PFSA
Profusa, Inc. Common Stock
stockNASDAQ
At CloseOct 2, 2026 3:59:30 PM EDT
1.6959USD-9.310%(-0.1741)359,557
Pre-marketOct 5, 2026 8:06:30 AM EDT
1.68USD-0.938%(-0.02)
After-hoursOct 2, 2026 4:52:30 PM EDT
1.70USD+0.242%(+0.00)
As of 2026-09-15, there were 31,545 shares short with a short interest of 2.93%.
PFSA Short Interest - Official
Short Interest
PFSA Short Position Change - Official
Short Position Change
PFSA Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 2.93 | 31,545 | 1.00 | -8,073 | -20.38 | 605,726 | 1,075,620 |
| 2026-08-31 | 3.68 | 39,618 | 1.00 | +28,739 | +264.16 | 605,726 | 1,075,620 |
| 2026-08-14 | 1.01 | 10,879 | 1.00 | -4,087 | -27.31 | 63,364 | 1,075,620 |
| 2026-07-31 | 1.32 | 14,967 | 1.00 | +1,669 | +12.55 | 132,500 | 1,136,593 |
| 2026-07-15 | 1.17 | 13,298 | 1.00 | +10,948 | +465.88 | 132,500 | 1,136,593 |
| 2026-06-30 | 268.29 | 2,350 | 1.00 | +1,115 | +90.34 | 46,603 | 876 |
| 2026-06-15 | 140.95 | 1,235 | 1.00 | -1,454 | -54.08 | 46,603 | 876 |
| 2026-05-15 | 306.93 | 2,688 | 1.10 | -3,963 | -59.58 | 44,103 | 876 |
| 2026-04-30 | 10.12 | 6,651 | 1.00 | +6,275 | +1,666.67 | 44,103 | 65,693 |
| 2026-04-15 | 0.57 | 376 | 1.00 | -56 | -12.99 | 13,594 | 65,693 |
| 2026-03-31 | 0.66 | 433 | 1.00 | -182 | -29.55 | 13,594 | 65,693 |
| 2026-03-13 | 0.94 | 614 | 1.00 | -3,540 | -85.22 | 13,594 | 65,693 |
| 2026-02-27 | 6.32 | 4,155 | 1.00 | +3,432 | +475.03 | 13,594 | 65,693 |
| 2026-02-13 | 1.10 | 723 | 1.00 | +114 | +18.77 | 12,322 | 65,693 |
| 2026-01-30 | 69.45 | 608 | 1.00 | +206 | +51.35 | 11,522 | 876 |
| 2026-01-15 | 45.89 | 402 | 1.00 | -1,114 | -73.49 | 11,522 | 876 |
| 2025-12-31 | 173.09 | 1,516 | 1.00 | +1,216 | +404.38 | 11,522 | 876 |
| 2025-12-15 | 34.32 | 301 | 1.00 | +20 | +7.22 | 8,757 | 876 |
| 2025-11-28 | 32.01 | 280 | 1.00 | +3 | +0.96 | 8,757 | 876 |
| 2025-11-14 | 31.70 | 278 | 1.00 | -125 | -31.05 | 5,568 | 876 |
| 2025-10-31 | 45.98 | 403 | 1.00 | +267 | +196.92 | 5,568 | 876 |
| 2025-10-15 | 15.49 | 136 | 1.00 | -3 | -1.92 | 5,568 | 876 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.