Atara Biotherapeutics, Inc. short interest in 2023

In 2023, Atara Biotherapeutics, Inc.'s disclosed short interest ran from 14.36% of shares outstanding on 13 Jan 2023 to 9.01% on 29 Dec 2023, a change of -5.35 percentage points. The year's high was 20.81% on 31 Mar 2023 and its low 8.01% on 15 Nov 2023, averaging 13.45% across 24 twice-monthly settlement dates. FINRA's days-to-cover figure peaked at 19.79 days on 28 Feb 2023. Full history: Atara Biotherapeutics, Inc..

Cite this page

Plain

Short position data for Atara Biotherapeutics, Inc. short interest in 2023: FINRA, compiled by howshorted.com, settlement date 29 Dec 2023. https://howshorted.com/us/company/atra/2023/

Wikipedia

<ref>{{cite web |title=Atara Biotherapeutics, Inc. short interest in 2023 short position data |url=https://howshorted.com/us/company/atra/2023/ |website=HowShorted |publisher=howshorted.com (data: FINRA) |date=2023-12-29 |access-date=2026-10-13}}</ref>

BibTeX

@misc{howshorted-atara-biotherapeutics-inc-short-interest-2023-12-29,
  title        = {Atara Biotherapeutics, Inc. short interest in 2023 short position data},
  author       = {{HowShorted}},
  howpublished = {\url{https://howshorted.com/us/company/atra/2023/}},
  note         = {Data: FINRA, settlement date 29 Dec 2023; accessed 2026-10-13},
  year         = {2023}
}

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2023 in figures

Start of year: 14.36% (13 Jan 2023)
End of year: 9.01% (29 Dec 2023)
Change: -5.35 pp
High: 20.81% (31 Mar 2023)
Low: 8.01% (15 Nov 2023)
Average: 13.45%
Highest days to cover: 19.79 (28 Feb 2023)
SEC filings marked: 8

Every report in 2023

Atara Biotherapeutics, Inc. short interest in 2023
Settlement	Short interest	Days to cover	Filings since previous
13 Jan 2023	14.36%	11.92
31 Jan 2023	14.79%	13.58
15 Feb 2023	14.60%	14.44	10-K filed, results (8-K)
28 Feb 2023	14.67%	19.79
15 Mar 2023	17.41%	11.50
31 Mar 2023	20.81%	13.32
14 Apr 2023	20.03%	16.28
28 Apr 2023	18.55%	14.00
15 May 2023	14.47%	7.81	10-Q filed, results (8-K)
31 May 2023	12.88%	6.43
15 Jun 2023	13.48%	5.74
30 Jun 2023	11.94%	4.03
14 Jul 2023	12.88%	9.39
31 Jul 2023	13.22%	12.41
15 Aug 2023	12.06%	9.52	10-Q filed, results (8-K)
31 Aug 2023	11.40%	8.98
15 Sep 2023	11.54%	17.39
29 Sep 2023	11.41%	8.65
13 Oct 2023	12.14%	9.24
31 Oct 2023	12.25%	12.30
15 Nov 2023	8.01%	1.00	10-Q filed, results (8-K)
30 Nov 2023	10.90%	1.54
15 Dec 2023	9.94%	4.24
29 Dec 2023	9.01%	1.85

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.