IMPINJ INC PI
COM · Common Stock · CUSIP 453204109 · ISIN US4532041096
American manufacturer of RFID devices
- SectorTechnology
- IndustryElectronic Components, NEC
- HeadquartersSeattle, WA
- Founded2000
- Websiteimpinj.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.3m this quarter). Holder counts are more reliable. Shares outstanding: 30.6m as of 2026-07-17, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $143.05. Options: 12 managers hold calls ($51.4m notional), 11 hold puts ($22.5m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 192 |
| Q4 2022 | 242 |
| Q1 2023 | 263 |
| Q2 2023 | 224 |
| Q3 2023 | 194 |
| Q4 2023 | 200 |
| Q1 2024 | 229 |
| Q2 2024 | 274 |
| Q3 2024 | 324 |
| Q4 2024 | 319 |
| Q1 2025 | 277 |
| Q2 2025 | 294 |
| Q3 2025 | 323 |
| Q4 2025 | 328 |
| Q1 2026 | 291 |
| Q2 2026 | 317 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 205 | 124 |
| Q4 2024 | 181 | 165 |
| Q1 2025 | 159 | 164 |
| Q2 2025 | 195 | 112 |
| Q3 2025 | 159 | 163 |
| Q4 2025 | 178 | 146 |
| Q1 2026 | 162 | 163 |
| Q2 2026 | 181 | 121 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $63.5m | $25.2m | 0.40 |
| Q4 2025 | $57.0m | $30.3m | 0.53 |
| Q1 2026 | $34.7m | $28.2m | 0.81 |
| Q2 2026 | $51.4m | $22.5m | 0.44 |
Biggest buyers
| MILLENNIUM MANAGEMENT LLC | Added | +732.1k |
| Broad Bay Capital Management, LP | New | +328.7k |
| FMR LLC | Added | +282.2k |
| WESTFIELD CAPITAL MANAGEMENT CO LP | New | +270.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Added | +243.4k |
| STATE STREET CORP | Added | +215.7k |
| BlackRock, Inc. | Added | +135.9k |
| Point72 Asset Management, L.P. | Added | +119.2k |
| GOLDMAN SACHS GROUP INC | Added | +114.1k |
| Capital World Investors | Added | +108.0k |
Biggest sellers
| Alyeska Investment Group, L.P. | Sold out | -734.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | -413.1k |
| SYLEBRA CAPITAL LLC | Reduced | -356.2k |
| AMERIPRISE FINANCIAL INC | Reduced | -327.4k |
| Polar Asset Management Partners Inc. | Sold out | -136.7k |
| OBERWEIS ASSET MANAGEMENT INC/ | Sold out | -118.1k |
| T. Rowe Price Investment Management, Inc. | Reduced | -107.1k |
| WELLINGTON MANAGEMENT GROUP LLP | Sold out | -105.4k |
| UBS Group AG | Reduced | -103.7k |
| Fiera Capital Corp | Reduced | -87.1k |
Biggest calls
| UBS Group AG | Unchanged | $20.4m142.1k shares |
| CITADEL ADVISORS LLC | Added | $12.7m88.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $6.6m45.9k shares |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $4.3m30.0k shares |
| IMC-Chicago, LLC | Added | $4.2m29.0k shares |
| JANE STREET GROUP, LLC | Reduced | $1.9m13.3k shares |
| Point72 Asset Management, L.P. | Reduced | $601.6k4.2k shares |
| HRT FINANCIAL LP | New | $415.0k2.9k shares |
| Walleye Trading LLC | Added | $272.1k1.9k shares |
| Walleye Capital LLC | Reduced | $100.3k700 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $9.1m63.6k shares |
| CITADEL ADVISORS LLC | Reduced | $5.8m40.3k shares |
| IMC-Chicago, LLC | Reduced | $2.7m19.1k shares |
| D. E. Shaw & Co., Inc. | Reduced | $1.6m11.1k shares |
| Twin Tree Management, LP | Unchanged | $1.3m9.1k shares |
| JANE STREET GROUP, LLC | Reduced | $959.6k6.7k shares |
| Point72 Asset Management, L.P. | Reduced | $859.4k6.0k shares |
| CAPTRUST FINANCIAL ADVISORS | New | $71.6k500 shares |
| Walleye Capital LLC | Unchanged | $71.6k500 shares |
| Walleye Trading LLC | Reduced | $28.6k200 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2026-10-27 | 14.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 7.2% |
| STATE STREET CORP 13G · institution new · filed 2026-08-07 | 5.6% |
Fell to 5% or below in the last year: Capital International Investors (4.5%, 2026-05-14), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), SYLEBRA CAPITAL LLC (3.8%, 2025-12-17)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 6 | $237.3m | $2.8m |
| Q1 2025 | 0 | — | 5 | $1.9m | — |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 2 | $66.2m | $7.3m |
| Q4 2025 | 0 | — | 2 | $110.6m | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 1 | $50.3m | — |
| Q3 2026 | 0 | — | 2 | $2.0m | $1.9m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-21 | Baker Cary CHIEF FINANCIAL OFFICER | Sold plan | $1.6m8.9k shares |
| 2026-09-15 | WASHINGTON MIRON Director | Sold | $138.6k800 shares |
| 2026-08-10 | Baker Cary CHIEF FINANCIAL OFFICER | Sold plan | $264.4k1.4k shares |
| 2026-06-09 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $2.4m19.1k shares |
| 2026-06-08 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $5.9m45.5k shares |
| 2026-06-05 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $5.9m47.5k shares |
