RA CAPITAL MANAGEMENT, L.P.

PrivateCIK: 1346824
Location

BOSTON, MA

RA CAPITAL MANAGEMENT, L.P. reported 2 transactions at 89BIO, INC.

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

InsiderRA CAPITAL MANAGEMENT, L.P.CIK 1346824
Issuer89BIO, INC.CIK 1785173
Director10% Owner
Since Nov 2019
-24.40M
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
10
Total transactions
24.40M disposed
Non-Derivative Transactions2

Common Stock

Indirect
D · Disposition

Shares

19.55M

Price / share

Trade value

% of position

New position
10/30/2025
19.55M0.00

Common Stock

Indirect
D · Disposition

Shares

335.36K

Price / share

Trade value

% of position

New position
10/30/2025
335.36K0.00
Total

Net shares

19.89M

Net value

$0.00

Derivative Transactions8

Pre-Funded Warrants (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

4.33M shares

Shares

4.33M

Strike price

0.001

Held after

0.00

Exercisable

10/30/2025

Stock Option (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

7K shares

Shares

7K

Strike price

21.40

Held after

0.00

Exercisable

10/30/2025

Stock Option (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

7K shares

Shares

7K

Strike price

24.29

Held after

0.00

Exercisable

10/30/2025

Stock Option (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

12.50K shares

Shares

12.50K

Strike price

24.16

Held after

0.00

Exercisable

10/30/2025

Stock Option (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

25K shares

Shares

25K

Strike price

2.64

Held after

0.00

Exercisable

10/30/2025

Stock Option (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

27.40K shares

Shares

27.40K

Strike price

14.70

Held after

0.00

Exercisable

10/30/2025

Stock Option (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

45.15K shares

Shares

45.15K

Strike price

9.98

Held after

0.00

Exercisable

10/30/2025

Stock Option (Right to Buy)

Indirect
D · Disposition
Converts to

Common Stock

56.40K shares

Shares

56.40K

Strike price

9.60

Held after

0.00

Exercisable

10/30/2025
RA CAPITAL MANAGEMENT, L.P. — Insider Transaction (Form 4) Filed Nov 3, 2025 | Finecho