Apellis Pharmaceuticals, Inc. short interest in 2021

In 2021, Apellis Pharmaceuticals, Inc.'s disclosed short interest ran from 11.81% of shares outstanding on 15 Jan 2021 to 7.66% on 31 Dec 2021, a change of -4.15 percentage points. The year's high was 11.81% on 15 Jan 2021 and its low 5.81% on 13 Aug 2021, averaging 8.17% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 18.65 days on 26 Feb 2021. Full history: Apellis Pharmaceuticals, Inc..

Cite this page

Plain

Short position data for Apellis Pharmaceuticals, Inc. short interest in 2021: FINRA, compiled by howshorted.com, settlement date 31 Dec 2021. https://howshorted.com/us/company/apls-2026/2021/

Wikipedia

<ref>{{cite web |title=Apellis Pharmaceuticals, Inc. short interest in 2021 short position data |url=https://howshorted.com/us/company/apls-2026/2021/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2021-12-31 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-apellis-pharmaceuticals-inc-short-intere-2021-12-31,
  title        = {Apellis Pharmaceuticals, Inc. short interest in 2021 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/apls-2026/2021/}},
  note         = {Data: FINRA, settlement date 31 Dec 2021; accessed 2026-10-13},
  year         = {2021}
}

By year: 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026

2021 in figures

Start of year: 11.81% (15 Jan 2021)
End of year: 7.66% (31 Dec 2021)
Change: -4.15 pp
High: 11.81% (15 Jan 2021)
Low: 5.81% (13 Aug 2021)
Average: 8.17%
Highest days to cover: 18.65 (26 Feb 2021)
SEC filings marked: 4

Every report in 2021

Apellis Pharmaceuticals, Inc. short interest in 2021
Settlement	Short interest	Days to cover	Filings since previous
15 Jan 2021	11.81%	15.65
29 Jan 2021	10.11%	11.04
12 Feb 2021	10.23%	14.98
26 Feb 2021	10.71%	18.65	10-K filed
15 Mar 2021	9.29%	13.54
31 Mar 2021	10.15%	10.56
15 Apr 2021	10.62%	14.13
30 Apr 2021	9.59%	13.57	10-Q filed
14 May 2021	8.57%	12.10
28 May 2021	6.97%	4.20
15 Jun 2021	7.42%	10.08
30 Jun 2021	7.38%	7.86
15 Jul 2021	7.74%	5.69
30 Jul 2021	6.10%	6.17
13 Aug 2021	5.81%	6.17	10-Q filed
31 Aug 2021	5.94%	5.64
15 Sep 2021	6.57%	1.18
30 Sep 2021	7.33%	4.07
15 Oct 2021	6.58%	6.48
29 Oct 2021	6.84%	7.43
15 Nov 2021	6.75%	4.02	10-Q filed
30 Nov 2021	7.58%	4.05
15 Dec 2021	8.27%	8.63
31 Dec 2021	7.66%	9.06

About this data

US short interest data: FINRA (finra.org), shown as reported shares short divided by SEC-reported shares outstanding for each settlement date. FINRA® is a registered trademark of the Financial Industry Regulatory Authority, Inc. This site is not affiliated with or endorsed by FINRA or the SEC; displayed for personal reference, bulk redistribution is not permitted (see terms). Nothing here is investment advice. Method: methodology.