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PI · Impinj Inc

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$159.72 -5.27 (-3.19%)
Market Cap
$5.04B
Shares
30.55M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 316
Total Value: $4,757,654,359
Total Shares: 33,241,876

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 316 13F filers · Δ vs Mar 31, 2026
Top Holder
13.7%
Sep 2023 → Jun 2026 · range 12.7% – 14.8%
+0.4 pts
Top 5
43.2%
Sep 2023 → Jun 2026 · range 41.8% – 51.2%
+1.4 pts
Top 10
57.7%
Sep 2023 → Jun 2026 · range 57.5% – 65.3%
+0.2 pts
HHI
539
Sep 2023 → Jun 2026 · range 523 – 645
Broadly held+16

Quarterly Activity

vs Mar 31, 2026
New
65
Increased
118
Decreased
88
Sold Out
43
Unchanged
45
Holder count: +22
Institutional value: +42.8%
Shares held: +2.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 332
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1114995 CUSIP 453204109 13F (30d) 291 filings 287 filers Visit website Investor relations