IGM Biosciences, Inc. short interest in 2021

In 2021, IGM Biosciences, Inc.'s disclosed short interest ran from 9.36% of shares outstanding on 30 Apr 2021 to 12.73% on 31 Dec 2021, a change of +3.37 percentage points. The year's high was 12.73% on 31 Dec 2021 and its low 8.99% on 28 May 2021, averaging 10.12% across 17 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 37.64 days on 15 Oct 2021. Full history: IGM Biosciences, Inc..

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Plain

Short position data for IGM Biosciences, Inc. short interest in 2021: FINRA, compiled by howshorted.com, settlement date 31 Dec 2021. https://howshorted.com/us/company/igms-2025/2021/

Wikipedia

<ref>{{cite web |title=IGM Biosciences, Inc. short interest in 2021 short position data |url=https://howshorted.com/us/company/igms-2025/2021/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2021-12-31 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-igm-biosciences-inc-short-interest-in-20-2021-12-31,
  title        = {IGM Biosciences, Inc. short interest in 2021 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/igms-2025/2021/}},
  note         = {Data: FINRA, settlement date 31 Dec 2021; accessed 2026-10-13},
  year         = {2021}
}

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

2021 in figures

Start of year: 9.36% (30 Apr 2021)
End of year: 12.73% (31 Dec 2021)
Change: +3.37 pp
High: 12.73% (31 Dec 2021)
Low: 8.99% (28 May 2021)
Average: 10.12%
Highest days to cover: 37.64 (15 Oct 2021)
SEC filings marked: 9

Every report in 2021

IGM Biosciences, Inc. short interest in 2021
Settlement	Short interest	Days to cover	Filings since previous
30 Apr 2021	9.36%	20.07	results (8-K), 10-K filed, results (8-K)
14 May 2021	9.31%	16.14	10-Q filed, results (8-K)
28 May 2021	8.99%	29.12
15 Jun 2021	9.56%	15.63
30 Jun 2021	9.21%	20.20
15 Jul 2021	9.13%	30.85
30 Jul 2021	9.21%	18.21
13 Aug 2021	10.38%	20.17	10-Q filed, results (8-K)
31 Aug 2021	10.36%	28.95
15 Sep 2021	9.97%	30.06
30 Sep 2021	9.87%	21.62
15 Oct 2021	10.17%	37.64
29 Oct 2021	10.32%	19.22
15 Nov 2021	11.11%	11.53	10-Q filed, results (8-K)
30 Nov 2021	11.23%	18.42
15 Dec 2021	11.14%	7.89
31 Dec 2021	12.73%	13.71

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.