C4 Therapeutics, Inc. (CCCC)
$3.91-$0.19 (-4.65%) Today
Donna Roy Grogan - Director
Utpal Koppikar - DirectorC4 Therapeutics Inc is a clinical-stage biopharmaceutical company dedicated to delivering on the promise of targeted protein degradation science to create a new generation of medicines that transforms patient's lives. The Company is progressing targeted oncology programs through clinical studies and leveraging its TORPEDO platform to efficiently design and optimize small-molecule medicines to address difficult-to-treat diseases. The degrader medicines of the company are designed to harness the body's natural protein recycling system to rapidly degrade disease-causing proteins, offering the potential to overcome drug resistance, and drug undruggable targets and improve patient outcomes. Its pipeline is Cemsidomide, CFT8919, and other discovery products.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Grant or award | 10 | 501,991 | |
| Option exercise | 3 | 17,465 | |
| Tax withholding / forfeiture | 1 | 7,397 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
38 Form 4 filings on record, the earliest from Oct 2, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Leonard Reyno - Officer | Option exercise | Common Stock | 15,325 | $0.00 | - | |
| Leonard Reyno - Officer | Tax withholding / forfeiture | Common Stock | 7,397 | $4.06 | $30K | |
| Kenneth Carl Anderson - Director | Grant or award | Common Stock | 2,650 | $4.34 | $12K | |
| Donna Roy Grogan - Director | Grant or award | Common Stock | 3,341 | $4.34 | $14K | |
| Owen Hughes - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Steven L. Hoerter - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Utpal Koppikar - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Kenneth Carl Anderson - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Ronald Harold Wilfred Cooper - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Laura Bessen - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
 Stephen Fawell - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Donna Roy Grogan - Director | Grant or award | Stock Option (Right to Buy) | 62,000 | $0.00 | - | |
| Kenneth Carl Anderson - Director | Option exercise | Common Stock | 1,070 | $2.11 | $2K | |
| Kenneth Carl Anderson - Director | Option exercise | Stock Option (Right to Buy) | 1,070 | $0.00 | - | |
| Kenneth Carl Anderson - Director | Grant or award | Common Stock | 4,259 | $2.70 | $11K | |
| Donna Roy Grogan - Director | Grant or award | Common Stock | 5,370 | $2.70 | $14K | |
| Scott N. Boyle - Officer | Grant or award | Common Stock | 200,000 | $0.00 | - | |
| Scott N. Boyle - Officer | Option exercise | Common Stock | 5,000 | $0.00 | - | |
| Scott N. Boyle - Officer | Tax withholding / forfeiture | Common Stock | 1,735 | $1.89 | $3K | |
| Scott N. Boyle - Officer | Option exercise | Common Stock | 20,950 | $0.00 | - | |
| Scott N. Boyle - Officer | Tax withholding / forfeiture | Common Stock | 7,269 | $1.89 | $14K | |
| Paige Mahaney - Officer | Grant or award | Common Stock | 240,000 | $0.00 | - | |
| Paige Mahaney - Officer | Option exercise | Common Stock | 7,050 | $0.00 | - | |
| Paige Mahaney - Officer | Tax withholding / forfeiture | Common Stock | 2,446 | $1.89 | $5K | |
| Kelly Schick - Officer | Grant or award | Common Stock | 200,000 | $0.00 | - | |
| Kelly Schick - Officer | Option exercise | Common Stock | 5,000 | $0.00 | - | |
| Kelly Schick - Officer | Tax withholding / forfeiture | Common Stock | 1,735 | $1.89 | $3K | |
| Kelly Schick - Officer | Option exercise | Common Stock | 20,950 | $0.00 | - | |
