Skip to main content
ZBIO logo

ZBIO · Zenas BioPharma, Inc.

Track ZBIO — free
$32.31 -0.01 (-0.03%)
Market Cap
$2.06B
Shares
65.18M

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

Short Volume

Date Short Volume Short Exempt Total Volume Short %
2026-08-31 124,978 0 174,038 71.8%
2026-08-28 131,604 100 181,265 72.6%
2026-08-27 198,351 24,366 341,921 58.0%
2026-08-26 180,205 39,112 224,751 80.2%
2026-08-25 188,096 55,625 267,263 70.4%
2026-08-24 96,219 6,595 177,403 54.2%
2026-08-21 222,106 47,193 273,044 81.3%
2026-08-20 263,992 44,757 468,801 56.3%
2026-08-19 572,028 215,195 1,373,929 41.6%
2026-08-18 153,822 10,590 286,317 53.7%
2026-08-17 121,840 13,702 182,263 66.8%
2026-08-14 184,982 30,026 290,024 63.8%
2026-08-13 196,540 4,924 415,258 47.3%
2026-08-12 47,637 0 165,042 28.9%
2026-08-11 179,438 0 555,057 32.3%
2026-08-10 90,491 200 204,274 44.3%
2026-08-07 53,283 1,688 97,727 54.5%
2026-08-06 294,019 0 387,704 75.8%
2026-08-05 87,601 7,865 134,362 65.2%
2026-08-04 58,901 100 121,765 48.4%
2026-08-03 130,952 0 194,731 67.2%
2026-07-31 76,260 0 156,901 48.6%
2026-07-30 135,958 0 285,983 47.5%
2026-07-29 176,997 600 228,324 77.5%
2026-07-28 176,344 3,149 371,695 47.4%
2026-07-27 304,420 3,676 637,575 47.7%
2026-07-24 170,973 0 245,347 69.7%
2026-07-23 117,884 4,528 199,437 59.1%
2026-07-22 199,209 0 463,671 43.0%
2026-07-21 384,466 7,557 671,281 57.3%
2026-07-20 167,277 0 292,836 57.1%
2026-07-17 268,602 0 376,533 71.3%
2026-07-16 396,562 192 501,295 79.1%
2026-07-15 121,471 2,935 169,168 71.8%
2026-07-14 236,405 0 289,974 81.5%
2026-07-13 128,963 0 245,618 52.5%
2026-07-10 165,342 0 454,523 36.4%
2026-07-09 137,808 0 237,809 57.9%
2026-07-08 206,199 0 423,449 48.7%
2026-07-07 289,034 0 528,067 54.7%
2026-07-06 243,151 0 342,030 71.1%
2026-07-02 346,779 0 814,696 42.6%
2026-07-01 850,315 69 1,591,433 53.4%
2026-06-30 198,611 4,953 385,287 51.5%
2026-06-29 374,046 7,771 723,548 51.7%
2026-06-26 242,013 1,000 555,312 43.6%
2026-06-25 443,355 12,272 806,409 55.0%
2026-06-24 281,522 0 476,464 59.1%
2026-06-23 98,384 1 199,238 49.4%
2026-06-22 128,045 0 226,749 56.5%
Showing 1–50 of 64 days
Key facts CIK 1953926 CUSIP 98937L105 13F (30d) 136 filings 131 filers Visit website Investor relations