MOULDER LEON O JR (Chief Executive Officer) purchased 37.6% of their position (100K shares) of ZENAS BIOPHARMA, INC. on the open market
Open‑market purchase worth $1.64M — a major conviction buy. The strongest form of insider conviction signal.
P · 3 purchases
Filed: 1/9/2026ACC: 0001104659-26-002589
DirectorOfficer· Chief Executive Officer
Since Feb 2026
+100K
Net shares
Net buyer
$1.64M
Total acquired
3
Open market trades
3B · 0S
3
Total transactions
100K acquired
Non-Derivative Transactions3
Common Stock
Direct
Shares
+50K
Price / share
$16.38
Trade value
$819K
% of position
18.8%
1/7/2026
266.15K→316.15K
Common Stock
Direct
Shares
+30K
Price / share
$16.30
Trade value
$489K
% of position
9.5%
1/8/2026
316.15K→346.15K
Common Stock
Direct
Shares
+20K
Price / share
$16.55
Trade value
$331K
% of position
5.8%
1/9/2026
346.15K→366.15K
Total
Net shares
+100K
Net value
$1.64M
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 1/7/2026 | P · Purchase | +50K | $16.38 | $819K | 18.8% | 266.15K | 316.15K |
| Common Stock Direct | 1/8/2026 | P · Purchase | +30K | $16.30 | $489K | 9.5% | 316.15K | 346.15K |
| Common Stock Direct | 1/9/2026 | P · Purchase | +20K | $16.55 | $331K | 5.8% | 346.15K | 366.15K |
| Total | +100K | $1.64M | ||||||
Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)2
Common Stock
IndirectShares owned1.67M
Common Stock
IndirectShares owned36.93K
Total
1.71M indirect1.71M
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Stock | 1.67M | Indirect |
| Common Stock | 36.93K | Indirect |
| Total | 1.71M | 1.71M indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported