CCCC

CCCC · C4 Therapeutics Inc. Common Stock

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September 26, 2026

C4 Therapeutics Shares New Biomarker Data from Phase 1 Trials. C4 Therapeutics presented new biomarker results from its cemsidomide phase 1 trial with dexamethasone and a phase 1b trial with elranatamab at the 23rd International Myeloma Society meeting. The data provide early insights into how the drugs may work in relapsed/refractory multiple myeloma patients. This update highlights the company’s ongoing clinical development efforts.

this person other insiders at CCCC

Insiders & Stakes

Andrew Hirsch
President & CEO
1,074,934
Shares held
Prokupets Elena
Director
503,126
Shares held
Kendra Adams
Chief Financial Officer
382,323
Shares held
Leonard Reyno
Chief Medical Officer
372,406
Shares held
Paige Mahaney
Chief Scientific Officer
336,910
Shares held
Kelly Schick
Chief People Officer
299,881
Shares held
Scott N. Boyle
Chief Business Officer
298,801
Shares held
Fisher Stewart
Chief Scientific Officer
130,710
Shares held
Siegel Jolie
Chief Legal Officer
107,939
Shares held
Donna Roy Grogan
Director
79,471
Shares held
Kenneth Carl Anderson
Director
75,612
Shares held
Mark Mossler
Chief Accounting Officer
71,916
Shares held
White Lauren
Chief Financial Officer
32,686
Shares held
Dubin Glenn
Director
22,075
Shares held
Crystal Adam
President, R&D
20,097
Shares held
Salter Malcolm
Director
11,380
Shares held
Koppikar Utpal
Director
5,667
Shares held
COHEN MARC A
Director
1,118
Shares held
COHEN ALAIN J
Director
928
Shares held

