Ownership

Nick Leschly

Insider Reports History

Entity: Individual
Location: C/O Bluebird Bio, Inc., 840 Memorial Drive, Cambridge, MA
Signature: /s/ Iya Kessler, Attorney-in-Fact
All insider transactions: Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Nick Leschly:

Stock	Role	Class	Num Shares	Value	Price $	Report Date	Ownership
2seventy bio, Inc.	Director	Common Stock	1.23M	$3.43M	$2.78	Jan 6, 2025	Direct
2seventy bio, Inc.	Director	Stock Option (Right to buy)	469K	$1.84M	$3.93	Jan 8, 2024	Direct
bluebird bio, Inc.	Director	Common Stock	316K	$166K	$0.53	Nov 6, 2024	Direct
2seventy bio, Inc.	Director	Common Stock	41K	$114K	$2.78	Jan 3, 2025	Nick Leschly Irrevocable GST Trust of 2019
bluebird bio, Inc.	Director	Common Stock	123K	$64.7K	$0.53	Nov 6, 2024	Nick Leschly Irrevocable GST Trust of 2019
2seventy bio, Inc.	Director	Common Stock	15.2K	$42.3K	$2.78	Jan 3, 2025	Nick Leschly 2001 Trust
bluebird bio, Inc.	Director	Common Stock	45.7K	$24K	$0.53	Nov 6, 2024	Nick Leschly 2001 Trust
bluebird bio, Inc.	Director	Stock Option (right to buy)	49.9K			Nov 6, 2024	Direct
SYNLOGIC, INC.	Director	Stock Option (right to buy)	30K			Jun 22, 2023	Direct

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Showing 1 to 9 of 9 entries

Insider Reports Filed by Nick Leschly

Symbol	Company	Period	Transactions	Value $	Form Type	Date Filed	Role
TSVT	2seventy bio, Inc.	Jan 3, 2025	2	-$255K	4	Jan 7, 2025	Director
BLUE	bluebird bio, Inc.	Nov 6, 2024	2	$0	4	Nov 8, 2024	Director
TSVT	2seventy bio, Inc.	Jan 5, 2024	3	-$5.83K	4	Jan 9, 2024	President and CEO, Director
TSVT	2seventy bio, Inc.	Jan 3, 2024	1	-$280K	4	Jan 5, 2024	President and CEO, Director
TSVT	2seventy bio, Inc.	Aug 22, 2023	1	-$51.1K	4	Aug 24, 2023	President and CEO, Director
TSVT	2seventy bio, Inc.	Aug 3, 2023	1	-$55.5K	4	Aug 7, 2023	President and CEO, Director
SYBX	SYNLOGIC, INC.	Jun 22, 2023	1	$0	4	Jun 26, 2023	Director
BLUE	bluebird bio, Inc.	Jun 16, 2023	2	$0	4	Jun 20, 2023	Director
TSVT	2seventy bio, Inc.	Feb 1, 2023	3	$0	4	Feb 3, 2023	President and CEO, Director
TSVT	2seventy bio, Inc.	Jan 12, 2023	1	-$68.9K	4	Jan 17, 2023	President and CEO, Director
TSVT	2seventy bio, Inc.	Jan 11, 2023	1	-$21.5K	4	Jan 18, 2023	President and CEO, Director
BLUE	bluebird bio, Inc.	Jan 11, 2023	1	-$33.5K	4	Jan 13, 2023	Director
TSVT	2seventy bio, Inc.	Jan 9, 2023	1	-$30.8K	4	Jan 11, 2023	President and CEO, Director
TSVT	2seventy bio, Inc.	Aug 5, 2022	1	-$89.3K	4	Aug 8, 2022	President and CEO, Director
TSVT	2seventy bio, Inc.	Jul 15, 2022	1	-$74.6K	4	Jul 19, 2022	President and CEO, Director
BLUE	bluebird bio, Inc.	Jun 22, 2022	2	$0	4	Jun 23, 2022	Director
SYBX	SYNLOGIC, INC.	Jun 9, 2022	1	$0	4	Jun 13, 2022	Director
TSVT	2seventy bio, Inc.	Mar 17, 2022	1	$4.5M	4/A	Mar 22, 2022	President and CEO, Director
TSVT	2seventy bio, Inc.	Mar 1, 2022	2	$0	4	May 5, 2022	President and CEO, Director
BLUE	bluebird bio, Inc.	Jan 10, 2022	2	-$71.1K	4	Jan 12, 2022	Director
TSVT	2seventy bio, Inc.	Jan 7, 2022	1	-$78.2K	4	Jan 11, 2022	President and CEO, Director
BLUE	bluebird bio, Inc.	Nov 11, 2021	15	$0	4	Nov 17, 2021	Director
TSVT	2seventy bio, Inc.	Nov 11, 2021	14	$0	4	Nov 16, 2021	President and CEO, Director
TSVT	2seventy bio, Inc.	Oct 18, 2021	0	$0	3	Oct 18, 2021	President and CEO, Director
BLUE	bluebird bio, Inc.	Aug 2, 2021	2	$0	4	Aug 4, 2021	President and CEO, Director
SYBX	SYNLOGIC, INC.	Jun 10, 2021	1	$0	4	Jun 14, 2021	Director
BLUE	bluebird bio, Inc.	May 12, 2021	2	$0	4	May 13, 2021	President and CEO, Director