Regeneron Pharmaceuticals, Inc. short interest
Short interest in Regeneron Pharmaceuticals, Inc. was 2.6 million shares at the 31 August 2026 settlement, up 6.5% on the previous settlement, with 3.85 days to cover at an average daily volume of 662,864 shares, as reported to FINRA.
| Settlement | Shares short | Change | Average daily volume | Days to cover |
|---|---|---|---|---|
| 31 August 2026 | 2,552,029 | +6.5% | 662,864 | 3.85 |
| 14 August 2026 | 2,396,152 | -29.2% | 760,654 | 3.15 |
| 31 July 2026 | 3,385,841 | -3.3% | 858,662 | 3.94 |
| 15 July 2026 | 3,501,203 | +0.2% | 741,224 | 4.72 |
| 30 June 2026 | 3,494,420 | +5.8% | 1,199,840 | 2.91 |
| 15 June 2026 | 3,304,329 | +10.1% | 968,690 | 3.41 |
| 29 May 2026 | 3,001,968 | +8.0% | 1,532,432 | 1.96 |
| 15 May 2026 | 2,780,809 | -15.0% | 764,041 | 3.64 |
| 30 April 2026 | 3,270,341 | +15.1% | 805,112 | 4.06 |
| 15 April 2026 | 2,841,780 | +11.5% | 651,908 | 4.36 |
| 31 March 2026 | 2,548,311 | +4.0% | 604,079 | 4.22 |
| 13 March 2026 | 2,451,498 | +7.2% | 586,546 | 4.18 |
FINRA publishes consolidated short interest twice a month, about ten days after each settlement. Days to cover is shares short over average daily volume. Short interest as a share of the float is not shown: the float is not in the public record.
Source
FINRA equity short interest data, the public dataset.
The same record on your computer
GreekSoup is also a free program for your own computer. It reads these same filings for the names you follow, refreshed as they land, with no account. One pasted line installs it.