As of the latest Form 4 filed May 27, 2026.
What SES AI Corp insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 14 most recent filings for SES.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-05-27 | 2026-05-22 | Pilkington Kyle CHIEF LEGAL OFFICER | SSale | −25.0K | $1.20 | $30.0K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Pilkington Kyle CHIEF LEGAL OFFICER | FTax | −25.2K | $1.10 | $27.7K | No | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Nealis Jing CHIEF FINANCIAL OFFICER | FTax | −36.1K | $1.10 | $39.8K | No | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Hu Qichao CEO & CHAIRMAN | FTax | −133K | $1.10 | $147K | No | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Gan Hong CHIEF SCIENCE OFFICER | FTax | −32.1K | $1.10 | $35.4K | No | Form 4 ↗ |
| 2026-03-31 | 2026-03-27 | Xu Kang CHIEF TECHNOLOGY OFFICER | FTax | −39.6K | $0.99 | $39.1K | No | Form 4 ↗ |
| 2026-03-31 | 2026-03-27 | Pilkington Kyle CHIEF LEGAL OFFICER | FTax | −60.5K | $0.99 | $59.7K | No | Form 4 ↗ |
| 2026-03-31 | 2026-03-27 | Nealis Jing CHIEF FINANCIAL OFFICER | FTax | −164K | $0.99 | $162K | No | Form 4 ↗ |
| 2026-03-31 | 2026-03-27 | Hu Qichao CEO & CHAIRMAN | FTax | −310K | $0.99 | $307K | No | Form 4 ↗ |
| 2026-03-31 | 2026-03-27 | Gan Hong CHIEF SCIENCE OFFICER | FTax | −74.7K | $0.99 | $73.7K | No | Form 4 ↗ |
| 2026-01-23 | 2026-01-23 | Gan Hong CHIEF SCIENCE OFFICER | SSale | −100K | $2.50 | $250K | Yes (planned) | Form 4 ↗ |
| 2026-01-23 | 2026-01-23 | Gan Hong, CHIEF SCIENCE OFFICER | MExercise | +100K | $0.16 | $16.0K | Yes (planned) | Form 4 ↗ |
| 2026-01-23 | 2026-01-22 | Gan Hong, CHIEF SCIENCE OFFICER | SSale | −150K | $2.50 | $374K | Yes (planned) | Form 4 ↗ |
| 2026-01-23 | 2026-01-22 | Gan Hong, CHIEF SCIENCE OFFICER | MExercise | +150K | $0.16 | $24.0K | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also SES’s full analysis or the market-wide insider trading feed. The tabs above jump to SES’s other SEC data.
Source: SEC Form 4 filings for SES, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.