LESCHLY NICK

PrivateCIK: 1578408
Location

CAMBRIDGE, MA

LESCHLY NICK (President and CEO) reported 4 transactions at 2SEVENTY BIO, INC.

Review the transaction codes below to understand the nature of each event.

InsiderLESCHLY NICKCIK 1578408
Issuer2SEVENTY BIO, INC.CIK 1860782
DirectorOfficer· President and CEO
Since Oct 2021
-1.76M
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
5
Total transactions
1.76M disposed
Non-Derivative Transactions4

Common Stock

Direct
D · Disposition

Shares

335.96K

Price / share

Trade value

% of position

27.2%
5/13/2025
1.23M897.64K

Common Stock

Direct
U · U

Shares

897.64K

Price / share

Trade value

% of position

New position
5/13/2025
897.64K0.00

Common Stock

Indirect
U · U

Shares

15.23K

Price / share

Trade value

% of position

New position
5/13/2025
15.23K0.00

Common Stock

Indirect
U · U

Shares

41K

Price / share

Trade value

% of position

New position
5/13/2025
41K0.00
Total

Net shares

1.29M

Net value

$0.00

Derivative Transactions1

Stock Options (Right to buy)

Direct
D · Disposition
Converts to

Common Stock

469K shares

Shares

469K

Strike price

3.97

Held after

0.00

Exercisable

5/13/2025
LESCHLY NICK — Insider Transaction (Form 4) Filed May 15, 2025 | Finecho