Insider · CIK 0001814617

Nicholson Donald William

Reports to the SEC for 3 companies · WATERTOWN, MA

sec.gov

Transactions

Companies

Filings

CIK

0001814617

Forms 4 and 5

Insider transactions

27 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-06-18	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+6,212 sh	—	—	6,212
2026-02-09	GBIOGeneration Bio Co.U Disposition from Tender	Director	UDisposition from Tender	−21.4K sh	—	—	0
2026-02-09	GBIOGeneration Bio Co. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−3,000 sh	—	—	0
2026-02-09	GBIOGeneration Bio Co. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−5,200 sh	—	—	0
2026-02-09	GBIOGeneration Bio Co. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,500 sh	—	—	0
2026-02-09	GBIOGeneration Bio Co. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−1,920 sh	—	—	0
2026-02-09	GBIOGeneration Bio Co. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−2,500 sh	—	—	0
2026-02-09	GBIOGeneration Bio Co. · Stock Option (right to buy)D Disposition to Issuer	Director	DDisposition to Issuer	−6,000 sh	—	—	0
2025-06-11	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+10K sh	—	—	10,000
2025-06-04	GBIOGeneration Bio Co. · Stock Option (right to buy)A Award	Director	AAward	+30K sh	—	—	30,000
2024-06-12	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+10K sh	—	—	10,000
2024-06-06	GBIOGeneration Bio Co. · Stock Option (right to buy)A Award	Director	AAward	+60K sh	—	—	60,000
2023-12-01	GBIOGeneration Bio Co.P Purchase	Director	PPurchase	+100K sh	$1.44	+$144K	213,576
2023-06-09	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+7,136 sh	—	—	7,136
2023-06-08	GBIOGeneration Bio Co. · Stock Option (right to buy)A Award	Director	AAward	+25K sh	—	—	25,000
2022-12-29	IRONDisc Medicine, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+7,000 sh	—	—	7,000
2022-06-15	KYMRKymera Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+12K sh	—	—	12,000
2022-06-09	GBIOGeneration Bio Co. · Stock Option (right to buy)A Award	Director	AAward	+19.2K sh	—	—	19,200
2022-03-10	GBIOGeneration Bio Co.P Purchase	Director	PPurchase	+8,126 sh	$4.71	+$38.3K	113,576
2022-03-09	GBIOGeneration Bio Co.P Purchase	Director	PPurchase	+2,293 sh	$4.79	+$11K	105,450
2021-06-16	KYMRKymera Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+20.1K sh	—	—	20,063
2021-06-09	GBIOGeneration Bio Co. · Stock Option (right to buy)A Award	Director	AAward	+15K sh	—	—	15,000
2021-01-11	GBIOGeneration Bio Co.P Purchase	Director	PPurchase	+4,081 sh	$24.50	+$100K	103,157
2020-08-20	KYMRKymera Therapeutics, Inc. · Stock Option (Right to Buy)A Award	Director	AAward	+40.1K sh	—	—	40,127
2020-06-16	GBIOGeneration Bio Co.C Conversion	Director	CConversion	+56.6K sh	—	—	99,076
2020-06-16	GBIOGeneration Bio Co. · Series A Preferred StockC Conversion	Director	CConversion	−100K sh	—	—	0
2020-06-11	GBIOGeneration Bio Co. · Stock Option (right to buy)A Award	Director	AAward	+52K sh	—	—	52,000

Recent filings

Accepted (ET)
Jun 234
Nicholson Donald William0001193125-26-279732
SEC(opens sec.gov)
Feb 94
Nicholson Donald William0001104659-26-012193
SEC(opens sec.gov)
Jun 134
Nicholson Donald William0000950170-25-086385
SEC(opens sec.gov)
Jun 64
Nicholson Donald William0001415889-25-015962
SEC(opens sec.gov)
Jun 144
Nicholson Donald William0000950170-24-073669
SEC(opens sec.gov)
Jun 104
Nicholson Donald William0001415889-24-016180
SEC(opens sec.gov)
Dec 54
Nicholson Donald William0001415889-23-015856
SEC(opens sec.gov)
Jun 124
Nicholson Donald William0001415889-23-009608
SEC(opens sec.gov)
Jun 94
Nicholson Donald William0000899243-23-015270
SEC(opens sec.gov)
Jan 34
Nicholson Donald William0000899243-23-000320
SEC(opens sec.gov)
Jun 164
Nicholson Donald William0000899243-22-022796
SEC(opens sec.gov)
Jun 134
Nicholson Donald William0001415889-22-006478
SEC(opens sec.gov)
Mar 114
Nicholson Donald William0001415889-22-002899
SEC(opens sec.gov)

Companies

Address

C/O DISC MEDICINE, INC. 321 ARSENAL STREET, SUITE 101

WATERTOWN, MA, 02472