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Leon O Moulder Jr

See Remarks · Zenas BioPharma

Leon O Moulder Jr (See Remarks) filed 5 Form 4 reports in the trailing twelve months (5 purchases, 0 sales), most often in Zenas BioPharma, Inc. (ZBIO). Across 5 priced purchase filings, the average 21-session return was +13.9% from execution and +14.7% from disclosure (delay-adjusted; derived). The largest single filing was $1.6M of ZBIO (100,000 sh across 3 lots, as filed), executed Jan 7. Data as of Nov 8 2026.

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Return, ttmiAverage return per filing, trailing twelve months
+13.9%
avg across 5 priced filings
Delay-adjustediThe same average, entered at disclosure dates
+14.7%
same 5 filings, from disclosure
Filings, ttm
5
5 buys · 0 sells
Median delay
1d
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$5.8M
shares × price, as filed
Last traded
May 18
Filed May 18
Impact on $10,000 · 12M
$15,154 (+51.5%)
S&P 500 $10,907 (+9.1%) · 42.5 pts ahead
$18.6k$14.0k$9.3kNov 10 2025May 12Nov 6
Leon O Moulder Jr S&P 500

Derived: compounded across filings from disclosure dates · past 12 months

Open performance→
Volume by month
$1.6M$820K$0Dec 2024Jun 2025Dec 2025Jun 2026Dec 2024 · buys $718KFeb 2025 · buys $167KOct 2025 · buys $770KJan 2026 · buys $1.6MFeb 2026 · buys $1.0MMar 2026 · buys $1.0MApr 2026 · buys $1.1MMay 2026 · buys $1.0M
Buys $7.4M Sells $0

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Healthcare 5 filings

Sector per market data · by filing · past 12 months

Most traded names
ZBIO Zenas BioPharma, Inc. ZBIO · 9 buys · 0 sells 9 filings
Recent filings
ZBIOPURCHASE Zenas BioPharma, Inc. View filing → $112K
7,500 sh × $15.00
Exec Nov 18 2024
Filed Nov 20 2024 · 5:30 PM ET