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PI · Impinj Inc · Short Volume

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$164.70 -7.12 (-4.14%) At close · Sep 9
S&P 600 member Russell 2000 member Rebalance outlook locked
Customer concentration — top 3 customers 61% of revenue

3 customers — 61% of revenue (2025)

“In 2025, sales to three major customers accounted for 61% of our total revenue.”
View the 10-Q filed Jul 29, 2026
Market Cap
$5.03B
Shares
30.55M

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

Pull daily short volume through the short interest API or MCP →
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    • Short Volume

    Date Short Volume Short Exempt Total Volume Short %
    2026-09-09 71,345 100 128,600 55.5%
    2026-09-08 82,728 27 127,542 64.9%
    2026-09-04 73,091 0 115,481 63.3%
    2026-09-03 82,274 1,203 128,679 63.9%
    2026-09-02 120,802 0 168,450 71.7%
    2026-09-01 73,682 89 127,964 57.6%
    2026-08-31 87,676 0 110,824 79.1%
    2026-08-28 96,958 0 126,007 76.9%
    2026-08-27 83,547 0 117,322 71.2%
    2026-08-26 93,199 0 116,059 80.3%
    2026-08-25 148,135 12 172,437 85.9%
    2026-08-24 63,311 0 101,821 62.2%
    2026-08-21 84,689 38 145,710 58.1%
    2026-08-20 54,116 0 86,988 62.2%
    2026-08-19 40,778 0 73,310 55.6%
    2026-08-18 64,947 0 95,561 68.0%
    2026-08-17 64,974 320 103,901 62.5%
    2026-08-14 60,693 20 119,142 50.9%
    2026-08-13 85,373 11 146,505 58.3%
    2026-08-12 111,055 0 143,751 77.3%
    2026-08-11 98,057 0 164,489 59.6%
    2026-08-10 141,306 10 205,191 68.9%
    2026-08-07 179,310 201 280,659 63.9%
    2026-08-06 106,652 66 175,323 60.8%
    2026-08-05 95,603 19 171,774 55.7%
    2026-08-04 176,669 0 277,481 63.7%
    2026-08-03 146,031 75 317,588 46.0%
    2026-07-31 140,942 2 226,473 62.2%
    2026-07-30 276,668 255 441,557 62.7%
    2026-07-29 212,883 73 335,115 63.5%
    2026-07-28 154,967 18 197,869 78.3%
    2026-07-27 71,578 79 133,923 53.4%
    2026-07-24 66,863 1,030 85,610 78.1%
    2026-07-23 127,034 0 251,602 50.5%
    2026-07-22 45,409 0 61,817 73.5%
    2026-07-21 63,854 0 107,414 59.4%
    2026-07-20 63,944 0 105,530 60.6%
    2026-07-17 49,415 0 69,824 70.8%
    2026-07-16 83,307 0 117,294 71.0%
    2026-07-15 44,427 0 64,512 68.9%
    2026-07-14 45,574 0 74,946 60.8%
    2026-07-13 106,123 0 143,586 73.9%
    2026-07-10 29,440 0 51,894 56.7%
    2026-07-09 47,523 0 84,600 56.2%
    2026-07-08 76,074 0 120,418 63.2%
    2026-07-07 64,213 0 155,980 41.2%
    2026-07-06 99,992 401 126,651 79.0%
    2026-07-02 65,446 48 90,137 72.6%
    2026-07-01 77,990 124 102,241 76.3%
    2026-06-30 152,194 13 178,824 85.1%
    Showing 1–50 of 63 days
    Key facts CIK 1114995 CUSIP 453204109 13F (30d) 173 filings 173 filers Visit website Investor relations