Palantir Technologies Inc.

During the quarter ended December 31, 2025, the following directors and officers, as defined in Rule 16a-1(f), adopted a “Rule 10b5-1 trading arrangement” as defined in Regulation S-K Item 408, as follows:

On November 14, 2025, STS Holdings II LLC, a stockholder whose shares may be deemed to be beneficially owned by Peter Thiel (the Chairman of our Board of Directors), adopted a Rule 10b5-1 arrangement intended to satisfy the affirmative defense conditions of Rule 10b5-1(c), subject to the satisfaction of certain price and/or other conditions, with 2,000,000 shares being the total of the maximum number of all shares subject to any condition when summed across all possible conditions. The duration of the trading arrangement is until March 12, 2027, or earlier, upon the completion or expiration of all transactions subject to the trading arrangement.

On November 21, 2025, Alexander Karp, our Chief Executive Officer and a member of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the potential sales of shares of our Class A common stock through various transactions upon the occurrence and satisfaction of certain price and/or other conditions, with 360,000 shares being the total of the maximum number of all shares subject to any condition when summed across all possible conditions. The trading arrangement is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The duration of the trading arrangement is until November 25, 2026, or earlier, upon the completion or expiration of all transactions subject to the trading arrangement.

On December 11, 2025, Alexander Moore, amember of our Board of Directors, adopted a Rule 10b5-1 trading arrangement providing for the potential sales of shares of our Class A common stock through various transactions upon the occurrence and satisfaction of certain price and/or other conditions, with 192,000 shares being the total of the maximum number of all shares subject to any condition when summed across all possible conditions. The trading arrangement is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). The duration of the trading arrangement is until March 12, 2027 or earlier, upon the completion or expiration of all transactions subject to the trading arrangement.

During the quarter ended December 31, 2025, no other directors or officers, as defined in Rule 16a-1(f), adopted orterminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement,” each as defined in Regulation S-K Item 408.