How shorted is Gossamer Bio, Inc. right now?

40.47% of Gossamer Bio, Inc.'s (GOSS) 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 Gossamer Bio, Inc.?

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

40.47%

of shares outstanding reported short · settlement date 31 Jul 2026

vs previous report: +9.29
5 reports (~10 weeks): +23.07

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<iframe src="https://howshorted.com/embed/us/goss/" width="100%" height="430" style="border:0" loading="lazy" title="Gossamer Bio, Inc. short interest chart"></iframe>
<p>Source: FINRA data compiled by <a href="https://howshorted.com/us/company/goss/">howshorted.com</a></p>

Cite this page

Short position data for Gossamer Bio, Inc.: FINRA, compiled by howshorted.com, settlement date 31 Jul 2026. https://howshorted.com/us/company/goss/

History

Settlement date	Short %	Change
31 Jul 2026	40.47%	+9.29
15 Jul 2026	31.18%	+8.30
30 Jun 2026	22.88%	−1.07
15 Jun 2026	23.95%	−2.81
29 May 2026	26.76%	+9.36
15 May 2026	17.40%	+0.35
30 Apr 2026	17.05%	−0.08
15 Apr 2026	17.13%	+1.15
31 Mar 2026	15.98%	+0.38
13 Mar 2026	15.60%	+0.60
27 Feb 2026	15.00%	+1.57
13 Feb 2026	13.43%	+1.86
30 Jan 2026	11.57%	+0.67
15 Jan 2026	10.90%	+0.48
31 Dec 2025	10.42%	+1.64
15 Dec 2025	8.78%	−1.35
28 Nov 2025	10.13%	−0.42
14 Nov 2025	10.55%	−0.22
31 Oct 2025	10.77%	−1.00
15 Oct 2025	11.77%	−0.28
30 Sep 2025	12.05%	+1.50
15 Sep 2025	10.55%	+0.85
29 Aug 2025	9.70%	+0.68
15 Aug 2025	9.02%	+0.78
31 Jul 2025	8.24%	–

Frequently asked questions

How shorted is Gossamer Bio, Inc. right now?: 40.47% of Gossamer Bio, Inc.'s (GOSS) 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.