Company · Ownership research

IMPINJ INC PI

CIK 0001114995 · CUSIP 453204109

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 453204109 (PI), not CUSIP 453204909 (PI), CUSIP 453204959 (PI), and does not merge CUSIPs.

This page lists the top 20 of 143 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$134.45M 749,744 shares	0.01%	+16.15K(+2.20%)Added	SEC filing ↗ Nov 6, 2026	▾
02	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC CIK 1644956 · View history	$42.44M 236,706 shares	0.14%	-60.12K(-20.30%)Reduced	SEC filing ↗ Nov 6, 2026	▾
03	Bank of New York Mellon Corp CIK 1390777 · View history	$29.62M 165,212 shares	0.00%	+3.30K(+2.00%)Added	SEC filing ↗ Nov 5, 2026	▾
04	Allspring Global Investments Holdings, LLC CIK 1890906 · View history	$28.29M 153,866 shares	0.04%	-3.48K(-2.20%)Reduced	SEC filing ↗ Nov 4, 2026	▾
05	CITIGROUP INC CIK 831001 · View history	$25.23M 140,713 shares	0.01%	+104.45K(+288.10%)Added	SEC filing ↗ Nov 4, 2026	▾
06	PRINCIPAL FINANCIAL GROUP INC CIK 1126328 · View history	$25.21M 140,634 shares	0.01%	+7.96K(+6.00%)Added	SEC filing ↗ Nov 2, 2026	▾
07	DEUTSCHE BANK AG\ CIK 948046 · View history	$23.68M 132,099 shares	0.01%	+28.04K(+26.90%)Added	SEC filing ↗ Nov 6, 2026	▾
08	Fiera Capital Corp CIK 1505817 · View history	$21.16M 118,038 shares	0.08%	+2.03K(+1.70%)Added	SEC filing ↗ Nov 6, 2026	▾
09	Aberdeen Group plc CIK 1716774 · View history	$16.72M 93,271 shares	0.02%	-60.23K(-39.20%)Reduced	SEC filing ↗ Nov 6, 2026	▾
10	KORNITZER CAPITAL MANAGEMENT INC /KS CIK 898358 · View history	$15.13M 84,412 shares	0.32%	+23.60K(+38.80%)Added	SEC filing ↗ Nov 3, 2026	▾
11	RIVERBRIDGE PARTNERS LLC CIK 1112325 · View history	$10.45M 58,290 shares	0.31%	+2.26K(+4.00%)Added	SEC filing ↗ Nov 5, 2026	▾
12	Granite Investment Partners, LLC CIK 1542266 · View history	$8.19M 45,666 shares	0.45%	-1.95K(-4.10%)Reduced	SEC filing ↗ Nov 4, 2026	▾
13	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC CIK 1632972 · View history	$7.79M 42,461 shares	0.01%	+876(+2.10%)Added	SEC filing ↗ Oct 13, 2026	▾
14	Mitsubishi UFJ Asset Management Co., Ltd. CIK 1466546 · View history	$6.76M 37,700 shares	0.00%	-270(-0.70%)Reduced	SEC filing ↗ Nov 5, 2026	▾
15	BARCLAYS PLC CIK 312069 · View history	$5.77M 32,164 shares	0.00%	+25.01K(+349.50%)Added	SEC filing ↗ Nov 6, 2026	▾
16	Lisanti Capital Growth, LLC CIK 1424467 · View history	$5.64M 31,445 shares	1.51%	+25.85K(+462.00%)Added	SEC filing ↗ Nov 5, 2026	▾
17	Creative Planning CIK 1540235 · View history	$4.11M 22,934 shares	0.00%	+3.88K(+20.40%)Added	SEC filing ↗ Nov 2, 2026	▾
18	NEW YORK STATE TEACHERS RETIREMENT SYSTEM CIK 314969 · View history	$3.67M 20,500 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ Oct 22, 2026	▾
19	Thrivent Financial for Lutherans CIK 314984 · View history	$3.31M 18,461 shares	0.01%	+660(+3.70%)Added	SEC filing ↗ Nov 5, 2026	▾
20	Taylor Frigon Capital Management LLC CIK 1632665 · View history	$3.19M 17,811 shares	1.62%	-1.92K(-9.70%)Reduced	SEC filing ↗ Oct 23, 2026	▾

Showing 20 / 143 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

143

Cancelled or null records excluded

Disclosed shares

2,664,031

Not deduplicated across managers

Disclosed value

$478.54M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

IMPINJ INC · Q3 2026

Explore all 143 reporting institutions.

This page includes 20 of 143 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.