| Balance Sheets | 2026-03-31 | 2025-12-31 | 2025-09-30 | 2025-06-30 |
|---|---|---|---|---|
| Cash | 375,000 | 1,778,000 | 3,009,000 | 0 |
| Restricted cash | NaN | NaN | NaN | 1,751 |
| Prepaid income taxes | NaN | NaN | NaN | 9,504 |
| Cash held in trust account | NaN | NaN | NaN | 661,012 |
| Prepaid expenses and other current assets | 287,000 | 541,000 | 214,000 | 0 |
| Prepaid franchise tax | NaN | NaN | NaN | 15,600 |
| Digital assets | NaN | 1,445,000 | 972,000 | NaN |
| Total current assets | 662,000 | 3,764,000 | 4,195,000 | 687,867 |
| Property and equipment, net | 13,000 | 8,000 | NaN | NaN |
| Other non-current assets | 41,000 | 3,000 | 55,000 | NaN |
| Cash held in trust account | NaN | NaN | NaN | 1,274,549 |
| Right-of-use asset | 146,000 | NaN | NaN | NaN |
| Total assets | 862,000 | 3,775,000 | 4,250,000 | 1,962,416 |
| Accounts payable | 8,309,000 | 7,345,000 | 6,982,000 | NaN |
| Excise tax payable | 1,953,000 | 1,953,000 | 1,957,000 | 1,952,662 |
| Convertible promissory note related party-Related Party | NaN | NaN | NaN | 10,288,111 |
| Due to redeeming stockholders | NaN | NaN | NaN | 661,012 |
| Accrued expenses and other current liabilities | 6,180,000 | 5,981,000 | 7,848,000 | 1,744,538 |
| Due to related party | 41,000 | 41,000 | 41,000 | 41,180 |
| Convertible notes payable and loans payable at fair value | 7,020,000 | 4,202,000 | 4,281,000 | NaN |
| Securities purchase agreement | NaN | NaN | NaN | 193,878 |
| Promissory notes and other | 710,000 | 1,346,000 | 1,045,000 | NaN |
| Advance from profusa | NaN | NaN | NaN | 1,299,040 |
| Ppp loan | NaN | 1,390,000 | 1,386,000 | NaN |
| Convertible and promissory notes payable to related parties | 4,807,000 | NaN | NaN | NaN |
| Total current liabilities | 29,020,000 | 22,258,000 | 23,540,000 | 16,180,421 |
| Warrant liabilities at fair value | 40,000 | 298,000 | 311,000 | 6,961,700 |
| Loans payable at fair value | NaN | 7,877,000 | 14,359,000 | NaN |
| Total liabilities | 29,060,000 | 30,433,000 | 38,210,000 | 23,142,121 |
| Common stock 0.0001 par value 600,000,000 authorized shares at september 30, 2025 and december 31, 2024, and 41,731,496 and 8,593,991 shares issued and outstanding at september 30, 2025 and december 31, 2024, respectively | NaN | NaN | 4,000 | 519 |
| Additional paid-in capital | 136,039,000 | 134,123,000 | 118,250,000 | NaN |
| Accumulated deficit | -164,237,000 | -160,781,000 | -152,214,000 | -22,510,739 |
| Total stockholders deficit | -28,198,000 | -26,658,000 | -33,960,000 | -22,510,220 |
| Convertible preferred stock-Series APreferred Stock | NaN | 0 | 0 | NaN |
| Convertible preferred stock-Series BPreferred Stock | NaN | 0 | 0 | NaN |
| Convertible preferred stock-Series CPreferred Stock | NaN | 0 | 0 | NaN |
| Common stock subject to possible redemption, 101,777 and 687,519 shares at redemption value of approximately 13.07 and 12.13 at june 30, 2025 and december 31, 2024, respectively | NaN | NaN | NaN | 1,330,515 |
| Total convertible preferred stock | NaN | 0 | 0 | NaN |
| Total liabilities and stockholders deficit | 862,000 | 3,775,000 | 4,250,000 | 1,962,416 |
Profusa, Inc. (PFSA)
Profusa, Inc. (PFSA)