| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Capital International Investors | 5.4% | $138,766,003 | 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, 317 institutional investors reported holding 31,565,394 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 | 353,909 | $62,984,232 | +$10,824,696 | $174.01 | 25 |
| 2025 Q3 | 31,565,394 | $5,704,505,758 | +$65,871,586 | $180.75 | 317 |
| 2025 Q2 | 31,351,148 | $3,482,534,018 | +$104,199,931 | $111.07 | 291 |
| 2025 Q1 | 30,665,744 | $2,781,353,100 | -$86,256,267 | $90.70 | 272 |
| 2024 Q4 | 30,635,832 | $4,451,919,430 | +$10,902,483 | $145.26 | 316 |
| 2024 Q3 | 30,085,641 | $6,514,880,650 | +$155,241,533 | $216.52 | 319 |
| 2024 Q2 | 27,857,152 | $4,366,891,297 | +$35,116,879 | $156.77 | 270 |
| 2024 Q1 | 27,919,173 | $3,585,238,798 | +$11,866,385 | $128.41 | 223 |
| 2023 Q4 | 27,964,822 | $2,517,692,011 | +$122,566,401 | $90.03 | 194 |
| 2023 Q3 | 31,070,964 | $1,709,544,816 | -$78,544,459 | $55.03 | 189 |
| 2023 Q2 | 27,101,638 | $2,428,511,662 | -$19,466,539 | $89.65 | 216 |
| 2023 Q1 | 26,628,076 | $3,608,594,883 | +$211,531,471 | $135.52 | 254 |
| 2022 Q4 | 25,131,911 | $2,744,353,600 | -$17,551,012 | $109.18 | 234 |
| 2022 Q3 | 25,263,071 | $2,021,813,789 | +$175,181,527 | $80.03 | 182 |
| 2022 Q2 | 23,257,104 | $1,364,535,796 | +$83,234,618 | $58.67 | 148 |
| 2022 Q1 | 21,811,668 | $1,386,817,102 | +$6,279,260 | $63.54 | 175 |
| 2021 Q4 | 21,465,592 | $1,903,145,872 | -$11,554,157 | $88.70 | 173 |
| 2021 Q3 | 21,210,127 | $1,211,650,981 | -$5,006,026 | $57.13 | 154 |
| 2021 Q2 | 21,335,649 | $1,100,575,583 | -$45,374,990 | $51.59 | 160 |
| 2021 Q1 | 22,064,677 | $1,254,649,399 | +$94,138,797 | $56.87 | 159 |
| 2020 Q4 | 20,578,421 | $861,507,584 | +$37,305,480 | $41.87 | 148 |
| 2020 Q3 | 19,750,449 | $520,521,588 | +$21,126,166 | $26.35 | 129 |
| 2020 Q2 | 18,886,100 | $518,827,984 | +$692,989 | $27.47 | 137 |
| 2020 Q1 | 19,111,414 | $319,287,953 | -$16,785,363 | $16.71 | 131 |
| 2019 Q4 | 18,861,689 | $487,862,116 | +$34,761,260 | $25.86 | 144 |
| 2019 Q3 | 17,084,419 | $526,698,569 | +$52,116,886 | $30.83 | 142 |
| 2019 Q2 | 15,432,056 | $441,659,748 | +$45,991,854 | $28.62 | 127 |
| 2019 Q1 | 13,340,161 | $223,512,037 | -$2,664,651 | $16.75 | 100 |
| 2018 Q4 | 14,141,261 | $205,756,671 | -$13,687,716 | $14.55 | 95 |
| 2018 Q3 | 13,854,606 | $343,920,310 | -$33,313,922 | $24.82 | 102 |
| 2018 Q2 | 15,037,970 | $332,476,104 | +$3,804,759 | $22.11 | 95 |
| 2018 Q1 | 15,226,478 | $198,243,942 | -$38,197,943 | $13.02 | 105 |
| 2017 Q4 | 16,824,428 | $379,046,042 | -$49,662,266 | $22.53 | 106 |
| 2017 Q3 | 17,358,553 | $721,963,977 | +$83,090,102 | $41.61 | 134 |
| 2017 Q2 | 15,072,688 | $733,450,077 | -$22,662,747 | $48.65 | 132 |
| 2017 Q1 | 16,141,333 | $488,574,630 | +$198,084,820 | $30.27 | 117 |
| 2016 Q4 | 9,834,960 | $347,555,482 | +$192,789,684 | $35.34 | 89 |
| 2016 Q3 | 4,332,786 | $162,137,463 | +$162,137,463 | $37.42 | 54 |