Latest Period
Q1 2026
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
288
Shares (Excl. Options)
31,771,480
Price
$102.70
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- Security type / class
- Equity / Common Stock
- Symbol
- PI on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 31,771,480
- Total 13F value
- $3,261,337,357
- Portfolio coverage rank
- 0%
- Share change
- -312,080
- Value change
- -$148,972,768
- Number of holders
- 288
- Shares outstanding
- 30,052,889
- SEC-reported price per share
- $132.74
- Insider filing price
- $132.74
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- PI - IMPINJ INC - Common Stock is tracked under CUSIP 453204109.
- 288 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 328 to 288 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $5,594,808,863 to $3,261,337,357.
Research use
- 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.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 288 institutions filings for Q1 2026.
Security key
453204109
Latest holder period
Q1 2026
13F holders
288
13D/G owners
3
CIK / CUSIP context first
Open Q1 2026 holders
PI full holder history
IMPINJ INC SEC filings
IMPINJ INC company facts
IMPINJ INC insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 453204109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
3
Security
PI
| 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 | 4.5% | -18% | $137,861,617 | -$17,860,602 | 1,352,380 | -11% | Capital International Investors | 31 Mar 2026 |
| 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 Mar 2026, 288 institutional investors reported holding 31,771,480 shares of IMPINJ INC - Common Stock (PI). This represents 106% of the company’s total 30,052,889 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
83%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 14% | 4,313,504 | +1.1% | 0.01% | $442,996,860 |
| FMR LLC | 14% | 4,280,553 | -4.9% | 0.02% | $439,612,783 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 7.1% | 2,140,158 | 0% | 0.01% | $219,794,227 |
| STATE STREET CORP | 4.9% | 1,484,868 | +16% | 0.01% | $152,495,944 |
| Capital International Investors | 4.5% | 1,352,380 | -14% | 0.03% | $138,889,426 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.2% | 1,265,710 | 0% | 0% | $129,988,417 |
| SYLEBRA CAPITAL LLC | 3.8% | 1,132,152 | 0% | 15% | $116,272,010 |
| Capital World Investors | 3.4% | 1,016,052 | +35% | 0.01% | $104,348,540 |
| AMERIPRISE FINANCIAL INC | 2.9% | 858,281 | +2% | 0.02% | $88,145,712 |
| AMERICAN CENTURY COMPANIES INC | 2.7% | 817,992 | +20% | 0.04% | $84,008,028 |
| Alyeska Investment Group, L.P. | 2.4% | 734,787 | 0.21% | $75,462,625 | |
| Chevy Chase Trust Holdings, LLC | 2.4% | 728,395 | +6.8% | 0.22% | $74,806,166 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3% | 681,968 | +2.1% | 0% | $70,050,876 |
| UBS Group AG | 1.7% | 518,074 | +57% | 0.01% | $53,206,200 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 1.7% | 517,826 | +48% | 0.01% | $53,180,732 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 1.4% | 425,945 | +2441% | 0.04% | $43,744,552 |
| Whale Rock Capital Management LLC | 1.3% | 405,244 | -54% | 0.54% | $41,618,559 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1% | 305,729 | -56% | 0% | $31,400,000 |
| T. Rowe Price Investment Management, Inc. | 1% | 300,080 | +63% | 0.02% | $30,819,000 |
| Nuveen, LLC | 0.99% | 297,522 | +38% | 0.01% | $30,555,510 |
| NORTHERN TRUST CORP | 0.98% | 295,404 | +2.2% | 0% | $30,337,991 |
| Point72 Asset Management, L.P. | 0.96% | 289,131 | 0.05% | $29,693,754 | |
| GOLDMAN SACHS GROUP INC | 0.91% | 274,720 | -4.1% | 0% | $28,213,773 |
| MORGAN STANLEY | 0.9% | 271,477 | -0.1% | 0% | $27,880,749 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.87% | 262,744 | -1.2% | 0% | $26,983,809 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
39
Latest
Q1 2026
Rows shown
1-25 of 39
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 31,771,480 | $3,261,337,357 | -$148,972,768 | $102.70 | 288 |
| 2025 Q4 | 32,103,642 | $5,594,808,863 | +$87,074,383 | $174.01 | 328 |
| 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 |