NAGENDRAN SUKUMAR sold 16.6% of their position (200K shares) of TAYSHA GENE THERAPIES, INC. on the open market

Open‑market sale worth $942.0K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

NAGENDRAN SUKUMAR

Filed: 1/14/2026ACC: 0001665124-26-000002

InsiderNAGENDRAN SUKUMARCIK 1665124

→

IssuerTAYSHA GENE THERAPIES, INC.CIK 1806310

Director

Since Sep 2020

+501K

Net shares

Net buyer

$942.0K

Total sold

Open market trades

0B · 1S

Total transactions

901K acquired · 400K disposed

Non-Derivative Transactions4

Common Stock

Direct

M · Option Exercise

+111.32K

Price / share

$0.70

Trade value

$77.80K

% of position

11.1%

1/12/2026

1.01M→1.12M

Common Stock

Direct

M · Option Exercise

+88.68K

Price / share

$1.71

Trade value

$151.64K

% of position

7.9%

1/12/2026

1.12M→1.21M

Common Stock

Direct

S · Sale

−200K

Price / share

$4.71

Trade value

$942K

% of position

16.6%

1/12/2026

1.21M→1.01M

Common Stock

Direct

A · Award

+427K

Price / share

—

Trade value

—

% of position

42.4%

1/12/2026

1.01M→1.43M

Total

Net shares

+427K

Net value

-$712.56K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	1/12/2026	M · Option Exercise	+111.32K	$0.70	$77.80K	11.1%	1.01M	1.12M
Common Stock Direct	1/12/2026	M · Option Exercise	+88.68K	$1.71	$151.64K	7.9%	1.12M	1.21M
Common Stock Direct	1/12/2026	S · Sale	−200K	$4.71	$942K	16.6%	1.21M	1.01M
Common Stock Direct	1/12/2026	A · Award	+427K	—	—	42.4%	1.01M	1.43M
Total			+427K		-$712.56K

Derivative Transactions3

Employee Stock Option (right to buy)

Direct

M · Option Exercise

Converts to

Common Stock

111.32K shares

−111.32K

Strike price

0.6989

Held after

111.36K

Exercisable

—

1/12/2026

Employee Stock Option (right to buy)

Direct

M · Option Exercise

Converts to

Common Stock

88.68K shares

−88.68K

Strike price

1.71

Held after

474.94K

Exercisable

—

1/12/2026

Employee Stock Option (right to buy)

Direct

A · Award

Converts to

Common Stock

274K shares

+274K

Strike price

4.86

Held after

274K

Exercisable

—

1/12/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Employee Stock Option (right to buy) Direct	Common Stock111.32K shares	1/12/2026	M · Option Exercise	−111.32K	0.6989	—	111.36K
Employee Stock Option (right to buy) Direct	Common Stock88.68K shares	1/12/2026	M · Option Exercise	−88.68K	1.71	—	474.94K
Employee Stock Option (right to buy) Direct	Common Stock274K shares	1/12/2026	A · Award	+274K	4.86	—	274K