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Of the 13 tracked institutions holding PI, 6 have a 3-year clone track record — 5 of them beat the S&P. Average holder's clone alpha: +6.8pt. It's a gauge of who owns the name, not just how many.
Among the 13 tracked institutional investors we monitor, PI (IMPINJ INC) is held with a combined value of $1.78B across 14,946,934 shares. The largest holder is VANGUARD GROUP INC with a position worth $603.11M. 2 funds opened new positions in the most recent quarter. 7 funds increased their holdings. 4 funds reduced their position.
Total Institutional Value
$1.78B
Total Shares Held
14,946,934
Institutional Holders
13
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $603.11M | 0.01% | +2.5% |
| 2 | BlackRock, Inc. | $443.00M | 0.01% | +1.1% |
| 3 | FMR LLC | $439.61M | 0.02% | -4.9% |
| 4 | STATE STREET CORP | $152.50M | 0.01% | +16.3% |
| 5 | Whale Rock Capital Management LLC | $41.62M | 0.54% | -54.3% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $31.40M | 0.00% | -55.9% |
| 7 | Point72 Asset Management, L.P. | $29.69M | 0.05% | New |
| 8 | BAILLIE GIFFORD & CO | $17.88M | 0.02% | +69.5% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $10.82M | 0.00% | +12.9% |
| 10 | MILLENNIUM MANAGEMENT LLC | $10.50M | 0.00% | +7326.9% |
| Member | Type | Date |
|---|---|---|
| Marjorie Taylor Greene | Buy | May 14, 2025 |
| Marjorie Taylor Greene | Buy | May 5, 2025 |
| Marjorie Taylor Greene | Buy | Apr 4, 2025 |
| Marjorie Taylor Greene | Buy |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of PI with a position worth $603.11M, representing 0.01% of their portfolio. In total, 13 institutional investors hold PI with a combined value of $1.78B.
In the most recent quarter, 2 funds opened a new position in PI. Additionally, 7 increased their holdings and 4 reduced their positions.
Institutional investors hold $1.78B worth of PI stock across 13 positions. The largest institutional holder is VANGUARD GROUP INC with $603.11M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For PI, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their PI positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| Mar 3, 2025 |
Last Close
$127.55
2026-07-24
YTD
-29.0%
24% of 52-week range
