Skip to content
HowShorted

How shorted was CATALYST PHARMACEUTICALS, INC.? CPRX

CATALYST PHARMACEUTICALS, INC. left the US market in 2026. This page is a frozen archive of its reported short interest, ending 30 Jun 2026. The ticker CPRX no longer refers to this company and may since have been reassigned.
6.41%
of shares outstanding reported short · settlement date 30 Jun 2026
vs previous report
−0.09
5 reports (~10 weeks)
−0.50
days to cover
3.29
Aggregate net short position time series for CATALYST PHARMACEUTICALS, 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 CATALYST PHARMACEUTICALS, INC. days to cover
Embed this chart

Paste this snippet to embed the interactive chart. It updates with each FINRA report and keeps the source attribution. Preview

Share on XRedditLinkedIn
Cite this page
Plain
Wikipedia
BibTeX

Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
30 Jun 20266.41%−0.09
15 Jun 20266.50%−0.19
29 May 20266.69%+1.04
15 May 20265.65%−0.76
30 Apr 20266.41%−0.50
15 Apr 20266.91%−0.52
31 Mar 20267.43%−0.46
13 Mar 20267.89%+0.33
27 Feb 20267.56%−0.24
13 Feb 20267.80%+0.60
30 Jan 20267.20%+0.08
15 Jan 20267.12%+0.25
31 Dec 20256.87%+0.45
15 Dec 20256.42%−0.04
28 Nov 20256.46%−0.45
14 Nov 20256.91%+0.44
31 Oct 20256.47%−0.41
15 Oct 20256.88%−0.99
30 Sep 20257.87%+0.80
15 Sep 20257.07%+0.59
29 Aug 20256.48%−0.82
15 Aug 20257.30%−0.26
31 Jul 20257.56%+0.25
15 Jul 20257.31%+0.61
30 Jun 20256.70%+0.36
13 Jun 20256.34%+0.32
30 May 20256.02%−0.07
15 May 20256.09%−0.63
30 Apr 20256.72%+0.19
15 Apr 20256.53%−0.12
31 Mar 20256.65%+0.59
14 Mar 20256.06%+0.84
28 Feb 20255.22%+0.43
14 Feb 20254.79%+0.30
31 Jan 20254.49%−1.07
15 Jan 20255.56%−0.04
31 Dec 20245.60%+0.62
13 Dec 20244.98%−0.13
29 Nov 20245.11%+0.35
15 Nov 20244.76%−0.31
31 Oct 20245.07%+0.05
15 Oct 20245.02%+0.17
30 Sep 20244.85%−0.14
13 Sep 20244.99%+0.13
30 Aug 20244.86%+0.60
15 Aug 20244.26%+0.17
31 Jul 20244.09%−0.45
15 Jul 20244.54%+0.04
28 Jun 20244.50%−1.28
14 Jun 20245.78%−0.39
31 May 20246.17%−0.61
15 May 20246.78%+0.24
30 Apr 20246.54%+1.22
15 Apr 20245.32%+0.18
28 Mar 20245.14%+0.20
15 Mar 20244.94%−0.55
29 Feb 20245.49%+0.17
15 Feb 20245.32%+0.93
31 Jan 20244.39%−1.20
12 Jan 20245.59%+0.31
29 Dec 20235.28%−1.45
15 Dec 20236.73%+0.29
30 Nov 20236.44%+0.20
15 Nov 20236.24%+0.22
31 Oct 20236.02%+0.13
13 Oct 20235.89%−0.07
29 Sep 20235.96%−1.49
15 Sep 20237.45%+0.73
31 Aug 20236.72%+0.39
15 Aug 20236.33%+0.11
31 Jul 20236.22%−0.56
14 Jul 20236.78%−0.69
30 Jun 20237.47%−0.48
15 Jun 20237.95%−0.70
31 May 20238.65%−0.31
15 May 20238.96%−1.60
28 Apr 202310.56%+0.03
14 Apr 202310.53%−0.36
31 Mar 202310.89%+1.49
15 Mar 20239.40%−0.57
28 Feb 20239.97%+0.61
15 Feb 20239.36%+1.07
31 Jan 20238.29%−1.50
13 Jan 20239.79%−0.31
30 Dec 202210.10%+2.83
15 Dec 20227.27%−0.32
30 Nov 20227.59%+1.18
15 Nov 20226.41%−1.43
31 Oct 20227.84%−0.64
14 Oct 20228.48%−0.33
30 Sep 20228.81%+3.98
15 Sep 20224.83%−1.22
31 Aug 20226.05%−0.56
15 Aug 20226.61%−0.25
29 Jul 20226.86%−1.74
