MapLight (MPLT) director Malenka sells stock to cover RSU tax bill

Rhea-AI Filing Summary

MapLight Therapeutics director Robert C. Malenka reported small open-market sales of voting common stock mainly to cover taxes on vested restricted stock units. On February 2, 2026, he sold 7,039 shares at a weighted average price of $18.02, and on February 3, 2026, he sold 1 share at $18.00.

After these sales, he beneficially owns 358,233 shares directly and 31,672 shares indirectly through the Robert C. Malenka Living Trust, where he has voting and dispositive power. The remaining securities he holds are still subject to a 180-day IPO lock-up following the final prospectus dated October 26, 2025.

Insider Trade Summary

Net Seller: 7,040 shares ($126,861)

Net Sell 3 txns

Insider Malenka Robert C.

Role Director

Sold 7,040 shs ($127K)

Type	Security	Shares	Price	Value
Sale	Voting Common Stock	1	$18.00	$18.00
Sale	Voting Common Stock	7,039	$18.02	$127K
holding	Voting Common Stock	--	--	--

Holdings After Transaction: Voting Common Stock — 358,233 shares (Direct); Voting Common Stock — 31,672 shares (Indirect, See footnote)

Footnotes (1)

1. Represents sales of shares of common stock by the Reporting Person to cover tax obligations in connection with the settlement of restricted stock unit awards. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. The securities of the Issuer retained by the Reporting Person remain subject to the terms a lock-up agreement entered into with the underwriters for the Issuer's initial public offering, pursuant to which the Reporting Person agreed, subject to certain exceptions, not to directly or indirectly sell or otherwise transfer securities of the Issuer for a period of 180 days following the date of the final prospectus relating to the initial public offering, which was October 26, 2025. The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $18.00 to $18.14, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. The shares are held by the Robert C. Malenka Living Trust U/A DTD 08/21/2012, of which the Reporting Person is the sole trustee and has voting and dispositive power.

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^*

Malenka Robert C.

(Last) (First) (Middle)

C/O MAPLIGHT THERAPEUTICS, INC.

800 CHESAPEAKE DRIVE

(Street)

REDWOOD CITY CA 94063

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MapLight Therapeutics, Inc. [ MPLT ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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
Voting Common Stock	02/02/2026		S		7,039(1)	D	$18.02(2)	358,234	D
Voting Common Stock	02/03/2026		S		1(1)	D	$18	358,233	D
Voting Common Stock								31,672	I	See footnote(3)

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. Represents sales of shares of common stock by the Reporting Person to cover tax obligations in connection with the settlement of restricted stock unit awards. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. The securities of the Issuer retained by the Reporting Person remain subject to the terms a lock-up agreement entered into with the underwriters for the Issuer's initial public offering, pursuant to which the Reporting Person agreed, subject to certain exceptions, not to directly or indirectly sell or otherwise transfer securities of the Issuer for a period of 180 days following the date of the final prospectus relating to the initial public offering, which was October 26, 2025.

2. The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $18.00 to $18.14, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. The shares are held by the Robert C. Malenka Living Trust U/A DTD 08/21/2012, of which the Reporting Person is the sole trustee and has voting and dispositive power.

	/s/ Kristopher L. Hanson, Attorney-in-Fact	02/04/2026
	** 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.

FAQ

What insider transaction did MPLT director Robert C. Malenka report?

Malenka reported selling voting common stock of MapLight Therapeutics (MPLT) in early February 2026. The sales primarily covered tax obligations from vested restricted stock units, rather than representing a broad discretionary share sale program.

How many MPLT shares did Robert C. Malenka sell and at what prices?

He sold 7,039 shares on February 2, 2026 at a weighted average price of $18.02, and 1 share on February 3, 2026 at $18.00, as disclosed in the Form 4 filing.

Why were Robert C. Malenka’s MPLT shares sold according to the Form 4?

The filing states the sales were made to cover tax obligations arising from the settlement of restricted stock unit awards. Each restricted stock unit represents a contingent right to receive one share of MapLight Therapeutics common stock.

How many MPLT shares does Robert C. Malenka beneficially own after these transactions?

Following the reported sales, Malenka beneficially owns 358,233 MPLT shares directly and 31,672 shares indirectly through the Robert C. Malenka Living Trust, as shown in the beneficial ownership columns.

What is the role of the Robert C. Malenka Living Trust in MPLT share ownership?

The Form 4 explains that 31,672 shares are held by the Robert C. Malenka Living Trust. Malenka is the sole trustee and has voting and dispositive power over these shares, so they count as indirect beneficial ownership.

Are Robert C. Malenka’s remaining MPLT shares subject to an IPO lock-up?

Yes. The filing notes his retained securities remain subject to a 180-day lock-up agreement with the IPO underwriters, measured from the final IPO prospectus dated October 26, 2025, limiting sales for that period.