RNA short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31

Short % of Float22.4%15,720,900 float shares

Days to Cover28.4123,798 average daily volume

Open Short Position3,514,133Atrium Therapeutics, Inc. Comm

Change vs Previous-77,091-2.1%

Short interest history

Twice-monthly snapshots of open short positions.

Settlement	Short Position	Change	Change %	Days to Cover	Short % Float
Jul 31, 2026	3,514,133	-77,091	-2.1%	28.4	22.4%
Jul 15, 2026	3,591,224	-65,597	-1.8%	17.7	22.8%
Jun 30, 2026	3,656,821	+46,403	+1.3%	12.5	23.3%

Short interest is an open-position snapshot published twice monthly. It is not daily short-sale volume.

Daily off-exchange short volume

FINRA-reported short-sale transaction flow for the last 30 calendar days.

Trade Date	Short Volume	FINRA Total	Short Volume %	Facilities
Aug 21, 2026	23,171	82,845	28.0%	3
Aug 20, 2026	17,988	75,851	23.7%	3
Aug 19, 2026	19,817	144,662	13.7%	3
Aug 18, 2026	8,105	37,590	21.6%	2
Aug 17, 2026	26,871	63,339	42.4%	3
Aug 14, 2026	38,279	56,733	67.5%	3
Aug 13, 2026	10,289	36,893	27.9%	2
Aug 12, 2026	8,310	26,788	31.0%	2
Aug 11, 2026	9,334	28,296	33.0%	2
Aug 10, 2026	9,765	38,151	25.6%	2
Aug 7, 2026	15,044	36,932	40.7%	2
Aug 6, 2026	10,734	39,041	27.5%	2
Aug 5, 2026	17,875	65,948	27.1%	2
Aug 4, 2026	14,603	54,920	26.6%	2
Aug 3, 2026	15,327	27,976	54.8%	2
Jul 31, 2026	17,161	28,743	59.7%	3
Jul 30, 2026	14,187	25,405	55.8%	2
Jul 29, 2026	11,146	26,006	42.9%	2
Jul 28, 2026	10,556	21,092	50.0%	2
Jul 27, 2026	22,195	28,170	78.8%	2
Jul 24, 2026	24,055	39,304	61.2%	2

Daily short volume is transaction flow reported through FINRA facilities. It does not measure open short positions and is not consolidated exchange-wide volume.