SES AI Corp (SES) · Insider trading
What SES AI's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$1.17M
2 insiders, 100% under a plan
Net, 12 months
−$1.17M
bought less sold
Latest filing
2026-10-07
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Sk Inc.10% owner | – | $3.07M | 26 | 2024-12-18 | 31,843,210 |
| General Motors Co10% owner | – | $2.67M | 1 | 2024-11-15 | 9,843,622 |
| Gan HongCHIEF SCIENCE OFFICER | – | $1.17M | 5 | 2026-01-23 | 1,253,286 |
| Nealis JingCHIEF FINANCIAL OFFICER | – | $298,761 | 3 | 2025-02-10 | 1,841,637 |
| Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | – | $227,517 | 1 | 2025-02-10 | 2,781,769 |
| Pilkington KyleCHIEF LEGAL OFFICER | – | $111,540 | 3 | 2026-05-22 | 1,023,548 |
| Xu KangCHIEF TECHNOLOGY OFFICER | – | $32,724 | 1 | 2025-02-10 | 444,290 |
| Li GangCHIEF MANUFACTURING OFFICER | – | $18,614 | 1 | 2025-02-10 | 224,473 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-22 | Pilkington KyleCHIEF LEGAL OFFICER | Saleplan | 25,000 | 1.20 | $30,000 | 1,023,548 | Form 4 |
| 2026-03-09 | Pilkington KyleCHIEF LEGAL OFFICER | Saleplan | 25,000 | 1.20 | $30,000 | 780,203 | Form 4 |
| 2026-01-23 | Gan HongCHIEF SCIENCE OFFICER | Saleplan | 100,000 | 2.50 | $250,000 | 1,253,286 | Form 4 |
| 2026-01-22 | Gan HongCHIEF SCIENCE OFFICER | Saleplan | 150,000 | 2.50 | $375,000 | 1,253,286 | Form 4 |
| 2025-12-15 | Gan HongCHIEF SCIENCE OFFICER | Saleplan | 100,000 | 1.98 | $198,000 | 1,253,286 | Form 4 |
| 2025-11-17 | Gan HongCHIEF SCIENCE OFFICER | Saleplan | 150,000 | 1.90 | $285,000 | 1,253,286 | Form 4 |
| 2025-02-10 | Xu KangCHIEF TECHNOLOGY OFFICER | Saleplan | 27,969 | 1.17 | $32,724 | 444,290 | Form 4 |
| 2025-02-10 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Saleplan | 194,459 | 1.17 | $227,517 | 2,781,769 | Form 4 |
| 2025-02-10 | Nealis JingCHIEF FINANCIAL OFFICER | Saleplan | 80,992 | 1.17 | $94,761 | 1,841,637 | Form 4 |
| 2025-02-10 | Gan HongCHIEF SCIENCE OFFICER | Saleplan | 51,600 | 1.17 | $60,372 | 773,906 | Form 4 |
| 2025-02-10 | Li GangCHIEF MANUFACTURING OFFICER | Saleplan | 15,909 | 1.17 | $18,614 | 224,473 | Form 4 |
| 2025-02-10 | Pilkington KyleCHIEF LEGAL OFFICER | Saleplan | 44,051 | 1.17 | $51,540 | 496,580 | Form 4 |
| 2025-01-16 | Nealis JingCHIEF FINANCIAL OFFICER | Saleplan | 50,000 | 1.02 | $51,000 | 1,935,322 | Form 4 |
| 2024-12-26 | Nealis JingCHIEF FINANCIAL OFFICER | Saleplan | 150,000 | 1.02 | $153,000 | 1,935,322 | Form 4 |
| 2024-12-18 | Sk Inc.10% owner | Sale | 400,000 | 0.42 | $168,000 | 31,843,210 | Form 4 |
| 2024-12-17 | Sk Inc.10% owner | Sale | 326,460 | 0.38 | $124,055 | 32,243,210 | Form 4 |
| 2024-12-16 | Sk Inc.10% owner | Sale | 500,000 | 0.40 | $200,000 | 32,569,670 | Form 4 |
| 2024-12-13 | Sk Inc.10% owner | Sale | 417,857 | 0.39 | $162,964 | 33,069,670 | Form 4 |
| 2024-12-12 | Sk Inc.10% owner | Sale | 115,508 | 0.42 | $48,513 | 33,487,527 | Form 4 |
| 2024-12-11 | Sk Inc.10% owner | Sale | 300,000 | 0.44 | $132,000 | 33,603,035 | Form 4 |
