Lantheus (LNTH) director granted 4,137 common shares

Rhea-AI Filing Summary

Ber Gerard reported acquisition or exercise transactions in this Form 4 filing.

Lantheus Holdings, Inc. director Gerard Ber received a grant of 4,137 shares of Common Stock on May 14, 2026. The shares were awarded at a price of $0.00 per share, indicating a compensation-related stock award rather than an open-market purchase. Following this grant, Ber directly holds 27,499 shares of Lantheus common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Ber Gerard

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	4,137	$0.00	--

Holdings After Transaction: Common Stock — 27,499 shares (Direct, null)

Footnotes (1)

Key Figures

Shares granted: 4,137 shares Grant price: $0.00 per share Shares held after: 27,499 shares +1 more

4 metrics

Shares granted 4,137 shares Common Stock grant on May 14, 2026

Grant price $0.00 per share Recorded transaction price for awarded shares

Shares held after 27,499 shares Director Gerard Ber direct ownership post-grant

Transaction code A Grant, award, or other acquisition of Common Stock

Key Terms

Grant, award, or other acquisition, Common Stock, Form 4, non-derivative

4 terms

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Common Stock financial

"security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

non-derivative financial

"transaction_type: non-derivative"

Form 4 Insider Transactions: What Each Field Means →

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).

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^*

Ber Gerard

(Last) (First) (Middle)

C/O LANTHEUS HOLDINGS, INC.

201 BURLINGTON ROAD, SOUTH BUILDING

(Street)

BEDFORD MASSACHUSETTS 01730

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Lantheus Holdings, Inc. [ LNTH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

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
Common Stock	05/14/2026		A		4,137	A	$0	27,499	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:

	/s/ Eric M. Green, attorney-in-fact	05/18/2026
	** 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)

FAQ

What insider transaction did Lantheus Holdings (LNTH) report for Gerard Ber?

Lantheus reported that director Gerard Ber received a grant of 4,137 shares of Common Stock on May 14, 2026. The award was recorded at $0.00 per share, reflecting a compensation-related stock grant rather than a market purchase or sale.

How many Lantheus (LNTH) shares were granted to director Gerard Ber?

Gerard Ber was granted 4,137 shares of Lantheus Common Stock. This transaction is coded as a grant, award, or other acquisition and increased his direct holdings, as disclosed in the Form 4 insider trading report filed with the SEC.

At what price were Gerard Ber’s new Lantheus (LNTH) shares recorded?

The 4,137 shares granted to Gerard Ber were recorded at $0.00 per share. This zero price indicates the shares were awarded as part of compensation, not purchased in the open market, consistent with the Form 4 transaction code for a grant or award.

What are Gerard Ber’s total Lantheus (LNTH) holdings after this Form 4 grant?

After receiving the 4,137-share grant, Gerard Ber directly holds 27,499 shares of Lantheus Common Stock. This post-transaction balance is reported in the Form 4 and reflects his updated direct ownership position following the compensation-related award.

Was Gerard Ber’s Lantheus (LNTH) transaction an open-market buy or a compensation grant?

The transaction was a compensation grant, not an open-market buy. It is coded as a grant, award, or other acquisition, with 4,137 shares received at $0.00 per share, indicating stock-based compensation instead of a purchase on the open market.