X0202 SCHEDULE 13G 0002052113 XXXXXXXX LIVE Common Stock 03/31/2026 0002086587 York Space Systems Inc. 987084100 6060 S WILLOW DR. GREENWOOD VILLAGE CO 80111 Rule 13d-1(d) BlackRock Portfolio Management LLC b DE 17753925.00 0.00 17846934.00 0.00 17846934.00 14.0 HC York Space Systems Inc. 6060 S WILLOW DR., GREENWOOD VILLAGE, COLORADO, 80111. BlackRock Portfolio Management LLC In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release. BlackRock Portfolio Management LLC, 50 Hudson Yards New York, NY 10001 See Item 4 of Cover Page N HC 17,846,934 14.0% 17,753,925 0 17,846,934 0 Y N N Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of York Space Systems Inc.. No one person's interest in the common stock of York Space Systems Inc. is more than five percent of the total outstanding common shares. N See Exhibit 99 Y Y Y Exhibit 24: Power of Attorney Exhibit 99: Item 7 BlackRock Portfolio Management LLC Spencer Fleming 04/29/2026