| 2024-12-10 | Sk Inc.10% owner | Sale | 16,120 | 0.45 | $7,254 | 33,903,035 | Form 4 |
| 2024-12-09 | Sk Inc.10% owner | Sale | 400,000 | 0.48 | $192,000 | 33,919,155 | Form 4 |
| 2024-11-15 | General Motors Co10% ownerwith General Motors Holdings LLC, General Motors Ventures LLC | Sale | 13,332,000 | 0.20 | $2.67M | 9,843,622 | Form 4 |
| 2024-11-14 | Sk Inc.10% owner | Sale | 300,000 | 0.30 | $90,000 | 34,319,155 | Form 4 |
| 2024-11-13 | Sk Inc.10% owner | Sale | 250,000 | 0.28 | $70,000 | 34,619,155 | Form 4 |
| 2024-11-11 | Sk Inc.10% owner | Sale | 170,248 | 0.36 | $61,289 | 34,869,155 | Form 4 |
| 2024-11-08 | Sk Inc.10% owner | Sale | 103,115 | 0.37 | $38,153 | 35,039,403 | Form 4 |
| 2024-11-07 | Sk Inc.10% owner | Sale | 154,105 | 0.39 | $60,101 | 35,142,518 | Form 4 |
| 2024-11-06 | Sk Inc.10% owner | Sale | 4,461 | 0.42 | $1,874 | 35,296,623 | Form 4 |
| 2024-11-05 | Sk Inc.10% owner | Sale | 200,000 | 0.43 | $86,000 | 35,301,084 | Form 4 |
| 2024-11-04 | Sk Inc.10% owner | Sale | 200,000 | 0.45 | $90,000 | 35,501,084 | Form 4 |
| 2024-11-01 | Sk Inc.10% owner | Sale | 147,794 | 0.45 | $66,507 | 35,701,084 | Form 4 |
| 2024-10-31 | Sk Inc.10% owner | Sale | 2,200 | 0.50 | $1,100 | 35,848,878 | Form 4 |
| 2024-10-30 | Sk Inc.10% owner | Sale | 19,250 | 0.56 | $10,780 | 35,851,078 | Form 4 |
| 2024-10-29 | Sk Inc.10% owner | Sale | 235,327 | 0.57 | $134,136 | 35,870,328 | Form 4 |
| 2024-10-28 | Sk Inc.10% owner | Sale | 217,655 | 0.58 | $126,240 | 36,105,655 | Form 4 |
| 2024-10-25 | Sk Inc.10% owner | Sale | 250,000 | 0.58 | $145,000 | 36,323,310 | Form 4 |
| 2024-10-24 | Sk Inc.10% owner | Sale | 290,703 | 0.62 | $180,236 | 36,573,310 | Form 4 |
| 2024-10-23 | Sk Inc.10% owner | Sale | 350,505 | 0.67 | $234,838 | 36,864,013 | Form 4 |
| 2024-10-22 | Sk Inc.10% owner | Sale | 437,785 | 0.67 | $293,316 | 37,214,518 | Form 4 |
1 more
| 2024-10-21 | Sk Inc.10% owner | Sale | 500,000 | 0.69 | $345,000 | 37,652,303 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
36 × shares withheld for tax19 × grant or award7 × option exercise
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-10-05 | Diemer PaulDirector | Grant or award A | +320,000 | – | 320,000 | Form 4 |
| 2026-09-01 | Xu KangCHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −35,198 | 0.52 | 766,437 | Form 4 |
| 2026-05-18 | Boyd Andrew JDirector | Grant or award A | +141,593 | – | 437,889 | Form 4 |
| 2026-05-18 | Ma JiongDirector | Grant or award A | +141,593 | – | 524,993 | Form 4 |
| 2026-05-18 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Grant or award A | +1,504,425 | – | 5,449,607 | Form 4 |
| 2026-05-18 | Luo EricDirector | Grant or award A | +141,593 | – | 524,993 | Form 4 |
| 2026-05-18 | Pilkington KyleCHIEF LEGAL OFFICER | Grant or award A | +353,982 | – | 1,048,548 | Form 4 |
| 2026-05-18 | Xu KangCHIEF TECHNOLOGY OFFICER | Grant or award A | +221,239 | – | 801,635 | Form 4 |
