Ma Jiong (CIK 1854872) reported 2 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-20). Recent activity: Buy SES (141,593 shares), Buy SES (160,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-20 | SES AI Corp (SES) | Director | Buy | 141,593 | $0 |
| 2025-04-01 | SES AI Corp (SES) | Director | Buy | 160,000 | $0 |
Source: SEC Form 4 filings · as of 2026-05-20