Who owns Impinj (PI)
Which tracked institutional funds hold PI, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See PI company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on PI is one-sided between 2026-Q1 and 2026-Q2: 132 added or opened and 42 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
PI’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in PI divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 293 tracked filers holding PI, 176 increased or opened the position and 140 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in PI between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 17
- Broad Bay Capital Management, LP$47M
- WESTFIELD CAPITAL MANAGEMENT CO LP$39M
- SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC$9M
- Weiss Asset Management LP$8M
- RIVERBRIDGE PARTNERS LLC$8M
- Jupiter Topco LLC$3M
Full exits 27
- Alyeska Investment Group, L.P.$75M
- T. Rowe Price Investment Management, Inc.$31M
- Polar Asset Management Partners Inc.$14M
- OBERWEIS ASSET MANAGEMENT INC/$12M
- WELLINGTON MANAGEMENT GROUP LLP$9M
- MARSHALL WACE, LLP$6M
Largest adds
- BlackRock, Inc.$334M
- FMR LLC$214M
- MILLENNIUM MANAGEMENT LLC$109M
- VANGUARD PORTFOLIO MANAGEMENT LLC$94M
- STATE STREET CORP$91M
- Capital International Investors$68M
Largest trims
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$38M
- ALLIANCEBERNSTEIN L.P.$13M
- AMERIPRISE FINANCIAL INC$12M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$8M
- NEUBERGER BERMAN GROUP LLC$7M
- SYLEBRA CAPITAL LLC$5M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| FMR LLC added | 4,562,799 | $654M | 14.4% | 2026-Q2 |
| BlackRock, Inc. added | 4,449,389 | $637M | 14.0% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 2,194,236 | $314M | 6.9% | 2026-Q2 |
| STATE STREET CORP added | 1,700,585 | $244M | 5.4% | 2026-Q2 |
| Capital International Investors added | 1,443,452 | $207M | 4.5% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,282,667 | $184M | 4.0% | 2026-Q2 |
| Capital World Investors added | 1,124,066 | $161M | 3.5% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 834,376 | $120M | 2.6% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 804,335 | $115M | 2.5% | 2026-Q2 |
| SYLEBRA CAPITAL LLC trimmed | 775,943 | $111M | 2.4% | 2026-Q2 |
| Chevy Chase Trust Holdings, LLC added | 737,138 | $106M | 2.3% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 733,594 | $105M | 2.3% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 669,324 | $96M | 2.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 530,926 | $76M | 1.7% | 2026-Q2 |
| UBS Group AG trimmed | 414,418 | $59M | 1.3% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 408,333 | $58M | 1.3% | 2026-Q2 |
| Whale Rock Capital Management LLC | 405,244 | $58M | 1.3% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 388,783 | $56M | 1.2% | 2026-Q2 |
| MORGAN STANLEY added | 360,534 | $52M | 1.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 357,059 | $51M | 1.1% | 2026-Q2 |
| Nuveen, LLC added | 347,867 | $50M | 1.1% | 2026-Q2 |
| Broad Bay Capital Management, LP new | 328,700 | $47M | 1.0% | 2026-Q2 |
| NORTHERN TRUST CORP added | 320,053 | $46M | 1.0% | 2026-Q2 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC added | 296,821 | $43M | 0.9% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 277,540 | $40M | 0.9% | 2026-Q2 |
| WESTFIELD CAPITAL MANAGEMENT CO LP new | 270,646 | $39M | 0.9% | 2026-Q2 |
| AWM Investment Company, Inc. | 207,018 | $30M | 0.7% | 2026-Q2 |
| ROYCE & ASSOCIATES LP added | 203,114 | $29M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 197,514 | $28M | 0.6% | 2026-Q2 |
| NORGES BANK trimmed | 186,182 | $27M | 0.6% | 2026-Q2 |
| Rockefeller Capital Management L.P. added | 181,548 | $26M | 0.6% | 2026-Q2 |
| EMERALD ADVISERS, LLC trimmed | 176,780 | $25M | 0.6% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 170,699 | $24M | 0.5% | 2026-Q2 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. added | 164,883 | $24M | 0.5% | 2026-Q2 |
| Bank of New York Mellon Corp added | 161,916 | $23M | 0.5% | 2026-Q2 |
| FRED ALGER MANAGEMENT, LLC trimmed | 159,966 | $23M | 0.5% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC trimmed | 157,343 | $23M | 0.5% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC added | 156,740 | $22M | 0.5% | 2026-Q2 |
| BAILLIE GIFFORD & CO trimmed | 155,965 | $22M | 0.5% | 2026-Q2 |
