PI

Impinj Inc

Company with tickers: PI

CIK

1114995

CUSIP

453204109

Shares Outstanding

30,459,185

13F Activity (30d)

255 filings 253 filers

Short Volume (Last 90 Days)

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-05-27	124,546	9,377	154,315	80.7%
2026-05-26	180,048	7	227,780	79.0%
2026-05-22	129,046	249	169,578	76.1%
2026-05-21	169,676	5	235,254	72.1%
2026-05-20	152,020	1,223	243,121	62.5%
2026-05-19	214,187	0	353,535	60.6%
2026-05-18	112,356	0	169,671	66.2%
2026-05-15	95,312	810	148,042	64.4%
2026-05-14	70,415	57	124,255	56.7%
2026-05-13	101,147	1,259	162,843	62.1%
2026-05-12	109,810	57	216,212	50.8%
2026-05-11	108,410	0	158,213	68.5%
2026-05-08	102,203	12,605	169,880	60.2%
2026-05-07	125,924	0	173,374	72.6%
2026-05-06	201,399	144	251,613	80.0%
2026-05-05	188,680	7,498	293,192	64.4%
2026-05-04	149,559	163	317,401	47.1%
2026-05-01	175,459	0	293,773	59.7%
2026-04-30	374,984	14	705,856	53.1%
2026-04-29	254,176	0	398,222	63.8%
2026-04-28	240,028	0	353,852	67.8%
2026-04-27	106,765	112	267,523	39.9%
2026-04-24	74,328	0	152,122	48.9%
2026-04-23	152,466	80	188,287	81.0%
2026-04-22	143,155	95	205,790	69.6%
2026-04-21	216,507	55	315,982	68.5%
2026-04-20	89,151	3,278	131,700	67.7%
2026-04-17	134,883	0	180,701	74.6%
2026-04-16	86,648	0	131,612	65.8%
2026-04-15	57,570	0	108,066	53.3%
2026-04-14	63,722	0	91,077	70.0%
2026-04-13	82,226	0	139,010	59.2%
2026-04-10	78,346	0	109,759	71.4%
2026-04-09	82,877	0	102,496	80.9%
2026-04-08	78,663	0	145,083	54.2%
2026-04-07	82,319	0	121,430	67.8%
2026-04-06	51,624	0	99,557	51.9%