UPB
Upstream Bio, Inc.Company with tickers: UPB
CIK
2022626
CUSIP
91678A107
Shares Outstanding
54,419,986
Website
https://www.upstreambio.com
13F Activity (30d)
59 filings
55 filers
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 % |
|---|---|---|---|---|
| 2026-06-12 | 247,772 | 0 | 431,571 | 57.4% |
| 2026-06-11 | 121,286 | 121 | 297,548 | 40.8% |
| 2026-06-10 | 85,808 | 1,002 | 156,394 | 54.9% |
| 2026-06-09 | 102,289 | 88 | 209,391 | 48.9% |
| 2026-06-08 | 122,432 | 57 | 302,512 | 40.5% |
| 2026-06-05 | 112,866 | 1 | 272,859 | 41.4% |
| 2026-06-04 | 119,725 | 0 | 254,199 | 47.1% |
| 2026-06-03 | 75,291 | 1,582 | 256,756 | 29.3% |
| 2026-06-02 | 113,688 | 12,168 | 245,004 | 46.4% |
| 2026-06-01 | 100,793 | 188 | 237,958 | 42.4% |
| 2026-05-29 | 35,901 | 0 | 203,598 | 17.6% |
| 2026-05-28 | 28,612 | 0 | 125,074 | 22.9% |
| 2026-05-27 | 32,739 | 0 | 160,406 | 20.4% |
| 2026-05-26 | 95,583 | 0 | 216,760 | 44.1% |
| 2026-05-22 | 18,498 | 0 | 94,042 | 19.7% |
| 2026-05-21 | 49,392 | 0 | 275,554 | 17.9% |
| 2026-05-20 | 65,258 | 221 | 239,598 | 27.2% |
| 2026-05-19 | 97,906 | 798 | 361,188 | 27.1% |
| 2026-05-18 | 63,829 | 2,092 | 181,624 | 35.1% |
| 2026-05-15 | 223,210 | 0 | 505,278 | 44.2% |
| 2026-05-14 | 38,820 | 0 | 197,647 | 19.6% |
| 2026-05-13 | 46,972 | 329 | 291,564 | 16.1% |
| 2026-05-12 | 28,086 | 0 | 134,273 | 20.9% |
| 2026-05-11 | 22,820 | 0 | 119,019 | 19.2% |
| 2026-05-08 | 22,672 | 0 | 172,691 | 13.1% |
| 2026-05-07 | 28,016 | 0 | 56,713 | 49.4% |
| 2026-05-06 | 69,217 | 0 | 129,131 | 53.6% |
| 2026-05-05 | 46,038 | 0 | 91,455 | 50.3% |
| 2026-05-04 | 24,172 | 13 | 108,718 | 22.2% |
| 2026-05-01 | 75,576 | 0 | 197,907 | 38.2% |
| 2026-04-30 | 41,860 | 0 | 135,198 | 31.0% |
| 2026-04-29 | 58,212 | 0 | 139,301 | 41.8% |
| 2026-04-28 | 106,110 | 0 | 177,011 | 59.9% |
| 2026-04-27 | 81,056 | 0 | 270,282 | 30.0% |
| 2026-04-24 | 135,507 | 0 | 189,371 | 71.6% |
| 2026-04-23 | 97,693 | 0 | 130,131 | 75.1% |
| 2026-04-22 | 122,945 | 116 | 212,699 | 57.8% |
| 2026-04-21 | 117,240 | 1 | 194,357 | 60.3% |
| 2026-04-20 | 63,500 | 0 | 107,716 | 59.0% |
| 2026-04-17 | 78,096 | 0 | 174,854 | 44.7% |
| 2026-04-16 | 167,889 | 5 | 621,040 | 27.0% |
| 2026-04-15 | 92,145 | 11 | 204,605 | 45.0% |
| 2026-04-14 | 74,200 | 0 | 212,171 | 35.0% |
| 2026-04-13 | 77,224 | 0 | 162,570 | 47.5% |
| 2026-04-10 | 141,999 | 14 | 256,189 | 55.4% |
| 2026-04-09 | 125,024 | 0 | 341,566 | 36.6% |
| 2026-04-08 | 95,898 | 414 | 196,295 | 48.9% |
| 2026-04-07 | 35,059 | 0 | 87,814 | 39.9% |
| 2026-04-06 | 52,373 | 1 | 135,918 | 38.5% |
Showing 1–49 of 49 days