| 2026-05-18 | Liu Yi RayCHIEF FINANCIAL OFFICER | Grant or award A | +331,858 | – | 331,858 | Form 4 |
| 2026-04-14 | Gan HongCHIEF SCIENCE OFFICER | Shares withheld for tax F | −32,138 | 1.10 | 1,031,576 | Form 4 |
| 2026-04-14 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Shares withheld for tax F | −133,303 | 1.10 | 3,945,182 | Form 4 |
| 2026-04-14 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −36,145 | 1.10 | 2,305,943 | Form 4 |
| 2026-04-14 | Pilkington KyleCHIEF LEGAL OFFICER | Shares withheld for tax F | −25,185 | 1.10 | 694,566 | Form 4 |
| 2026-03-27 | Gan HongCHIEF SCIENCE OFFICER | Shares withheld for tax F | −74,682 | 0.99 | 1,063,714 | Form 4 |
| 2026-03-27 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Shares withheld for tax F | −310,446 | 0.99 | 4,078,485 | Form 4 |
| 2026-03-27 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −163,968 | 0.99 | 2,342,088 | Form 4 |
| 2026-03-27 | Pilkington KyleCHIEF LEGAL OFFICER | Shares withheld for tax F | −60,452 | 0.99 | 719,751 | Form 4 |
| 2026-03-27 | Xu KangCHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −39,593 | 0.99 | 580,396 | Form 4 |
| 2026-02-09 | Gan HongCHIEF SCIENCE OFFICER | Shares withheld for tax F | −63,290 | 1.99 | 1,138,396 | Form 4 |
| 2026-02-09 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Shares withheld for tax F | −267,934 | 1.99 | 4,388,931 | Form 4 |
| 2026-02-09 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −110,231 | 1.99 | 2,506,056 | Form 4 |
| 2026-02-09 | Pilkington KyleCHIEF LEGAL OFFICER | Shares withheld for tax F | −56,074 | 1.99 | 805,203 | Form 4 |
| 2026-02-06 | Xu KangCHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −35,063 | 1.88 | 619,989 | Form 4 |
| 2026-01-23 | Gan HongCHIEF SCIENCE OFFICER | Option exercise M | +100,000 | 0.16 | 1,353,286 | Form 4 |
| 2026-01-22 | Gan HongCHIEF SCIENCE OFFICER | Option exercise M | +150,000 | 0.16 | 1,403,286 | Form 4 |
| 2025-12-15 | Gan HongCHIEF SCIENCE OFFICER | Option exercise M | +93,277 | 0.15 | 1,346,563 | Form 4 |
| 2025-12-15 | Gan HongCHIEF SCIENCE OFFICER | Option exercise M | +6,723 | 0.16 | 1,353,286 | Form 4 |
| 2025-11-17 | Gan HongCHIEF SCIENCE OFFICER | Option exercise M | +150,000 | 0.15 | 1,403,286 | Form 4 |
| 2025-09-08 | Boyd Andrew JDirector | Grant or award A | +296,296 | – | 296,296 | Form 4 |
| 2025-09-03 | Xu KangCHIEF TECHNOLOGY OFFICER | Shares withheld for tax F | −39,238 | 1.09 | 655,052 | Form 4 |
| 2025-08-18 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −15,691 | 1.08 | 2,616,287 | Form 4 |
| 2025-08-08 | Pilkington KyleCHIEF LEGAL OFFICER | Shares withheld for tax F | −5,452 | 1.13 | 861,277 | Form 4 |
| 2025-07-16 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −15,691 | 0.98 | 2,631,978 | Form 4 |
| 2025-06-16 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −15,691 | 0.96 | 2,647,669 | Form 4 |
| 2025-05-16 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −15,691 | 0.94 | 2,663,360 | Form 4 |
