Lexicon Pharmaceuticals (LXRX) director converts 89,312 RSUs into common stock holdings

Rhea-AI Filing Summary

LEXICON PHARMACEUTICALS, INC. director Judith L. Swain exercised restricted stock units into common shares. She acquired 89,312 shares of common stock at a stated price of $0.00 per share through the conversion of restricted stock units. Following this transaction, she directly holds 174,486 common shares. The restricted stock units represented a contingent right to receive one common share per unit and vested in full on the first anniversary of the grant date.

Insider Trade Summary

89,312 shares exercised/converted

Mixed 2 txns

Insider Swain Judith L

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 — 174,486 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

Shares acquired via RSU exercise: 89,312 shares Shares held after transaction: 174,486 shares RSUs exercised: 89,312 units +1 more

4 metrics

Shares acquired via RSU exercise 89,312 shares Common stock from restricted stock units on 2026-06-03

Shares held after transaction 174,486 shares Total direct common stock holdings after exercise

RSUs exercised 89,312 units Restricted stock units converted into common stock

Exercise price per share $0.00/share Stated transaction price for RSU conversion

Key Terms

Restricted Stock Units, Exercise or conversion of derivative security, contingent right

3 terms

Restricted Stock Units financial

"The security title for the derivative transaction is listed as Restricted Stock Units."

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.

Exercise or conversion of derivative security financial

"The transaction code description states Exercise or conversion of derivative security."

contingent right financial

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

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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^*

Swain Judith L

(Last) (First) (Middle)

2445 TECHNOLOGY FOREST BLVD.

11TH FLOOR

(Street)

THE WOODLANDS 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	174,486	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/ Judith L. Swain	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 Judith L. Swain?

Lexicon Pharmaceuticals reported that director Judith L. Swain exercised restricted stock units into 89,312 shares of common stock. This was a derivative exercise, converting previously granted RSUs into common shares, rather than an open-market purchase or sale of stock.

How many Lexicon Pharmaceuticals (LXRX) shares does Judith L. Swain hold after this Form 4?

After the RSU conversion, Judith L. Swain directly holds 174,486 shares of Lexicon Pharmaceuticals common stock. This total includes the 89,312 shares acquired through exercising restricted stock units reported in this Form 4 filing with the SEC.

Were any Lexicon Pharmaceuticals (LXRX) shares sold in Judith L. Swain’s recent Form 4 filing?

No shares were sold in this Form 4 filing. Judith L. Swain acquired 89,312 common shares by exercising restricted stock units, and the transaction did not include any open-market sales or dispositions of Lexicon Pharmaceuticals stock.

What do the restricted stock units (RSUs) in the Lexicon Pharmaceuticals (LXRX) Form 4 represent?

Each restricted stock unit represents a contingent right to receive one share of Lexicon Pharmaceuticals common stock. In this filing, 89,312 RSUs vested and were converted into an equal number of common shares, reflecting equity-based compensation for the reporting person.

Did Judith L. Swain retain any restricted stock units (RSUs) in Lexicon Pharmaceuticals (LXRX) after the transaction?

She did not retain any of the reported RSUs after the transaction. The 89,312 restricted stock units were fully exercised and converted into common shares, leaving a reported remaining RSU balance of zero in this Form 4 filing.