MOULDER LEON O JR

PrivateCIK: 1228865
Location

WALTHAM, MA

MOULDER LEON O JR (Chief Executive Officer) purchased 162.5% of their position (60K shares) of ZENAS BIOPHARMA, INC. on the open market

Open‑market purchase worth $1.01M — a major conviction buy. The strongest form of insider conviction signal.

P · 1 purchase
InsiderMOULDER LEON O JRCIK 1228865
IssuerZENAS BIOPHARMA, INC.CIK 1953926
DirectorOfficer· Chief Executive Officer
Since Feb 2026
+60K
Net shares
Net buyer
$1.01M
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
60K acquired
Non-Derivative Transactions1

Common Stock

Indirect
P · Purchase

Shares

+60K

Price / share

$16.88

Trade value

$1.01M

% of position

162.5%
5/18/2026
36.93K96.93K
Total

Net shares

+60K

Net value

$1.01M

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect
Shares owned1.79M

Common Stock

Direct
Shares owned423.15K
Total
423.15K direct·1.79M indirect2.21M
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
MOULDER LEON O JR — Insider Transaction (Form 4) Filed May 19, 2026 | Finecho