SULLIVAN MARK

PrivateCIK: 1331843
Location

MOUNT LAUREL, NJ

Senior insider sale

Chief Legal Officer at DEFINIUM THERAPEUTICS, INC. — senior position signals high conviction

$1.06M

27.06K shares

What this filing means

SULLIVAN MARK plans to sell 27.06K shares of DEFINIUM THERAPEUTICS, INC. valued at approximately $1.06M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderSULLIVAN MARKCIK 1331843
→
Officer· Chief Legal Officer
Since Feb 2026
27.06K
Shares to sell
$1.06M
Approx. market value
14.05K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months1
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Restricted Stock Vesting Under a Registered Plan

Services Rendered

9/25/2026
14.05K
Total acquired14.05K
Planned & Completed Dispositions2
Sort

Completed

—Completed

Units to sell

13.01K

Market value

$548.0K

6/25/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

14.05K

Market value

$516.1K

9/25/2026
Total

Units

27.06K

Value

$1.06M