MNPR (MNPR): Arthur Klausner files Form 144/A to sell 5,000 shares

Rhea-AI Filing Summary

MNPR received a Form 144/A filing indicating that Arthur Klausner may sell up to 5,000 shares of common stock through MLPFS at One Bryant Park, New York, with sales permissible on or after 07/08/2026 on NASDAQ. The shares relate to multiple restricted stock unit vestings granted as part of the issuer’s equity compensation plan between 09/30/2020 and 12/31/2023, each described as equity awards to Klausner.

Insights

Securities law analyst

Form 144/A discloses a planned sale of 5,000 MNPR shares from equity awards.

The filing shows Arthur Klausner planning potential sales of up to 5,000 shares of MNPR common stock through MLPFS, with sales allowed on or after 07/08/2026. Form 144 is a disclosure of potential sales by an affiliate, not a commitment that all shares will be sold.

The shares come from a series of restricted stock unit vesting events tied to the issuer’s equity compensation plan from 2020 through 2023. This pattern is consistent with monetizing equity compensation over time. The filing does not provide price terms or indicate any impact on company operations.

Key Figures

Shares registered for potential sale: 5,000 shares of common stock Earliest sale date: 07/08/2026 RSU vesting lot: 506 shares +2 more

5 metrics

Shares registered for potential sale 5,000 shares of common stock Common stock to be sold through MLPFS on NASDAQ on or after 07/08/2026

Earliest sale date 07/08/2026 Date from which the 5,000 shares may be sold on NASDAQ

RSU vesting lot 506 shares Restricted Stock Unit Vesting on 12/31/2023 for Arthur Klausner

RSU vesting lot 571 shares Restricted Stock Unit Vesting on 12/31/2022 for Arthur Klausner

RSU vesting lot 21 shares Restricted stock unit vesting on 09/30/2020 for Arthur Klausner

Key Terms

Form 144/A, Restricted Stock Unit Vesting, equity compensation plan

3 terms

Form 144/A regulatory

"144/A: Securities To Be Sold"

Restricted Stock Unit Vesting financial

"Common Stock | 12/31/2023 | Restricted Stock Unit Vesting | Arthur Klausner"

equity compensation plan financial

"Granted as part of issuer equity compensation plan."

A plan by which a company gives employees, directors or contractors ownership or the right to buy ownership in the company through stock, options or similar awards — think of promising slices of the company pie as part of someone's pay. It matters to investors because these awards can change the number of shares outstanding, affect reported profits and influence management’s decisions; large or generous plans can dilute existing holders and alter incentives over time.

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Available on EDGAR 07/10/2026 - 06:02 PM Accepted by SEC EDGAR 07/10/2026 - 06:01 PM Learn about SEC filing dates

FAQ

What does the MNPR Form 144/A filed by Arthur Klausner disclose?

It discloses that Arthur Klausner may sell up to 5,000 shares of MNPR common stock through MLPFS on NASDAQ on or after 07/08/2026, with the shares sourced from prior restricted stock unit vestings under the issuer’s equity compensation plan.

How many MNPR shares are covered by Arthur Klausner’s planned sale?

The filing covers up to 5,000 shares of MNPR common stock. These shares are tied to multiple restricted stock unit vesting events that occurred between 09/30/2020 and 12/31/2023, all granted under the issuer’s equity compensation plan.

When can the MNPR shares in this Form 144/A start being sold?

Sales may begin on or after 07/08/2026. The Form 144/A lists this as the date for potential sales of MNPR common stock on NASDAQ through MLPFS, but it does not require that all shares be sold then.

What is the source of the MNPR shares listed for sale by Arthur Klausner?

The shares come from a series of restricted stock unit vestings granted to Arthur Klausner as part of the issuer’s equity compensation plan, with individual vesting dates ranging from 09/30/2020 through 12/31/2023.

On which exchange and through which broker are the MNPR shares intended to be sold?

The Form 144/A states that the 5,000 shares of MNPR common stock may be sold on NASDAQ through MLPFS at One Bryant Park, 40th floor, New York, NY 10036, acting as the broker for the transaction.

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/A

144/A: Filer Information

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

144/A: 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/A: 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 Stock	MLPFS One Bryant Park 40th fl New York NY 10036	5000	476967	0	07/08/2026	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/A: 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 Stock	12/31/2023	Restricted Stock Unit Vesting	Arthur Klausner			506	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	09/30/2023	Restricted Stock Unit Vesting	Arthur Klausner			507	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	06/30/2023	Restricted Stock Unit Vesting	Arthur Klausner			507	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	03/31/2023	Restricted Stock Unit Vesting	Arthur Klausner			507	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	12/31/2022	Restricted Stock Unit Vesting	Arthur Klausner			571	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	09/30/2022	Restricted Stock unit vesting	Arthur Klausner			572	07/08/2026	Granted as part of issuer equity compensation plan.
Common Stock	06/30/2022	Restricted stock unit vesting	Arthur Klausner			572	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	03/31/2022	Restricted stock unit vesting	Arthur Klausner			572	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	03/31/2021	Restricted stock unit vesting	Arthur Klausner			150	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	06/30/2021	Restricted stock unit vesting	Arthur Klausner			150	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	09/30/2021	Restricted stock unit vesting	Arthur Klausner			150	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	12/31/2021	Restricted stock unit vesting	Arthur Klausner			151	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	09/30/2020	Restricted stock unit vesting	Arthur Klausner			21	07/08/2026	Granted as part of issuer equity compensation plan
Common Stock	12/31/2020	Restricted stock unit vesting	Arthur Klausner			64	07/08/2026	Granted as part of issuer equity compensation plan

* 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/A: Securities Sold During The Past 3 Months

Nothing to Report

144/A: Remarks and Signature

Remarks

Date of Notice

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)