| 2026-06-04 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $4.6m33.4k shares |
| 2026-06-03 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $878.6k6.3k shares |
| 2026-06-02 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $5.5m38.7k shares |
| 2026-06-01 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $1.0m7.2k shares |
| 2026-05-29 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $7.3m48.5k shares |
| 2026-05-11 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $5.7m36.8k shares |
| 2026-05-08 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $5.6m37.0k shares |
| 2026-05-08 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $4.0m25.9k shares |
| 2026-05-07 | SYLEBRA CAPITAL LLC Director · See Footnote (1) (2) | Sold | $5.5m36.2k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| FMR LLC 0.03% of their portfolio | 4.6m $653.5m | Added +282.2k |
| BlackRock, Inc. 0.01% of their portfolio | 4.4m $637.3m | Added +135.9k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 2.2m $314.3m | Added +54.1k |
| STATE STREET CORP 0.01% of their portfolio | 1.7m $243.6m | Added +215.7k |
| Capital International Investors 0.04% of their portfolio | 1.4m $206.7m | Added +91.1k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.3m $183.7m | Added +17.0k |
| Capital World Investors 0.02% of their portfolio | 1.1m $161.0m | Added +108.0k |
| MILLENNIUM MANAGEMENT LLC 0.08% of their portfolio | 834.4k $119.5m | Added +732.1k |
| AMERICAN CENTURY COMPANIES INC 0.05% of their portfolio | 804.3k $115.2m | Reduced -13.7k |
| SYLEBRA CAPITAL LLC 11.77% of their portfolio | 775.9k $111.1m | Reduced -356.2k |
| Chevy Chase Trust Holdings, LLC 0.27% of their portfolio | 737.1k $105.6m | Added +8.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 733.6k $105.1m | Added +51.6k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.07% of their portfolio | 669.3k $95.9m | Added +243.4k |
| AMERIPRISE FINANCIAL INC 0.02% of their portfolio | 530.9k $76.0m | Reduced -327.4k |
| UBS Group AG 0.01% of their portfolio | 414.4k $59.4m | Reduced -103.7k |
| Point72 Asset Management, L.P. 0.09% of their portfolio | 408.3k $58.5m | Added +119.2k |
| Whale Rock Capital Management LLC 0.47% of their portfolio | 405.2k $58.0m | Unchanged |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 388.8k $55.7m | Added +114.1k |
| MORGAN STANLEY 0.00% of their portfolio | 360.5k $51.6m | Added +89.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 357.1k $51.1m | Added +51.3k |
| Nuveen, LLC 0.01% of their portfolio | 347.9k $49.8m | Added +50.3k |
| Broad Bay Capital Management, LP 4.46% of their portfolio | 328.7k $47.1m | New |
| NORTHERN TRUST CORP 0.01% of their portfolio | 320.1k $45.8m | Added +24.6k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.13% of their portfolio | 296.8k $42.5m | Added +40.6k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 277.5k $39.8m | Added +14.8k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.13% of their portfolio | 270.6k $38.8m | New |
| AWM Investment Company, Inc. 2.57% of their portfolio | 207.0k $29.7m | Unchanged |
| ROYCE & ASSOCIATES LP 0.23% of their portfolio | 203.1k $29.1m | Added +4.1k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 197.5k $28.3m | Added +7.5k |
| T. Rowe Price Investment Management, Inc. 0.02% of their portfolio | 192.9k $27.6m | Reduced -107.1k |
| NORGES BANK 0.00% of their portfolio | 186.2k $26.7m | Not comparable |
| Rockefeller Capital Management L.P. 0.04% of their portfolio | 181.5k $26.0m | Added +3.7k |
| EMERALD ADVISERS, LLC 0.60% of their portfolio | 176.8k $25.3m | Reduced -4.8k |
| VOYA INVESTMENT MANAGEMENT LLC 0.02% of their portfolio | 170.7k $24.4m | Reduced -514 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.02% of their portfolio | 164.9k $23.6m | Added +3.9k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 161.9k $23.2m | Added +18.1k |
| FRED ALGER MANAGEMENT, LLC 0.08% of their portfolio | 160.0k $22.9m | Reduced -55.0k |
| Allspring Global Investments Holdings, LLC 0.03% of their portfolio | 157.3k $22.6m | Reduced -24.6k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 156.7k $22.4m | Added +11.7k |
| BAILLIE GIFFORD & CO 0.02% of their portfolio | 156.0k $22.3m | Reduced -18.1k |
| Aberdeen Group plc 0.03% of their portfolio | 153.5k $22.0m | Reduced -2.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 132.7k $19.0m | Added +1.0k |
| Squarepoint Ops LLC 0.03% of their portfolio | 116.8k $16.7m | Added +65.7k |
| Fiera Capital Corp 0.06% of their portfolio | 116.0k $16.6m | Reduced -87.1k |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.56% of their portfolio | 111.3k $15.9m | Unchanged |
