PI Institutional Ownership & Shareholders
IMPINJ INC (PI) is currently held by 319 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $4.74B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Fmr Llc is currently the largest disclosed institutional shareholder of PI tracked by InsiderSet, reporting ownership valued at approximately $653.53M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $819.75M, representing an estimated gain of +25.43% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 58% of the total disclosed PI value among the investors covered in this analysis. Major shareholders include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in IMPINJ INC (PI).
This page ranks the largest institutional PI shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
319
Total Reported Value
$4.74B
Largest Holder
Fmr Llc
Largest Position
$653.53M
Insider Transactions (90d)
18
Latest Filing Quarter
Q2 2026
New Institutional Positions
54
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Fmr Llc | 0.03% | 4,562,799 | $653,529,757 | $819,752,468 | +$166,222,711 | +25.43% | |
| Blackrock, Inc. | 0.01% | 4,449,389 | $637,285,987 | $799,377,228 | +$162,091,241 | +25.43% | |
| Vanguard Portfolio Management Llc | 0.01% | 2,194,236 | $314,280,422 | $394,216,440 | +$79,936,018 | +25.43% | |
| State Street Corp | 0.01% | 1,700,585 | $243,574,790 | $305,527,101 | +$61,952,311 | +25.43% | |
| Capital International Investors | 0.04% | 1,443,452 | $206,745,630 | $259,330,586 | +$52,584,956 | +25.43% | |
| Vanguard Capital Management Llc | 0.00% | 1,282,667 | $183,716,394 | $230,443,953 | +$46,727,559 | +25.43% | |
| Capital World Investors | 0.02% | 1,124,066 | $160,999,973 | $201,949,698 | +$40,949,725 | +25.43% | |
| Millennium Management Llc | 0.08% | 834,376 | $119,507,674 | $149,903,992 | +$30,396,318 | +25.43% | |
| American Century Companies Inc | 0.05% | 804,335 | $115,205,209 | $144,506,826 | +$29,301,617 | +25.43% | |
| Sylebra Capital Llc | 11.77% | 775,943 | $111,138,316 | $139,405,919 | +$28,267,603 | +25.43% | |
| Chevy Chase Trust Holdings, Llc | 0.27% | 737,138 | $105,580,275 | $132,434,213 | +$26,853,938 | +25.43% | |
| Geode Capital Management, Llc | 0.01% | 733,594 | $105,091,270 | $131,797,498 | +$26,706,228 | +25.41% | |
| Manufacturers Life Insurance Company, The | 0.07% | 669,324 | $95,867,277 | $120,250,750 | +$24,383,473 | +25.43% | |
| Ameriprise Financial Inc | 0.02% | 530,926 | $76,044,545 | $95,386,165 | +$19,341,620 | +25.43% | |
| Ubs Group Ag | 0.01% | 414,418 | $59,357,091 | $74,454,338 | +$15,097,247 | +25.43% | |
| Point72 Asset Management, L.P. | 0.09% | 408,333 | $58,485,536 | $73,361,107 | +$14,875,571 | +25.43% | |
| Whale Rock Capital Management | Alex Sacerdote | 0.47% | 405,244 | $58,043,098 | $72,806,137 | +$14,763,039 | +25.43% |
| Goldman Sachs Group Inc | 0.01% | 388,783 | $55,685,430 | $69,848,754 | +$14,163,324 | +25.43% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.01% | 517,826 | $53,180,732 | $93,032,619 | +$39,851,887 | +74.94% | |
| Morgan Stanley | 0.00% | 360,534 | $51,639,396 | $64,773,538 | +$13,134,142 | +25.43% | |
| Price T Rowe Associates Inc | 0.01% | 357,059 | $51,143,000 | $64,149,220 | +$13,006,220 | +25.43% | |
| Nuveen, Llc | 0.01% | 347,867 | $49,824,990 | $62,497,785 | +$12,672,795 | +25.43% | |
| Broad Bay Capital Management, Lp | 4.46% | 328,700 | $47,079,701 | $59,054,242 | +$11,974,541 | +25.43% | |
| Northern Trust Corp | 0.01% | 320,053 | $45,841,190 | $57,500,722 | +$11,659,532 | +25.43% | |
| William Blair Investment Management, Llc | 0.13% | 296,821 | $42,513,672 | $53,326,861 | +$10,813,189 | +25.43% | |
| Charles Schwab Investment Management Inc | 0.01% | 277,540 | $39,752,054 | $49,862,836 | +$10,110,782 | +25.43% | |
| Westfield Capital Management Co Lp | 0.13% | 270,646 | $38,764,627 | $48,624,260 | +$9,859,633 | +25.43% | |
