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HowShorted

How shorted was Apellis Pharmaceuticals, Inc.? APLS

Apellis Pharmaceuticals, Inc. left the US market in 2026. This page is a frozen archive of its reported short interest, ending 30 Apr 2026. The ticker APLS no longer refers to this company and may since have been reassigned.
8.40%
of shares outstanding reported short · settlement date 30 Apr 2026
vs previous report
−2.85
5 reports (~10 weeks)
−11.11
days to cover
3.06
Aggregate net short position time series for Apellis Pharmaceuticals, Inc.

Markers along the chart's base: ▲ results announced (an 8-K reporting results was filed) ▲ 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.

Aggregate net short position time series for Apellis Pharmaceuticals, Inc. days to cover

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.

Reported short interest before and after each results announcement
Results filedSettlement beforeSettlement afterChange
12 Jan 202612.74% 31 Dec 202514.31% 15 Jan 2026+1.57
13 Jan 202517.27% 31 Dec 202414.50% 15 Jan 2025−2.77
27 Feb 20248.67% 15 Feb 20248.49% 29 Feb 2024−0.18
8 Jan 20249.86% 29 Dec 202310.16% 12 Jan 2024+0.30
5 Oct 202314.25% 29 Sep 202315.79% 13 Oct 2023+1.54
31 Jul 20238.14% 14 Jul 202311.68% 15 Aug 2023+3.54
10 Jan 20227.66% 31 Dec 20217.15% 14 Jan 2022−0.51
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Sector: Healthcare · By year: 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
30 Apr 20268.40%−2.85
15 Apr 202611.25%−8.61
31 Mar 202619.86%+1.74
13 Mar 202618.12%−0.01
27 Feb 202618.13%−1.38
13 Feb 202619.51%+2.72
30 Jan 202616.79%+2.48
15 Jan 202614.31%+1.57
31 Dec 202512.74%−0.89
15 Dec 202513.63%+0.91
28 Nov 202512.72%−0.20
14 Nov 202512.92%+0.90
31 Oct 202512.02%−2.28
15 Oct 202514.30%−2.37
30 Sep 202516.67%−0.56
15 Sep 202517.23%+0.97
29 Aug 202516.26%+0.21
15 Aug 202516.05%−1.44
31 Jul 202517.49%+4.37
15 Jul 202513.12%−7.69
30 Jun 202520.81%+0.81
13 Jun 202520.00%+0.08
30 May 202519.92%−1.76
15 May 202521.68%−1.21
30 Apr 202522.89%+1.32
15 Apr 202521.57%+3.47
31 Mar 202518.10%+2.57
14 Mar 202515.53%−1.20
28 Feb 202516.73%+2.79
14 Feb 202513.94%+0.23
31 Jan 202513.71%−0.79
15 Jan 202514.50%−2.77
31 Dec 202417.27%+1.18
13 Dec 202416.09%−1.44
29 Nov 202417.53%−1.11
15 Nov 202418.64%+1.93
31 Oct 202416.71%−0.61
15 Oct 202417.32%+4.79
30 Sep 202412.53%−0.02
13 Sep 202412.55%−0.73
30 Aug 202413.28%−0.08
15 Aug 202413.36%+0.29
31 Jul 202413.07%+0.57
15 Jul 202412.50%+0.29
28 Jun 202412.21%+0.76
14 Jun 202411.45%+0.64
31 May 202410.81%+0.44
15 May 202410.37%−0.08
30 Apr 202410.45%+1.45
15 Apr 20249.00%+0.19
28 Mar 20248.81%−0.13
15 Mar 20248.94%+0.45
29 Feb 20248.49%−0.18
15 Feb 20248.67%−0.33
31 Jan 20249.00%−1.16
12 Jan 202410.16%+0.30
29 Dec 20239.86%−1.09
15 Dec 202310.95%−1.93
30 Nov 202312.88%−0.74
15 Nov 202313.62%−0.08
31 Oct 202313.70%−2.09
13 Oct 202315.79%+1.54
29 Sep 202314.25%+2.69
15 Sep 202311.56%+1.11
31 Aug 202310.45%−1.23
15 Aug 202311.68%+3.52
31 Jul 20238.16%+0.02
14 Jul 20238.14%−0.10
30 Jun 20238.24%−1.60
15 Jun 20239.84%+0.09
31 May 20239.75%+0.30
15 May 20239.45%+0.15
28 Apr 20239.30%−1.85
14 Apr 202311.15%+0.04
31 Mar 202311.11%+0.12
15 Mar 202310.99%+1.28
28 Feb 20239.71%+1.52
15 Feb 20238.19%−0.05
31 Jan 20238.24%−0.43
13 Jan 20238.67%+0.37
30 Dec 20228.30%−0.79
15 Dec 20229.09%+0.17
30 Nov 20228.92%−0.47
15 Nov 20229.39%+0.53
31 Oct 20228.86%+0.87
14 Oct 20227.99%−0.95
30 Sep 20228.94%+0.66
15 Sep 20228.28%+0.66
31 Aug 20227.62%+0.35
15 Aug 20227.27%−1.96
29 Jul 20229.23%+0.44
15 Jul 20228.79%−0.41
30 Jun 20229.20%+0.61
15 Jun 20228.59%+0.17
31 May 20228.42%−0.17
13 May 20228.59%+0.31
29 Apr 20228.28%−0.71
14 Apr 20228.99%+0.64
31 Mar 20228.35%+1.03
15 Mar 20227.32%−0.55
28 Feb 20227.87%−0.11
15 Feb 20227.98%−0.38
31 Jan 20228.36%+1.21
14 Jan 20227.15%−0.51
31 Dec 20217.66%−0.61
15 Dec 20218.27%+0.69
30 Nov 20217.58%+0.83
15 Nov 20216.75%−0.09
29 Oct 20216.84%+0.26
15 Oct 20216.58%−0.75
30 Sep 20217.33%+0.76
15 Sep 20216.57%+0.63
31 Aug 20215.94%+0.13
13 Aug 20215.81%−0.29
30 Jul 20216.10%−1.64
15 Jul 20217.74%+0.36
30 Jun 20217.38%−0.04
15 Jun 20217.42%+0.45
28 May 20216.97%−1.60
14 May 20218.57%−1.02
30 Apr 20219.59%−1.03
15 Apr 202110.62%+0.47
31 Mar 202110.15%+0.86
15 Mar 20219.29%−1.42
26 Feb 202110.71%+0.48
12 Feb 202110.23%+0.12
29 Jan 202110.11%−1.70
15 Jan 202111.81%−0.12
31 Dec 202011.93%+0.79
15 Dec 202011.14%−0.80
30 Nov 202011.94%−1.18
13 Nov 202013.12%−0.34
30 Oct 202013.46%−0.62
15 Oct 202014.08%−0.33
30 Sep 202014.41%+0.52
15 Sep 202013.89%+0.26
31 Aug 202013.63%+0.13
14 Aug 202013.50%+0.09
31 Jul 202013.41%+0.09
15 Jul 202013.32%–

Newest first. Scroll inside the table for earlier dates, back to 15 Jul 2020.

Frequently asked questions

How shorted was Apellis Pharmaceuticals, Inc.?
Apellis Pharmaceuticals, Inc. left the US market in 2026. Its final reported figure was 8.40% of shares outstanding for settlement date 30 Apr 2026, 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 APLS'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 APLS's days to cover?
3.06 days for settlement date 30 Apr 2026: 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.