Kyle Pilkington - 09 Mar 2026 Form 4 Insider Report for SES AI Corp (SES)

Signature
/s/ Kyle Pilkington
Issuer symbol
SES
Transactions as of
09 Mar 2026
Net transactions value
-$30,000
Form type
4
Filing time
11 Mar 2026, 19:00:05 UTC
Previous filing
10 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Pilkington Kyle CHIEF LEGAL OFFICER C/O SES AI CORPORATION, 35 CABOT ROAD, WOBURN /s/ Kyle Pilkington 11 Mar 2026 0001937313

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SES Class A Common Stock Sale $30,000 -25,000 -3.1% $1.20 780,203 09 Mar 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sale of Class A Common Stock of the issuer was executed pursuant to a Rule 10b5-1 plan entered into by the Reporting Person on November 12, 2025.
F2 Includes 568,785 shares of Class A Common Stock underlying RSUs, which are subject to forfeiture until they vest.