NICHTBERGER STEVEN

PrivateCIK: 1487989

Location

PHILADELPHIA, PA

NICHTBERGER STEVEN

Filed: 5/19/2025ACC: 0000950170-25-074826

InsiderNICHTBERGER STEVENCIK 1487989

→

IssuerCABALETTA BIO, INC.CIK 1759138

DirectorOfficer· President & CEO

Since Oct 2019

0.00

Net shares

Net seller

$0.00

Total acquired

0

Open market trades

0B · 0S

12

Total transactions

1.88M acquired · 1.88M disposed

Non-Derivative Transactions0

No non-derivative transactions reported

Derivative Transactions12

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

99.71K shares

Shares

−99.71K

Strike price

11

Held after

0.00

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

A · Award

Converts to

Common Stock

99.71K shares

Shares

+99.71K

Strike price

1.92

Held after

99.71K

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

300K shares

Shares

−300K

Strike price

14.94

Held after

0.00

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

A · Award

Converts to

Common Stock

300K shares

Shares

+300K

Strike price

1.92

Held after

300K

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

333.50K shares

Shares

−333.50K

Strike price

11.47

Held after

0.00

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

A · Award

Converts to

Common Stock

333.50K shares

Shares

+333.50K

Strike price

1.92

Held after

333.50K

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

380K shares

Shares

−380K

Strike price

3.21

Held after

0.00

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

A · Award

Converts to

Common Stock

380K shares

Shares

+380K

Strike price

1.92

Held after

380K

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

411.60K shares

Shares

−411.60K

Strike price

11.09

Held after

0.00

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

A · Award

Converts to

Common Stock

411.60K shares

Shares

+411.60K

Strike price

1.92

Held after

411.60K

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

353K shares

Shares

−353K

Strike price

23.97

Held after

0.00

Exercisable

—

5/19/2025

Stock Option (Right to Buy)

Direct

A · Award

Converts to

Common Stock

353K shares

Shares

+353K

Strike price

1.92

Held after

353K

Exercisable

—

5/19/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option (Right to Buy) Direct	Common Stock99.71K shares	5/19/2025	D · Disposition	−99.71K	11	—	0.00
Stock Option (Right to Buy) Direct	Common Stock99.71K shares	5/19/2025	A · Award	+99.71K	1.92	—	99.71K
Stock Option (Right to Buy) Direct	Common Stock300K shares	5/19/2025	D · Disposition	−300K	14.94	—	0.00
Stock Option (Right to Buy) Direct	Common Stock300K shares	5/19/2025	A · Award	+300K	1.92	—	300K
Stock Option (Right to Buy) Direct	Common Stock333.50K shares	5/19/2025	D · Disposition	−333.50K	11.47	—	0.00
Stock Option (Right to Buy) Direct	Common Stock333.50K shares	5/19/2025	A · Award	+333.50K	1.92	—	333.50K
Stock Option (Right to Buy) Direct	Common Stock380K shares	5/19/2025	D · Disposition	−380K	3.21	—	0.00
Stock Option (Right to Buy) Direct	Common Stock380K shares	5/19/2025	A · Award	+380K	1.92	—	380K
Stock Option (Right to Buy) Direct	Common Stock411.60K shares	5/19/2025	D · Disposition	−411.60K	11.09	—	0.00
Stock Option (Right to Buy) Direct	Common Stock411.60K shares	5/19/2025	A · Award	+411.60K	1.92	—	411.60K
Stock Option (Right to Buy) Direct	Common Stock353K shares	5/19/2025	D · Disposition	−353K	23.97	—	0.00
Stock Option (Right to Buy) Direct	Common Stock353K shares	5/19/2025	A · Award	+353K	1.92	—	353K

NICHTBERGER STEVEN — Insider Transaction (Form 4) Filed May 19, 2025 | Finecho