Crum Brian T 4

4 · LEXICON PHARMACEUTICALS, INC. · Filed Mar 3, 2026

AI-generated summary of this filing

Updated Mar 3, 2026

Lexicon (LXRX) SVP Brian Crum Receives RSUs — 273,006 Converted

What Happened

Brian T. Crum, SVP, General Counsel & Secretary of Lexicon Pharmaceuticals (LXRX), had restricted stock units (RSUs) convert/vest into 273,006 shares on February 28, 2026 (reported as derivative exercise/conversion, code M).
The company withheld 105,019 of those shares to satisfy tax withholding obligations (transaction coded F) at $1.47 per share, totaling approximately $154,378. After withholding, about 167,987 shares were delivered to Mr. Crum. The conversion entries show N/A for acquisition price because these were RSU conversions, not cash purchases.

Key Details

Transaction date: 2026-02-28; Form 4 filed 2026-03-03 (filed within the required two business days).
Shares converted (vested): 273,006 total (33,457; 69,386; 170,163 in separate line items).
Shares withheld for taxes: 105,019 at $1.47/share = ~$154,378. Net shares received: ~167,987.
Footnotes: F1 = each RSU = one share; F2 = company withheld shares to satisfy tax withholding; F3 = RSUs vest 1/3 on Feb 28 in each of three years following grant.
Shares owned after the transaction: not specified in the provided Form 4.

Context

This was a vesting/conversion of RSUs, not an open-market buy or sale. The withheld shares represent tax withholding (a common administrative step), not a market sale by the insider.
Transaction codes: M = exercise/conversion of a derivative (here, RSUs converting to common stock); F = payment/withholding to cover taxes.
For retail investors: RSU vesting is routine compensation-related activity and does not necessarily signal a personal buy/sell decision about the company's outlook.

Form 4

Period: 2026-02-28

SVP, General Counsel & Secr.

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-02-28+33,457→ 363,658 total
Exercise/Conversion
Common Stock
[F1]
2026-02-28+69,386→ 330,201 total
Exercise/Conversion
Common Stock
[F1]
2026-02-28+170,163→ 533,821 total
Tax Payment
Common Stock
[F2]
2026-02-28$1.47/sh−105,019$154,378→ 428,802 total
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-02-28−69,386→ 69,387 total
→ Common Stock (69,386 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-02-28−33,457→ 0 total
→ Common Stock (33,457 underlying)
Exercise/Conversion
Restricted Stock Units
[F1][F3]
2026-02-28−170,163→ 340,327 total
→ Common Stock (170,163 underlying)

Footnotes (3)

[F1]Each restricted stock unit represents a contingent right to receive one share of common stock.
[F2]Withholding of a portion of issued shares by the Company in satisfaction of shareholder's tax withholding obligations with respect thereto.
[F3]Restricted stock units vest with respect to 1/3 of the shares subject to the restricted stock units on February 28 of each of the three years following the year of grant.

Signature

/s/ Brian T. Crum|2026-03-03

1 file