REGN	The short sale volume percent (not short interest) for stock ticker REGN is 32% on Jan 16, 2026. The short sale volume is 120,127. The total volume is 380,693. The short sale volume percent is up 8% compare to Jan 15, 2026.

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Insider Buying

The Volume and short volume are limited. It is not including all volumes from all Market.
Date	Short Volume	Total Volume	Percent
2026-01-16	120,127	380,693	32%
2026-01-15	79,041	324,788	24%
2026-01-14	82,827	248,560	33%
2026-01-13	137,135	397,351	35%
2026-01-12	225,277	501,644	45%
2026-01-09	156,434	291,939	54%
2026-01-08	250,654	433,877	58%
2026-01-07	261,256	580,107	45%
2026-01-06	139,659	363,588	38%
2026-01-05	140,133	314,881	45%

Last 5 days short percent	34.78%
Last 10 days short percent	41.50%
Last 20 days short percent	45.43%
Last 50 days short percent	49.70%

Related Stock Ticker
Date	Ticker	Short Volume	Total Volume	Percent
2026-01-16	ALNY	219,745	387,569	57%
2026-01-16	AMGN	500,048	940,164	53%
2026-01-16	BIIB	349,828	605,919	58%
2026-01-16	JNJ	970,676	3,479,386	28%
2026-01-16	NVS	526,584	723,175	73%
2026-01-16	SNY	610,119	1,172,923	52%
2026-01-16	XLV	1,903,050	3,224,106	59%