PTCT	The short sale volume percent (not short interest) for stock ticker PTCT is 44% on Jan 21, 2026. The short sale volume is 204,547. The total volume is 468,450. The short sale volume percent is up 4% compare to Jan 20, 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
2026-01-21	204,547	468,450	44%
2026-01-20	193,224	483,731	40%
2026-01-16	191,247	315,667	61%
2026-01-15	170,266	218,995	78%
2026-01-14	301,924	388,633	78%
2026-01-13	349,288	979,351	36%
2026-01-12	711,296	1,240,771	57%
2026-01-09	367,452	629,489	58%
2026-01-08	304,009	421,027	72%
2026-01-07	481,934	819,132	59%

Last 5 days short percent	56.58%
Last 10 days short percent	54.90%
Last 20 days short percent	58.40%
Last 50 days short percent	58.81%

Related Stock Ticker
Date	Ticker	Short Volume	Total Volume	Percent
2026-01-21	FATE	345,725	826,071	42%
2026-01-21	NVS	568,494	884,238	64%
2026-01-21	SRPT	424,606	789,379	54%
2026-01-21	VRTX	566,172	1,142,137	50%
2026-01-21	XLV	2,420,462	3,532,036	69%
2026-01-21	XNCR	46,319	151,291	31%