Latest Period
Q4 2025
Security Snapshot
IMPINJ INC - Common Stock (PI) Institutional Ownership
CUSIP: 453204109
13F Institutional Holders and Ownership History from Q3 2016 to Q1 2026
Institutions Reporting
325
Shares (Excl. Options)
32,064,600
Price
$174.01
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- Type / Class
- Equity / Common Stock
- Symbol
- PI on Nasdaq
- Shares outstanding
- 30,273,804
- Price per share
- $101.94
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 32,064,600
- Total reported value
- $5,588,015,165
- % of total 13F portfolios
- 0.01%
- Share change
- +469,167
- Value change
- +$87,074,209
- Number of holders
- 325
- Price from insider filings
- $101.94
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- PI - IMPINJ INC - Common Stock is tracked under CUSIP 453204109.
- 325 institutions reported positions in Q4 2025.
- 3 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 325 to 72 between Q4 2025 and Q1 2026.
- Reported value moved from $5,588,015,165 to $106,194,632.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 325 institutions filings for Q4 2025.
Investment Quick Answers
What is CUSIP 453204109?
CUSIP 453204109 identifies PI - IMPINJ INC - Common Stock in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 453204109:
Significant Owners of IMPINJ INC - Common Stock (PI) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7.2% | $222,302,058 | 2,164,577 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| 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 31 Dec 2025, 325 institutional investors reported holding 32,064,600 shares of IMPINJ INC - Common Stock (PI). This represents 106% of the company’s total 30,273,804 outstanding shares.
Top 25 Institutional Shareholders
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 | 15% | 4,500,084 | +3.7% | 0.04% | $783,059,566 |
| BlackRock, Inc. | 14% | 4,266,969 | +4.1% | 0.01% | $742,495,275 |
| VANGUARD GROUP INC | 11% | 3,465,949 | +2.5% | 0.01% | $603,109,786 |
| Capital International Investors | 5.2% | 1,564,251 | 0% | 0.04% | $272,195,317 |
| Invesco Ltd. | 4.3% | 1,287,879 | +6.5% | 0.03% | $224,103,824 |
| STATE STREET CORP | 4.2% | 1,276,893 | +11% | 0.01% | $222,192,151 |
| SYLEBRA CAPITAL LLC | 3.7% | 1,132,152 | -38% | 17% | $197,005,770 |
| Whale Rock Capital Management LLC | 2.9% | 887,272 | -28% | 2% | $154,394,201 |
| AMERIPRISE FINANCIAL INC | 2.8% | 841,060 | +26% | 0.03% | $146,353,171 |
| Capital World Investors | 2.5% | 754,346 | 0% | 0.02% | $131,263,747 |
| Driehaus Capital Management LLC | 2.4% | 737,474 | +43% | 0.87% | $128,327,851 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.3% | 692,596 | +2.7% | 0.01% | $120,519,000 |
| Chevy Chase Trust Holdings, LLC | 2.3% | 681,915 | -1.4% | 0.32% | $118,660,027 |
| AMERICAN CENTURY COMPANIES INC | 2.2% | 679,585 | +79% | 0.06% | $118,255,014 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2% | 667,647 | +6.8% | 0.01% | $116,195,337 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.2% | 349,828 | -2.7% | 0.01% | $60,873,571 |
| UBS Group AG | 1.1% | 328,972 | -6.2% | 0.01% | $57,244,418 |
| NORGES BANK | 1% | 317,313 | 0.01% | $55,215,635 | |
| NORTHERN TRUST CORP | 0.95% | 288,974 | -5.8% | 0.01% | $50,284,366 |
| GOLDMAN SACHS GROUP INC | 0.95% | 286,364 | +6.9% | 0.01% | $49,830,250 |
| MORGAN STANLEY | 0.9% | 271,747 | -60% | 0% | $47,286,803 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.88% | 266,040 | +3.9% | 0.01% | $46,293,620 |
| JENNISON ASSOCIATES LLC | 0.8% | 242,504 | -2% | 0.03% | $42,198,124 |
| Nuveen, LLC | 0.71% | 214,861 | -14% | 0.01% | $37,387,963 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 0.7% | 212,003 | +5.7% | 0.1% | $36,890,642 |
Institutional Holders of IMPINJ INC - Common Stock (PI) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 1,034,918 | $106,194,632 | +$22,423,541 | $102.70 | 72 |
| 2025 Q4 | 32,064,600 | $5,588,015,165 | +$87,074,209 | $174.01 | 325 |
| 2025 Q3 | 31,597,651 | $5,710,335,811 | +$71,545,662 | $180.75 | 321 |
| 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 |