| Tidal Investments LLC 0.04% of their portfolio | 110.3k $15.8m | Added +15.0k |
| JENNISON ASSOCIATES LLC 0.01% of their portfolio | 105.6k $15.1m | Reduced -3.2k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 104.7k $15.0m | Reduced -413.1k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 104.1k $14.9m | Added +7.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 102.1k $13.8m | Reduced -2.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 95.8k $13.7m | Reduced -12.3k |
| Public Sector Pension Investment Board 0.03% of their portfolio | 93.1k $13.3m | Reduced -3.3k |
| Invesco Ltd. 0.00% of their portfolio | 93.0k $13.3m | Added +10.1k |
| ExodusPoint Capital Management, LP 0.12% of their portfolio | 89.0k $12.7m | Added +57.5k |
| CAPTRUST FINANCIAL ADVISORS 0.02% of their portfolio | 87.5k $12.5m | Added +72.9k |
| Stephens Investment Management Group LLC 0.13% of their portfolio | 82.9k $11.9m | Added +3.4k |
| PEREGRINE INVESTMENT MANAGEMENT INC 4.33% of their portfolio | 71.0k $10.2m | Added +518 |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 67.9k $9.7m | Added +38.3k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 65.4k $9.4m | Reduced -7.0k |
| Legal & General Group Plc 0.00% of their portfolio | 62.4k $8.9m | Added +609 |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 62.1k $8.9m | Added +56.3k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 0.23% of their portfolio | 61.5k $8.8m | New |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.18% of their portfolio | 60.8k $8.7m | Added +50.6k |
| Swiss National Bank 0.00% of their portfolio | 58.1k $8.3m | Added +1.6k |
| Weiss Asset Management LP 0.09% of their portfolio | 57.7k $8.3m | Not comparable |
| RIVERBRIDGE PARTNERS LLC 0.22% of their portfolio | 56.0k $8.0m | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 55.7k $8.0m | Added +1.8k |
| Man Group plc 0.01% of their portfolio | 48.8k $7.0m | Reduced -17.7k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 47.8k $6.8m | Reduced -8.4k |
| SEGALL BRYANT & HAMILL, LLC 0.08% of their portfolio | 47.8k $6.8m | Added +831 |
| Granite Investment Partners, LLC 0.35% of their portfolio | 47.6k $6.8m | Reduced -23 |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 47.5k $6.8m | Added +189 |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 42.3k $6.1m | Added +420 |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.11% of their portfolio | 42.3k $6.1m | Added +30.3k |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.01% of their portfolio | 41.6k $6.0m | Added +1.5k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 39.9k $5.7m | Added +39.8k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 38.3k $5.5m | Reduced -8.2k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio | 38.0k $5.4m | Added +6.9k |
| Z3 Capital Partners, LLC 1.13% of their portfolio | 37.7k $5.4m | Added +1.4k |
| Polar Capital Holdings Plc 0.02% of their portfolio | 37.6k $5.4m | Added +27.9k |
| Toronado Partners, LLC 15.09% of their portfolio | 37.5k $5.4m | Reduced -32.8k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% of their portfolio | 36.9k $5.3m | Reduced -424 |
| CITIGROUP INC 0.00% of their portfolio | 36.3k $5.2m | Added +7.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 36.0k $3.7m | Reduced -60.9k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 34.3k $4.9m | Added +436 |
| ARDSLEY ADVISORY PARTNERS LP 0.51% of their portfolio | 33.0k $4.7m | Added +21.5k |
| GILDER GAGNON HOWE & CO LLC 0.05% of their portfolio | 31.8k $4.6m | Added +6.3k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 28.3k $4.0m | Added +281 |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 26.7k $3.8m | Added +1.9k |
| COOPER CREEK PARTNERS MANAGEMENT LLC 0.15% of their portfolio | 25.9k $3.7m | Unchanged |
| KENNEDY CAPITAL MANAGEMENT LLC 0.06% of their portfolio | 25.6k $3.7m | Reduced -2.2k |
| GFS Advisors, LLC 0.00% of their portfolio | 25.0k $1.4k | New |
| Jupiter Topco LLC 0.00% of their portfolio | 24.4k $3.5m | First filing |
| IRONWOOD INVESTMENT MANAGEMENT LLC 1.15% of their portfolio | 23.3k $3.3m | Added +552 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 22.5k $3.2m | Reduced -42 |
| BESSEMER GROUP INC 0.00% of their portfolio | 22.2k $3.2m | Added +95 |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 22.0k $3.1m | Reduced -565 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 20.5k $2.9m | Added +874 |
| Taylor Frigon Capital Management LLC 1.32% of their portfolio | 19.7k $2.8m | Added +2 |
| Creative Planning 0.00% of their portfolio | 19.1k $2.7m | Added +821 |