Insiders / Xu Jiandong
Xu Jiandong
CIK 1920399personinsider
Companies
2
First seen
Apr 6, 2022
Last activity
Apr 29, 2026
Companies
| Company | Shares held | Latest |
|---|---|---|
| Semnur Pharmaceuticals, Inc. · DECA | 510,000 | — |
| Estrella Immunopharma, Inc. · ESLA | 282,188 | — |
All securities held
4 positions · latest reported per filing
Shares
| Company | Security | Shares |
|---|---|---|
| Estrella Immunopharma, Inc. | Common stock | 282,188 |
| Semnur Pharmaceuticals, Inc. | Class A ordinary shares | 510,000 |
| Semnur Pharmaceuticals, Inc. | Class B ordinary shares | 1,932,500 |
Other
| Company | Security | Shares |
|---|---|---|
| Estrella Immunopharma, Inc. | Unclassified | 509,203 |
Ownership percentages elsewhere on the site count common and ordinary shares only, because that is what shares outstanding are measured in. Everything above is a real holding; not all of it is a share of the company.
Activity
InsidersInstitutions
This person's trades in company stock, across every company.| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Apr 11, 2022 | Buy Open-market buy | DECA Semnur Pharmaceuticals, Inc. Class A Ordinary Shares | $5.10M | +510K | 510,000 | high |
| Oct 7, 2025 | Buy Open-market buy | ESLA Estrella Immunopharma, Inc. Common Stock, par value $0.0001 per share | $1.3K | +1K +0.38% | 265,488 | low |
| Sep 22, 2025 | Buy Open-market buy | ESLA Estrella Immunopharma, Inc. Common Stock, par value $0.0001 per share | $1.2K | +1K |