PI · Impinj Inc · Shareholders & Ownership
3 customers — 61% of revenue (In 2025)
“In 2025, sales to three major customers accounted for 61% of our total revenue.”
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Every disclosed holder of PI in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns PI
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 33,018,777 | 107.00% |
| Insiders (Forms 3, 4, 5) | 860,160 | 2.79% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 3,019,356 | -9.78% |
| Registered funds (N-PORT, not summed) | 17,594,009 | 57.01% |
Shares outstanding: 30,859,581, the issuer's latest cover-page count restated onto today's split basis.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of PI
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
FMR LLC
13F
CIK 315066 · Holding company · Sep 30, 2026
|
4,635,587 | ||
| 1.1 |
Select Semiconductors Portfolio
Fund
S000007458 · Registered fund · Aug 31, 2026
Fidelity Select Portfolios, not summed
|
1,122,366 | ||
| 1.2 |
Fidelity Growth Company Fund
Fund
S000007119 · Registered fund · Aug 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
|
1,018,526 | ||
| 1.3 |
Fidelity Small Cap Index Fund
Fund
S000033638 · Registered fund · Jul 31, 2026
Fidelity Salem Street Trust, not summed
|
319,834 | ||
| 1.4 |
Fidelity Growth Company K6 Fund
Fund
S000065696 · Registered fund · Aug 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
|
285,711 | ||
| 1.5 |
Fidelity Series Growth Company Fund
Fund
S000042626 · Registered fund · Aug 31, 2026
Fidelity Mt. Vernon Street Trust, not summed
|
254,147 | ||
| 2 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Sep 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
4,495,591 | ||
| 2.1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
4,449,389 | ||
| 2.2 |
iShares Core S&P Small-Cap ETF
Fund
S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,633,285 | ||
| 2.3 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
751,216 | ||
| 2.4 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
270,173 | ||
| 2.5 |
iShares S&P Small-Cap 600 Growth ETF
Fund
S000004314 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
243,469 | ||
| 3 |
SMALLCAP World Fund Inc
Fund
S000009599 · Registered fund · Jun 30, 2026
SMALLCAP World Fund Inc, not summed
|
2,411,885 | ||
| 4 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,194,236 | ||
| 5 |
STATE STREET CORP
13F
CIK 93751 · Bank · Sep 30, 2026
|
1,580,559 | ||
| 5.1 |
State Street(R) SPDR(R) S&P(R) Semiconductor ETF
Fund
S000010020 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
594,886 | ||
| 5.2 |
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund
S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
249,579 | ||
| 5.3 |
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund
S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
155,660 | ||
| 5.4 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
9,952 | ||
| 5.5 |
State Street(R) SPDR(R) FactSet Innovative Technology ETF
Fund
S000051577 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
4,492 | ||
| 6 |
Capital International Investors
13F
CIK 1562230 · Investment adviser · Sep 30, 2026
|
1,467,629 | ||
| 7 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,282,667 | ||
| 8 |
Capital World Investors
13F
CIK 1422849 · Investment adviser · Sep 30, 2026
|
1,133,693 | ||
| 9 |
|
1,045,181 | ||
| 10 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
918,515 | ||
| 11 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
834,376 | ||
| 12 |
AMERICAN CENTURY COMPANIES INC
13F
CIK 748054 · Unknown · Sep 30, 2026
|
828,644 | ||
| 12.1 |
Small Cap Growth Fund
Fund
S000006193 · Registered fund · Jul 31, 2026
American Century Mutual Funds, Inc., not summed
|
323,271 | ||
| 12.2 |
Small Company Fund
Fund
S000005981 · Registered fund · Jun 30, 2026
American Century Quantitative Equity Funds, Inc., not summed
|
2,761 | ||
| 12.3 |
Global Small Cap Fund
Fund
S000053103 · Registered fund · Aug 31, 2026
American Century World Mutual Funds, Inc., not summed
|
1,492 | ||
| 13 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Sep 30, 2026
|
749,744 | ||
| 14 |
Chevy Chase Trust Holdings, LLC
13F
CIK 1462020 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
737,138 | ||
| 14.1 |
CCT Thematic Equity Fund
Fund
S000069656 · Registered fund · Jul 31, 2026
ADVISORS' INNER CIRCLE III, not summed
|
9,184 | ||
| 15 |
|
685,752 | ||
| 15.1 |
SYLEBRA CAPITAL LLC
13F
CIK 2003074 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
775,943 | ||
| 16 |
MANUFACTURERS LIFE INSURANCE COMPANY, THE
13F
CIK 928047 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
669,324 | ||
| 17 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
663,862 | ||
| 18 |
VANGUARD INFORMATION TECHNOLOGY INDEX FUND
Fund
S000004452 · Registered fund · Aug 31, 2026
VANGUARD WORLD FUND, not summed
|
648,926 | ||
| 19 |
DIORIO CHRIS PH.D.