| Kelly Schick - Officer | Tax withholding / forfeiture | Common Stock | 7,269 | $1.89 | $14K | |
| Andrew Hirsch - Officer | Grant or award | Common Stock | 700,000 | $0.00 | - | |
| Andrew Hirsch - Officer | Option exercise | Common Stock | 81,725 | $0.00 | - | |
| Andrew Hirsch - Officer | Tax withholding / forfeiture | Common Stock | 39,154 | $1.89 | $74K | |
| Andrew Hirsch - Officer | Option exercise | Common Stock | 20,400 | $0.00 | - | |
| Andrew Hirsch - Officer | Tax withholding / forfeiture | Common Stock | 9,057 | $1.89 | $17K | |
| Leonard Reyno - Officer | Grant or award | Common Stock | 240,000 | $0.00 | - | |
| Leonard Reyno - Officer | Option exercise | Common Stock | 30,950 | $0.00 | - | |
| Leonard Reyno - Officer | Tax withholding / forfeiture | Common Stock | 16,579 | $1.89 | $31K | |
| Kendra Adams - Officer | Grant or award | Common Stock | 240,000 | $0.00 | - | |
| Kendra Adams - Officer | Option exercise | Common Stock | 3,750 | $0.00 | - | |
| Kendra Adams - Officer | Tax withholding / forfeiture | Common Stock | 1,863 | $1.89 | $4K | |
| Kendra Adams - Officer | Option exercise | Common Stock | 30,950 | $0.00 | - | |
| Kendra Adams - Officer | Tax withholding / forfeiture | Common Stock | 15,381 | $1.89 | $29K | |
 Mark Mossler - Officer | Grant or award | Common Stock | 56,980 | $0.00 | - | |
| Mark Mossler - Officer | Option exercise | Common Stock | 9,420 | $0.00 | - | |
| Mark Mossler - Officer | Tax withholding / forfeiture | Common Stock | 3,268 | $1.89 | $6K | |
| Leonard Reyno - Officer | Open-market sale | Common Stock | 10,000 | $2.22 | $22K | |
| Paige Mahaney - Officer | Option exercise | Common Stock | 19,200 | $0.00 | - | |
| Paige Mahaney - Officer | Tax withholding / forfeiture | Common Stock | 5,644 | $2.58 | $15K | |
| Kenneth Carl Anderson - Director | Grant or award | Common Stock | 5,349 | $2.15 | $12K | |
| Donna Roy Grogan - Director | Grant or award | Common Stock | 6,740 | $2.15 | $14K | |
| Kendra Adams - Officer | Option exercise | Common Stock | 6,250 | $0.00 | - | |
| Kendra Adams - Officer | Tax withholding / forfeiture | Common Stock | 2,775 | $3.32 | $9K | |
| Leonard Reyno - Officer | Option exercise | Common Stock | 15,325 | $0.00 | - | |
| Leonard Reyno - Officer | Tax withholding / forfeiture | Common Stock | 7,382 | $1.99 | $15K | |
| Kenneth Carl Anderson - Director | Grant or award | Common Stock | 7,616 | $1.51 | $12K | |
| Donna Roy Grogan - Director | Grant or award | Common Stock | 9,609 | $1.51 | $15K | |
| Steven L. Hoerter - Director | Grant or award | Stock Option (Right to Buy) | 65,000 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| Mark Mossler | Officer | 4,139 | $18K | View on EDGAR | |
| JAY GELDMACHER | Former REZI CEO | 82,563 | $1.90M | View on EDGAR | |
| Mark Mossler | Officer | 15,000 | $61K | View on EDGAR |
C4 Therapeutics, Inc. (CCCC) had 12 insider filings in the last 90 days, with the most recent on 2026-07-13. The full record for CCCC runs to 38 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of CCCC were filed in the last 90 days.
No insider sales of CCCC were filed in the last 90 days. 1 sale is on record for this company.
This page tracks CCCC Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
Create a free InsiderAlpha account and press Watch on this page to add CCCC to your watchlist. A free account also opens the full scored daily plan with every past day and 3 months of price history. No card is required. Sign up at https://insideralpha.ai/register.
Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
Real-time Form 4 alerts, AI-scored daily trade ideas and 10b5-1 plan flags.
