Tom Penny 4

4 · Equillium, Inc. · Filed May 29, 2026

AI-generated summary of this filing

Updated May 29, 2026

Equillium (EQ) Tom Penny Exercises Options, Sells 65,000 Shares

What Happened

Tom Penny, Principal Accounting Officer of Equillium (EQ), exercised stock options to acquire 65,000 shares (exercise cost $0.79/share; total $51,025) and promptly sold those 65,000 shares in the open market for aggregate proceeds of $191,750. The net proceeds before fees and taxes are roughly $140,725.

Key Details

Transaction date: May 28, 2026 (Form 4 filed May 29, 2026 — timely).
Exercise: 65,000 shares exercised at $0.79 per share (total $51,025).
Sale: 65,000 shares sold at a weighted average price shown as $2.95 (total $191,750); actual sale prices ranged $2.95–$2.99 per footnote.
Shares owned after the transaction: not specified in the provided filing excerpt.
Footnotes: Sales were made under a Rule 10b5-1 trading plan adopted Oct 10, 2025 (F1); weighted-average sale price with range disclosure (F2); option vesting schedule referenced — 25% at first anniversary then monthly over three years (F3).
No indication in the filing that this was a late report.

Context

This was an option exercise followed by an immediate sale (effectively a cashless exercise): the insider paid the exercise price to convert options into shares and then sold the shares under a pre-established 10b5-1 plan. Sales under 10b5-1 plans are typically pre-scheduled and do not, by themselves, indicate the insider's current view of the company.

Form 4

Period: 2026-05-28

Principal Accounting Officer

Transactions

Exercise/Conversion
Common Stock
2026-05-28$0.79/sh+65,000$51,025→ 65,000 total
Sale
Common Stock
[F1][F2]
2026-05-28$2.95/sh−65,000$191,750→ 0 total
Exercise/Conversion
Employee Stock Option (right to buy)
[F3]
2026-05-28−65,000→ 0 total
Exercise: $0.79Exp: 2029-01-30→ Common Stock (65,000 underlying)

Footnotes (3)

[F1]The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 10, 2025.
[F2]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.95 to $2.99, 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.
[F3]Twenty-five percent of the shares subject to the option vests on the first anniversary of the vesting commencement date, and the remainder vests in 36 equal monthly installments thereafter for the following three years.

Signature

/s/ Penny Tom|2026-05-29

1 file