C4 Therapeutics, Inc. (CCCC)
Data as of , from SEC Form 4 filings.
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- Leonard Reyno - OfficerOpen-market sale$22K
- Kenneth Carl Anderson - DirectorGrant or award$11K
Donna Roy Grogan - DirectorGrant or award$15K- Kendra Adams - OfficerOption exercise6,250 sh
- Kendra Adams - OfficerTax withholding / forfeiture$9K
- Leonard Reyno - OfficerOption exercise15,325 sh
- Leonard Reyno - OfficerTax withholding / forfeiture$30K
- Kenneth Carl Anderson - DirectorGrant or award$12K
About C4 Therapeutics, Inc. (CCCC)
C4 Therapeutics, Inc. is an SEC registrant, filing under CIK 0001662579, classified as biological products (no diagnostic substances). We track it alongside the rest of the Health Care sector.
CCCC Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Grant or award | 2 | 8,280 | |
| Option exercise | 1 | 6,250 | |
| Tax withholding / forfeiture | 1 | 2,775 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
CCCC insider transactions (Form 4)
5841 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 |
|---|---|---|---|---|---|---|
| Kenneth Carl Anderson - Director | Grant or award | Common Stock | 3,662 | $3.14 footnote F2 | $11K | |
| ||||||
| Donna Roy Grogan - Director | Grant or award | Common Stock | 4,618 | $3.14 footnote F2 | $15K | |
| ||||||
| Kendra Adams - Officer | Option exercise | Common Stock | 6,250 | $0.00 | - | |
| Kendra Adams - Officer | Tax withholding / forfeiture | Common Stock | 2,775 | $3.39 | $9K | |
| 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 footnote F2 | $12K | |
| ||||||
| Donna Roy Grogan - Director | Grant or award | Common Stock | 3,341 | $4.34 footnote F2 | $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 footnote F2 | $11K | |
| ||||||
| Donna Roy Grogan - Director | Grant or award | Common Stock | 5,370 | $2.70 footnote F2 | $14K | |
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| Scott N. Boyle - Officer | Grant or award | Common Stock | 200,000 footnote F1 | $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 footnote F1 | $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 footnote F1 | $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 footnote F1 | $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 footnote F1 | $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 footnote F1 | $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 footnote F1 | $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 footnote F2 | $12K | |
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| Donna Roy Grogan - Director | Grant or award | Common Stock | 6,740 | $2.15 footnote F2 | $14K | |
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| 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 | |
Item 7.01, 8.01, 9.01
Item 2.02, 9.01
Item 5.07, 9.01
Item 7.01, 8.01, 9.01
Item 5.02
Recent CCCC Form 144 notices of proposed sale
3An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| 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 |
CCCC insider trading FAQ
What is the latest insider trade for CCCC?
C4 Therapeutics, Inc. (CCCC) had 3 insider filings in the last 90 days, with the most recent on 2026-10-02. The full record for CCCC runs to 41 Form 4 filings, the earliest from 2024-10-02. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying CCCC stock?
No insider purchases of CCCC were filed in the last 90 days.
How many insiders are selling CCCC stock?
No insider sales of CCCC were filed in the last 90 days. 1 sale is on record for this company.
Where can I see CCCC SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects CCCC Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Kenneth Carl Anderson view on EDGAR
- - Donna Roy Grogan view on EDGAR
- - Kendra Adams view on EDGAR
- - Leonard Reyno view on EDGAR
- - Kenneth Carl Anderson view on EDGAR
- - Donna Roy Grogan view on EDGAR
- - Owen Hughes view on EDGAR
- - Steven L. Hoerter view on EDGAR
- - Utpal Koppikar view on EDGAR
- - Kenneth Carl Anderson view on EDGAR
Related companies with recent insider activity
Learn more
- What the Form 4 transaction codes mean
- Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where CCCC's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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