| Aberdeen Group plc trimmed | 153,502 | $22M | 0.5% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 132,679 | $19M | 0.4% | 2026-Q2 |
| Squarepoint Ops LLC added | 116,850 | $17M | 0.4% | 2026-Q2 |
| Fiera Capital Corp trimmed | 116,009 | $17M | 0.4% | 2026-Q2 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 111,287 | $16M | 0.4% | 2026-Q2 |
| Tidal Investments LLC added | 110,251 | $16M | 0.3% | 2026-Q2 |
| JENNISON ASSOCIATES LLC trimmed | 105,639 | $15M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 104,713 | $15M | 0.3% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 104,061 | $15M | 0.3% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 102,093 | $14M | 0.3% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 95,799 | $14M | 0.3% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 93,134 | $13M | 0.3% | 2026-Q2 |
| Invesco Ltd. added | 92,996 | $13M | 0.3% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 88,962 | $13M | 0.3% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS added | 87,454 | $13M | 0.3% | 2026-Q2 |
| Stephens Investment Management Group LLC added | 82,897 | $12M | 0.3% | 2026-Q2 |
| PEREGRINE INVESTMENT MANAGEMENT INC added | 71,010 | $10M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 67,876 | $10M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 65,418 | $9M | 0.2% | 2026-Q2 |
| Legal & General Group Plc added | 62,373 | $9M | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 62,088 | $9M | 0.2% | 2026-Q2 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC added | 61,500 | $9M | 0.2% | 2026-Q2 |
| KORNITZER CAPITAL MANAGEMENT INC /KS added | 60,816 | $9M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 58,100 | $8M | 0.2% | 2026-Q2 |
| Weiss Asset Management LP new | 57,722 | $8M | 0.2% | 2026-Q2 |
| RIVERBRIDGE PARTNERS LLC new | 56,028 | $8M | 0.2% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 55,729 | $8M | 0.2% | 2026-Q2 |
| Man Group plc trimmed | 48,836 | $7M | 0.2% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 47,822 | $7M | 0.2% | 2026-Q2 |
| SEGALL BRYANT & HAMILL, LLC added | 47,808 | $7M | 0.2% | 2026-Q2 |
| Granite Investment Partners, LLC trimmed | 47,616 | $7M | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 47,464 | $7M | 0.1% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 42,303 | $6M | 0.1% | 2026-Q2 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC added | 42,253 | $6M | 0.1% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added | 41,585 | $6M | 0.1% | 2026-Q2 |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 39,913 | $6M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 38,265 | $5M | 0.1% | 2026-Q2 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 37,970 | $5M | 0.1% | 2026-Q2 |
| Z3 Capital Partners, LLC added | 37,678 | $5M | 0.1% | 2026-Q2 |
| Polar Capital Holdings Plc added | 37,648 | $5M | 0.1% | 2026-Q2 |
| Toronado Partners, LLC trimmed | 37,455 | $5M | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 36,946 | $5M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 36,259 | $5M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 35,954 | $4M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 34,338 | $5M | 0.1% | 2026-Q2 |
| ARDSLEY ADVISORY PARTNERS LP added | 33,000 | $5M | 0.1% | 2026-Q2 |
| GILDER GAGNON HOWE & CO LLC added | 31,844 | $5M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 28,272 | $4M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 26,725 | $4M | 0.1% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 25,600 | $4M | 0.1% | 2026-Q2 |
| Jupiter Topco LLC new | 24,441 | $3M | 0.1% | 2026-Q2 |
| IRONWOOD INVESTMENT MANAGEMENT LLC added | 23,262 | $3M | 0.1% | 2026-Q2 |
| OSAIC HOLDINGS, INC. trimmed | 22,478 | $3M | 0.1% | 2026-Q2 |
| Taylor Frigon Capital Management LLC added | 19,735 | $3M | 0.1% | 2026-Q2 |
| Creative Planning added | 19,053 | $3M | 0.1% | 2026-Q2 |
| Polymer Capital Management (HK) LTD added | 18,769 | $3M | 0.1% | 2026-Q2 |
| Pachira Investments Inc. | 18,104 | $3M | 0.1% | 2026-Q2 |
| STIFEL FINANCIAL CORP added | 17,854 | $3M | 0.1% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP added | 17,637 | $3M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 17,039 | $2M | 0.1% | 2026-Q2 |
| LPL Financial LLC added | 16,864 | $2M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.