Alkermes CCO sells 7,576 shares around $49

Rhea-AI Filing Summary

Alkermes plc. SVP and Chief Commercial Officer Christian Todd Nichols reported open-market sales of Alkermes ordinary shares. On 2026-08-17, he sold 6,912 shares at a weighted average price of $49.1851 and 664 shares at a weighted average price of $49.6526, in transactions made under a Rule 10b5-1 trading plan. Each sale was executed through multiple trades within disclosed price ranges.

Insider Trade Summary 10b5-1

Net Seller: 7,576 shares

Net Sell 2 txns

Insider Nichols Christian Todd

Role SVP, Chief Commercial Officer

Sold 7,576 shs ($373K)

Type	Security	Shares	Price	Value
Sale	Ordinary Shares F1, F2	6,912	$49.1851	$340K
Sale	Ordinary Shares F1, F3	664	$49.6526	$33K

Holdings After Transaction: Ordinary Shares — 102,193 shares (Direct)

Footnotes (3)

1. F1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 5/15/2026.
2. F2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.6092 to $49.49. 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.
3. F3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $49.61 to $49.79. 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.

Key Figures

Shares sold (first transaction): 6,912 shares Weighted average price (first transaction): $49.1851 per share Shares sold (second transaction): 664 shares +3 more

6 metrics

Shares sold (first transaction) 6,912 shares Ordinary Shares sold on 2026-08-17 in an open-market or private transaction

Weighted average price (first transaction) $49.1851 per share Price for 6,912 Ordinary Shares sold on 2026-08-17; trades ranged $48.6092–$49.49

Shares sold (second transaction) 664 shares Ordinary Shares sold on 2026-08-17 in a separate open-market or private transaction

Weighted average price (second transaction) $49.6526 per share Price for 664 Ordinary Shares sold on 2026-08-17; trades ranged $49.61–$49.79

Total shares sold 7,576 shares Combined Ordinary Shares sold by Christian Todd Nichols on 2026-08-17

Rule 10b5-1 plan adoption date 05/15/2026 Date Christian Todd Nichols adopted the Rule 10b5-1 trading plan governing these sales

Key Terms

Rule 10b5-1 trading plan, weighted average price, Ordinary Shares

3 terms

Rule 10b5-1 trading plan regulatory

"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted"

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.

Ordinary Shares financial

"security_title: "Ordinary Shares" for both non-derivative transactions"

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did ALKS executive Christian Todd Nichols report on this Form 4?

Christian Todd Nichols reported two open-market sales of Alkermes ordinary shares on 2026-08-17, totaling 7,576 shares. The sales were executed at weighted average prices around $49 per share and conducted under a Rule 10b5-1 trading plan.

How many Alkermes (ALKS) shares did Christian Todd Nichols sell on 2026-08-17?

Christian Todd Nichols sold a total of 7,576 ordinary shares of Alkermes on 2026-08-17. This consisted of one sale of 6,912 shares and a second sale of 664 shares, both reported as open-market or private transactions.

At what prices were the ALKS shares sold by Christian Todd Nichols?

The reported prices are weighted averages of $49.1851 and $49.6526 per share. Footnotes state the 6,912-share sale involved trades from $48.6092–$49.49, and the 664-share sale involved trades from $49.61–$49.79, with full breakdowns available upon request.

Were Christian Todd Nichols’s ALKS share sales made under a Rule 10b5-1 plan?

Yes. The filing states the sales were effected pursuant to a Rule 10b5-1 trading plan. The plan was adopted by Christian Todd Nichols on 05/15/2026, indicating the transactions followed a pre-arranged trading schedule rather than discretionary timing.

Does the Form 4 disclose Christian Todd Nichols’s Alkermes (ALKS) holdings after these sales?

The reported transactions list no specific total shares held following the sales. The fields for total shares following each transaction are left blank, so the filing does not quantify Christian Todd Nichols’s remaining Alkermes ordinary share holdings in this report.

What type of security did Christian Todd Nichols trade in Alkermes (ALKS)?

Christian Todd Nichols traded Ordinary Shares of Alkermes plc. Both reported transactions involve non-derivative securities, meaning they relate directly to the company’s ordinary equity rather than options, warrants, or other derivative instruments.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/17/2026 - 06:54 PM Accepted by SEC EDGAR 08/17/2026 - 06:53 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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^*

Nichols Christian Todd

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Commercial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/17/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	08/17/2026		S(1)		6,912	D	$49.1851(2)	102,857	D
Ordinary Shares	08/17/2026		S(1)		664	D	$49.6526(3)	102,193	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 5/15/2026.

2. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $48.6092 to $49.49. 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.

3. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $49.61 to $49.79. 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.

	/s/ Shantale Greenson, attorney-in-fact for Christian Todd Nichols	08/17/2026
	** Signature of Reporting Person	Date
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)