Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 9 years
- Director since
- 2023
9 years of board service in total across 3 boards, counting each seat separately. Longest: Zai Lab Limited, 3 years.
Chief executive roles
Weak · grade F
Out of 100, from shareholder return, dividends, growth and acquisitions.
Partial: only 20% of the scoring weight is on file.
- Revenue growth 20%
- 0
-55.3% a year in revenue
20% of the scoring weight is on file. Figures cover December 2023 – December 2025.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Zenas BioPharma Inc. June 10, 202599.1%
-
Dianthus Therapeutics Inc. May 23, 2024100.0%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jun 17, 2026 | Zai Lab Limited | Grant or award | +22,371 | — | — |
| May 18, 2026 | Zenas BioPharma Inc. | Open-market purchase | +60,000 | $16.88 | $1,012,800 |
| Apr 29, 2026 | Zenas BioPharma Inc. | Open-market purchase | +35,000 | $17.62 | $616,700 |
| Apr 28, 2026 | Zenas BioPharma Inc. | Open-market purchase | +25,000 | $18.02 | $450,500 |
| Mar 31, 2026 | Zenas BioPharma Inc. | Open-market purchase | +34,000 | $19.31 | $656,540 |
| Mar 30, 2026 | Zenas BioPharma Inc. | Open-market purchase | +20,000 | $18.23 | $364,600 |
| Feb 2, 2026 | Zenas BioPharma Inc. | Open-market purchase | +57,000 | $17.96 | $1,023,720 |
| Jan 9, 2026 | Zenas BioPharma Inc. | Open-market purchase | +20,000 | $16.55 | $331,000 |
| Jan 8, 2026 | Zenas BioPharma Inc. | Open-market purchase | +30,000 | $16.30 | $489,000 |
| Jan 7, 2026 | Zenas BioPharma Inc. | Open-market purchase | +50,000 | $16.38 | $819,000 |
| Oct 7, 2025 | Zenas BioPharma Inc. | Open-market purchase | +36,928 | $20.85 | $769,949 |
| Jun 18, 2025 | Zai Lab Limited | Grant or award | +10,831 | — | — |
| Feb 18, 2025 | Zenas BioPharma Inc. | Open-market purchase | +25,000 | $6.67 | $166,750 |
| Dec 4, 2024 | Zenas BioPharma Inc. | Open-market purchase | +45,000 | $9.98 | $449,100 |
| Dec 3, 2024 | Zenas BioPharma Inc. | Open-market purchase | +25,000 | $10.76 | $269,000 |
Questions about Leon O. Moulder Jr.
What boards is Leon O. Moulder Jr. on?
Leon O. Moulder Jr. sits on the boards of Dianthus Therapeutics Inc., Zai Lab Limited and Zenas BioPharma Inc.
What company is Leon O. Moulder Jr. the CEO of?
Leon O. Moulder Jr. has been Chief Executive Officer of Zenas BioPharma Inc. since September 2024.
How long has Leon O. Moulder Jr. served on boards?
Our records show at least 9 years of board service across 3 boards, the earliest from 2023.
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