15 Jul 20228.60%−1.32
30 Jun 20229.92%+0.41
15 Jun 20229.51%+0.95
31 May 20228.56%+1.31
13 May 20227.25%+2.28
29 Apr 20224.97%+0.47
14 Apr 20224.50%+0.05
31 Mar 20224.45%−0.17
15 Mar 20224.62%−0.50
28 Feb 20225.12%+0.14
15 Feb 20224.98%+0.76
31 Jan 20224.22%+0.51
14 Jan 20223.71%+0.21
31 Dec 20213.50%−0.61
15 Dec 20214.11%+0.16
30 Nov 20213.95%−0.09
15 Nov 20214.04%−0.09
29 Oct 20214.13%−0.15
15 Oct 20214.28%−0.33
30 Sep 20214.61%−0.46
15 Sep 20215.07%−0.04
31 Aug 20215.11%−0.40
13 Aug 20215.51%−0.07
30 Jul 20215.58%+0.10
15 Jul 20215.48%−0.74
30 Jun 20216.22%−2.68
15 Jun 20218.90%−0.34
28 May 20219.24%−1.03
14 May 202110.27%−0.21
30 Apr 202110.48%−0.80
15 Apr 202111.28%−0.63
31 Mar 202111.91%+2.71
15 Mar 20219.20%+1.10
26 Feb 20218.10%−0.78
12 Feb 20218.88%−0.63
29 Jan 20219.51%−0.27
15 Jan 20219.78%−0.02
31 Dec 20209.80%−2.05
15 Dec 202011.85%−0.52
30 Nov 202012.37%−0.60
13 Nov 202012.97%−0.01
30 Oct 202012.98%+0.61
15 Oct 202012.37%−0.81
30 Sep 202013.18%+1.93
15 Sep 202011.25%−0.90
31 Aug 202012.15%+0.23
14 Aug 202011.92%+0.78
31 Jul 202011.14%−0.13
15 Jul 202011.27%−0.42
30 Jun 202011.69%−1.74
15 Jun 202013.43%+1.05
29 May 202012.38%−0.25
15 May 202012.63%+0.82
30 Apr 202011.81%−1.74
15 Apr 202013.55%+0.19
31 Mar 202013.36%−0.21
13 Mar 202013.57%+1.51
28 Feb 202012.06%+0.13
14 Feb 202011.93%−0.39
31 Jan 202012.32%+1.34
15 Jan 202010.98%−0.50
31 Dec 201911.48%+2.84
13 Dec 20198.64%−0.54
29 Nov 20199.18%−0.23
15 Nov 20199.41%+0.97
31 Oct 20198.44%+0.26
15 Oct 20198.18%+0.13
30 Sep 20198.05%+1.77
13 Sep 20196.28%+0.23
30 Aug 20196.05%−0.86
15 Aug 20196.91%+0.87
31 Jul 20196.04%−0.47
15 Jul 20196.51%+0.18
28 Jun 20196.33%+0.38
14 Jun 20195.95%+0.53
31 May 20195.42%−0.07
15 May 20195.49%−0.53
30 Apr 20196.02%−0.87
15 Apr 20196.89%+0.42
29 Mar 20196.47%−1.92
15 Mar 20198.39%+1.46
28 Feb 20196.93%+0.22
15 Feb 20196.71%−0.11
31 Jan 20196.82%+0.42
15 Jan 20196.40%+2.09
31 Dec 20184.31%−0.41
14 Dec 20184.72%+1.48
30 Nov 20183.24%+0.79
15 Nov 20182.45%+0.71
31 Oct 20181.74%+0.09
15 Oct 20181.65%−0.03
28 Sep 20181.68%+0.21
14 Sep 20181.47%+0.19
31 Aug 20181.28%−0.31
15 Aug 20181.59%+0.04
31 Jul 20181.55%−0.15
13 Jul 20181.70%−0.19
29 Jun 20181.89%+0.84
15 Jun 20181.05%+0.07
31 May 20180.98%−0.11
15 May 20181.09%−0.20
30 Apr 20181.29%−0.15
13 Apr 20181.44%−0.19
29 Mar 20181.63%+0.36
15 Mar 20181.27%−0.66
28 Feb 20181.93%+0.29
15 Feb 20181.64%+0.36
31 Jan 20181.28%−0.24
12 Jan 20181.52%−0.01
29 Dec 20171.53%–

Newest first. Scroll inside the table for earlier dates, back to 29 Dec 2017.

Frequently asked questions

How shorted was CATALYST PHARMACEUTICALS, INC.?
CATALYST PHARMACEUTICALS, INC. left the US market in 2026. Its final reported figure was 6.41% of shares outstanding for settlement date 30 Jun 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 CPRX'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 CPRX's days to cover?
3.29 days for settlement date 30 Jun 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.