Insider
CIK 1677721 · Oct 12, 2026
Director, CHIEF EXECUTIVE OFFICER, issuer-wide
|
545,627 | ||
| 19.1 |
Christopher Diorio, Ph.D.
13G
CIK 1677721 · Unknown · Dec 31, 2023
Rule 13d-1(d), exempt investor, unconfirmed, last confirmed Dec 31, 2023, not summed
|
1,260,062 | ||
| 20 |
AMERIPRISE FINANCIAL INC
13F
CIK 820027 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
530,926 | ||
| 20.1 |
Columbia Small Cap Index Fund
Fund
S000010827 · Registered fund · Aug 31, 2026
COLUMBIA FUNDS SERIES TRUST, not summed
|
38,867 | ||
| 20.2 |
Variable Portfolio - Partners Small Cap Growth Fund
Fund
S000028697 · Registered fund · Jun 30, 2026
Columbia Funds Variable Series Trust II, not summed
|
7,217 | ||
| 20.3 |
Columbia Global Opportunities Fund
Fund
S000031367 · Registered fund · Jul 31, 2026
Columbia Funds Series Trust II, not summed
|
1,684 | ||
| 21 |
Point72 Asset Management, L.P.
13F
CIK 1603466 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
408,333 | ||
| 22 |
Whale Rock Capital Management LLC
13F
CIK 1387322 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
405,244 | ||
| 23 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
388,783 | ||
| 23.1 |
Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF
Fund
S000048296 · Registered fund · Aug 31, 2026
Goldman Sachs ETF Trust, not summed
|
6,244 | ||
| 23.2 |
Goldman Sachs Small Cap Growth Insights Fund
Fund
S000014930 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
1,886 | ||
| 23.3 |
Multi-Manager U.S. Small Cap Equity Fund
Fund
S000051363 · Registered fund · Apr 30, 2026
Goldman Sachs Trust II, not summed
|
1,229 | ||
| 23.4 |
Goldman Sachs Small Cap Equity Insights Fund
Fund
S000009329 · Registered fund · Jul 31, 2026
Goldman Sachs Trust, not summed
|
1,038 | ||
| 23.5 |
Goldman Sachs Absolute Return Tracker Fund
Fund
S000020314 · Registered fund · Aug 31, 2026
GOLDMAN SACHS TRUST, not summed
|
41 | ||
| 24 |
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund
S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
382,382 | ||
| 25 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
360,534 | ||
| 25.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
13 | ||
| 26 |
PRICE T ROWE ASSOCIATES INC /MD/
13F
CIK 80255 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
357,059 | ||
| 26.1 |
T. Rowe Price Integrated U.S. Small-Cap Growth Equity Fund
Fund
S000002074 · Registered fund · Jun 30, 2026
T. ROWE PRICE INTEGRATED EQUITY FUNDS, INC., not summed
|
133,000 | ||
| 26.2 |
T. Rowe Price Small-Cap Stock Fund, Inc.
Fund
S000002120 · Registered fund · Jun 30, 2026
T. ROWE PRICE SMALL-CAP STOCK FUND, INC., not summed
|
81,827 | ||
| 26.3 |
T. Rowe Price Institutional Small-Cap Stock Fund
Fund
S000002094 · Registered fund · Jun 30, 2026
T. Rowe Price Equity Funds, Inc., not summed
|
42,160 | ||
| 26.4 |
T. Rowe Price Diversified Mid-Cap Growth Fund, Inc.
Fund
S000002073 · Registered fund · Jun 30, 2026
T. ROWE PRICE DIVERSIFIED MID-CAP GROWTH FUND, INC., not summed
|
29,108 | ||
| 26.5 |
