Backstrom Jay T. [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
12/29/2022	Disc Medicine, Inc.		Grant	Stock Option (Right to Buy)	7k	$13.50	$94.5k	12/29/2022
09/20/2022	Scholar Rock Holding Corp	SRRK	Grant	Stock Option (right to buy)	1000k	$8.85	$8.8M	09/20/2022
11/19/2021	ACCELERON PHARMA INC	XLRN	Disposition	Option to Purchase Common Stock	20.9k	$115.53	$2.4M	11/19/2021
11/19/2021	ACCELERON PHARMA INC	XLRN	Disposition	Option to Purchase Common Stock	97k	$52.61	$5.1M	11/19/2021
11/19/2021	ACCELERON PHARMA INC	XLRN	Other	Common Stock	21.2k	$0.00	$0	11/19/2021
01/29/2021	ACCELERON PHARMA INC	XLRN	Grant	Option to Purchase Common Stock	20.9k	$115.53	$2.4M	01/29/2021
01/29/2021	ACCELERON PHARMA INC	XLRN	Grant	Common Stock	5.4k	$0.00	$0	01/29/2021
01/04/2021	ACCELERON PHARMA INC	XLRN	Payment of Exercise	Common Stock	1.7k	$124.31	$215.7k	01/04/2021
01/02/2020	ACCELERON PHARMA INC	XLRN	Grant	Option to Purchase Common Stock	97k	$52.61	$5.1M	01/02/2020
01/02/2020	ACCELERON PHARMA INC	XLRN	Grant	Option to Purchase Common Stock	94.9k	$52.61	$5M	01/02/2020
01/02/2020	ACCELERON PHARMA INC	XLRN	Grant	Common Stock	17.1k	$0.00	$0	01/02/2020