C4 Therapeutics Inc.

Last updated September 27, 2026

Organization details

Legal name
C4 Therapeutics Inc.
Ownership
Public
Status
Active
Sector (GICS)
Health Care
SIC code
2836 — Biological Products, (No Diagnostic Substances)
Jurisdiction of incorporation
Delaware
Headquarters city
Watertown
Headquarters state / province
Massachusetts
Headquarters country
United States
Fiscal year end
December
Ticker symbol
CCCC
Primary stock exchange
Nasdaq

Identifiers

SEC CIK
0001662579
EIN
47-5617627
Wikidata ID
Q64142088

Board of directors

Chief executives

Andrew Hirsch · President & CEO
Dates unknown

Director election results

Annual meeting of June 24, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Board connections

7 of this board's directors also sit on 10 other boards. 10 are in the same sector.

Network of C4 Therapeutics Inc.'s board connections AnaptysBio Inc. AnaptysBio Inc. Artiva Biotherapeutics Inc. Artiva Biotherapeutics... Cardinal Health Inc. Cardinal Health Inc. Editas Medicine Inc. Editas Medicine Inc. ImageneBio Inc. ImageneBio Inc. Insmed Incorporated Insmed Incorporated MBX Biosciences Inc. MBX Biosciences Inc. Oric Pharmaceuticals Inc. Oric Pharmaceuticals I... Yarrow Bioscience Inc. Yarrow Bioscience Inc. enGene Therapeutics Inc. enGene Therapeutics In... Andrew Hirsch Andrew Hirsch Bruce Downey Bruce Downey Laura Bessen Laura Bessen Owen Hughes Owen Hughes Ronald Harold Wilfred Cooper Ronald Harold Wilfre... Steven L. Hoerter Steven L. Hoerter Utpal Koppikar Utpal Koppikar C4 Therapeutics Inc.
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$22,200
1 sale by 1 insider
Date Insider Transaction Shares Price Value
Oct 1, 2026 Kenneth Carl Anderson Director Grant or award +3,662 $3.14 $11,499
Oct 1, 2026 Donna Roy Grogan Director Grant or award +4,618 $3.14 $14,501
Sep 18, 2026 Adams Kendra Officer (Chief Financial Officer) Option exercise +6,250 — —
Sep 18, 2026 Adams Kendra Officer (Chief Financial Officer) Shares withheld for tax −2,775 $3.39 $9,407
Jul 10, 2026 REYNO LEONARD Officer (Chief Medical Officer) Option exercise +15,325 — —
Jul 10, 2026 REYNO LEONARD Officer (Chief Medical Officer) Shares withheld for tax −7,397 $4.06 $30,032
Jul 1, 2026 Kenneth Carl Anderson Director Grant or award +2,650 $4.34 $11,501
Jul 1, 2026 Donna Roy Grogan Director Grant or award +3,341 $4.34 $14,500
Jun 1, 2026 Kenneth Carl Anderson Director Option exercise +1,070 $2.11 $2,258
Apr 1, 2026 Kenneth Carl Anderson Director Grant or award +4,259 $2.70 $11,499
Apr 1, 2026 Donna Roy Grogan Director Grant or award +5,370 $2.70 $14,499
Feb 15, 2026 Andrew Hirsch Director, Officer (President & CEO) Option exercise +20,400 — —
Feb 15, 2026 Andrew Hirsch Director, Officer (President & CEO) Shares withheld for tax −9,057 $1.89 $17,118
Feb 14, 2026 Mahaney Paige Officer (Chief Scientific Officer) Option exercise +7,050 — —
Feb 14, 2026 Andrew Hirsch Director, Officer (President & CEO) Option exercise +81,725 — —

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Questions about C4 Therapeutics Inc.

Who is the CEO of C4 Therapeutics Inc.?

Andrew Hirsch is C4 Therapeutics Inc.'s President & CEO.

How many directors are on C4 Therapeutics Inc.'s board?

C4 Therapeutics Inc.'s board has 12 directors: Andrew Hirsch, Bruce Downey, Donna Roy Grogan, Glenn Dubin, Kenneth Carl Anderson, Laura Bessen, Malcolm Salter, Owen Hughes, Ronald Harold Wilfred Cooper, Stephen Fawell and 2 others.

Are C4 Therapeutics Inc. insiders buying or selling shares?

Over the last 12 months, C4 Therapeutics Inc. insiders made no open-market purchases and sold $22,200 of shares in 1 sale on the open market, as reported to the SEC on Forms 4 and 5.

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