SULLIVAN MARK

PrivateCIK: 1331843
Location

MOUNT LAUREL, NJ

SULLIVAN MARK (Chief Legal Officer) sold 2.5% of their position (4.52K shares) of DEFINIUM THERAPEUTICS, INC. on the open market

Open‑market sale worth $33.6K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderSULLIVAN MARKCIK 1331843
Officer· Chief Legal Officer
Since Feb 2026
-4.52K
Net shares
Net seller
$33.6K
Total sold
1
Open market trades
0B · 1S
1
Total transactions
4.52K disposed
Non-Derivative Transactions1

Common Shares

Direct
S · Sale

Shares

4.52K

Price / share

$7.43

Trade value

$33.58K

% of position

2.5%
12/26/2024
177.72K173.20K
Total

Net shares

4.52K

Net value

-$33.58K

Derivative Transactions0
No derivative transactions reported
SULLIVAN MARK — Insider Transaction (Form 4) Filed Dec 27, 2024 | Finecho