TSVT

2seventy bio, Inc.

Insider trading activity for 2seventy bio, Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Transaction history

The 38 most recent Form 4 transactions.

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Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
May 13, 2025	Glickman Sarah JS	Director	DTOISS◆	24,100	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Glickman Sarah JS	Director	UTENDR	15,602	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Glickman Sarah JS	Director	DTOISS	12,050	—	—	-43.6%	Open the original filing on SEC.gov
May 13, 2025	Leschly Nick	Director	DTOISS◆	469,000	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Leschly Nick	Director	UTENDR	41,000	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Leschly Nick	Director	UTENDR	15,233	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Leschly Nick	Director	UTENDR	897,642	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Leschly Nick	Director	DTOISS	335,964	—	—	-27.2%	Open the original filing on SEC.gov
May 13, 2025	Eatwell Victoria	Chief Financial Officer	DTOISS◆	72,000	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Eatwell Victoria	Chief Financial Officer	DTOISS◆	18,300	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Eatwell Victoria	Chief Financial Officer	DTOISS◆	21,700	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Eatwell Victoria	Chief Financial Officer	UTENDR	43,276	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Eatwell Victoria	Chief Financial Officer	DTOISS	401,111	—	—	-90.3%	Open the original filing on SEC.gov
May 13, 2025	Snow Jessica	Chief Operating Officer	DTOISS◆	70,750	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Snow Jessica	Chief Operating Officer	DTOISS◆	18,300	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Snow Jessica	Chief Operating Officer	UTENDR	11,064	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Snow Jessica	Chief Operating Officer	DTOISS	247,230	—	—	-95.7%	Open the original filing on SEC.gov
May 13, 2025	Wei Lin	Director	DTOISS◆	24,100	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Wei Lin	Director	UTENDR	15,267	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Wei Lin	Director	DTOISS	17,583	—	—	-53.5%	Open the original filing on SEC.gov
May 13, 2025	Maus Marcela V.	Director	DTOISS◆	24,100	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Maus Marcela V.	Director	UTENDR	11,702	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Maus Marcela V.	Director	DTOISS	12,050	—	—	-50.7%	Open the original filing on SEC.gov
May 13, 2025	Newton Charles W.	Director	DTOISS◆	12,050	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Newton Charles W.	Director	DTOISS◆	33,400	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Newton Charles W.	Director	UTENDR	5,533	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Newton Charles W.	Director	DTOISS	17,092	—	—	-75.5%	Open the original filing on SEC.gov
May 13, 2025	Torres Denice	Director	DTOISS◆	24,100	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Torres Denice	Director	UTENDR	19,510	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Torres Denice	Director	DTOISS	12,050	—	—	-38.2%	Open the original filing on SEC.gov
May 13, 2025	Baird William D III	President and CEO	DTOISS◆	176,000	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Baird William D III	President and CEO	DTOISS◆	182,000	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Baird William D III	President and CEO	UTENDR	118,209	—	—	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Baird William D III	President and CEO	DTOISS	1M	—	—	-89.5%	Open the original filing on SEC.gov
May 13, 2025	Casdin Capital, LLC	Director	DTOISS◆	33,400	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Casdin Capital, LLC	Director	DTOISS◆	12,050	—	—	—	Open the original filing on SEC.gov
May 13, 2025	Casdin Capital, LLC	Director	UTENDR	2M	$5.00	$10M	-100.0%	Open the original filing on SEC.gov
May 13, 2025	Casdin Capital, LLC	Director	UTENDR	22,625	$5.00	$113.1K	-100.0%	Open the original filing on SEC.gov

DTOISS◆—

Glickman Sarah JS · DirectorMay 13, 2025

24,100 sh

UTENDR—

Glickman Sarah JS · DirectorMay 13, 2025

15,602 sh · -100.0% own

DTOISS—

Glickman Sarah JS · DirectorMay 13, 2025

12,050 sh · -43.6% own

DTOISS◆—

Leschly Nick · DirectorMay 13, 2025

469,000 sh

UTENDR—

Leschly Nick · DirectorMay 13, 2025

41,000 sh · -100.0% own

UTENDR—

Leschly Nick · DirectorMay 13, 2025

15,233 sh · -100.0% own

UTENDR—

Leschly Nick · DirectorMay 13, 2025

897,642 sh · -100.0% own

DTOISS—

Leschly Nick · DirectorMay 13, 2025

335,964 sh · -27.2% own

DTOISS◆—

Eatwell Victoria · Chief Financial…May 13, 2025

72,000 sh

DTOISS◆—

Eatwell Victoria · Chief Financial…May 13, 2025

18,300 sh

DTOISS◆—

Eatwell Victoria · Chief Financial…May 13, 2025

21,700 sh

UTENDR—

Eatwell Victoria · Chief Financial…May 13, 2025

43,276 sh · -100.0% own

DTOISS—

Eatwell Victoria · Chief Financial…May 13, 2025

401,111 sh · -90.3% own

DTOISS◆—

Snow Jessica · Chief Operating…May 13, 2025

70,750 sh

DTOISS◆—

Snow Jessica · Chief Operating…May 13, 2025

18,300 sh

UTENDR—

Snow Jessica · Chief Operating…May 13, 2025

11,064 sh · -100.0% own

DTOISS—

Snow Jessica · Chief Operating…May 13, 2025

247,230 sh · -95.7% own

DTOISS◆—

Wei Lin · DirectorMay 13, 2025

24,100 sh

UTENDR—

Wei Lin · DirectorMay 13, 2025

15,267 sh · -100.0% own

DTOISS—

Wei Lin · DirectorMay 13, 2025

17,583 sh · -53.5% own

DTOISS◆—

Maus Marcela V. · DirectorMay 13, 2025

24,100 sh

UTENDR—

Maus Marcela V. · DirectorMay 13, 2025

11,702 sh · -100.0% own

DTOISS—

Maus Marcela V. · DirectorMay 13, 2025

12,050 sh · -50.7% own

DTOISS◆—

Newton Charles W. · DirectorMay 13, 2025

12,050 sh

DTOISS◆—

Newton Charles W. · DirectorMay 13, 2025

33,400 sh

UTENDR—

Newton Charles W. · DirectorMay 13, 2025

5,533 sh · -100.0% own

DTOISS—

Newton Charles W. · DirectorMay 13, 2025

17,092 sh · -75.5% own

DTOISS◆—

Torres Denice · DirectorMay 13, 2025

24,100 sh

UTENDR—

Torres Denice · DirectorMay 13, 2025

19,510 sh · -100.0% own

DTOISS—

Torres Denice · DirectorMay 13, 2025

12,050 sh · -38.2% own

DTOISS◆—

Baird William D III · President and CEOMay 13, 2025

176,000 sh

DTOISS◆—

Baird William D III · President and CEOMay 13, 2025

182,000 sh

UTENDR—

Baird William D III · President and CEOMay 13, 2025

118,209 sh · -100.0% own

DTOISS—

Baird William D III · President and CEOMay 13, 2025

1M sh · -89.5% own

DTOISS◆—

Casdin Capital, LLC · DirectorMay 13, 2025

33,400 sh

DTOISS◆—

Casdin Capital, LLC · DirectorMay 13, 2025

12,050 sh

UTENDR$10M

Casdin Capital, LLC · DirectorMay 13, 2025

2M sh @ $5.00 · -100.0% own

UTENDR$113.1K

Casdin Capital, LLC · DirectorMay 13, 2025

22,625 sh @ $5.00 · -100.0% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

All 10 filings we hold were filed within the two-business-day deadline.

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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