| 2025-04-18 | Pilkington KyleCHIEF LEGAL OFFICER | Shares withheld for tax F | −4,558 | 0.69 | 866,729 | Form 4 |
| 2025-04-18 | Gan HongCHIEF SCIENCE OFFICER | Shares withheld for tax F | −41,294 | 0.69 | 1,253,286 | Form 4 |
| 2025-04-18 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Shares withheld for tax F | −90,038 | 0.69 | 4,656,865 | Form 4 |
| 2025-04-18 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −37,825 | 0.69 | 2,679,051 | Form 4 |
| 2025-04-17 | Pilkington KyleCHIEF LEGAL OFFICER | Shares withheld for tax F | −25,293 | 0.62 | 871,287 | Form 4 |
| 2025-04-17 | Li GangCHIEF MANUFACTURING OFFICER | Shares withheld for tax F | −20,753 | 0.62 | 353,720 | Form 4 |
| 2025-04-17 | Gan HongCHIEF SCIENCE OFFICER | Shares withheld for tax F | −30,926 | 0.62 | 1,294,580 | Form 4 |
| 2025-04-17 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Shares withheld for tax F | −134,866 | 0.62 | 4,746,903 | Form 4 |
| 2025-04-17 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −35,410 | 0.62 | 2,732,567 | Form 4 |
| 2025-04-17 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −15,691 | 0.64 | 2,716,876 | Form 4 |
| 2025-04-01 | Li GangCHIEF MANUFACTURING OFFICER | Grant or award A | +150,000 | – | 374,473 | Form 4 |
| 2025-03-28 | Noonen MichaelDirector | Grant or award A | +160,000 | – | 383,400 | Form 4 |
| 2025-03-28 | Luo EricDirector | Grant or award A | +160,000 | – | 383,400 | Form 4 |
| 2025-03-28 | Choi JangwookDirector | Grant or award A | +160,000 | – | 383,400 | Form 4 |
| 2025-03-28 | Hu QichaoDirector, CEO & CHAIRMAN, 10% owner | Grant or award A | +2,100,000 | – | 4,881,769 | Form 4 |
| 2025-03-28 | Nealis JingCHIEF FINANCIAL OFFICER | Grant or award A | +950,000 | – | 2,767,977 | Form 4 |
| 2025-03-28 | Pilkington KyleCHIEF LEGAL OFFICER | Grant or award A | +400,000 | – | 896,580 | Form 4 |
| 2025-03-28 | Gan HongCHIEF SCIENCE OFFICER | Grant or award A | +500,000 | – | 1,325,506 | Form 4 |
| 2025-03-28 | Xu KangCHIEF TECHNOLOGY OFFICER | Grant or award A | +250,000 | – | 694,290 | Form 4 |
| 2025-03-28 | Ma JiongDirector | Grant or award A | +160,000 | – | 383,400 | Form 4 |
| 2025-03-17 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −11,056 | 0.44 | 1,817,977 | Form 4 |
| 2025-02-17 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −12,604 | 1.02 | 1,829,033 | Form 4 |
| 2025-01-16 | Nealis JingCHIEF FINANCIAL OFFICER | Option exercise M | +50,000 | 0.16 | 1,985,322 | Form 4 |
| 2025-01-16 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −12,693 | 1.04 | 1,922,629 | Form 4 |
| 2024-12-26 | Nealis JingCHIEF FINANCIAL OFFICER | Option exercise M | +150,000 | 0.16 | 2,085,322 | Form 4 |
| 2024-12-16 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −11,025 | 0.41 | 1,935,322 | Form 4 |
| 2024-11-18 | Nealis JingCHIEF FINANCIAL OFFICER | Shares withheld for tax F | −11,025 | 0.27 | 1,946,347 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.