Mark Sullivan

Chief Legal Officer

Mark Sullivan (Chief Legal Officer) filed 4 Form 4 reports in the trailing twelve months (0 purchases, 4 sales), most often in Definium Therapeutics, Inc. (DFTX). The largest single filing was $586K of DFTX (13,008 sh × $45.03, as filed), executed Jun 25.

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Return, ttmiAverage return per filing, trailing twelve months

–

no purchases on file

Delay-adjustediThe same average, entered at disclosure dates

–

returns measure stock purchases only

Filings, ttm

0 buys · 4 sells

Median delay

–

execution → disclosure

Volume, ttmiDollar value disclosed in the trailing twelve months

$932K

shares × price, as filed

Last traded

Jun 25

Filed Jun 26

Median ADV $136.1M across their filed names

Open performance→

Volume by month

Buys $0 Sells $1.0M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on

Healthcare 2 filings Not on file 2 filings

Sector per market data · by filing · past 12 months

Most traded names

DFTX Definium Therapeutics, Inc. DFTX · 0 buys · 2 sells 2 filings MNMD MNMD MNMD · 0 buys · 2 sells 2 filings

Recent filings

DFTXSALE Definium Therapeutics, Inc. View filing → $586K
13,008 sh × $45.03
Exec Jun 25
Filed Jun 26 · 5:30 PM ET DFTXSALE Definium Therapeutics, Inc. View filing → $198K
10,702 sh × $18.47
Exec Mar 25
Filed Mar 26 · 5:30 PM ET MNMDSALE Mind Medicine (MindMed) Inc. View filing → $148K
11,276 sh × $13.15
Exec Dec 26 2025
Filed Dec 29 2025 · 5:30 PM ET MNMDSALE Mind Medicine (MindMed) Inc. View filing → $110K
11,278 sh × $9.77
Exec Sep 25 2025
Filed Sep 26 2025 · 5:30 PM ET