RPID short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31

Short % of Float2.5%32,704,000 float shares

Days to Cover5.1163,470 average daily volume

Open Short Position825,765Rapid Micro Biosystems, Inc. C

Change vs Previous-16,571-2.0%

Short interest history

Twice-monthly snapshots of open short positions.

Settlement	Short Position	Change	Change %	Days to Cover	Short % Float
Jul 31, 2026	825,765	-16,571	-2.0%	5.1	2.5%
Jul 15, 2026	842,336	+103,867	+14.1%	3.2	2.6%
Jun 30, 2026	738,469	+124,472	+20.3%	3.7	2.3%

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	Short Exempt	FINRA Total	Short Volume %	Facilities
Aug 21, 2026	20,629	0	51,834	39.8%	2
Aug 20, 2026	65,892	0	174,441	37.8%	2
Aug 19, 2026	72,408	0	153,482	47.2%	3
Aug 18, 2026	12,484	0	28,205	44.3%	2
Aug 17, 2026	151,858	38,212	208,970	72.7%	3
Aug 14, 2026	82,869	0	167,759	49.4%	3
Aug 13, 2026	10,862	0	48,512	22.4%	3
Aug 12, 2026	22,618	0	38,394	58.9%	3
Aug 11, 2026	44,990	6,800	123,498	36.4%	3
Aug 10, 2026	61,325	6,814	125,774	48.8%	3
Aug 7, 2026	387,560	68,280	897,266	43.2%	3
Aug 6, 2026	17,312	0	25,594	67.6%	2
Aug 5, 2026	4,974	0	6,655	74.7%	2
Aug 4, 2026	22,526	0	44,598	50.5%	2
Aug 3, 2026	31,022	0	39,060	79.4%	2
Jul 31, 2026	8,188	0	11,203	73.1%	2
Jul 30, 2026	28,848	0	71,901	40.1%	2
Jul 29, 2026	15,464	0	20,366	75.9%	3
Jul 28, 2026	28,296	0	48,987	57.8%	3
Jul 27, 2026	16,620	0	27,014	61.5%	2
Jul 24, 2026	50,331	0	63,916	78.7%	3

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