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HowShorted

How shorted is Sana Biotechnology, Inc.? SANA

#352most shorted US stockof 3,805 ranked stocks, more shorted than 90%

13.82%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.06
5 reports (~10 weeks)
−0.09
days to cover
12.22
Aggregate net short position time series for Sana Biotechnology, 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 Sana Biotechnology, 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
10 Aug 202615.15% 31 Jul 202614.22% 14 Aug 2026−0.93
11 May 202614.77% 30 Apr 202613.82% 15 May 2026−0.95
3 Mar 202613.45% 27 Feb 202614.08% 13 Mar 2026+0.63
6 Nov 202512.01% 31 Oct 202512.43% 14 Nov 2025+0.42
11 Aug 202513.68% 31 Jul 202514.03% 15 Aug 2025+0.35
6 Aug 202513.68% 31 Jul 202514.03% 15 Aug 2025+0.35
8 May 202517.81% 30 Apr 202518.37% 15 May 2025+0.56
17 Mar 202517.73% 14 Mar 202517.89% 31 Mar 2025+0.16

Fails to deliver

The SEC's fails-to-deliver figure for SANA: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Latest balance
41,484
14 Sep 2026
Highest in window
636,457
29 Jun 2026
Days with a balance
114
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Sana Biotechnology, Inc. fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 636K shares.

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Sector: Healthcare · By year: 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202613.82%−0.06
31 Aug 202613.88%−0.34
14 Aug 202614.22%−0.93
31 Jul 202615.15%+0.87
15 Jul 202614.28%+0.37
30 Jun 202613.91%−0.71
15 Jun 202614.62%+0.49
29 May 202614.13%+0.31
15 May 202613.82%−0.95
30 Apr 202614.77%−0.58
15 Apr 202615.35%+0.57
31 Mar 202614.78%+0.70
13 Mar 202614.08%+0.63
27 Feb 202613.45%−0.54
13 Feb 202613.99%+0.14
30 Jan 202613.85%−0.08
15 Jan 202613.93%+0.18
31 Dec 202513.75%−0.43
15 Dec 202514.18%−0.21
28 Nov 202514.39%+1.96
14 Nov 202512.43%+0.42
31 Oct 202512.01%−0.86
15 Oct 202512.87%−1.18
30 Sep 202514.05%+1.93
15 Sep 202512.12%−0.58
29 Aug 202512.70%−1.33
15 Aug 202514.03%+0.35
31 Jul 202513.68%−1.81
15 Jul 202515.49%−1.19
30 Jun 202516.68%−2.68
13 Jun 202519.36%−0.31
30 May 202519.67%+1.30
15 May 202518.37%+0.56
30 Apr 202517.81%−0.24
15 Apr 202518.05%+0.16
31 Mar 202517.89%+0.16
14 Mar 202517.73%−1.08
28 Feb 202518.81%−1.05
14 Feb 202519.86%−0.34
31 Jan 202520.20%−2.32
15 Jan 202522.52%+5.90
31 Dec 202416.62%+0.13
13 Dec 202416.49%+0.75
29 Nov 202415.74%−0.10
15 Nov 202415.84%+0.48
31 Oct 202415.36%+0.40
15 Oct 202414.96%+0.79
30 Sep 202414.17%+0.16
13 Sep 202414.01%−0.29
30 Aug 202414.30%+0.05
15 Aug 202414.25%+0.85
31 Jul 202413.40%+0.81
15 Jul 202412.59%+0.85
28 Jun 202411.74%+0.72
14 Jun 202411.02%−0.28
31 May 202411.30%−0.21
15 May 202411.51%−1.50
30 Apr 202413.01%−0.55
15 Apr 202413.56%+0.30
28 Mar 202413.26%+0.74
15 Mar 202412.52%+1.84
29 Feb 202410.68%−0.52
15 Feb 202411.20%+0.33
31 Jan 202410.87%+0.64
12 Jan 202410.23%−0.96
29 Dec 202311.19%+0.42
15 Dec 202310.77%+0.21
30 Nov 202310.56%−0.40
15 Nov 202310.96%−0.39
31 Oct 202311.35%−1.75
13 Oct 202313.10%+0.68
29 Sep 202312.42%+0.96
15 Sep 202311.46%−0.43
31 Aug 202311.89%+0.07
15 Aug 202311.82%−0.11
31 Jul 202311.93%−2.40
14 Jul 202314.33%−0.21
30 Jun 202314.54%+0.18
15 Jun 202314.36%−0.42
31 May 202314.78%+0.02
15 May 202314.76%+0.01
28 Apr 202314.75%−0.69
14 Apr 202315.44%−0.42
31 Mar 202315.86%+0.18
15 Mar 202315.68%+1.08
28 Feb 202314.60%+0.45
15 Feb 202314.15%+0.52
31 Jan 202313.63%−0.29
13 Jan 202313.92%+0.44
30 Dec 202213.48%+0.22
15 Dec 202213.26%+0.32
30 Nov 202212.94%−0.13
15 Nov 202213.07%−0.27
31 Oct 202213.34%+0.05
14 Oct 202213.29%−0.09
30 Sep 202213.38%−0.24
15 Sep 202213.62%+0.22
31 Aug 202213.40%+0.43
15 Aug 202212.97%+0.24
29 Jul 202212.73%+0.94
15 Jul 202211.79%+0.63
30 Jun 202211.16%+1.12
15 Jun 202210.04%+0.05
31 May 20229.99%+0.16
13 May 20229.83%+0.33
29 Apr 20229.50%+0.14
14 Apr 20229.36%+0.69
31 Mar 20228.67%+1.45
15 Mar 20227.22%+0.08
28 Feb 20227.14%+0.27
15 Feb 20226.87%+0.92
31 Jan 20225.95%+0.93
14 Jan 20225.02%−0.17
31 Dec 20215.19%+1.00
15 Dec 20214.19%+0.29
30 Nov 20213.90%−0.33
15 Nov 20214.23%−0.10
29 Oct 20214.33%−0.13
15 Oct 20214.46%−0.01
30 Sep 20214.47%+1.08
15 Sep 20213.39%−0.06
31 Aug 20213.45%+0.07
13 Aug 20213.38%−0.14
30 Jul 20213.52%+0.24
15 Jul 20213.28%+0.30
30 Jun 20212.98%+1.12
15 Jun 20211.86%+0.07
28 May 20211.79%−0.01
14 May 20211.80%–

Newest first. Scroll inside the table for earlier dates, back to 14 May 2021.

Frequently asked questions

How shorted is Sana Biotechnology, Inc. right now?
13.82% of Sana Biotechnology, Inc.'s (SANA) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 352nd most shorted US stock, out of 3,805 we rank.
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 SANA'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 SANA's days to cover?
12.22 days for settlement date 15 Sep 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.