Transaction History

Kenneth Carl Anderson▲ Buy$11K
Donna Roy Grogan▲ Buy$15K
Kendra Adams▲ Buy$0
Kendra Adams▼ Sell$9K
Leonard Reyno▲ Buy$0
Leonard Reyno▼ Sell$30K
Kenneth Carl Anderson▲ Buy$12K
Donna Roy Grogan▲ Buy$14K
Kenneth Carl Anderson▲ Buy$2K
Kenneth Carl Anderson▲ Buy$11K
Donna Roy Grogan▲ Buy$14K
Andrew Hirsch▲ Buy$0
Andrew Hirsch▼ Sell$17K
Scott N. Boyle▲ Buy$0
Scott N. Boyle▼ Sell$14K
Paige Mahaney▲ Buy$0
Paige Mahaney▼ Sell$5K
Kelly Schick▲ Buy$0
Kelly Schick▼ Sell$14K
Andrew Hirsch▲ Buy$0
Andrew Hirsch▼ Sell$74K
Leonard Reyno▲ Buy$0
Leonard Reyno▼ Sell$31K
Kendra Adams▲ Buy$0
Kendra Adams▼ Sell$29K
Mark Mossler▲ Buy$0
Mark Mossler▼ Sell$6K
Scott N. Boyle▲ Buy$0
Scott N. Boyle▲ Buy$0
Scott N. Boyle▼ Sell$3K
Paige Mahaney▲ Buy$0
Kelly Schick▲ Buy$0
Kelly Schick▲ Buy$0
Kelly Schick▼ Sell$3K
Andrew Hirsch▲ Buy$0
Leonard Reyno▲ Buy$0
Kendra Adams▲ Buy$0
Kendra Adams▲ Buy$0
Kendra Adams▼ Sell$4K
Mark Mossler▲ Buy$0
Leonard Reyno▼ Sell$22K
Kenneth Carl Anderson▲ Buy$11K
Donna Roy Grogan▲ Buy$15K
Paige Mahaney▲ Buy$0
Paige Mahaney▼ Sell$15K
Kenneth Carl Anderson▲ Buy$12K
Donna Roy Grogan▲ Buy$14K
Kendra Adams▲ Buy$0
Kendra Adams▼ Sell$9K
Leonard Reyno▼ Sell$15K
Kenneth Carl Anderson▲ Buy$12K
Donna Roy Grogan▲ Buy$15K
Donna Roy Grogan▲ Buy$14K
Kenneth Carl Anderson▲ Buy$11K
Scott N. Boyle▼ Sell$2K
Andrew Hirsch▼ Sell$30K
Siegel Jolie▼ Sell$9K
Kelly Schick▼ Sell$8K
Kendra Adams▼ Sell$14K
Paige Mahaney▲ Buy$0
Leonard Reyno▲ Buy$0
Leonard Reyno▼ Sell$16K
Kendra Adams▲ Buy$0
Kelly Schick▲ Buy$0
Andrew Hirsch▲ Buy$0
Andrew Hirsch▼ Sell$41K
Siegel Jolie▲ Buy$0
Scott N. Boyle▲ Buy$0
Scott N. Boyle▼ Sell$2K
Scott N. Boyle▼ Sell$8K
Mark Mossler▼ Sell$5K
Kendra Adams▼ Sell$6K
Siegel Jolie▼ Sell$7K
Scott N. Boyle▼ Sell$6K
Kelly Schick▼ Sell$6K
Kenneth Carl Anderson▲ Buy$11K
Donna Roy Grogan▲ Buy$14K
Scott N. Boyle▼ Sell$7K
Kendra Adams▲ Buy—
Kendra Adams▼ Sell$7K
Kelly Schick▼ Sell$7K
Siegel Jolie▲ Buy—
Siegel Jolie▼ Sell$7K
Andrew Hirsch▲ Buy—
Scott N. Boyle▲ Buy—
Andrew Hirsch▼ Sell$34K
Kelly Schick▲ Buy—
Paige Mahaney▲ Buy$0
Donna Roy Grogan▲ Buy$14K
Kenneth Carl Anderson▲ Buy$11K
Kendra Adams▼ Sell$12K
Andrew Hirsch▼ Sell$21K
Scott N. Boyle▲ Buy—
Scott N. Boyle▼ Sell$4K
Kendra Adams▲ Buy—
Kendra Adams▼ Sell$4K
Fisher Stewart▲ Buy—
Fisher Stewart▼ Sell$4K
Kelly Schick▲ Buy—
Kelly Schick▼ Sell$4K
Siegel Jolie▼ Sell$4K
Siegel Jolie▲ Buy—
Andrew Hirsch▲ Buy—
Leonard Reyno▼ Sell$31K
Donna Roy Grogan▲ Buy$14K
Kenneth Carl Anderson▲ Buy$11K
Kenneth Carl Anderson▲ Buy$11K
Dubin Glenn▲ Buy$11K
Donna Roy Grogan▲ Buy$14K
Andrew Hirsch▼ Sell$52K
Fisher Stewart▲ Buy$0
Mark Mossler▲ Buy$0
Andrew Hirsch▲ Buy$0
Siegel Jolie▲ Buy$0
Kelly Schick▲ Buy$0
Kendra Adams▲ Buy$0
Scott N. Boyle▲ Buy$0
Leonard Reyno▲ Buy$0
Siegel Jolie▼ Sell$11K
Kelly Schick▼ Sell$11K
Kendra Adams▼ Sell$8K
Fisher Stewart▼ Sell$15K
Scott N. Boyle▼ Sell$11K
Kenneth Carl Anderson▲ Buy$11K
Donna Roy Grogan▲ Buy$14K
Dubin Glenn▲ Buy$11K
Dubin Glenn▲ Buy$11K
Donna Roy Grogan▲ Buy$14K
Kenneth Carl Anderson▲ Buy$11K
Kendra Adams▲ Buy$0
Fisher Stewart▲ Buy—
Scott N. Boyle▼ Sell$2K
Andrew Hirsch▲ Buy—
Andrew Hirsch▼ Sell$6K
Siegel Jolie▲ Buy—
Siegel Jolie▼ Sell$2K
White Lauren▲ Buy—
White Lauren▼ Sell$2K
Kelly Schick▲ Buy—
Kelly Schick▼ Sell$2K
Fisher Stewart▼ Sell$2K
Scott N. Boyle▲ Buy—
Leonard Reyno▲ Buy$0
Kenneth Carl Anderson▲ Buy$11K
Donna Roy Grogan▲ Buy$14K
Dubin Glenn▲ Buy$11K
Dubin Glenn▲ Buy$11K
Kenneth Carl Anderson▲ Buy$11K
Donna Roy Grogan▲ Buy$14K
Andrew Hirsch▲ Buy$0
White Lauren▲ Buy$0
Kelly Schick▲ Buy$0
Fisher Stewart▲ Buy$0
Siegel Jolie▲ Buy$0
Scott N. Boyle▲ Buy$0
Koppikar Utpal▲ Buy$32K
White Lauren▼ Sell$10K
Andrew Hirsch▼ Sell$34K
Siegel Jolie▼ Sell$10K
Kelly Schick▼ Sell$10K
Kelly Schick▲ Buy—
Fisher Stewart▲ Buy—
Fisher Stewart▼ Sell$10K
Siegel Jolie▲ Buy—
Crystal Adam▲ Buy—
Crystal Adam▼ Sell$10K
White Lauren▲ Buy—
Scott N. Boyle▲ Buy—
Scott N. Boyle▼ Sell$10K
Andrew Hirsch▲ Buy—
Kenneth Carl Anderson▲ Buy$2K
Kenneth Carl Anderson▲ Buy$565
Donna Roy Grogan▲ Buy$11K
Dubin Glenn▲ Buy$11K
Kenneth Carl Anderson▲ Buy$10K
Kenneth Carl Anderson▲ Buy$563
Kenneth Carl Anderson▲ Buy$2K
Kenneth Carl Anderson▲ Buy$10K
Dubin Glenn▲ Buy$11K
Donna Roy Grogan▲ Buy$7K
Kenneth Carl Anderson▲ Buy$1K
Kenneth Carl Anderson▲ Buy$4K
Dubin Glenn▲ Buy$11K
Kenneth Carl Anderson▲ Buy$10K
Siegel Jolie▲ Buy—
Crystal Adam▲ Buy—
Kelly Schick▲ Buy—
Fisher Stewart▲ Buy—
White Lauren▲ Buy—
Scott N. Boyle▲ Buy—
Andrew Hirsch▲ Buy—
Fisher Stewart▲ Buy$129K
Fisher Stewart▲ Buy$8K
Andrew Hirsch▲ Buy$84K
Dubin Glenn▲ Buy$10K
Kenneth Carl Anderson▲ Buy$9K
COHEN ALAIN J▲ Buy$10K
Kenneth Carl Anderson▲ Buy$2K
Kenneth Carl Anderson▲ Buy$7K
Salter Malcolm▲ Buy$14K

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