STRO
Sutro Biopharma, Inc.
stockNASDAQ
Market OpenOct 5, 2026 3:07:59 PM EDT
15.35USD0.000%(0.00)102,958
12.67Bid15.35Ask2.68SpreadPre-marketOct 5, 2026 8:31:30 AM EDT
14.66USD-4.495%(-0.69)
As of 2026-09-15, there were 2,076,152 shares short with a short interest of 30.40%.
STRO Short Interest - Official
Short Interest
STRO Short Position Change - Official
Short Position Change
STRO 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 | 30.40 | 2,076,152 | 5.99 | +266,670 | +14.74 | 16,581,171 | 6,829,763 |
| 2026-08-31 | 26.49 | 1,809,482 | 8.53 | -46,212 | -2.49 | 16,581,171 | 6,829,763 |
| 2026-08-14 | 27.17 | 1,855,694 | 5.39 | +110,851 | +6.35 | 16,581,171 | 6,829,763 |
| 2026-07-31 | 25.55 | 1,744,843 | 6.35 | +92,019 | +5.57 | 16,570,439 | 6,829,763 |
| 2026-07-15 | 24.20 | 1,652,824 | 4.46 | +290,869 | +21.36 | 16,570,439 | 6,829,763 |
| 2026-06-30 | 19.94 | 1,361,955 | 2.31 | +439,767 | +47.69 | 16,570,439 | 6,829,763 |
| 2026-06-15 | 13.50 | 922,188 | 3.90 | -270,968 | -22.71 | 16,570,439 | 6,829,763 |
| 2026-05-15 | 19.89 | 1,193,156 | 5.61 | +216,048 | +22.11 | 16,570,439 | 5,997,388 |
| 2026-04-30 | 16.01 | 977,108 | 3.91 | +228,409 | +30.51 | 16,567,887 | 6,102,583 |
| 2026-04-15 | 12.27 | 748,699 | 2.88 | +108,985 | +17.04 | 16,567,238 | 6,102,583 |
| 2026-03-31 | 10.48 | 639,714 | 2.79 | +107,100 | +20.11 | 16,567,238 | 6,102,583 |
| 2026-03-13 | 8.73 | 532,614 | 3.17 | +15,226 | +2.94 | 16,387,775 | 6,102,583 |
| 2026-02-27 | 8.48 | 517,388 | 5.15 | -127,686 | -19.79 | 16,387,775 | 6,102,583 |
| 2026-02-13 | 10.57 | 645,074 | 4.43 | +53,773 | +9.09 | 16,387,775 | 6,102,583 |
| 2026-01-30 | 9.69 | 591,301 | 5.03 | +63,068 | +11.94 | 8,519,392 | 6,102,583 |
| 2026-01-15 | 8.66 | 528,233 | 4.03 | +123,456 | +30.50 | 8,519,392 | 6,102,583 |
| 2025-12-31 | 6.63 | 404,777 | 3.72 | -155,487 | -27.75 | 8,519,392 | 6,102,583 |
| 2025-12-15 | 9.18 | 560,264 | 4.01 | +162,521 | +40.86 | 8,519,392 | 6,102,498 |
| 2025-11-28 | 6.52 | 397,744 | 6.34 | +45,582 | +12.94 | 8,513,529 | 6,102,498 |
| 2025-11-14 | 5.80 | 352,161 | 4.29 | +12,838 | +3.78 | 8,513,529 | 6,071,338 |
| 2025-10-31 | 5.61 | 339,324 | 1.47 | +88,665 | +35.37 | 8,477,418 | 6,044,145 |
| 2025-10-15 | 3.73 | 250,658 | 4.41 | +2,172 | +0.87 | 8,477,418 | 6,713,945 |
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.