| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Capital International Investors | 5.4% | $117,990,820 | 1,527,587 | Capital International Investors | 31 Dec 2024 | |||
| SYLEBRA CAPITAL LLC | 3.8% | -25% | $195,647,187 | -$64,324,202 | 1,132,152 | -25% | SYLEBRA CAPITAL LLC | 15 Dec 2025 |
As of 30 Sep 2025, 318 institutional investors reported holding 31,597,446 shares of IMPINJ INC - Common Stock (PI). This represents 105% of the company’s total 30,110,426 outstanding shares.
The largest institutional shareholders of IMPINJ INC - Common Stock (PI) together control 87% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| FMR LLC | 14% | 4,338,545 | +0.39% | 0.04% | $784,191,972 |
| BlackRock, Inc. | 14% | 4,098,352 | +5.9% | 0.01% | $740,777,127 |
| VANGUARD GROUP INC | 11% | 3,380,067 | -4% | 0.01% | $610,947,111 |
| SYLEBRA CAPITAL LLC | 6.1% | 1,829,260 | -14% | 18% | $330,638,745 |
| Capital International Investors | 5.2% | 1,564,251 | 0% | 0.05% | $282,738,368 |
| Whale Rock Capital Management LLC | 4.1% | 1,224,585 | +38% | 2.6% | $221,343,739 |
| Invesco Ltd. | 4% | 1,209,292 | +48% | 0.03% | $218,579,531 |
| STATE STREET CORP | 3.8% | 1,152,101 | -5.2% | 0.01% | $208,242,256 |
| Capital World Investors | 2.5% | 754,346 | 0% | 0.02% | $136,348,040 |
| Chevy Chase Trust Holdings, LLC | 2.3% | 691,294 | -6.6% | 0.34% | $124,951,391 |
| MORGAN STANLEY | 2.3% | 680,702 | -10% | 0.01% | $123,037,101 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.2% | 674,333 | +51% | 0.01% | $121,887,000 |
| AMERIPRISE FINANCIAL INC | 2.2% | 667,592 | +4% | 0.03% | $120,667,486 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.1% | 624,855 | +4.7% | 0.01% | $112,958,751 |
| Driehaus Capital Management LLC | 1.7% | 514,500 | 0.67% | $92,995,875 | |
| AMERICAN CENTURY COMPANIES INC | 1.3% | 380,593 | +24% | 0.04% | $68,792,524 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 1.2% | 359,360 | -48% | 0.01% | $64,954,322 |
| UBS Group AG | 1.2% | 350,650 | +19% | 0.01% | $63,379,988 |
| NORTHERN TRUST CORP | 1% | 306,780 | +1.1% | 0.01% | $55,450,486 |
| GOLDMAN SACHS GROUP INC | 0.89% | 267,842 | +2.8% | 0.01% | $48,412,493 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.85% | 256,158 | +12% | 0.01% | $46,300,559 |
| JANUS HENDERSON GROUP PLC | 0.83% | 250,489 | -38% | 0.02% | $45,315,965 |
| Nuveen, LLC | 0.83% | 248,909 | -12% | 0.01% | $44,990,303 |
| JENNISON ASSOCIATES LLC | 0.82% | 247,545 | -0.58% | 0.03% | $44,743,763 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 0.67% | 200,605 | 0.09% | $36,259,354 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 365,187 | $64,804,006 | +$10,684,402 | $174.01 | 33 |
