LEVIN ARTHUR A (Chief Scientific Officer) reported 2 transactions at AVIDITY BIOSCIENCES, INC.

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

LEVIN ARTHUR A

Filed: 2/27/2026ACC: 0001193125-26-082154

InsiderLEVIN ARTHUR ACIK 1181556

→

IssuerAVIDITY BIOSCIENCES, INC.CIK 1599901

Officer· Chief Scientific Officer

Since Jun 2020

-443.46K

Net shares

Net seller

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

443.46K disposed

Non-Derivative Transactions2

Common Stock

Direct

D · Disposition

−16.56K

Price / share

—

Trade value

—

% of position

New position

2/27/2026

16.56K→0.00

Common Stock

Indirect

D · Disposition

−131.37K

Price / share

—

Trade value

—

% of position

New position

2/27/2026

131.37K→0.00

Total

Net shares

−147.93K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	2/27/2026	D · Disposition	−16.56K	—	—	New position	16.56K	0.00
Common Stock Indirect	2/27/2026	D · Disposition	−131.37K	—	—	New position	131.37K	0.00
Total			−147.93K		$0.00

Derivative Transactions5

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

10.03K shares

−10.03K

Strike price

33.62

Held after

0.00

Exercisable

—

2/27/2026

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

13.49K shares

−13.49K

Strike price

39.96

Held after

0.00

Exercisable

—

2/27/2026

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

144K shares

−144K

Strike price

22.47

Held after

0.00

Exercisable

—

2/27/2026

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

115.50K shares

−115.50K

Strike price

14.22

Held after

0.00

Exercisable

—

2/27/2026

Stock Option (Right to Buy)

Direct

D · Disposition

Converts to

Common Stock

12.50K shares

−12.50K

Strike price

22.34

Held after

0.00

Exercisable

—

2/27/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable
Stock Option (Right to Buy) Direct	Common Stock10.03K shares	2/27/2026	D · Disposition	−10.03K	33.62	—
Stock Option (Right to Buy) Direct	Common Stock13.49K shares	2/27/2026	D · Disposition	−13.49K	39.96	—
Stock Option (Right to Buy) Direct	Common Stock144K shares	2/27/2026	D · Disposition	−144K	22.47	—
Stock Option (Right to Buy) Direct	Common Stock115.50K shares	2/27/2026	D · Disposition	−115.50K	14.22	—
Stock Option (Right to Buy) Direct	Common Stock12.50K shares	2/27/2026	D · Disposition	−12.50K	22.34	—