T. Rowe Price Small-Cap Value Fund, Inc.
Fund
S000002121 · Registered fund · Jun 30, 2026
T. ROWE PRICE SMALL-CAP VALUE FUND, INC., not summed
|
9,243 | ||
| 27 |
Broad Bay Capital Management, LP
13F
CIK 1759115 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
328,700 | ||
| 28 |
WESTFIELD CAPITAL MANAGEMENT CO LP
13F
CIK 1177719 · Registered investment adviser · Sep 30, 2026
|
326,976 | ||
| 29 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
320,053 | ||
| 29.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
14,802 | ||
| 29.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
2,964 | ||
| 29.3 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
1,368 | ||
| 30 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
310,964 | ||
| 31 |
UBS Group AG
13F
CIK 1610520 · Bank · Sep 30, 2026
|
298,344 | ||
| 32 |
Nuveen, LLC
13F
CIK 1871926 · Unknown · Sep 30, 2026
|
280,478 | ||
| 32.1 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
166,319 | ||
| 32.2 |
Nuveen Small Cap Select Fund
Fund
S000005569 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
|
48,873 | ||
| 32.3 |
Nuveen Small Cap Growth Opportunities Fund
Fund
S000005567 · Registered fund · Jul 31, 2026
Nuveen Investment Funds, Inc., not summed
|
40,823 | ||
| 32.4 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
37,724 | ||
| 32.5 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
21,228 | ||
| 33 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
277,540 | ||
| 33.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
128,557 | ||
| 33.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
71,182 | ||
| 33.3 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
17,307 | ||
| 33.4 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · Aug 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
16,016 | ||
| 33.5 |
Schwab 1000 Index Fund
Fund
S000006807 · Registered fund · Jul 31, 2026
SCHWAB INVESTMENTS, not summed
|
9,162 | ||
| 34 |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
13F
CIK 1644956 · Registered investment adviser · Sep 30, 2026
|
236,706 | ||
| 34.1 |
William Blair Small Cap Growth Fund
Fund
S000008602 · Registered fund · Jun 30, 2026
WILLIAM BLAIR FUNDS, not summed
|
101,120 | ||
| 35 |
LOOMIS SAYLES & CO L P
13F
CIK 312348 · Registered investment adviser · Sep 30, 2026
|
214,124 | ||
| 36 |
AWM Investment Company, Inc.
13F
CIK 1535264 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
207,018 | ||
| 37 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
197,514 | ||
| 38 |
T. Rowe Price Investment Management, Inc.
13F
CIK 1897612 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
192,948 | ||
| 39 |
Public Sector Pension Investment Board
13F
CIK 1396318 · Non-US institution · Sep 30, 2026
|
187,963 | ||
| 40 |
NORGES BANK
13F
CIK 1374170 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
186,182 | ||
| 41 |
VOYA INVESTMENT MANAGEMENT LLC
13F
CIK 1068837 · Registered investment adviser · Sep 30, 2026
|
182,807 | ||
| 42 |
Rockefeller Capital Management L.P.
