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PI · Impinj Inc · Holdings

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$189.61 +5.74 (+3.12%) At close · Oct 2
Market Cap
$5.45B
Shares
30.55M
Volume · Oct 2 479.57K Avg daily vol (3M) 407.52K

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.

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 319
Total Value: $4,762,897,000
Total Shares: 33,277,949
Showing 1–100 of 335 holdings by value · page 1 of 4

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 318 13F filers
Top Holder
13.7%
Sep 2023 → Jun 2026 · range 12.7% – 14.8%
of institutional value
Top 5
43.2%
Sep 2023 → Jun 2026 · range 41.8% – 51.2%
of institutional value
Top 10
57.7%
Sep 2023 → Jun 2026 · range 57.5% – 65.3%
of institutional value
HHI
538
Sep 2023 → Jun 2026 · range 523 – 645
Broadly held
Showing 100 of 335
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1114995 CUSIP 453204109 13F (30d) 6 filings 6 filers Visit website Investor relations