Zenas BioPharma Inc. (ZBIO)
NASDAQ: ZBIO
· Real-Time Price · USD
21.76
0.81 (3.87%)
At close: Oct 03, 2025, 3:59 PM
22.09
1.52%
After-hours: Oct 03, 2025, 05:15 PM EDT
Zenas BioPharma Short Interest
Zenas BioPharma has a total short interest of 5.55M. Its short interest has decreased by -3.63% to the previous month.
Short Interest
5.55M
Short Prior Month
5.76M
% Change MoM
-3.63%
Short % Floating
19.35%
Short % Outstanding
13.18%
Days to Cover
17.89
Short Interest Chart
History
| Date | Short Interest | Short Prior Month | % Change | Day to Cover | Short % Float | Short % Out |
|---|---|---|---|---|---|---|
| Sep 24, 2025 | 5.55M | 5.76M | -3.63% | 17.89 | 19.35% | 13.18% |
| Sep 10, 2025 | 5.76M | 5.27M | 9.39% | 27.55 | 20.08% | 13.68% |
| Aug 26, 2025 | 5.27M | 5.23M | 0.78% | 44.74 | 18.35% | 12.51% |
| Aug 11, 2025 | 5.23M | 5.07M | 3.02% | 41.48 | 18.39% | 12.49% |
| Jul 24, 2025 | 5.07M | 5.1M | -0.55% | 25.03 | 17.85% | 12.12% |
| Jul 10, 2025 | 5.1M | 4.91M | 3.86% | 27.93 | 17.95% | 12.19% |
| Jun 25, 2025 | 4.91M | 4.86M | 1.11% | 18.56 | 17.28% | 11.74% |
| Jun 10, 2025 | 4.86M | 4.92M | -1.21% | 41.72 | 17.09% | 11.61% |
| May 27, 2025 | 4.92M | 4.87M | 0.97% | 33.77 | 17.3% | 11.75% |
| May 09, 2025 | 4.87M | 4.39M | 10.86% | 35.1 | 17.13% | 11.64% |
| Apr 25, 2025 | 4.39M | 3.83M | 14.69% | 15.63 | n/a | n/a |
| Apr 09, 2025 | 3.83M | 3.74M | 2.5% | 17.06 | n/a | n/a |
| Mar 25, 2025 | 3.74M | 3.41M | 9.44% | 25.04 | n/a | n/a |
| Mar 11, 2025 | 3.41M | 3.47M | -1.55% | 27.79 | n/a | n/a |
| Feb 26, 2025 | 3.47M | 3.3M | 5.12% | 21.07 | n/a | n/a |
| Feb 11, 2025 | 3.3M | 3.34M | -1.16% | 14.13 | n/a | n/a |
| Jan 27, 2025 | 3.34M | 3.22M | 3.76% | 17.65 | n/a | n/a |
| Jan 10, 2025 | 3.22M | 2.13M | 50.95% | 5.15 | n/a | n/a |
| Dec 24, 2024 | 2.13M | 1.47M | 44.91% | 5.88 | n/a | n/a |
| Dec 10, 2024 | 1.47M | 799.4K | 83.93% | 3.62 | n/a | n/a |
| Nov 26, 2024 | 799.4K | 635.75K | 25.74% | 9.19 | n/a | n/a |
| Nov 11, 2024 | 635.75K | 408.9K | 55.48% | 3.97 | n/a | n/a |
| Oct 24, 2024 | 408.9K | 230.55K | 77.36% | 2.66 | n/a | n/a |
| Oct 09, 2024 | 230.55K | n/a | 100% | 1.72 | n/a | n/a |