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Equibles

PI

Impinj Inc

Company with tickers: PI

CIK
1114995
CUSIP
453204109
Shares Outstanding
30,459,185
13F Activity (30d)
173 filings 170 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 292
Total Value: $3,330,751,120
Total Shares: 32,431,853
Showing 1–100 of 307 holdings by value · page 1 of 4

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 292 13F filers · Δ vs Dec 31, 2025
Top Holder
13.3%
Jun 2023 → Mar 2026 · range 12.6% – 14.8%
−0.5 pts
Top 5
41.8%
Jun 2023 → Mar 2026 · range 41.8% – 51.2%
−4.5 pts
Top 10
57.5%
Jun 2023 → Mar 2026 · range 57.5% – 65.3%
−3.8 pts
HHI
523
Jun 2023 → Mar 2026 · range 523 – 645
Broadly held −74

Quarterly Activity

vs Dec 31, 2025
New
48
Increased
124
Decreased
82
Sold Out
88
Unchanged
38
Holder count: -40
Institutional value: -41.3%
Shares held: -0.5%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE +409,182 425,945
Large Point72 Asset Management, L.P. +295,131 302,431
Mega Capital World Investors +261,706 1,016,052
Mega STATE STREET CORP +207,975 1,484,868
Mega UBS Group AG +189,102 660,194

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega Invesco Ltd. −1,204,975 82,904
Mid Whale Rock Capital Management LLC −482,028 405,244
Mega PRICE T ROWE ASSOCIATES INC /MD/ −386,867 305,729
Mega FMR LLC −219,531 4,280,553
Mega Capital International Investors −211,871 1,352,380

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 2,140,158 $219,794,226
Mega VANGUARD CAPITAL MANAGEMENT LLC 1,265,710 $129,988,417
Large Alyeska Investment Group, L.P. 734,787 $75,462,624
Large Fiera Capital Corp 203,105 $20,858,883
Mega VANGUARD FIDUCIARY TRUST CO 190,035 $19,516,594

