LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
DFTXCIK 0001813814

Definium Therapeutics, Inc.

47 transactions by 11 insiders, from January 29, 2026 to September 25, 2026.

Transactions
4711 insiders
Bought · P
Nonenobody bought on the open market
Sold · S
$6.4Mopen market
Net
−$6.4Mnet selling

Officers and directors

People inside the company. What they do with their own shares is the reason this data exists.

InsiderTradesPlannedBoughtSold
Robert BarrowCEO85/8—$3.6M
Mark SullivanGC63/6—$1.3M
Daniel KarlinCMO63/6—$997K
Matthew T. WileyChief52/5—$242K
Brandi RobertsCFO52/5—$259K
Andreas KrebsDir4———
Carol A. ValloneDir4———
Roger AdsettDir3———
Suzanne Louise BruhnDir2———
David W. GryskaDir2———
Roger CrystalDir2———

All transactions

47 in total, newest filings first.

InsiderDateCodeSharesPriceValue
Daniel KarlinCMOSep 25SPLAN10,853$36.57$397K
Robert BarrowCEOSep 25SPLAN31,550$36.57$1.2M
Matthew T. WileyChiefSep 25SPLAN3,097$36.57$113K
Mark SullivanGCSep 25SPLAN14,051$36.57$514K
Brandi RobertsCFOSep 25SPLAN3,377$36.57$123K
Carol A. ValloneDirDERIVSep 18M1,086$0.00—?
Carol A. ValloneDirSep 18M1,086$35.52$39K
Andreas KrebsDirDERIVSep 18M1,629$0.00—?
Andreas KrebsDirSep 18M1,629$35.52$58K
Robert BarrowCEOSep 3SPLAN19,023$37.94$722K
Robert BarrowCEOSep 2APLAN40,000$0.00—
Daniel KarlinCMOAug 12A100,000$0.00—
Mark SullivanGCAug 12A62,500$0.00—
Matthew T. WileyChiefAug 12A62,500$0.00—
Brandi RobertsCFOAug 12A62,500$0.00—
Robert BarrowCEOAug 12A375,000$0.00—
Mark SullivanGCJun 25SPLAN13,008$45.03$586K
Daniel KarlinCMOJun 25SPLAN10,035$45.03$452K
Brandi RobertsCFOJun 25SPLAN3,013$45.03$136K
Matthew T. WileyChiefJun 25SPLAN2,867$45.03$129K
Robert BarrowCEOJun 25SPLAN29,208$45.03$1.3M
Matthew T. WileyChiefJun 22A62,500$0.00—
Brandi RobertsCFOJun 22A62,500$0.00—
Mark SullivanGCJun 22A62,500$0.00—
Daniel KarlinCMOJun 22A100,000$0.00—
Robert BarrowCEOJun 22A375,000$0.00—
David W. GryskaDirDERIVJun 11A19,188$0.00—?
David W. GryskaDirJun 11A4,666$0.00—
Carol A. ValloneDirDERIVJun 11A19,188$0.00—?
Carol A. ValloneDirJun 11A4,666$0.00—
Andreas KrebsDirDERIVJun 11A19,188$0.00—?
Andreas KrebsDirJun 11A4,666$0.00—
Roger CrystalDirDERIVJun 11A19,188$0.00—?
Roger CrystalDirJun 11A4,666$0.00—
Suzanne Louise BruhnDirDERIVJun 11A19,188$0.00—?
Suzanne Louise BruhnDirJun 11A4,666$0.00—
Roger AdsettDirDERIVJun 11A14,620$0.00—?
Roger AdsettDirJun 11A3,555$0.00—
Daniel KarlinCMOMar 25SPLAN8,018$18.47$148K
Mark SullivanGCMar 25SPLAN10,702$18.47$198K
Robert BarrowCEOMar 25SPLAN24,431$18.47$451K
Matthew T. WileyChiefFeb 3A115,000$0.00—
Brandi RobertsCFOFeb 3A150,000$0.00—
Mark SullivanGCFeb 3A125,000$0.00—
Daniel KarlinCMOFeb 3A150,000$0.00—
Robert BarrowCEOFeb 3A320,000$0.00—
Roger AdsettDirDERIVJan 29A50,000$0.00—?