Atara Biotherapeutics, Inc. short interest in 2018

In 2018, Atara Biotherapeutics, Inc.'s disclosed short interest ran from 16.97% of shares outstanding on 12 Jan 2018 to 14.37% on 31 Dec 2018, a change of -2.60 percentage points. The year's high was 21.80% on 13 Apr 2018 and its low 13.16% on 15 Oct 2018, averaging 15.33% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 18.01 days on 31 Jul 2018. Full history: Atara Biotherapeutics, Inc..

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Plain

Short position data for Atara Biotherapeutics, Inc. short interest in 2018: FINRA, compiled by howshorted.com, settlement date 31 Dec 2018. https://howshorted.com/us/company/atra/2018/

Wikipedia

<ref>{{cite web |title=Atara Biotherapeutics, Inc. short interest in 2018 short position data |url=https://howshorted.com/us/company/atra/2018/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2018-12-31 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-atara-biotherapeutics-inc-short-interest-2018-12-31,
  title        = {Atara Biotherapeutics, Inc. short interest in 2018 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/atra/2018/}},
  note         = {Data: FINRA, settlement date 31 Dec 2018; accessed 2026-10-13},
  year         = {2018}
}

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2018 in figures

Start of year: 16.97% (12 Jan 2018)
End of year: 14.37% (31 Dec 2018)
Change: -2.60 pp
High: 21.80% (13 Apr 2018)
Low: 13.16% (15 Oct 2018)
Average: 15.33%
Highest days to cover: 18.01 (31 Jul 2018)
SEC filings marked: 8

Every report in 2018

Atara Biotherapeutics, Inc. short interest in 2018
Settlement	Short interest	Days to cover	Filings since previous
12 Jan 2018	16.97%	3.64
31 Jan 2018	15.74%	3.52
15 Feb 2018	16.40%	4.81
28 Feb 2018	16.30%	7.37	10-K filed, results (8-K)
15 Mar 2018	14.15%	4.57
29 Mar 2018	17.73%	5.85
13 Apr 2018	21.80%	10.92
30 Apr 2018	15.40%	14.39
15 May 2018	15.00%	14.62	10-Q filed, results (8-K)
31 May 2018	15.97%	12.20
15 Jun 2018	15.25%	10.57
29 Jun 2018	16.22%	8.19
13 Jul 2018	15.25%	16.28
31 Jul 2018	14.98%	18.01
15 Aug 2018	14.10%	12.61	10-Q filed, results (8-K)
31 Aug 2018	13.64%	12.01
14 Sep 2018	13.71%	11.00
28 Sep 2018	14.15%	6.86
15 Oct 2018	13.16%	11.84
31 Oct 2018	14.38%	15.28
15 Nov 2018	14.10%	10.60	10-Q filed, results (8-K)
30 Nov 2018	14.34%	11.10
14 Dec 2018	14.83%	12.86
31 Dec 2018	14.37%	13.09

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.