STOCK TITAN

Acadia Pharmaceuticals (ACAD) EVP sells 16,558 shares after RSUs vest

(Moderate)
(Negative)
Form Type
4

Rhea-AI Filing Summary

ACADIA Pharmaceuticals executive Elizabeth H.Z. Thompson, EVP and Head of Research & Development, reported vesting and conversion of 32,272 restricted stock units into common stock on July 29, 2026. To cover withholding taxes on this vesting, she sold 16,558 shares of common stock on July 30, 2026 at prices around $26.13–$26.17 per share in mandatory transactions intended to comply with Rule 10b5-1(c) requirements. The RSU award vests 50% on July 29, 2026 and 25% on each of July 29, 2027 and July 29, 2028.

Positive

  • None.

Negative

  • None.
Insider Thompson Elizabeth H.Z.
Role EVP, Head of Research & Dev
Sold 16,558 shs ($433K)
Approx. gross sale proceeds $433K
Type Security Shares Price Value
Sale Common Stock F2 16,508 $26.13 $431K
Sale Common Stock F2 50 $26.17 $1K
Exercise Restricted Stock Units F1, F3 32,272 $0.00 $0.00
Exercise Common Stock F1 32,272 -- --
Holdings After Transaction: Restricted Stock Units — 32,272 shares (Direct); Common Stock — 18,994 shares (Direct)
Footnotes (3)
  1. F1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
  2. F2. The mandatory sales reported in this Form 4 were made to cover withholding taxes and tax related items imposed by the Issuer in connection with the vesting of restricted stock units, and it is intended to comply with the requirements of Rule 10b5-1(c)(1)(i)(B) under the Exchange Act and be interpreted to meet the requirements of Rule 10b5-1(c).
  3. F3. 50% of the restricted stock units vested on July 29, 2026 and 25% vest on each of July 29, 2027 and July 29, 2028.
RSUs converted to common stock 32,272 shares Restricted stock units converted into common stock on July 29, 2026
Shares sold at $26.13 16,508 shares Common stock sold on July 30, 2026 at $26.13 per share to cover withholding taxes
Shares sold at $26.17 50 shares Additional common stock sold on July 30, 2026 at $26.17 per share
Total shares sold 16,558 shares Aggregate common shares sold in tax-related transactions on July 30, 2026
Initial RSU vesting portion 50% Portion of the restricted stock units that vested on July 29, 2026
Subsequent RSU vesting portions 25% each Remaining RSUs vest on July 29, 2027 and July 29, 2028
Restricted Stock Units financial
"Each restricted stock unit represents a contingent right to receive one share"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
withholding taxes financial
"mandatory sales reported were made to cover withholding taxes and tax related items"
Withholding taxes are amounts a payer or government takes out of payments — such as wages, interest, or dividends — before the recipient gets the money, functioning like a cashier keeping part of a bill to pay taxes on your behalf. For investors this matters because it reduces the cash they actually receive, affects net returns and yield calculations, and may require additional paperwork or treaty claims to recover or offset the withheld amount against final tax bills.
Rule 10b5-1(c)(1)(i)(B) regulatory
"intended to comply with the requirements of Rule 10b5-1(c)(1)(i)(B) under the Exchange Act"
contingent right financial
"Each restricted stock unit represents a contingent right to receive one share"

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates

FAQ

What insider stock transactions did ACAD executive Elizabeth H.Z. Thompson report?

Elizabeth H.Z. Thompson reported vesting and conversion of 32,272 restricted stock units into ACADIA common stock, followed by sales of 16,558 shares to cover withholding taxes related to that RSU vesting.

How many ACAD shares did Thompson sell and at what prices?

Thompson sold 16,508 shares at $26.13 per share and 50 shares at $26.17 per share on July 30, 2026, all in connection with tax withholding on vested restricted stock units.

What is the vesting schedule of Thompson’s ACADIA (ACAD) restricted stock units?

According to the disclosure, 50% of the restricted stock units vested on July 29, 2026, with 25% vesting on July 29, 2027 and the remaining 25% on July 29, 2028, each representing one share of common stock when vested.

How do the ACAD RSU sales relate to SEC Rule 10b5-1(c)?

The company notes the mandatory sales to cover RSU tax withholding are intended to comply with Rule 10b5-1(c)(1)(i)(B) under the Exchange Act and be interpreted to meet the requirements of Rule 10b5-1(c).
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).
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*
Thompson Elizabeth H.Z.

(Last)(First)(Middle)
C/O ACADIA PHARMACEUTICALS INC.
12830 EL CAMINO REAL, SUITE 400

(Street)
SAN DIEGO CALIFORNIA 92130

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
ACADIA PHARMACEUTICALS INC [ ACAD ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP, Head of Research & Dev
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/29/2026
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
Common Stock07/29/2026M32,272A(1)35,552D
Common Stock07/30/2026S(2)16,508D$26.1319,044D
Common Stock07/30/2026S(2)50D$26.1718,994D
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
Restricted Stock Units(1)07/29/2026M32,272 (3) (3)Common Stock32,272$032,272D
Explanation of Responses:
1. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
2. The mandatory sales reported in this Form 4 were made to cover withholding taxes and tax related items imposed by the Issuer in connection with the vesting of restricted stock units, and it is intended to comply with the requirements of Rule 10b5-1(c)(1)(i)(B) under the Exchange Act and be interpreted to meet the requirements of Rule 10b5-1(c).
3. 50% of the restricted stock units vested on July 29, 2026 and 25% vest on each of July 29, 2027 and July 29, 2028.
/s/ Jennifer J. Rhodes, Attorney-in-Fact07/31/2026
** 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)