MPLT insider files Form 144 to sell 1 share

MPLT insider Robert Malenka has filed a Form 144 to sell 1 share of common stock through Morgan Stanley Smith Barney LLC on or about 02/03/2026 on the NASDAQ, with an aggregate market value of $18.00.

Rhea-AI Filing Summary

MPLT insider Robert Malenka has filed a Form 144 to sell 1 share of common stock through Morgan Stanley Smith Barney LLC on or about 02/03/2026 on the NASDAQ, with an aggregate market value of $18.00. The share relates to restricted stock that vested on 01/23/2026 under a registered plan, received as consideration for services rendered.

Over the prior three months, Robert Malenka sold additional MPLT common shares, including 7,039 shares for gross proceeds of $126,835.04 on 02/02/2026 and 21,262 shares for gross proceeds of $394,469.63 on 01/29/2026, as well as other smaller transactions.

FAQ

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

What does the MPLT Form 144 filing by Robert Malenka disclose?

The Form 144 filing discloses that Robert Malenka intends to sell 1 share of MPLT common stock for an aggregate market value of $18.00. The sale is to be executed through Morgan Stanley Smith Barney LLC on or about 02/03/2026 on the NASDAQ exchange.

How many MPLT shares is Robert Malenka currently planning to sell under this Form 144?

The filing shows a planned sale of 1 share of MPLT common stock with an aggregate market value of $18.00. This is a notice of proposed sale under Rule 144 rather than a report of a large new transaction or major ownership change.

What prior MPLT stock sales has Robert Malenka reported in the last three months?

The filing lists several recent MPLT sales by Robert Malenka, including 21,262 common shares on 01/29/2026 for gross proceeds of $394,469.63. Additional trades include 7,039 shares on 02/02/2026 and 6,612 shares on 01/30/2026 for six-figure gross proceeds.

How did Robert Malenka acquire the MPLT shares referenced in this Form 144?

The 1 MPLT common share to be sold was acquired on 01/23/2026 through restricted stock vesting under a registered plan. The filing notes that the consideration for the vested share was services rendered, rather than a cash purchase at the time of acquisition.

Which broker and exchange are involved in Robert Malenka’s planned MPLT share sale?

The planned sale will be handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located in New York. The Form 144 states that the MPLT common stock is expected to be sold on the NASDAQ exchange around 02/03/2026, subject to market conditions.

What does the Form 144 representation about material adverse information mean for MPLT?

By signing Form 144, the seller represents they do not know undisclosed material adverse information about MPLT’s current or prospective operations. This statement is a regulatory requirement under Rule 144 and relates to insider trading safeguards, not to any new operational developments.

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

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Accepted by SEC EDGAR 02/03/2026 - 04:15 PM Learn about SEC filing dates

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	0002021198
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	MAPLIGHT THERAPEUTICS, INC.
SEC File Number	001-42914
Address of Issuer	800 Chesapeake Drive Redwood City CALIFORNIA 94063
Phone	(617) 984-6300
Name of Person for Whose Account the Securities are To Be Sold	ROBERT MALENKA
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	Director

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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1	18.00	45373033	02/03/2026	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: 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	01/23/2026	Restricted stock vesting under a registered plan	Issuer			1	01/23/2026	Services Rendered

* 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
ROBERT MALENKA 800 Chesapeake Drive Redwood City CA 94063	Common	02/02/2026	7039	126835.04
ROBERT MALENKA 800 Chesapeake Drive Redwood City CA 94063	Common	01/30/2026	6612	119736.71
ROBERT MALENKA 800 Chesapeake Drive Redwood City CA 94063	Common	01/29/2026	21262	394469.63
ROBERT MALENKA 800 Chesapeake Drive Redwood City CA 94063	Common	01/28/2026	6524	121689.56

144: Remarks and Signature

Remarks
Date of Notice	02/03/2026
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	/s/ Robert Malenka
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)