How shorted was GreenLight Biosciences Holdings, PBC? GRNA
- vs previous report
- +0.62
- 5 reports (~10 weeks)
- +0.60
- days to cover
- 8.06
Markers along the chart's base: â–² results announced (an 8-K reporting results was filed) â–² quarterly or annual report filed. Dates are SEC filing dates; hover a point to see events since the previous settlement.
Days to cover
FINRA's own figure: reported shares short divided by the stock's average daily trading volume, published alongside each settlement. It expresses the short position in days of typical trading rather than as a percentage of the company; the two can move differently.
Short interest around results
For each results announcement (an 8-K reporting results, by its SEC filing date), the FINRA settlement before it and the first one after. Settlements fall twice a month, so the two figures can sit up to a month apart and much else changes in between: this shows what was reported, not why.
| Results filed | Settlement before | Settlement after | Change |
|---|---|---|---|
| 11 May 2023 | 2.45% 28 Apr 2023 | 2.17% 15 May 2023 | −0.28 |
| 28 Mar 2023 | 1.91% 15 Mar 2023 | 2.24% 31 Mar 2023 | +0.33 |
| 9 Nov 2022 | 1.63% 31 Oct 2022 | 1.20% 15 Nov 2022 | −0.43 |
Cite this page
Sector: Healthcare
History
| Settlement date | Short % | Change |
|---|---|---|
| 15 Jun 2023 | 2.84% | +0.62 |
| 31 May 2023 | 2.22% | +0.05 |
| 15 May 2023 | 2.17% | −0.28 |
| 28 Apr 2023 | 2.45% | −0.04 |
| 14 Apr 2023 | 2.49% | +0.25 |
| 31 Mar 2023 | 2.24% | +0.33 |
| 15 Mar 2023 | 1.91% | +0.14 |
| 28 Feb 2023 | 1.77% | +0.05 |
| 15 Feb 2023 | 1.72% | 0.00 |
| 31 Jan 2023 | 1.72% | +0.21 |
| 13 Jan 2023 | 1.51% | +0.14 |
| 30 Dec 2022 | 1.37% | +0.29 |
| 15 Dec 2022 | 1.08% | +0.04 |
| 30 Nov 2022 | 1.04% | −0.16 |
| 15 Nov 2022 | 1.20% | −0.43 |
| 31 Oct 2022 | 1.63% | −0.19 |
| 14 Oct 2022 | 1.82% | −0.12 |
| 30 Sep 2022 | 1.94% | +0.51 |
| 15 Sep 2022 | 1.43% | −0.23 |
| 31 Aug 2022 | 1.66% | +0.02 |
| 15 Aug 2022 | 1.64% | +0.18 |
| 29 Jul 2022 | 1.46% | +0.10 |
| 15 Jul 2022 | 1.36% | +0.04 |
| 30 Jun 2022 | 1.32% | −0.31 |
| 15 Jun 2022 | 1.63% | −0.19 |
| 31 May 2022 | 1.82% | +0.07 |
| 13 May 2022 | 1.75% | +0.10 |
| 29 Apr 2022 | 1.65% | +0.09 |
| 14 Apr 2022 | 1.56% | – |
Newest first. Scroll inside the table for earlier dates, back to 14 Apr 2022.
Frequently asked questions
- How shorted was GreenLight Biosciences Holdings, PBC?
- GreenLight Biosciences Holdings, PBC left the US market in 2023. Its final reported figure was 2.84% of shares outstanding for settlement date 15 Jun 2023, per FINRA's consolidated short interest report; this page preserves its full history.
- What does this number include?
- FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
- Why does it only update twice a month?
- US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
- Is this GRNA's short float?
- No. This is short interest as a percentage of shares outstanding, the count in the company's SEC filings. "Short float" divides the same FINRA short count by the public float, which excludes closely held shares, so it comes out higher for the same company. We publish no float estimates: the float is not a regulatory figure.
- What is GRNA's days to cover?
- 8.06 days for settlement date 15 Jun 2023: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume. It is published in the same FINRA file and shown verbatim; we hold no volume data ourselves.
- Which funds are short?
- US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.