Lexicon Pharmaceuticals (LXRX) director exercises 89,312 RSUs into shares

Rhea-AI Filing Summary

Lexicon Pharmaceuticals director Ivan Cheung exercised restricted stock units into common shares. On June 3, 2026, Cheung converted 89,312 restricted stock units into 89,312 shares of common stock at a price of $0.00 per share, a non-cash equity award event.

Following the transaction, Cheung directly holds 89,312 common shares and no restricted stock units remain from this grant. Each restricted stock unit represented a contingent right to receive one share of common stock, vesting in full on the first anniversary of the grant date.

Insider Trade Summary

89,312 shares exercised/converted

Mixed 2 txns

Insider Cheung Ivan

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	89,312	$0.00	--
Exercise	Common Stock	89,312	$0.00	--

Holdings After Transaction: Restricted Stock Units — 0 shares (Direct, null); Common Stock — 89,312 shares (Direct, null)

Footnotes (1)

1. Restricted stock unit vests with respect to 100% of the shares subject to the restricted stock unit on the first anniversary of the grant date. Each restricted stock unit represents a contingent right to receive one share of common stock.

Key Figures

RSUs exercised: 89,312 units Common shares received: 89,312 shares Shares held after transaction: 89,312 shares

3 metrics

RSUs exercised 89,312 units Restricted stock units converted on June 3, 2026

Common shares received 89,312 shares Shares of common stock issued from RSU conversion

Shares held after transaction 89,312 shares Direct ownership following the Form 4 transaction

Key Terms

Restricted Stock Units, derivative security, contingent right, vests

4 terms

Restricted Stock Units financial

"Restricted Stock Units, transaction code "M", represent derivative securities."

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.

derivative security financial

"Transaction code description: Exercise or conversion of derivative security."

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

contingent right financial

"Each restricted stock unit represents a contingent right to receive one share of common stock."

vests financial

"Restricted stock unit vests with respect to 100% of the shares on the first anniversary."

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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^*

Cheung Ivan

(Last) (First) (Middle)

2445 TECHNOLOGY FOREST BLVD

11TH FLOOR

(Street)

SPRING TEXAS 77381

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
LEXICON PHARMACEUTICALS, INC. [ LXRX ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/03/2026

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

X	Form 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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/03/2026		M		89,312	A	$0	89,312	D

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
Restricted Stock Units	$0	06/03/2026		M			89,312	(1)	(2)	Common Stock	89,312	$0	0	D

Explanation of Responses:

1. Restricted stock unit vests with respect to 100% of the shares subject to the restricted stock unit on the first anniversary of the grant date.

2. Each restricted stock unit represents a contingent right to receive one share of common stock.

	/s/ Ivan H. Cheung	06/04/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Lexicon Pharmaceuticals (LXRX) report for Ivan Cheung?

Lexicon Pharmaceuticals reported that director Ivan Cheung exercised 89,312 restricted stock units into 89,312 shares of common stock. The transaction was coded as a derivative exercise, with no open-market buy or sell component disclosed in this Form 4.

How many Lexicon Pharmaceuticals (LXRX) shares does Ivan Cheung hold after this Form 4?

After the reported transaction, Ivan Cheung directly holds 89,312 shares of Lexicon Pharmaceuticals common stock. These shares came from the conversion of 89,312 restricted stock units, and no units from this specific grant remain outstanding following the exercise.

Was the Lexicon Pharmaceuticals (LXRX) Form 4 a stock purchase or sale?

The Form 4 shows an exercise of restricted stock units, not an open-market purchase or sale. The code “M” indicates a derivative exercise, meaning RSUs converted into common shares at $0.00 per share as part of equity compensation.

What do Lexicon Pharmaceuticals (LXRX) restricted stock units represent in this filing?

The restricted stock units each represent a contingent right to receive one share of Lexicon common stock. According to the footnotes, the RSU grant vests 100% on the first anniversary of the grant date, then converts into actual shares upon vesting.

Does the Ivan Cheung Form 4 for Lexicon Pharmaceuticals (LXRX) indicate remaining derivative awards?

In this filing, the derivative position tied to the 89,312 restricted stock units has been fully exercised, leaving zero units from that grant. The derivative summary in the data is empty, indicating no remaining derivative securities disclosed in this specific Form 4.