STOCK TITAN

Alkermes exec sells 9,000 shares, exercises options

A Rule 10b5-1 trading plan adopted on 2025-03-14 covered the option exercise and 9,000-share sale reported in a Form 4.

(Very High)
(Negative)
Form Type
4

Rhea-AI Filing Summary

Alkermes plc (ALKS) reported insider activity by Craig C. Hopkinson, EVP R&D and Chief Medical Officer. On 2026-09-01, he exercised 5,000 Employee Stock Options at an exercise price of $24.59 per share to acquire 5,000 Ordinary Shares, and sold 9,000 Ordinary Shares at a weighted average price of $46.986 per share. The option exercise and sale were effected pursuant to a Rule 10b5-1 trading plan adopted on 2025-03-14. After the option exercise, he held 61,276 stock options of this grant, which are fully vested in accordance with their terms.

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Insights

Analyzing...

Insider Hopkinson Craig C.
Role EVP R&D, Chief Medical Officer
Sold 9,000 shs ($423K)
Approx. gross sale proceeds $423K
Approx. exercise cost $123K
Type Security Shares Price Value
Exercise Employee Stock Option (Right to Buy) F1, F4 5,000 $0.00 $0.00
Exercise Ordinary Shares F1 5,000 $24.59 $123K
Sale Ordinary Shares F2, F3 9,000 $46.986 $423K
Holdings After Transaction: Employee Stock Option (Right to Buy) — 61,276 contracts (Direct); Ordinary Shares — 65,389 shares (Direct)
Footnotes (4)
  1. F1. This option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 3/14/2025.
  2. F2. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 3/14/2025.
  3. F3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $46.8269 to $47.3197. 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. F4. These options are fully vested in accordance with their terms.
Options exercised 5,000 Employee Stock Options Exercised on 2026-09-01 into 5,000 Ordinary Shares
Option exercise price $24.59 per share Exercise price for 5,000 Employee Stock Options
Shares sold 9,000 Ordinary Shares Sale on 2026-09-01 in open market or private transactions
Weighted average sale price $46.986 per share Weighted average price for 9,000 shares sold; range $46.8269–$47.3197
Options held after transaction 61,276 Employee Stock Options Derivative securities beneficially owned following the option exercise
Option expiration date 2032-02-18 Expiration date of the Employee Stock Options exercised
Rule 10b5-1 plan adoption date 2025-03-14 Date the trading plan governing the exercise and sale was adopted
Rule 10b5-1 trading plan regulatory
"This option exercise was effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Employee Stock Option (Right to Buy) financial
"security_title: Employee Stock Option (Right to Buy)"
derivative security financial
"Exercise or conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

FAQ

What insider transactions did ALKS executive Craig C. Hopkinson report on this Form 4?

Craig C. Hopkinson reported exercising 5,000 stock options at an exercise price of $24.59 per share into 5,000 Ordinary Shares and selling 9,000 Ordinary Shares at a weighted average price of $46.986 per share on 2026-09-01.

Were Craig C. Hopkinson’s ALKS trades made under a Rule 10b5-1 plan?

Yes. Both the option exercise and the sale of Ordinary Shares were effected pursuant to a Rule 10b5-1 trading plan adopted on 2025-03-14, as disclosed in the footnotes.

How many Alkermes (ALKS) shares did Craig C. Hopkinson sell and at what price?

He sold 9,000 Ordinary Shares of Alkermes plc at a weighted average price of $46.986 per share, with individual sale prices ranging from $46.8269 to $47.3197.

What options did Craig C. Hopkinson exercise in this ALKS Form 4 filing?

He exercised 5,000 Employee Stock Options to buy Ordinary Shares at an exercise price of $24.59 per share. These options are reported as fully vested in accordance with their terms and have an expiration date of 2032-02-18.

How many Alkermes (ALKS) stock options does Craig C. Hopkinson hold after this transaction?

Following the reported option exercise, Craig C. Hopkinson holds 61,276 Employee Stock Options of this grant, as shown in the Form 4 data for derivative securities beneficially owned following the transaction.

What is the net effect of Craig C. Hopkinson’s September 1, 2026 ALKS transactions?

On 2026-09-01, he exercised 5,000 options to acquire 5,000 shares and sold 9,000 shares. The filing’s transaction summary shows net-sell activity of 9,000 shares, along with continued ownership of 61,276 stock options from this grant.

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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Hopkinson Craig C.

(Last)(First)(Middle)
900 WINTER STREET

(Street)
WALTHAM MASSACHUSETTS 02451

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Alkermes plc. [ ALKS ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP R&D, Chief Medical Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Ordinary Shares09/01/2026M(1)5,000A$24.5974,389D
Ordinary Shares09/01/2026S(2)9,000D$46.986(3)65,389D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (Right to Buy)$24.5909/01/2026M(1)5,000 (4)02/18/2032Ordinary Shares5,000$061,276D
Explanation of Responses:
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 $46.8269 to $47.3197. 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.
/s/ Shantale Greenson, attorney-in-fact for Craig C. Hopkinson09/01/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)