Iridium Communications Inc. short interest in 2021

In 2021, Iridium Communications Inc.'s disclosed short interest ran from 4.07% of shares outstanding on 15 Jan 2021 to 4.84% on 31 Dec 2021, a change of +0.77 percentage points. The year's high was 5.46% on 14 May 2021 and its low 2.74% on 26 Feb 2021, averaging 4.56% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 13.10 days on 15 Jul 2021. Full history: Iridium Communications Inc..

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Plain

Short position data for Iridium Communications Inc. short interest in 2021: FINRA, compiled by howshorted.com, settlement date 31 Dec 2021. https://howshorted.com/us/company/irdm/2021/

Wikipedia

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

BibTeX

@misc{howshorted-iridium-communications-inc-short-interes-2021-12-31,
  title        = {Iridium Communications Inc. short interest in 2021 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/irdm/2021/}},
  note         = {Data: FINRA, settlement date 31 Dec 2021; accessed 2026-10-13},
  year         = {2021}
}

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2021 in figures

Start of year: 4.07% (15 Jan 2021)
End of year: 4.84% (31 Dec 2021)
Change: +0.77 pp
High: 5.46% (14 May 2021)
Low: 2.74% (26 Feb 2021)
Average: 4.56%
Highest days to cover: 13.10 (15 Jul 2021)
SEC filings marked: 8

Every report in 2021

Iridium Communications Inc. short interest in 2021
Settlement	Short interest	Days to cover	Filings since previous
15 Jan 2021	4.07%	7.87
29 Jan 2021	3.56%	4.34
12 Feb 2021	2.94%	1.04	10-K filed, results (8-K)
26 Feb 2021	2.74%	2.43
15 Mar 2021	3.58%	3.37
31 Mar 2021	3.72%	5.10
15 Apr 2021	3.56%	7.00
30 Apr 2021	3.90%	5.90	10-Q filed, results (8-K)
14 May 2021	5.46%	6.83
28 May 2021	5.45%	9.51
15 Jun 2021	5.08%	9.57
30 Jun 2021	4.74%	6.41
15 Jul 2021	4.82%	13.10
30 Jul 2021	4.90%	9.13	10-Q filed, results (8-K)
13 Aug 2021	5.03%	13.07
31 Aug 2021	5.08%	8.94
15 Sep 2021	5.10%	9.01
30 Sep 2021	4.95%	6.44
15 Oct 2021	5.42%	10.23
29 Oct 2021	5.19%	10.95	10-Q filed, results (8-K)
15 Nov 2021	5.13%	12.14
30 Nov 2021	5.43%	12.59
15 Dec 2021	4.82%	8.06
31 Dec 2021	4.84%	7.24

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.