| 2025 Q3 | 31,597,446 | $5,710,298,758 | +$71,521,235 | $180.75 | 318 |
| 2025 Q2 | 31,351,260 | $3,482,559,341 | +$104,186,812 | $111.07 | 292 |
| 2025 Q1 | 30,660,485 | $2,780,876,142 | -$86,256,243 | $90.70 | 271 |
| 2024 Q4 | 30,631,229 | $4,451,250,370 | +$31,370,035 | $145.26 | 315 |
| 2024 Q3 | 29,944,669 | $6,484,357,353 | +$124,267,249 | $216.52 | 324 |
| 2024 Q2 | 27,859,235 | $4,367,217,733 | +$35,916,299 | $156.77 | 271 |
| 2024 Q1 | 27,919,174 | $3,585,238,704 | +$35,056,367 | $128.41 | 228 |
| 2023 Q4 | 11,949 | $1,075,769 | -$1,494,437 | $90.03 | 2 |
| 2023 Q3 | 30,957,552 | $1,703,304,108 | -$72,342,370 | $55.03 | 188 |
| 2023 Q2 | 26,875,523 | $2,408,240,801 | -$48,091,699 | $89.65 | 215 |
| 2023 Q1 | 26,628,076 | $3,608,595,333 | +$211,830,036 | $135.52 | 254 |
| 2022 Q4 | 25,123,911 | $2,743,480,571 | -$23,929,801 | $109.18 | 233 |
| 2022 Q3 | 24,517,958 | $1,962,181,549 | +$119,829,530 | $80.03 | 179 |
| 2022 Q2 | 23,100,945 | $1,355,374,796 | +$75,018,408 | $58.67 | 146 |
| 2022 Q1 | 21,757,123 | $1,382,360,102 | +$5,603,007 | $63.54 | 172 |
| 2021 Q4 | 21,270,805 | $1,886,070,872 | +$2,624,304 | $88.70 | 170 |
| 2021 Q3 | 21,225,448 | $1,212,246,411 | -$3,429,512 | $57.13 | 153 |
| 2021 Q2 | 21,312,581 | $1,099,365,650 | -$42,093,334 | $51.59 | 158 |
| 2021 Q1 | 22,057,929 | $1,254,265,485 | +$96,362,316 | $56.87 | 158 |
| 2020 Q4 | 20,292,060 | $849,518,651 | +$34,970,811 | $41.87 | 144 |
| 2020 Q3 | 19,743,549 | $520,340,078 | +$21,090,223 | $26.35 | 126 |
| 2020 Q2 | 18,648,125 | $512,292,215 | +$57,841 | $27.47 | 133 |
| 2020 Q1 | 19,097,087 | $319,047,444 | -$10,914,022 | $16.71 | 128 |
| 2019 Q4 | 18,640,082 | $482,130,685 | +$34,059,232 | $25.86 | 140 |
| 2019 Q3 | 16,893,765 | $520,819,569 | +$52,325,194 | $30.83 | 140 |
| 2019 Q2 | 15,228,340 | $435,828,748 | +$44,428,302 | $28.62 | 125 |
| 2019 Q1 | 13,139,575 | $220,151,037 | -$2,771,175 | $16.75 | 98 |
| 2018 Q4 | 13,942,789 | $202,868,671 | -$5,398,418 | $14.55 | 93 |
| 2018 Q3 | 13,647,675 | $338,784,310 | -$32,958,983 | $24.82 | 101 |
| 2018 Q2 | 15,035,980 | $332,433,104 | +$590,765 | $22.11 | 93 |
| 2018 Q1 | 15,004,549 | $195,354,942 | -$38,197,977 | $13.02 | 102 |
| 2017 Q4 | 16,824,391 | $379,045,042 | -$38,738,077 | $22.53 | 105 |
| 2017 Q3 | 17,358,553 | $721,963,977 | +$83,086,118 | $41.61 | 134 |
| 2017 Q2 | 15,038,784 | $731,802,077 | -$24,074,265 | $48.65 | 130 |
| 2017 Q1 | 16,141,333 | $488,574,630 | +$198,241,721 | $30.27 | 117 |
| 2016 Q4 | 9,830,628 | $347,402,482 | +$193,007,368 | $35.34 | 88 |
| 2016 Q3 | 4,332,786 | $161,799,801 | +$161,799,812 | $37.42 | 54 |