PEN

Penumbra Inc

Company with tickers: PEN

CIK

1321732

CUSIP

70975L107

Shares Outstanding

39,331,425

13F Activity (30d)

398 filings 393 filers

Short Volume (Last 90 Days)

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-05-28	91,085	9	185,751	49.0%
2026-05-27	131,313	0	195,486	67.2%
2026-05-26	42,009	0	66,924	62.8%
2026-05-22	85,008	0	170,133	50.0%
2026-05-21	42,630	687	90,730	47.0%
2026-05-20	55,043	0	137,018	40.2%
2026-05-19	64,809	8	300,141	21.6%
2026-05-18	84,251	50	199,039	42.3%
2026-05-15	52,550	1	129,601	40.5%
2026-05-14	89,878	13	115,726	77.7%
2026-05-13	50,334	0	81,040	62.1%
2026-05-12	51,962	3	96,288	54.0%
2026-05-11	68,962	17	114,409	60.3%
2026-05-08	59,143	403	104,473	56.6%
2026-05-07	104,640	27	172,489	60.7%
2026-05-06	70,522	812	124,637	56.6%
2026-05-05	81,395	0	163,398	49.8%
2026-05-04	67,490	104	169,041	39.9%
2026-05-01	56,862	0	108,679	52.3%
2026-04-30	53,153	1	94,847	56.0%
2026-04-29	131,622	12	188,770	69.7%
2026-04-28	59,889	16	100,739	59.4%
2026-04-27	57,200	9	83,932	68.2%
2026-04-24	44,062	0	93,951	46.9%
2026-04-23	96,249	0	260,313	37.0%
2026-04-22	192,808	0	394,790	48.8%
2026-04-21	127,842	0	500,028	25.6%
2026-04-20	76,184	0	156,514	48.7%
2026-04-17	49,133	0	102,362	48.0%
2026-04-16	37,372	453	58,581	63.8%
2026-04-15	45,503	1	87,812	51.8%
2026-04-14	37,249	80	101,771	36.6%
2026-04-13	38,866	25	74,735	52.0%
2026-04-10	53,538	3	96,133	55.7%
2026-04-09	63,993	0	122,689	52.2%
2026-04-08	61,115	0	105,266	58.1%
2026-04-07	115,528	196	255,906	45.1%
2026-04-06	67,791	1	114,495	59.2%