LYEL short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31

Short % of Float11.3%10,873,400 float shares

Days to Cover8.7142,256 average daily volume

Open Short Position1,231,583Lyell Immunopharma, Inc. Commo

Change vs Previous+11,086+0.9%

Short interest history

Twice-monthly snapshots of open short positions.

Settlement	Short Position	Change	Change %	Days to Cover	Short % Float
Jul 31, 2026	1,231,583	+11,086	+0.9%	8.7	11.3%
Jul 15, 2026	1,220,497	-2,723	-0.2%	6.7	11.2%
Jun 30, 2026	1,223,220	-93,342	-7.1%	3.4	11.2%

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	24,294	11,439	45,470	53.4%	3
Aug 20, 2026	22,821	2,316	59,666	38.2%	3
Aug 19, 2026	18,047	0	57,661	31.3%	2
Aug 18, 2026	29,780	900	113,702	26.2%	2
Aug 17, 2026	17,796	0	38,364	46.4%	3
Aug 14, 2026	14,015	0	28,468	49.2%	2
Aug 13, 2026	10,889	0	33,886	32.1%	2
Aug 12, 2026	8,833	0	23,838	37.1%	3
Aug 11, 2026	19,358	0	33,446	57.9%	2
Aug 10, 2026	42,820	14,704	70,035	61.1%	3
Aug 7, 2026	14,493	0	31,861	45.5%	2
Aug 6, 2026	59,547	0	113,944	52.3%	3
Aug 5, 2026	25,375	0	215,571	11.8%	3
Aug 4, 2026	26,602	0	39,097	68.0%	2
Aug 3, 2026	14,037	0	34,534	40.6%	3
Jul 31, 2026	27,943	0	38,217	73.1%	2
Jul 30, 2026	33,790	0	78,646	43.0%	3
Jul 29, 2026	28,121	0	56,414	49.8%	3
Jul 28, 2026	24,808	0	53,612	46.3%	3
Jul 27, 2026	40,438	0	52,822	76.6%	3
Jul 24, 2026	21,854	0	27,211	80.3%	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.