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  4. [Form 4] MapLight Therapeutics, Inc. Insider Trading Activity

CFO of MapLight Therapeutics (MPLT) sells 36,371 shares via 10b5-1 plan

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

MapLight Therapeutics, Inc. Chief Financial Officer Vishwas Setia reported open-market sales of a total of 36,371 shares of Voting Common Stock over May 4–6, 2026. The trades were executed at weighted average prices reported between about $26.84 and $30.55 per share under a pre-arranged Rule 10b5-1 trading plan adopted on December 29, 2025. Following these transactions, Setia directly owns 356,256 shares of MapLight Therapeutics common stock.

Positive

  • None.

Negative

  • None.
Insider Setia Vishwas
Role Chief Financial Officer
Sold 36,371 shs ($1.02M)
Type Security Shares Price Value
Sale Voting Common Stock 8,496 $28.04 $238K
Sale Voting Common Stock 2,068 $29.07 $60K
Sale Voting Common Stock 9,935 $28.12 $279K
Sale Voting Common Stock 968 $29.00 $28K
Sale Voting Common Stock 4,803 $27.36 $131K
Sale Voting Common Stock 8,989 $28.28 $254K
Sale Voting Common Stock 325 $29.56 $10K
Sale Voting Common Stock 787 $30.12 $24K
Holdings After Transaction: Voting Common Stock — 358,324 shares (Direct, null)
Footnotes (1)
  1. This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 29, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.84 to $27.835 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.845 to $28.74 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.9669 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.55 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.755 to $28.75 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.79 to $29.26 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.675 to $28.6587 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.73 to $29.35 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Shares sold 36,371 shares Total Voting Common Stock sold May 4–6, 2026
Post-sale holdings 356,256 shares Voting Common Stock held directly after latest sale
Reported sale price example $27.36 per share One weighted average sale price on May 4, 2026
Lowest price range point $26.84 Low end of disclosed sale range in a footnote
Highest price range point $30.55 High end of disclosed sale range in a footnote
Number of sale transactions 8 entries Non-derivative open-market sale lines reported
Rule 10b5-1 trading plan regulatory
"This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 29, 2025."
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
Voting Common Stock financial
"security_title: "Voting Common Stock""
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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).
X
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*
Setia Vishwas
(Last)(First)(Middle)
C/O MAPLIGHT THERAPEUTICS, INC.
800 CHESAPEAKE DRIVE
(Street)
REDWOOD CITY CALIFORNIA 94063
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
MapLight Therapeutics, Inc. [ MPLT ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/04/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Voting Common Stock05/04/2026S(1)4,803D$27.36(2)387,824D
Voting Common Stock05/04/2026S(1)8,989D$28.28(3)378,835D
Voting Common Stock05/04/2026S(1)325D$29.56(4)378,510D
Voting Common Stock05/04/2026S(1)787D$30.12(5)377,723D
Voting Common Stock05/05/2026S(1)9,935D$28.12(6)367,788D
Voting Common Stock05/05/2026S(1)968D$29(7)366,820D
Voting Common Stock05/06/2026S(1)8,496D$28.04(8)358,324D
Voting Common Stock05/06/2026S(1)2,068D$29.07(9)356,256D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 29, 2025.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.84 to $27.835 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.845 to $28.74 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $29.00 to $29.9669 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $30.00 to $30.55 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.755 to $28.75 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.79 to $29.26 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.675 to $28.6587 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
9. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.73 to $29.35 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
/s/ Kristopher L. Hanson, Attorney-in-Fact05/06/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did MapLight Therapeutics (MPLT) report for its CFO?

MapLight Therapeutics reported that CFO Vishwas Setia sold 36,371 shares of Voting Common Stock in open-market transactions. The sales occurred over May 4–6, 2026 and were executed under a pre-arranged Rule 10b5-1 trading plan.

How many MapLight (MPLT) shares did the CFO sell and at what prices?

The CFO sold 36,371 shares of MapLight Therapeutics Voting Common Stock. The filing reports weighted average sale prices, with trades occurring in ranges between approximately $26.84 and $30.55 per share across the different transaction buckets disclosed.

Does MapLight CFO Vishwas Setia still hold MPLT shares after these sales?

Yes. After completing the reported transactions, CFO Vishwas Setia directly holds 356,256 shares of MapLight Therapeutics Voting Common Stock. This post-transaction holding figure is shown in the Form 4 ownership column for the most recent reported sale.

Over what dates did the MapLight (MPLT) CFO’s Form 4 sales take place?

The reported insider sales by the MapLight Therapeutics CFO took place on May 4, 2026, May 5, 2026, and May 6, 2026. Multiple sale entries are listed for each of these dates, all involving Voting Common Stock.

Were the MapLight (MPLT) CFO’s stock sales under a Rule 10b5-1 plan?

Yes. A footnote states the transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 29, 2025. Such plans pre-schedule trades, helping separate them from day-to-day discretionary trading decisions.

What does weighted average price mean in the MapLight (MPLT) Form 4?

The Form 4 explains that each reported sale price is a weighted average price for multiple trades executed within a price range. It notes that detailed information on the number of shares sold at each specific price will be provided upon request.