13F
CIK 1739439 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
181,548 | ||
| 42.1 |
Rockefeller US Small Cap Core Fund
Fund
S000080973 · Registered fund · Aug 31, 2026
Trust for Professional Managers, not summed
|
10,067 | ||
| 43 |
ROYCE & ASSOCIATES LP
13F
CIK 906304 · Registered investment adviser · Sep 30, 2026
|
172,175 | ||
| 43.1 |
Royce Small-Cap Fund
Fund
S000009507 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
|
49,151 | ||
| 43.2 |
Royce Smaller-Companies Growth Fund
Fund
S000009517 · Registered fund · Jun 30, 2026
ROYCE FUND, not summed
|
41,750 | ||
| 44 |
VANGUARD RUSSELL 2000 INDEX FUND
Fund
S000030003 · Registered fund · Aug 31, 2026
VANGUARD SCOTTSDALE FUNDS, not summed
|
167,684 | ||
| 45 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Sep 30, 2026
|
166,624 | ||
| 45.1 |
Invesco S&P SmallCap Information Technology ETF
Fund
S000028301 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
58,867 | ||
| 45.2 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
5,127 | ||
| 45.3 |
Invesco S&P SmallCap 600 Revenue ETF
Fund
S000064596 · Registered fund · Aug 31, 2026
Invesco Exchange-Traded Fund Trust II, not summed
|
3,865 | ||
| 46 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Sep 30, 2026
|
165,212 | ||
| 46.1 |
BNY Mellon US Small Cap Core Equity ETF
Fund
S000067262 · Registered fund · Jul 31, 2026
BNY Mellon ETF Trust, not summed
|
924 | ||
| 47 |
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund
S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
|
165,102 | ||
| 48 |
BNP PARIBAS ASSET MANAGEMENT Holding S.A.
13F
CIK 1520354 · Non-US institution · Jun 30, 2026
carried, not yet filed for the newest quarter
|
164,883 | ||
| 49 |
FRED ALGER MANAGEMENT, LLC
13F
CIK 3520 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
159,966 | ||
| 49.1 |
ALGER SMALL CAP FOCUS FUND
Fund
S000020958 · Registered fund · Jul 31, 2026
ALGER FUNDS, not summed
|
98,621 | ||
| 49.2 |
ALGER WEATHERBIE SPECIALIZED GROWTH FUND
Fund
S000009165 · Registered fund · Jul 31, 2026
ALGER FUNDS, not summed
|
36,010 | ||
| 49.3 |
ALGER SMALL CAP GROWTH FUND
Fund
S000009160 · Registered fund · Jul 31, 2026
ALGER FUNDS, not summed
|
14,494 | ||
| 49.4 |
Alger Small Cap Growth Portfolio
Fund
S000009215 · Registered fund · Jun 30, 2026
ALGER PORTFOLIOS, not summed
|
5,691 | ||
| 49.5 |
ALGER SMALL CAP GROWTH INSTITUTIONAL FUND
Fund
S000009202 · Registered fund · Jul 31, 2026
ALGER INSTITUTIONAL FUNDS, not summed
|
5,681 | ||
| 50 |
Allspring Global Investments Holdings, LLC
13F
CIK 1890906 · Holding company · Sep 30, 2026
|
153,866 | ||
| 50.1 |
Allspring SMID Cap Growth Fund
Fund
S000007345 · Registered fund · Jun 30, 2026
ALLSPRING FUNDS TRUST, not summed
|
41,868 | ||
| 50.2 |
Allspring Emerging Growth Fund
Fund
S000015703 · Registered fund · Jul 31, 2026
ALLSPRING FUNDS TRUST, not summed
|
18,355 | ||
| 50.3 |
Allspring VT Small Cap Growth Fund
Fund
S000007228 · Registered fund · Jun 30, 2026
Allspring VARIABLE TRUST, not summed
|
17,901 | ||
| 50.4 |
Allspring VT Discovery SMID Cap Growth Fund
Fund
S000007218 · Registered fund · Jun 30, 2026
Allspring VARIABLE TRUST, not summed
|
8,065 | ||
| 50.5 |
Allspring Discovery Small Cap Growth Fund
Fund
S000029105 · Registered fund · Jun 30, 2025
ALLSPRING FUNDS TRUST, not summed
|
7,358 |
50 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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