X0202 SCHEDULE 13G 0002103371 XXXXXXXX LIVE Common Stock, $0.001 par value per share 09/30/2026 0001661059 NextCure, Inc. 65343E207 2850 QUARRY LAKE DRIVE SUITE 280 BALTIMORE MD 21209 Rule 13d-1(b) JP Sailing Capital Ltd D8 0.00 455001.00 0.00 455001.00 455001.00 9.9 FI Jianping Huang F4 0.00 455001.00 0.00 455001.00 455001.00 9.9 IN HC NextCure, Inc. 2850 QUARRY LAKE DRIVE, SUITE 280, BALTIMORE, MARYLAND, 21209. This Schedule 13G is filed jointly by JP Sailing Capital Ltd and Jianping Huang (collectively, the ?Reporting Persons?). JP Sailing Capital Ltd serves as the investment manager of JP Sailing Fund. Jianping Huang, through his control of JP Sailing Capital Ltd and his authority over investment and voting decisions, may be deemed to beneficially own the securities reported herein. The principal business address of JP Sailing Capital Ltd is Room 507, No. 2088 Changzhong Road, Shanghai 200040, People's Republic of China. The principal business address of Jianping Huang is 10/F, YF Life Tower, 33 Lockhart Road, Wan Chai, Hong Kong. JP Sailing Capital Ltd is organized under the laws of the British Virgin Islands. Jianping Huang is a citizen of the People?s Republic of China. N HC FI Non-U.S. investment adviser (investment manager). Each Reporting Person may be deemed to beneficially own 455,001 shares of Common Stock held directly by JP Sailing Fund. JP Sailing Capital Ltd exercises investment and voting authority over these shares as the Fund?s investment manager. Jianping Huang, through his control of JP Sailing Capital Ltd, may be deemed to share investment and voting power over the same shares. The shares reported by the Reporting Persons are the same shares and are not counted twice. 9.9% for each Reporting Person (approximately 9.94% before rounding), based on 4,577,359 shares of Common Stock outstanding as of July 31, 2026, as reported in the Issuer?s Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, filed on August 6, 2026. 0 shares for each Reporting Person. 455,001 shares for each Reporting Person. 0 shares for each Reporting Person. 455,001 shares for each Reporting Person. Y N N JP Sailing Fund, a fund managed by JP Sailing Capital Ltd, has the right to receive dividends from, and proceeds from the sale of, the securities reported herein. Such rights relate to more than five percent of the outstanding Common Stock of NextCure, Inc. N Jianping Huang is reporting as a control person of JP Sailing Capital Ltd, the investment manager of JP Sailing Fund. JP Sailing Capital Ltd is classified under Rule 13d-1(b)(1)(ii)(J) as a non-U.S. investment adviser (investment manager). JP Sailing Fund directly holds the securities reported herein. See Exhibit 2 for the identification and classification of the relevant entity. Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to Non-U.S. investment adviser (investment manager) is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D. JP Sailing Capital Ltd Jianping Huang 10/20/2026 Jianping Huang Jianping Huang 10/20/2026