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HowShorted

How shorted was Kezar Life Sciences, Inc.? KZR

Kezar Life Sciences, Inc. left the US market in 2026. This page is a frozen archive of its reported short interest, ending 30 Apr 2026. The ticker KZR no longer refers to this company and may since have been reassigned.
2.15%
of shares outstanding reported short · settlement date 30 Apr 2026
vs previous report
+0.09
5 reports (~10 weeks)
−0.36
days to cover
2.28
Aggregate net short position time series for Kezar Life Sciences, 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 Kezar Life Sciences, 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 20254.30% 31 Oct 20252.97% 14 Nov 2025−1.33
16 Oct 202510.43% 15 Oct 20254.30% 31 Oct 2025−6.13
13 May 20250.94% 30 Apr 20250.74% 15 May 2025−0.20
25 Mar 20250.83% 14 Mar 20250.82% 31 Mar 2025−0.01
10 Jan 20251.17% 31 Dec 20241.01% 15 Jan 2025−0.16
12 Nov 20241.64% 15 Oct 20241.15% 15 Nov 2024−0.49
17 Oct 20241.64% 15 Oct 20241.15% 15 Nov 2024−0.49
13 Aug 20241.43% 31 Jul 20241.17% 15 Aug 2024−0.26
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Sector: Healthcare

History

Full reported short interest history
Settlement dateShort %Change
30 Apr 20262.15%+0.09
15 Apr 20262.06%−0.67
31 Mar 20262.73%+0.10
13 Mar 20262.63%+0.23
27 Feb 20262.40%−0.11
13 Feb 20262.51%−0.22
30 Jan 20262.73%+0.35
15 Jan 20262.38%−0.03
31 Dec 20252.41%−1.02
15 Dec 20253.43%+0.07
28 Nov 20253.36%+0.39
14 Nov 20252.97%−1.33
31 Oct 20254.30%−6.13
15 Oct 202510.43%+0.07
30 Sep 202510.36%−0.05
15 Sep 202510.41%−0.51
29 Aug 202510.92%+0.89
15 Aug 202510.03%+9.31
13 Jun 20250.72%+0.05
30 May 20250.67%−0.07
15 May 20250.74%−0.20
30 Apr 20250.94%+0.01
15 Apr 20250.93%+0.11
31 Mar 20250.82%−0.01
14 Mar 20250.83%−0.82
14 Feb 20251.65%+0.58
31 Jan 20251.07%+0.06
15 Jan 20251.01%−0.16
31 Dec 20241.17%+0.52
13 Dec 20240.65%−0.77
29 Nov 20241.42%+0.27
15 Nov 20241.15%−0.49
15 Oct 20241.64%+0.29
30 Sep 20241.35%+0.16
13 Sep 20241.19%−0.12
30 Aug 20241.31%+0.14
15 Aug 20241.17%−0.26
31 Jul 20241.43%−0.15
15 Jul 20241.58%−2.33
28 Jun 20243.91%−0.47
14 Jun 20244.38%−0.42
31 May 20244.80%−0.29
15 May 20245.09%−0.62
30 Apr 20245.71%+0.46
15 Apr 20245.25%+0.35
28 Mar 20244.90%+0.26
15 Mar 20244.64%+0.26
29 Feb 20244.38%+0.25
15 Feb 20244.13%−0.07
31 Jan 20244.20%+0.09
12 Jan 20244.11%+0.37
29 Dec 20233.74%+0.02
15 Dec 20233.72%+0.27
30 Nov 20233.45%−0.33
15 Nov 20233.78%+0.76
31 Oct 20233.02%−1.01
13 Oct 20234.03%−0.03
29 Sep 20234.06%+0.05
15 Sep 20234.01%+0.71
31 Aug 20233.30%−0.09
15 Aug 20233.39%−0.15
31 Jul 20233.54%−0.24
14 Jul 20233.78%−0.14
30 Jun 20233.92%−0.54
15 Jun 20234.46%+0.41
31 May 20234.05%−0.10
15 May 20234.15%−0.72
28 Apr 20234.87%−0.32
14 Apr 20235.19%−2.30
31 Mar 20237.49%+0.59
15 Mar 20236.90%+0.59
28 Feb 20236.31%+0.19
15 Feb 20236.12%−0.35
31 Jan 20236.47%+0.81
13 Jan 20235.66%−3.32
30 Dec 20228.98%−0.42
15 Dec 20229.40%−0.04
30 Nov 20229.44%−0.21
15 Nov 20229.65%−0.76
31 Oct 202210.41%+1.02
14 Oct 20229.39%−1.41
30 Sep 202210.80%+0.36
15 Sep 202210.44%+0.23
31 Aug 202210.21%+0.05
15 Aug 202210.16%+0.31
29 Jul 20229.85%+0.39
15 Jul 20229.46%−0.75
30 Jun 202210.21%+2.29
15 Jun 20227.92%+0.33
31 May 20227.59%+1.25
13 May 20226.34%−1.11
29 Apr 20227.45%+0.90
14 Apr 20226.55%−0.47
31 Mar 20227.02%+0.40
15 Mar 20226.62%−0.91
28 Feb 20227.53%+0.36
15 Feb 20227.17%−0.49
31 Jan 20227.66%+0.13
14 Jan 20227.53%+0.36
31 Dec 20217.17%+0.52
15 Dec 20216.65%−0.66
30 Nov 20217.31%+3.66
15 Nov 20213.65%−1.10
29 Oct 20214.75%+0.52
15 Oct 20214.23%−0.08
30 Sep 20214.31%+0.44
15 Sep 20213.87%+0.30
31 Aug 20213.57%−1.52
13 Aug 20215.09%−0.24
30 Jul 20215.33%−0.07
15 Jul 20215.40%−0.05
30 Jun 20215.45%−0.38
15 Jun 20215.83%−0.31
28 May 20216.14%−0.35
14 May 20216.49%−0.55
30 Apr 20217.04%0.00
15 Apr 20217.04%+2.80
31 Mar 20214.24%+0.17
15 Mar 20214.07%+0.27
26 Feb 20213.80%+0.17
12 Feb 20213.63%+1.09
29 Jan 20212.54%−0.05
15 Jan 20212.59%−1.49
31 Dec 20204.08%+0.60
15 Dec 20203.48%−0.22
30 Nov 20203.70%−0.23
13 Nov 20203.93%+0.23
30 Oct 20203.70%+0.38
15 Oct 20203.32%+0.09
30 Sep 20203.23%+0.23
15 Sep 20203.00%+0.27
31 Aug 20202.73%−0.05
14 Aug 20202.78%+1.42
15 Jun 20201.36%−1.03
15 May 20202.39%−0.15
30 Apr 20202.54%−0.03
15 Apr 20202.57%−0.03
31 Mar 20202.60%+0.12
13 Mar 20202.48%−2.07
28 Feb 20204.55%−0.07
14 Feb 20204.62%−0.19
31 Jan 20204.81%+0.35
15 Jan 20204.46%+0.10
31 Dec 20194.36%+0.18
13 Dec 20194.18%−0.09
29 Nov 20194.27%+0.07
15 Nov 20194.20%−0.80
31 Oct 20195.00%−0.05
15 Oct 20195.05%–

Newest first. Scroll inside the table for earlier dates, back to 15 Oct 2019.

Frequently asked questions

How shorted was Kezar Life Sciences, Inc.?
Kezar Life Sciences, Inc. left the US market in 2026. Its final reported figure was 2.15% of shares outstanding for settlement date 30 Apr 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 KZR'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 KZR's days to cover?
2.28 days for settlement date 30 Apr 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.