PI Institutional Ownership
Who owns Impinj Inc and what the big funds did with it last quarter, from every SEC 13F filing. 320 funds reported holding PI at Jun 30, 2026, together owning 106.4% of the company.
- ▲182 buying vs 123 selling
- ▲Held by funds +3.1 pts
- ▲Funds holding +27
- ▲Superinvestors: 3 added, 1 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 320 | 293 | +9.2% |
| In funds' top 10 | 3 | 4 | −25.0% |
| 13F shares | 32.8M | 31.9M | +3.0% |
| Held by funds | 106.4% | 103.3% | +3.1 pts |
| New positions | 64 | 43 | +48.8% |
| Increased | 118 | 119 | −0.8% |
| Reduced | 86 | 81 | +6.2% |
| Sold out | 37 | 81 | −54.3% |
| Calls (shares) | 37K | 17K | +119.0% |
| Puts (shares) | 27K | 36K | −23.7% |
| Put/call ratio | 0.74 | 2.14 | −65.2% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in PI
All superinvestors →
Who owns PI
share of fund held shares- Index and passive funds34.7%
- Active managers and hedge funds52.5%
- Banks and brokers9.1%
- Pensions, insurers and other3.7%
The top 10 holders own 58.4% of all PI shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
77 funds changed their position- GFS Advisors, LLCSold out−25K sh
- Assenagon Asset Management S.A.Trimmed−10K sh
- Cambridge Investment Research Advisors, Inc.Trimmed−9,559 sh
- Principal Financial Group IncAdded+7,955 sh
- Counterpoint Mutual Funds LLCNew+4,691 sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Fmr LLC | 14.79% | 4.6M | $654M | +282K |
| 2 | BlackRock, Inc. | 14.42% | 4.4M | $637M | +136K |
| 3 | Vanguard Portfolio Management LLC | 7.11% | 2.2M | $314M | +54K |
| 4 | State Street Corp | 5.51% | 1.7M | $244M | +216K |
| 5 | Capital International Investors | 4.68% | 1.4M | $207M | +91K |
| 6 | Vanguard Capital Management LLC | 4.16% | 1.3M | $184M | +17K |
| 7 | Capital World Investors | 3.64% | 1.1M | $161M | +108K |
| 8 | Millennium Management LLC | 2.70% | 834K | $120M | +732K |
| 9 | American Century Companies Inc | 2.61% | 804K | $115M | −14K |
| 10 | Sylebra Capital LLC | 2.51% | 776K | $111M | −356K |
- Millennium Management LLC+732K sh+$105M
- Broad Bay Capital Management, LP+329K sh+$47.1M
- Fmr LLC+282K sh+$40.4M
- Westfield Capital Management Co LP+271K sh+$38.8M
- Manufacturers Life Insurance Company, the+243K sh+$34.9M
- State Street Corp+216K sh+$30.9M
- Norges Bank+186K sh+$26.7M
- BlackRock, Inc.+136K sh+$19.5M
- Alyeska Investment Group, L.P.−735K sh−$75.5M
- UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME−413K sh−$59.2M
- Sylebra Capital LLC−356K sh−$51M
- Ameriprise Financial Inc−327K sh−$46.9M
- T. Rowe Price Investment Management, Inc.−107K sh−$15.3M
- UBS Group AG−104K sh−$14.8M
- Polar Asset Management Partners Inc.−137K sh−$14M
- Fiera Capital Corp−87K sh−$12.5M
PI institutional ownership FAQ
Who owns the most PI stock?
In Q2 2026 13F filings the largest holder of PI was Fmr LLC, followed by BlackRock, Inc. and Vanguard Portfolio Management LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of PI is owned by institutions?
Funds that file 13F reports held 106.4% of PI's shares at Jun 30, 2026, compared with 103.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying PI?
In Q2 2026, 182 funds bought PI (64 of them new positions) and 123 sold (37 sold out completely). Among well known investors, 3 added and 1 cut. Our fund sentiment for PI is strongly bullish.
What is PI's institutional put/call ratio?
Funds reported $3.9M of PI puts against $5.3M of calls, a put/call ratio of 0.74 (2.14 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this PI ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.