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 3,465,949 $603,109,783
Large Driehaus Capital Management LLC 737,474 $128,327,850
Mega NORGES BANK 317,313 $55,215,635
Small Aperture Investors, LLC 117,118 $20,379,703
Large CREDIT AGRICOLE S A 70,228 $12,220,374
Filter: New 48 Increased 124 Reduced 82 Sold out 88 Unchanged 38
Showing 100 of 307
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $442,996,856 13.30% 4,313,504
Mega FMR LLC $439,612,792 13.20% 4,280,553
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $219,794,226 6.60% 2,140,158
Mega STATE STREET CORP $152,495,943 4.58% 1,484,868
Mega Capital International Investors $138,889,426 4.17% 1,352,380
Mega VANGUARD CAPITAL MANAGEMENT LLC $129,988,417 3.90% 1,265,710
Small SYLEBRA CAPITAL LLC $116,272,010 3.49% 1,132,152
Mega Capital World Investors $104,348,540 3.13% 1,016,052
Mega AMERIPRISE FINANCIAL INC $88,145,457 2.65% 858,281
Mega AMERICAN CENTURY COMPANIES INC $84,007,778 2.52% 817,992
Large Alyeska Investment Group, L.P. $75,462,624 2.27% 734,787
Large Chevy Chase Trust Holdings, LLC $74,806,166 2.25% 728,395
Mega GEODE CAPITAL MANAGEMENT, LLC $70,038,112 2.10% 681,968
Mega UBS Group AG $53,206,199 1.60% 518,074
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $53,180,726 1.60% 517,826
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $43,744,551 1.31% 425,945
Mid Whale Rock Capital Management LLC $41,618,558 1.25% 405,244
Mega PRICE T ROWE ASSOCIATES INC /MD/ $31,398,368 0.94% 305,729
Mega T. Rowe Price Investment Management, Inc. $30,818,216 0.93% 300,080
Mega Nuveen, LLC $30,555,508 0.92% 297,522
Mega NORTHERN TRUST CORP Bank $30,337,988 0.91% 295,404
Large Point72 Asset Management, L.P. $29,693,753 0.89% 289,131
Mega GOLDMAN SACHS GROUP INC $28,213,744 0.85% 274,720
Mega MORGAN STANLEY $27,880,686 0.84% 271,477
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $26,983,808 0.81% 262,744
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $26,312,869 0.79% 256,211
Large FRED ALGER MANAGEMENT, LLC $22,082,143 0.66% 215,016
Small AWM Investment Company, Inc. $21,260,748 0.64% 207,018
Large Fiera Capital Corp $20,858,883 0.63% 203,105
Mid ROYCE & ASSOCIATES LP $20,434,321 0.61% 198,971
Mega VANGUARD FIDUCIARY TRUST CO Bank $19,516,594 0.59% 190,035
Large Allspring Global Investments Holdings, LLC $18,689,139 0.56% 181,978
Mid EMERALD ADVISERS, LLC $18,651,860 0.56% 181,615
Large Rockefeller Capital Management L.P. $18,259,956 0.55% 177,799
Large BAILLIE GIFFORD & CO $17,881,608 0.54% 174,115
Large VOYA INVESTMENT MANAGEMENT LLC $17,583,573 0.53% 171,213
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $16,534,905 0.50% 161,002
Large Aberdeen Group plc $15,994,600 0.48% 155,741
Mega RAYMOND JAMES FINANCIAL INC $14,900,639 0.45% 145,089
Mega Bank of New York Mellon Corp Bank $14,766,408 0.44% 143,782
Mega UBS Group AG $14,595,724 0.44% 142,120
Mid Polar Asset Management Partners Inc. $14,034,571 0.42% 136,656
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $13,874,770 0.42% 135,100
Mega PRINCIPAL FINANCIAL GROUP INC $13,519,941 0.41% 131,645
Mid OBERWEIS ASSET MANAGEMENT INC/ $12,127,432 0.36% 118,086
Mid EMERALD MUTUAL FUND ADVISERS TRUST Mutual Fund $11,429,174 0.34% 111,287
Mega JENNISON ASSOCIATES LLC $11,182,180 0.34% 108,882
Mega BANK OF AMERICA CORP /DE/ Bank $11,100,430 0.33% 108,086
Mega WELLINGTON MANAGEMENT GROUP LLP $10,824,373 0.32% 105,398
Mega JPMORGAN CHASE & CO $10,776,925 0.32% 104,936
Mega MILLENNIUM MANAGEMENT LLC $10,502,923 0.32% 102,268
Mega ALLIANCEBERNSTEIN L.P. $9,949,986 0.30% 96,884
Large Public Sector Pension Investment Board Pension $9,907,982 0.30% 96,475
Mega DEUTSCHE BANK AG\ Bank $9,884,256 0.30% 96,244
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $9,812,266 0.29% 95,543
Large Tidal Investments LLC $9,777,553 0.29% 95,205
Mega Invesco Ltd. $8,514,239 0.26% 82,904
Mid Stephens Investment Management Group LLC $8,167,833 0.25% 79,531
Mega CITADEL ADVISORS LLC $7,897,630 0.24% 76,900
Mega RHUMBLINE ADVISERS $7,437,944 0.22% 72,424
Small PEREGRINE INVESTMENT MANAGEMENT INC $7,239,528 0.22% 70,492
Micro Toronado Partners, LLC $7,210,258 0.22% 70,207
Mega NEUBERGER BERMAN GROUP LLC $7,207,587 0.22% 70,181
Large Man Group plc $6,832,733 0.21% 66,531
Mega Legal & General Group Plc $6,343,161 0.19% 61,764
Large MARSHALL WACE, LLP $6,297,460 0.19% 61,319
Mega CITADEL ADVISORS LLC $6,213,350 0.19% 60,500
Mega Swiss National Bank Bank $5,802,550 0.17% 56,500
Large STATE OF WISCONSIN INVESTMENT BOARD $5,774,102 0.17% 56,223
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $5,597,150 0.17% 54,500
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $5,538,508 0.17% 53,929
Large Squarepoint Ops LLC $5,253,310 0.16% 51,152
Mid Granite Investment Partners, LLC $4,892,525 0.15% 47,639
Mega BNP PARIBAS ARBITRAGE, SA $4,855,142 0.15% 47,275
Mid SEGALL BRYANT & HAMILL, LLC $4,824,537 0.14% 46,977
Large SEI INVESTMENTS CO $4,774,420 0.14% 46,489
Mid Cinctive Capital Management LP $4,440,337 0.13% 43,236
Mega ENVESTNET ASSET MANAGEMENT INC $4,301,384 0.13% 41,883
Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC $4,116,216 0.12% 40,080
Mega NORDEA INVESTMENT MANAGEMENT AB $3,859,774 0.12% 37,583
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $3,837,899 0.12% 37,370
Small Z3 Capital Partners, LLC $3,730,885 0.11% 36,328
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $3,481,735 0.10% 33,902
Large ExodusPoint Capital Management, LP $3,236,077 0.10% 31,510
Mega Mitsubishi UFJ Asset Management Co., Ltd. $3,191,299 0.10% 31,074
Mega WELLS FARGO & COMPANY/MN $3,037,967 0.09% 29,581
Mega CITIGROUP INC $2,997,709 0.09% 29,189
Mega JANUS HENDERSON GROUP PLC $2,877,037 0.09% 28,014
Large PRUDENTIAL FINANCIAL INC $2,874,675 0.09% 27,991
Mid KENNEDY CAPITAL MANAGEMENT LLC $2,857,422 0.09% 27,823
Small K.J. Harrison & Partners Inc $2,690,740 0.08% 26,200
Mid COOPER CREEK PARTNERS MANAGEMENT LLC $2,660,443 0.08% 25,905
Mega FRANKLIN RESOURCES INC $2,655,409 0.08% 25,856
Large SG Americas Securities, LLC Broker-Dealer $2,643,806 0.08% 25,743
Mid GILDER GAGNON HOWE & CO LLC $2,628,093 0.08% 25,590
Mega VANGUARD ASSET MANAGEMENT, Ltd $2,545,727 0.08% 24,788
Small IRONWOOD INVESTMENT MANAGEMENT LLC $2,332,317 0.07% 22,710
Large CANADA LIFE ASSURANCE Co Insurance $2,320,506 0.07% 22,595
Large OSAIC HOLDINGS, INC. $2,312,803 0.07% 22,520
Large BESSEMER GROUP INC $2,267,204 0.07% 22,076

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