SNYDERMAN NANCY LYNN MD exercised options at ALKERMES PLC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise

SNYDERMAN NANCY LYNN MD

Filed: 5/23/2026ACC: 0001520262-26-000091

InsiderSNYDERMAN NANCY LYNN MDCIK 1675198

→

IssuerALKERMES PLC.CIK 1520262

Director

Since May 2019

+15.47K

Net shares

Net buyer

$54.5K

Total sold

Open market trades

0B · 0S

Total transactions

23.09K acquired · 7.62K disposed

Non-Derivative Transactions2

Ordinary Shares

Direct

M · Option Exercise

+6.14K

Price / share

—

Trade value

—

% of position

57.3%

5/21/2026

10.73K→16.87K

Ordinary Shares

Direct

F · Tax Withholding

−1.48K

Price / share

$36.95

Trade value

$54.50K

% of position

8.7%

5/21/2026

16.87K→15.39K

Total

Net shares

+4.67K

Net value

-$54.50K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Ordinary Shares Direct	5/21/2026	M · Option Exercise	+6.14K	—	—	57.3%	10.73K	16.87K
Ordinary Shares Direct	5/21/2026	F · Tax Withholding	−1.48K	$36.95	$54.50K	8.7%	16.87K	15.39K
Total			+4.67K		-$54.50K

Derivative Transactions3

Non Qualified Stock Option (Right to Buy)

Direct

A · Award

Converts to

Ordinary Shares

11.54K shares

+11.54K

Strike price

36.98

Held after

11.54K

Exercisable

—

5/20/2026

Restricted Stock Unit Award

Direct

A · Award

Converts to

Ordinary Shares

5.41K shares

+5.41K

Strike price

Held after

5.41K

Exercisable

—

5/20/2026

Restricted Stock Unit Award

Direct

M · Option Exercise

Converts to

Ordinary Shares

6.14K shares

−6.14K

Strike price

Held after

0.00

Exercisable

—

5/21/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Non Qualified Stock Option (Right to Buy) Direct	Ordinary Shares11.54K shares	5/20/2026	A · Award	+11.54K	36.98	—	11.54K
Restricted Stock Unit Award Direct	Ordinary Shares5.41K shares	5/20/2026	A · Award	+5.41K		—	5.41K
Restricted Stock Unit Award Direct	Ordinary Shares6.14K shares	5/21/2026	M · Option Exercise	−6.14K		—	0.00

Non-Derivative Holdings (Post-Transaction)1

Ordinary Shares

Indirect

Shares owned20.78K

Total

20.78K indirect20.78K

Security Title	Shares Owned	Ownership Type
Ordinary Shares	20.78K	Indirect
Total	20.78K	20.78K indirect

Derivative Holdings (Post-Transaction)0

No derivative holdings reported