| Awm Investment Company, Inc. | 2.57% | 207,018 | $29,651,188 | $37,192,854 | +$7,541,666 | +25.43% | |
| Royce & Associates Lp | 0.23% | 203,114 | $29,092,018 | $36,491,461 | +$7,399,443 | +25.43% | |
| Vanguard Fiduciary Trust Co | 0.01% | 197,514 | $28,289,930 | $35,485,365 | +$7,195,435 | +25.43% | |
| T. Rowe Price Investment Management, Inc. | 0.02% | 192,948 | $27,636,000 | $34,665,038 | +$7,029,038 | +25.43% | |
| Norges Bank | 0.00% | 186,182 | $26,666,848 | $33,449,458 | +$6,782,610 | +25.43% | |
| Rockefeller Capital Management L.P. | 0.04% | 181,548 | $26,003,120 | $32,616,914 | +$6,613,794 | +25.43% | |
| Emerald Advisers, Llc | 0.60% | 176,780 | $25,320,199 | $31,760,295 | +$6,440,096 | +25.43% | |
| Principal Financial Group Inc | 0.01% | 140,634 | $25,214,270 | $25,266,304 | +$52,034 | +0.21% | |
| Voya Investment Management Llc | 0.02% | 170,699 | $24,449,218 | $30,667,782 | +$6,218,564 | +25.43% | |
| Bnp Paribas Asset Management Holding S.A. | 0.02% | 164,883 | $23,616,192 | $29,622,880 | +$6,006,688 | +25.43% | |
| Bank Of New York Mellon Corp | 0.00% | 161,916 | $23,191,274 | $29,089,829 | +$5,898,555 | +25.43% | |
| Fred Alger Management, Llc | 0.08% | 159,966 | $22,911,930 | $28,739,492 | +$5,827,562 | +25.43% | |
| Neuberger Berman Group Llc | 0.02% | 130,717 | $22,746,065 | $23,484,616 | +$738,551 | +3.25% | |
| Allspring Global Investments Holdings, Llc | 0.03% | 157,343 | $22,596,028 | $28,268,243 | +$5,672,215 | +25.10% | |
| Baillie Gifford & Co | 0.02% | 155,965 | $22,338,867 | $28,020,672 | +$5,681,805 | +25.43% | |
| Aberdeen Group Plc | 0.03% | 153,502 | $21,986,091 | $27,578,169 | +$5,592,078 | +25.43% | |
| Squarepoint Ops Llc | 0.03% | 116,850 | $16,736,426 | $20,993,271 | +$4,256,845 | +25.43% | |
| Fiera Capital Corp | 0.06% | 116,009 | $16,615,969 | $20,842,177 | +$4,226,208 | +25.43% | |
| Emerald Mutual Fund Advisers Trust | 0.56% | 111,287 | $15,939,637 | $19,993,822 | +$4,054,185 | +25.43% | |
| Raymond James Financial Inc | 0.00% | 111,211 | $15,928,752 | $19,980,168 | +$4,051,416 | +25.43% | |
| Tidal Investments Llc | 0.04% | 110,251 | $15,791,251 | $19,807,695 | +$4,016,444 | +25.43% | |
| Jennison Associates Llc | 0.01% | 105,639 | $15,130,674 | $18,979,103 | +$3,848,429 | +25.43% | |
| Deutsche Bank Ag\ | 0.00% | 104,061 | $14,904,657 | $18,695,599 | +$3,790,942 | +25.43% |
Frequently asked questions about PI
Who are the largest institutional holders of PI?
The largest institutional holders of PI reported in the latest SEC Form 13F filings include Fmr Llc, Blackrock, Inc., Vanguard Portfolio Management Llc, State Street Corp, and Capital International Investors. InsiderSet ranks institutional holders by their latest reported PI position.
What is PI institutional ownership?
This page tracks PI positions reported by institutional investment managers through SEC Form 13F. IMPINJ INC (PI) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own PI?
InsiderSet currently tracks 319 institutional managers reporting PI holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of PI shareholders.
How much PI stock do institutions own?
Institutional investment managers disclosed approximately $4.74B in PI holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was PI institutional ownership last updated?
The latest PI institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional PI holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its PI position after the reporting date.
Are institutions buying or selling PI?
Institutional buying and selling can be analyzed by comparing PI positions across consecutive 13F reporting periods. InsiderSet's PI Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View PI ownership changes.
How has PI institutional ownership changed over time?
InsiderSet tracks PI institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.