HALO short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31

Short % of Float12.5%112,155,000 float shares

Days to Cover8.41,679,119 average daily volume

Open Short Position14,022,134Halozyme Therapeutics, Inc. Co

Change vs Previous+726,173+5.5%

Short interest history

Twice-monthly snapshots of open short positions.

Settlement	Short Position	Change	Change %	Days to Cover	Short % Float
Jul 31, 2026	14,022,134	+726,173	+5.5%	8.4	12.5%
Jul 15, 2026	13,295,961	+69,738	+0.5%	7.3	11.9%
Jun 30, 2026	13,226,223	+277,934	+2.1%	6.3	11.8%

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	303,190	10,386	571,647	53.0%	3
Aug 20, 2026	215,157	466	444,348	48.4%	3
Aug 19, 2026	565,664	35,716	1,210,216	46.7%	3
Aug 18, 2026	403,027	8,058	888,706	45.3%	3
Aug 17, 2026	523,026	31,519	1,126,936	46.4%	3
Aug 14, 2026	158,467	858	889,255	17.8%	3
Aug 13, 2026	349,609	94,474	979,815	35.7%	3
Aug 12, 2026	1,336,459	184,264	1,985,357	67.3%	3
Aug 11, 2026	1,104,844	62,423	1,533,940	72.0%	3
Aug 10, 2026	1,057,256	218,715	1,811,035	58.4%	3
Aug 7, 2026	2,022,344	177,876	3,933,038	51.4%	3
Aug 6, 2026	495,480	23,820	1,016,666	48.7%	3
Aug 5, 2026	448,990	20,603	568,435	79.0%	3
Aug 4, 2026	396,992	24,229	554,203	71.6%	3
Aug 3, 2026	285,390	203	481,318	59.3%	3
Jul 31, 2026	467,398	456	592,384	78.9%	3
Jul 30, 2026	418,911	537	707,999	59.2%	3
Jul 29, 2026	454,108	33	688,766	65.9%	3
Jul 28, 2026	658,646	4,444	834,366	78.9%	3
Jul 27, 2026	357,410	3,928	585,666	61.0%	3
Jul 24, 2026	483,418	2,883	725,053	66.7%	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.