TAN KEVIN (CFO & Treasurer) sold 19.8% of their position (26.84K shares) of SOLID BIOSCIENCES INC. on the open market

Open‑market sale worth $172.7K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

TAN KEVIN

Filed: 2/2/2026ACC: 0001193125-26-034089

InsiderTAN KEVINCIK 1884056

→

IssuerSOLID BIOSCIENCES INC.CIK 1707502

Officer· CFO & Treasurer

Since Feb 2026

+253.66K

Net shares

Net buyer

$172.7K

Total sold

Open market trades

0B · 1S

Total transactions

370.22K acquired · 116.56K disposed

Non-Derivative Transactions3

Common Stock

Direct

M · Option Exercise

+56.65K

Price / share

—

Trade value

—

% of position

122.9%

1/29/2026

46.10K→102.75K

Common Stock

Direct

M · Option Exercise

+33.08K

Price / share

—

Trade value

—

% of position

32.2%

1/31/2026

102.75K→135.82K

Common Stock

Direct

S · Sale

−26.84K

Price / share

$6.44

Trade value

$172.75K

% of position

19.8%

2/2/2026

135.82K→108.98K

Total

Net shares

+62.88K

Net value

-$172.75K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	1/29/2026	M · Option Exercise	+56.65K	—	—	122.9%	46.10K	102.75K
Common Stock Direct	1/31/2026	M · Option Exercise	+33.08K	—	—	32.2%	102.75K	135.82K
Common Stock Direct	2/2/2026	S · Sale	−26.84K	$6.44	$172.75K	19.8%	135.82K	108.98K
Total			+62.88K		-$172.75K

Derivative Transactions4

Performance Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

56.65K shares

−56.65K

Strike price

Held after

0.00

Exercisable

—

1/29/2026

Employee Stock Option (Right to Buy)

Direct

A · Award

Converts to

Common Stock

187K shares

+187K

Strike price

6.60

Held after

187K

Exercisable

—

1/29/2026

Restricted Stock Units

Direct

A · Award

Converts to

Common Stock

93.50K shares

+93.50K

Strike price

Held after

93.50K

Exercisable

—

1/29/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Stock

33.08K shares

−33.08K

Strike price

Held after

99.22K

Exercisable

—

1/31/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Performance Stock Units Direct	Common Stock56.65K shares	1/29/2026	M · Option Exercise	−56.65K		—	0.00
Employee Stock Option (Right to Buy) Direct	Common Stock187K shares	1/29/2026	A · Award	+187K	6.60	—	187K
Restricted Stock Units Direct	Common Stock93.50K shares	1/29/2026	A · Award	+93.50K		—	93.50K
Restricted Stock Units Direct	Common Stock33.08K shares	1/31/2026	M · Option Exercise	−33.08K		—	99.22K