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PI in the 13F filings

Impinj Inc · CUSIP 453204109

Sector · Technology hardware and equipment
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 8 May 2026
Managers listing it
24
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 5 listed it in both
Shares listed
7,306,594
combined, among listed positions
Reported value
$757m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 11 buyers (opened or added shares) and 17 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -1,628,891.

Managers listing PI in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

24 of 24 holders

ActionFiling
Fidelity (FMR LLC)4,280,553$440munder 0.1%Trimmed-219,53115 May 2026 (the filing on sec.gov)
Capital World Investors1,016,052$104munder 0.1%Added+261,70613 May 2026 (the filing on sec.gov)
Whale Rock Capital Management LLC405,244$42m0.54%Trimmed-482,02815 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc305,729$31munder 0.1%Trimmed-386,86715 May 2026 (the filing on sec.gov)
Point72 Asset Management LP289,131$30munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Baillie Gifford & Co174,115$18munder 0.1%Added+71,3628 May 2026 (the filing on sec.gov)
AllianceBernstein LP96,884$17munder 0.1%Trimmed-2715 May 2026 (the filing on sec.gov)
Wellington Management Group LLP105,398$11munder 0.1%Added+12,03615 May 2026 (the filing on sec.gov)
Millennium Management LLC102,268$11munder 0.1%Added+100,89115 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP95,543$9.8munder 0.1%Added+67,47515 May 2026 (the filing on sec.gov)
Invesco Ltd82,904$8.5munder 0.1%Trimmed-1,204,97512 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC70,181$7.2munder 0.1%Trimmed-60,53627 Oct 2026 (the filing on sec.gov)
Man Group PLC66,531$6.8munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Marshall Wace LLP61,319$6.3munder 0.1%Trimmed-5,08115 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC51,152$5.3munder 0.1%Trimmed-23,68015 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP31,510$3.2munder 0.1%Trimmed-4114 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd28,014$2.9munder 0.1%Added+8,02318 May 2026 (the filing on sec.gov)
AQR Capital Management LLC10,463$1.1munder 0.1%Added+5,90515 May 2026 (the filing on sec.gov)
Holocene Advisors LP7,929$814kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Walleye Capital LLC7,502$770kunder 0.1%Trimmed-32,94413 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.7,269$747kunder 0.1%Trimmed-2,33215 May 2026 (the filing on sec.gov)
Citadel Advisors LLC5,831$599kunder 0.1%Trimmed-3,61715 May 2026 (the filing on sec.gov)
Soros Fund Management LLC3,881$399kunder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC1,191$122kunder 0.1%Trimmed-2,45513 May 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
12 in Q3 2024 to 8 in Q2 2026

Tracked managers listing it, at least.

05101520192020202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
PI by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20161$7.2mn.a.n.a.
Q2 20171$285kn.a.n.a.
Q3 20171$1.4mn.a.n.a.
Q4 20171$2.0mn.a.n.a.
Q1 20191$385kn.a.n.a.
Q2 20192$2.2mn.a.n.a.
Q3 20192$2.6mn.a.n.a.
Q4 20192$2.4mn.a.n.a.
Q1 20203$9.4mn.a.n.a.
Q2 20202$9.0mn.a.n.a.
Q3 20201$819kn.a.n.a.
Q4 20201$1.3mn.a.n.a.
Q1 20214$21mn.a.n.a.
Q2 20212$4.6mn.a.n.a.
Q3 20211$1.6mn.a.n.a.
Q4 20214$81mn.a.n.a.
Q1 20223$22mn.a.n.a.
Q2 20223$63mn.a.n.a.
Q3 20225$95mn.a.n.a.
Q4 20228$370mn.a.n.a.
Q1 202310$563mn.a.n.a.
Q2 20235$126mn.a.n.a.
Q3 20234$78mn.a.n.a.
Q4 20237$148m33
Q1 20246$749m41
Q2 202411$1.0bn92
Q3 202412$1.4bn83
Q4 202410$911m74
Q1 20255$288m50
Q2 20257$750m33
Q3 20257$1.2bn51
Q4 20255$1.1bn1612
Q1 20264$164m1117
Q2 20268$1.1bn1112

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

PI and AAPL →PI and SNDK →PI and CSCO →Choose a stock to compare with PI →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own PI, latest filings →Back to the 13F Explorer →