Alkermes plc.

ALKS

Form 4 • Statement of Changes in Beneficial Ownership

SEC Accession Number: 0001520262-26-000058
Filing date: Mar 4, 2026
Earliest execution date: Mar 2, 2026

Summary

Type

Sell

Net shares

-9,000

% of shares

-9.15%

Amount (USD)

$267,485

Insider confidence score

28.8 out of 100

Positive

  • Under Rule 10b5-1 trading plan

Negative

  • Very large scheduled sell (<10% of shares)
  • Large sell amount ($250K+)

Stock transactions

Transaction 1

Security

Ordinary Shares

Action

Exercise

Date

2026-03-02

Code

M

Net shares

+5,000.0

Price per Share

$19.34

Amount (USD)

$96,700.00

Acquired/Disposed

Acquired

Shares Owned Before

93,389.0

Shares Owned After

98,389.0

Transaction 2

Security

Ordinary Shares

Action

Sell

Date

2026-03-02

Code

S

Net shares

-9,000.0

Price per Share

$29.72

Amount (USD)

$267,485.40

Acquired/Disposed

Disposed

Shares Owned Before

98,389.0

Shares Owned After

89,389.0

Derivative Transactions

Transaction 1

Security

Employee Stock Option (Right to Buy)

Action

Exercise

Date

2026-03-02

Code

M

Net shares

-5,000.0

Acquired/Disposed

Disposed

Shares Owned Before

26,356.0

Shares Owned After

21,356.0

Transaction 2

Security

Employee Stock Option (Right to Buy)

Action

Grant

Date

2026-03-02

Code

A

Net shares

+83,037.0

Acquired/Disposed

Acquired

Shares Owned Before

0.0

Shares Owned After

83,037.0

Transaction 3

Security

Restricted Stock Unit Award

Action

Grant

Date

2026-03-02

Code

A

Net shares

+38,568.0

Acquired/Disposed

Acquired

Shares Owned Before

0.0

Shares Owned After

38,568.0

Filing's footnotes

1. This option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 3/14/2025.

2. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 3/14/2025.

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $29.29 to $30.13. Full information regarding the number of shares sold at each separate price can be provided to the issuer, any security holder of the issuer or the SEC staff upon request.

4. These options are fully vested in accordance with their terms.

5. Shares underlying the stock option vest and become exercisable in four equal annual installments, commencing on 3/2/2027.

6. Each restricted stock unit represents a contingent right to receive one ordinary share.

7. Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 3/2/2027.

ℹ️ Filed under Rule 10b5-1 trading plan

This page is for informational purposes only. While we strive for accuracy, the summary may contain inaccuracies or omissions. Please refer to the official SEC filing for authoritative information. Open the SEC filing.