How shorted is SELLAS Life Sciences Group, Inc. right now?

30.61% of SELLAS Life Sciences Group, Inc.'s (SLS) shares outstanding were reported short for settlement date 31 Jul 2026, per FINRA's consolidated short interest report.

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.

Which funds are short?

US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.

How shorted is SELLAS Life Sciences Group, Inc.?

More shorted than 99% of the 2,877 ranked US companies

30.61%

of shares outstanding reported short · settlement date 31 Jul 2026

vs previous report: −0.17
5 reports (~10 weeks): −1.17

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<p>Source: FINRA data compiled by <a href="https://howshorted.com/us/company/sls/">howshorted.com</a></p>

Cite this page

Short position data for SELLAS Life Sciences Group, Inc.: FINRA, compiled by howshorted.com, settlement date 31 Jul 2026. https://howshorted.com/us/company/sls/

History

Settlement date	Short %	Change
31 Jul 2026	30.61%	−0.17
15 Jul 2026	30.78%	−4.47
30 Jun 2026	35.25%	−0.03
15 Jun 2026	35.28%	+1.31
29 May 2026	33.97%	+2.19
15 May 2026	31.78%	−0.04
30 Apr 2026	31.82%	+0.28
15 Apr 2026	31.54%	+1.73
31 Mar 2026	29.81%	−2.34
13 Mar 2026	32.15%	−2.34
27 Feb 2026	34.49%	+2.16
13 Feb 2026	32.33%	+3.31
30 Jan 2026	29.02%	−0.50
15 Jan 2026	29.52%	−5.18
31 Dec 2025	34.70%	+6.29
15 Dec 2025	28.41%	+5.06
28 Nov 2025	23.35%	+1.03
14 Nov 2025	22.32%	−5.19
31 Oct 2025	27.51%	+3.68
15 Oct 2025	23.83%	+1.94
30 Sep 2025	21.89%	+2.05
15 Sep 2025	19.84%	−8.03
29 Aug 2025	27.87%	+0.18
15 Aug 2025	27.69%	−1.38
31 Jul 2025	29.07%	–

Frequently asked questions

How shorted is SELLAS Life Sciences Group, Inc. right now?: 30.61% of SELLAS Life Sciences Group, Inc.'s (SLS) shares outstanding were reported short for settlement date 31 Jul 2026, per FINRA's consolidated short interest report.
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.
Which funds are short?: US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.