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How shorted was AtaiBeckley Inc.? ATAI

AtaiBeckley Inc. left the US market in 2026. This page is a frozen archive of its reported short interest, ending 15 Jul 2026. The ticker ATAI no longer refers to this company and may since have been reassigned.
10.40%
of shares outstanding reported short · settlement date 15 Jul 2026
vs previous report
+2.07
5 reports (~10 weeks)
+4.12
days to cover
4.02
Aggregate net short position time series for AtaiBeckley Inc.

Markers along the chart's base: ▲ results announced (an 8-K reporting results was filed) ▲ quarterly or annual report filed. Dates are SEC filing dates; hover a point to see events since the previous settlement.

Days to cover

FINRA's own figure: reported shares short divided by the stock's average daily trading volume, published alongside each settlement. It expresses the short position in days of typical trading rather than as a percentage of the company; the two can move differently.

Aggregate net short position time series for AtaiBeckley Inc. days to cover

Short interest around results

For each results announcement (an 8-K reporting results, by its SEC filing date), the FINRA settlement before it and the first one after. Settlements fall twice a month, so the two figures can sit up to a month apart and much else changes in between: this shows what was reported, not why.

Reported short interest before and after each results announcement
Results filedSettlement beforeSettlement afterChange
12 Nov 20256.48% 31 Oct 20254.30% 14 Nov 2025−2.18
20 Oct 20257.52% 15 Oct 20256.48% 31 Oct 2025−1.04
14 Aug 20257.99% 31 Jul 20257.15% 15 Aug 2025−0.84
14 May 20256.15% 30 Apr 20256.45% 15 May 2025+0.30
17 Mar 20255.25% 14 Mar 20255.89% 31 Mar 2025+0.64
13 Nov 20245.62% 31 Oct 20245.88% 15 Nov 2024+0.26
13 Aug 20245.29% 31 Jul 20245.70% 15 Aug 2024+0.41
15 May 20243.80% 30 Apr 20244.15% 31 May 2024+0.35
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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
15 Jul 202610.40%+2.07
30 Jun 20268.33%+1.85
15 Jun 20266.48%+0.48
29 May 20266.00%−0.42
15 May 20266.42%+0.14
30 Apr 20266.28%−0.93
15 Apr 20267.21%+0.43
31 Mar 20266.78%+2.00
13 Mar 20264.78%+0.03
27 Feb 20264.75%+0.65
13 Feb 20264.10%−0.16
30 Jan 20264.26%+0.24
15 Jan 20264.02%+0.35
31 Dec 20253.67%−0.40
15 Dec 20254.07%+0.32
28 Nov 20253.75%−0.55
14 Nov 20254.30%−2.18
31 Oct 20256.48%−1.04
15 Oct 20257.52%0.00
30 Sep 20257.52%−0.78
15 Sep 20258.30%+0.27
29 Aug 20258.03%+0.88
15 Aug 20257.15%−0.84
31 Jul 20257.99%−0.17
15 Jul 20258.16%+3.02
30 Jun 20255.14%−0.39
13 Jun 20255.53%−0.29
30 May 20255.82%−0.63
15 May 20256.45%+0.30
30 Apr 20256.15%+0.03
15 Apr 20256.12%+0.23
31 Mar 20255.89%+0.64
14 Mar 20255.25%−1.28
28 Feb 20256.53%−0.12
14 Feb 20256.65%−0.09
31 Jan 20256.74%−0.14
15 Jan 20256.88%+0.48
31 Dec 20246.40%+0.08
13 Dec 20246.32%+0.24
29 Nov 20246.08%+0.20
15 Nov 20245.88%+0.26
31 Oct 20245.62%−0.10
15 Oct 20245.72%+0.07
30 Sep 20245.65%−0.09
13 Sep 20245.74%+0.51
30 Aug 20245.23%−0.47
15 Aug 20245.70%+0.41
31 Jul 20245.29%−0.30
15 Jul 20245.59%+0.58
28 Jun 20245.01%+0.24
14 Jun 20244.77%+0.62
31 May 20244.15%+0.47
15 May 20243.68%−0.12
30 Apr 20243.80%+0.25
15 Apr 20243.55%+0.21
28 Mar 20243.34%+0.20
15 Mar 20243.14%+1.01
29 Feb 20242.13%−0.80
15 Feb 20242.93%+0.07
31 Jan 20242.86%+0.21
12 Jan 20242.65%+0.04
29 Dec 20232.61%−0.11
15 Dec 20232.72%−0.20
30 Nov 20232.92%−0.15
15 Nov 20233.07%−0.32
31 Oct 20233.39%+0.58
13 Oct 20232.81%−0.02
29 Sep 20232.83%+0.09
15 Sep 20232.74%+0.26
31 Aug 20232.48%−0.01
15 Aug 20232.49%+0.03
31 Jul 20232.46%0.00
14 Jul 20232.46%−0.26
30 Jun 20232.72%−0.19
15 Jun 20232.91%−0.09
31 May 20233.00%−0.08
15 May 20233.08%−0.11
28 Apr 20233.19%+0.18
14 Apr 20233.01%+0.10
31 Mar 20232.91%+0.36
15 Mar 20232.55%+0.10
28 Feb 20232.45%+0.12
15 Feb 20232.33%−0.38
31 Jan 20232.71%−0.89
13 Jan 20233.60%+0.06
30 Dec 20223.54%+0.24
15 Dec 20223.30%+0.28
30 Nov 20223.02%+0.15
15 Nov 20222.87%−0.51
31 Oct 20223.38%−0.50
14 Oct 20223.88%−0.08
30 Sep 20223.96%−0.05
15 Sep 20224.01%+0.04
31 Aug 20223.97%+0.14
15 Aug 20223.83%+0.32
29 Jul 20223.51%+0.31
15 Jul 20223.20%−0.50
30 Jun 20223.70%+0.98
15 Jun 20222.72%+0.22
31 May 20222.50%+0.04
13 May 20222.46%+0.44
29 Apr 20222.02%+0.20
14 Apr 20221.82%+0.07
31 Mar 20221.75%−0.23
15 Mar 20221.98%+0.14
28 Feb 20221.84%−0.18
15 Feb 20222.02%−0.43
31 Jan 20222.45%+0.30
14 Jan 20222.15%−0.51
31 Dec 20212.66%+0.89
15 Dec 20211.77%+0.36
30 Nov 20211.41%+0.14
15 Nov 20211.27%−0.06
29 Oct 20211.33%+0.01
15 Oct 20211.32%+0.03
30 Sep 20211.29%+0.18
15 Sep 20211.11%+0.10
31 Aug 20211.01%+0.13
13 Aug 20210.88%–

Newest first. Scroll inside the table for earlier dates, back to 13 Aug 2021.

Frequently asked questions

How shorted was AtaiBeckley Inc.?
AtaiBeckley Inc. left the US market in 2026. Its final reported figure was 10.40% of shares outstanding for settlement date 15 Jul 2026, per FINRA's consolidated short interest report; this page preserves its full history.
What does this number include?
FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
Why does it only update twice a month?
US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
Is this ATAI's short float?
No. This is short interest as a percentage of shares outstanding, the count in the company's SEC filings. "Short float" divides the same FINRA short count by the public float, which excludes closely held shares, so it comes out higher for the same company. We publish no float estimates: the float is not a regulatory figure.
What is ATAI's days to cover?
4.02 days for settlement date 15 Jul 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume. It is published in the same FINRA file and shown verbatim; we hold no volume data ourselves.
Which funds are short?
US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.