[144] Lantheus Holdings, Inc SEC Filing

Rhea-AI Filing Summary

Form 144 filed for Lantheus Holdings, Inc (LNTH) discloses an intended sale of 3,060 common shares through Fidelity Brokerage with an aggregate market value of $163,924.20. The filing lists the approximate sale date as 08/13/2025 and identifies the securities exchange as NASDAQ. The shares to be sold were acquired through company programs: 221 shares via an ESPP purchase on 03/13/2023 (paid in cash) and 2,839 shares from restricted stock vesting on 03/02/2024, 03/03/2024, and 04/17/2024 as compensation.

The filing also reports a prior sale by Paul Blanchfield of 6,599 common shares on 06/05/2025 for gross proceeds of $525,610.35. Certain filer identification fields appear blank in the provided content. The document includes the standard seller representation that they have no undisclosed material adverse information.

Positive

• Acquisition sources disclosed: Shares being sold were acquired via ESPP and restricted stock vesting, which are standard compensation channels.
• Full transaction details provided: Number of shares, acquisition dates, payment nature, broker, and planned sale date are all listed.

Negative

• Recent prior sale disclosed: Paul Blanchfield sold 6,599 shares on 06/05/2025 for $525,610.35.
• Filer identification incomplete: The provided extract shows empty filer identifier fields (CIK/CCC not populated).

Insights

Securities Analyst

TL;DR: Routine insider sale notice showing 3,060 shares from compensation sources; prior June sale of 6,599 shares.

The filing documents an intended sale under Rule 144 of 3,060 common shares valued at $163,924.20, scheduled for 08/13/2025 on NASDAQ via Fidelity. The shares were acquired through an ESPP and restricted stock vesting between 03/13/2023 and 04/17/2024, indicating these holdings originated from compensation rather than open-market purchases. The filing also discloses a recent sale of 6,599 shares on 06/05/2025 for $525,610.35, which is material for tracking insider liquidity but is a routine disclosure without additional context in this document.

Corporate Governance Expert

TL;DR: Disclosure is procedural under Rule 144; acquisition dates and transaction types are clearly listed, but filer identifiers are incomplete.

The notice provides required acquisition details showing the 3,060 shares derive from an ESPP purchase and several restricted stock vesting events, with payment methods recorded as cash and compensation. This transparency supports compliance with Rule 144 requirements. However, the filing content supplied here has missing filer identification details (CIK/CCC not populated), limiting verifiability solely from this extract. The standard signature representation regarding absence of undisclosed material information is included.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	3060	163924.20	67994149	08/13/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	03/13/2023	ESPP Purchase	Issuer			221	03/13/2023	Cash
Common	03/02/2024	Restricted Stock Vesting	Issuer			1169	03/02/2024	Compensation
Common	03/03/2024	Restricted Stock Vesting	Issuer			1185	03/03/2024	Compensation
Common	04/17/2024	Restricted Stock Vesting	Issuer			485	04/17/2024	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Paul Blanchfield 201 Burlington Road South Building Bedford MA 01730	Common	06/05/2025	6599	525610.35

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the LNTH Form 144 disclose about planned insider sales?

The Form 144 shows a planned sale of 3,060 common shares valued at $163,924.20, to be sold via Fidelity on NASDAQ on 08/13/2025.

How were the shares that are being sold acquired according to the filing?

The filing lists acquisition sources as an ESPP purchase of 221 shares on 03/13/2023 (cash) and restricted stock vesting totaling 2,839 shares on 03/02/2024, 03/03/2024, and 04/17/2024 (compensation).

Did the filer recently sell any shares of LNTH?

Yes, the document reports that Paul Blanchfield sold 6,599 common shares on 06/05/2025 for gross proceeds of $525,610.35.

Which broker and exchange are involved in the planned sale?

The planned sale is through Fidelity Brokerage Services LLC and the securities are listed for sale on NASDAQ.

Does the filing include the seller's representation about material nonpublic information?

Yes, the filing includes the standard representation that the seller does not know any material adverse information about the issuer that has not been publicly disclosed.