SEC Form 4 reporting owner

Reyno Leonard

Reyno Leonard has filed 6 Form 4 transactions reported between January 16, 2026 and July 10, 2026, as Chief Medical Officer of C4 Therapeutics, Inc..

Name as filed: REYNO LEONARD

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$22K

1 lines

Companies

with Form 4 filings

Latest transaction

Jul 10, 2026

transaction date

Roles and reported holdings

CCCCC4 Therapeutics, Inc.
Jan 16, 2026 – Jul 10, 2026
Chief Medical Officer
Held directly372,406 sh as of Jul 10, 2026 · Form 4
24 months: $22K sold

Transaction history

All 6 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Jul 10, 2026	CCCCChief Medical Officer	Shares withheld for tax or exercise priceCode F · direct	7,397	$4.06	$30K@ $4.06	372,406	Form 4
Jul 10, 2026	CCCCChief Medical Officer	Option exerciseCode M · direct	15,325	—	—	379,803	Form 4
Feb 14, 2026	CCCCChief Medical Officer	Shares withheld for tax or exercise priceCode F · direct	16,579	$1.89	$31K@ $1.89	379,803	Form 4
Feb 14, 2026	CCCCChief Medical Officer	Option exerciseCode M · direct	30,950	—	—	396,382	Form 4
Feb 13, 2026	CCCCChief Medical Officer	Grant or awardCode A · direct	240,000	—	—	396,382	Form 4
Jan 16, 2026	CCCCChief Medical Officer	Open-market saleCode S · direct	10,000	$2.22	$22K@ $2.22	156,382	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.