X0609 4 2026-08-03 false 0001745648 Apnimed, Inc. APMD 0001572378 Miller Lawrence G. false APNIMED, INC. 39 JOHN F. KENNEDY STREET, 4TH FLOOR CAMBRIDGE MA 02138 true false false false false Class A Common Stock 2026-08-03 4 D false 92431 D 0 I By Lawrence G. Miller Irrevocable Family Trust Common Stock 2026-08-03 4 A false 92431 A 92431 I By Lawrence G. Miller Irrevocable Family Trust Common Stock 2026-08-03 4 C false 10845 A 103276 I By Lawrence G. Miller Irrevocable Family Trust Class A Common Stock 2026-08-03 4 D false 88954 D 0 I By Kathleen W. Miller Irrevocable Trust Common Stock 2026-08-03 4 A false 88954 A 88954 I By Kathleen W. Miller Irrevocable Trust Class A Common Stock 2026-08-03 4 D false 88954 D 0 I By James S. Miller Irrevocable Trust Common Stock 2026-08-03 4 A false 88954 A 88954 I By James S. Miller Irrevocable Trust Class A Common Stock 2026-08-03 4 D false 88954 D 0 I By David G. Miller Irrevocable Trust Common Stock 2026-08-03 4 A false 88954 A 88954 I By David G. Miller Irrevocable Trust Class A Common Stock 2026-08-03 4 D false 88954 D 0 I By Ellen K. Williams Irrevocable Family Trust Common Stock 2026-08-03 4 A false 88954 A 88954 I By Ellen K. Williams Irrevocable Family Trust Series A Preferred Stock 2026-08-03 4 C false 10845 0 D Common Stock 10845 0 I By Lawrence G. Miller Irrevocable Family Trust Stock Option (Right to Buy) 1.00 2026-08-03 4 D false 688042 0 D 2029-01-29 Class A Common Stock 688042 0 D Stock Option (Right to Buy) 1.00 2026-08-03 4 A false 688042 0 A 2029-01-29 Common Stock 688042 688042 D Stock Option (Right to Buy) 1.00 2026-08-03 4 D false 98843 0 D 2030-01-28 Class A Common Stock 98843 0 D Stock Option (Right to Buy) 1.00 2026-08-03 4 A false 98843 0 A 2030-01-28 Common Stock 98843 98843 D Stock Option (Right to Buy) 1.06 2026-08-03 4 D false 302541 0 D 2030-03-31 Class A Common Stock 302541 0 D Stock Option (Right to Buy) 1.06 2026-08-03 4 A false 302541 0 A 2030-03-31 Common Stock 302541 302541 D Stock Option (Right to Buy) 2.74 2026-08-03 4 D false 333580 0 D 2032-06-14 Class A Common Stock 333580 0 D Stock Option (Right to Buy) 2.74 2026-08-03 4 A false 333580 0 A 2032-06-14 Common Stock 333580 333580 D Stock Option (Right to Buy) 4.00 2026-08-03 4 D false 333580 0 D 2032-12-22 Class A Common Stock 333580 0 D Stock Option (Right to Buy) 4.00 2026-08-03 4 A false 333580 0 A 2032-12-22 Common Stock 333580 333580 D Stock Option (Right to Buy) 4.87 2026-08-03 4 D false 333580 0 D 2034-03-13 Class A Common Stock 333580 0 D Stock Option (Right to Buy) 4.87 2026-08-03 4 A false 333580 0 A 2034-03-13 Common Stock 333580 333580 D Stock Option (Right to Buy) 8.88 2026-08-03 4 D false 59303 0 D 2035-07-14 Class A Common Stock 59303 0 D Stock Option (Right to Buy) 8.88 2026-08-03 4 A false 59303 0 A 2035-07-14 Common Stock 59303 59303 D Stock Option (Right to Buy) 8.88 2026-08-03 4 D false 25574 0 D 2035-09-19 Class A Common Stock 25574 0 D Stock Option (Right to Buy) 8.88 2026-08-03 4 A false 25574 0 A 2035-09-19 Common Stock 25574 25574 D Stock Option (Right to Buy) 8.15 2026-08-03 4 D false 74128 0 D 2036-06-01 Class A Common Stock 74128 0 D Stock Option (Right to Buy) 8.15 2026-08-03 4 A false 74128 0 A 2036-06-01 Common Stock 74128 74128 D Pursuant to a reclassification exempt under Rule 16b-7 and Rule 16b-3, each share of Class A Common Stock was reclassified into one share of Common Stock. The Reporting Person disclaims beneficial ownership of such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of his pecuniary interest therein, if any. This report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 of the Exchange Act or for any other purpose. Immediately prior to the Issuer's initial public offering, each share of Series A Preferred Stock automatically converted on a one-for-one basis into shares of the Issuer's Class A Common Stock. The Series A Preferred Stock has no expiration date. 100% of the shares subject to the option are fully vested. 25% of the shares subject to such option vest and become exercisable when the Reporting Person completes twelve months of continuous service after December 22, 2022, and the remainder of the shares vest and become exercisable in substantially equal quarterly installments for a period of 36 months thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date. 25% of the shares subject to such option vest and become exercisable when the Reporting Person completes twelve months of continuous service after December 21, 2023, and the remainder of the shares vest and become exercisable in substantially equal quarterly installments for a period of 36 months thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date. 25% of the shares subject to such option vest and become exercisable when the Reporting Person completes twelve months of continuous service after September 17, 2025, and the remainder of the shares vest and become exercisable in substantially equal quarterly installments for a period of 36 months thereafter, subject to the Reporting Person's continuous service to the Issuer on each such date. The shares subject to such option vest and become exercisable in substantially equal monthly installments for a period of 24 months after June 1, 2026, subject to the Reporting Person's continuous service to the Issuer on each such date. /s/Kevin R. Lind, Attorney-in-Fact 2026-08-03