Updated Jul 16, 2026 · Last SEC filing 2026-05-27
SES AI Corp (SES) has filed 8 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-27. 1 Form 8-K material event filings were reported by SES in the last 90 days. 6 Form 144 notices of proposed sale were filed for SES stock. InsiderAlpha tracks every SES SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001819142 |
|---|
| Form 4 filings (90d) | 8 |
|---|---|
| Form 8-K filings (90d) | 1 |
| Form 144 notices (90d) | 6 |
| Latest Form 4 filing | 2026-05-27 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Pilkington Kyle | CHIEF LEGAL OFFICER | S — Open-market sale | 25.0K | $1.20 | $30K | SEC | |
| Ma Jiong | Insider | A — Grant or award | 141.6K | $0.00 | — | SEC | |
| Liu Yi Ray | CHIEF FINANCIAL OFFICER | A — Grant or award | 331.9K | $0.00 | — | SEC | |
| Xu Kang | CHIEF TECHNOLOGY OFFICER | A — Grant or award | 221.2K | $0.00 | — | SEC | |
| Luo Eric | Insider | A — Grant or award | 141.6K | $0.00 | — | SEC | |
| Hu Qichao | CEO & CHAIRMAN | A — Grant or award | 1.50M | $0.00 | — | SEC | |
| Pilkington Kyle | CHIEF LEGAL OFFICER | A — Grant or award | 354.0K | $0.00 | — | SEC | |
| Boyd Andrew J | Insider | A — Grant or award | 141.6K | $0.00 | — | SEC | |
| Hu Qichao | CEO & CHAIRMAN | F — Tax withholding / forfeiture | 133.3K | $1.10 | $147K | SEC | |
| Gan Hong | CHIEF SCIENCE OFFICER | F — Tax withholding / forfeiture | 32.1K | $1.10 | $35K | SEC | |
| Nealis Jing | CHIEF FINANCIAL OFFICER | F — Tax withholding / forfeiture | 36.1K | $1.10 | $40K | SEC | |
| Pilkington Kyle | CHIEF LEGAL OFFICER | F — Tax withholding / forfeiture | 25.2K | $1.10 | $28K | SEC | |
| Gan Hong | CHIEF SCIENCE OFFICER | F — Tax withholding / forfeiture | 74.7K | $0.99 | $74K | SEC | |
| Nealis Jing | CHIEF FINANCIAL OFFICER | F — Tax withholding / forfeiture | 164.0K | $0.99 | $162K | SEC | |
| Hu Qichao | CEO & CHAIRMAN | F — Tax withholding / forfeiture | 310.4K | $0.99 | $307K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for SES AI Corp (SES). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Pilkington Kyle | 2 | $30K |
| Xu Kang | 1 | — |
| Boyd Andrew J | 1 | — |
| Hu Qichao | 1 | — |
| Liu Yi Ray | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SES insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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