MOULDER LEON O JR

PrivateCIK: 1228865
Location

WALTHAM, MA

MOULDER LEON O JR (Chief Executive Officer) purchased 15.6% of their position (57K shares) of ZENAS BIOPHARMA, INC. on the open market

Open‑market purchase worth $1.02M — a significant purchase. 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
+57K
Net shares
Net buyer
$1.02M
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
57K acquired
Non-Derivative Transactions1

Common Stock

Direct
P · Purchase

Shares

+57K

Price / share

$17.96

Trade value

$1.02M

% of position

15.6%
2/2/2026
366.15K423.15K
Total

Net shares

+57K

Net value

$1.02M

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

Common Stock

Indirect
Shares owned36.93K

Common Stock

Indirect
Shares owned1.67M
Total
1.71M indirect1.71M
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
MOULDER LEON O JR — Insider Transaction (Form 4) Filed Feb 3, 2026 | Finecho