	—	0
2025-06-12	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+61.5K sh	—	—	61,500
2024-07-01	ADAPAdaptimmune Therapeutics PLC · Option to purchase Ordinary SharesA Award	Director	AAward	+660K sh	—	—	660,000
2024-06-11	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+55K sh	—	—	55,000
2024-01-15	ADAPAdaptimmune Therapeutics PLC · Option to purchase Ordinary SharesA Award	Director	AAward	+81.9K sh	—	—	81,906
2024-01-02	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+6,447 sh	—	—	6,447
2023-10-02	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+9,523 sh	—	—	9,523
2023-07-19	LENZLENZ Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+20K sh	—	—	20,000
2023-07-03	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+3,654 sh	—	—	3,654
2023-06-08	MRSNMersana Therapeutics, Inc.A Award	Director	AAward	+14.5K sh	—	—	14,467
2023-06-08	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+18.4K sh	—	—	18,355
2023-04-03	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+3,451 sh	—	—	3,451
2022-06-21	LENZLENZ Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+20K sh	—	—	20,000
2022-06-09	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+45K sh	—	—	45,000
2022-01-03	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+10.4K sh	—	—	10,416
2021-06-11	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+25.1K sh	—	—	25,050
2021-01-15	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+2,547 sh	—	—	2,547
2020-06-25	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+9,200 sh	—	—	9,200
2020-01-02	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+11.3K sh	—	—	11,264
2019-06-07	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+25K sh	—	—	25,000
2019-06-06	RCUSArcus Biosciences, Inc. · Stock Option (Right to buy)A Award	Director	AAward	+35K sh	—	—	35,000
2018-10-19	RCUSArcus Biosciences, Inc. · Stock Option (right to buy)A Award	Director	AAward	+35K sh	—	—	35,000
2018-09-20	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+10K sh	—	—	10,000
2018-01-02	MRSNMersana Therapeutics, Inc. · Stock Option (right to buy)A Award	Director	AAward	+3,560 sh	—	—	3,560
2005-06-09	CELL GENESYS INCP Purchase	V.P. Clinical Research	PPurchase	+500 sh	$5.35	+$2,675	6,904
2005-02-03	CELL GENESYS INCStock Option (Rght to buy)A Award	V.P. Clinical Research	AAward	+42.5K sh	—	—	42,500

Recent filings

Accepted (ET)
Jan 64
Hege Kristen0001104659-26-001389
SEC(opens sec.gov)
Jun 134
Hege Kristen0001104659-25-059428
SEC(opens sec.gov)
Jul 14
Hege Kristen0001104659-24-076894
SEC(opens sec.gov)

Companies

Address

C/O MERSANA THERAPEUTICS, INC. 840 MEMORIAL DRIVE

CAMBRIDGE, MA, 02139