IMPINJ INC (PI): Ownership & Insider Activity
Hedge funds and institutional managers reporting a position in PI · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
15
13F filers
Aggregate Value
$356.4M
Across holders
Last Price
$161.01
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity7 increased7 reduced1 exited
Full exits: MARSHALL WACE, LLP
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC CIK 0001273087 | Hedge Fund | 834K | $119.5M | 33.5% | 0.0% | Added | +$104.9M | Q2 2026 |
| Point72 Asset Management, L.P. CIK 0001603466 | Hedge Fund | 408K | $58.5M | 16.4% | 0.1% | Added | +$57.5M | Q2 2026 |
| Whale Rock Capital Management LLC CIK 0001387322 | Hedge Fund | 405K | $58.0M | 16.3% | 0.5% | Unchanged | +$0 | Q2 2026 |
| Rockefeller Capital Management L.P. CIK 0001739439 | Hedge Fund | 182K | $26.0M | 7.3% | 0.0% | Added | +$25.9M | Q2 2026 |
| FRED ALGER MANAGEMENT, LLC CIK 0000003520 | Hedge Fund | 160K | $22.9M | 6.4% | 0.1% | Reduced | $-12.7M | Q2 2026 |
| BAILLIE GIFFORD & CO CIK 0001088875 | Institutional Manager | 156K | $22.3M | 6.3% | 0.0% | Reduced | $-2.7M | Q2 2026 |
| Squarepoint Ops LLC CIK 0001642575 | Hedge Fund | 117K | $16.7M | 4.7% | 0.0% | Added | +$15.6M | Q2 2026 |
| ExodusPoint Capital Management, LP CIK 0001736225 | Hedge Fund | 89K | $12.7M | 3.6% | 0.1% | Added | — | Q2 2026 |
| CITADEL ADVISORS LLC CIK 0001423053 | Hedge Fund | 62K | $8.9M | 2.5% | 0.0% | Added | +$227K | Q2 2026 |
| Man Group plc CIK 0001637460 | Hedge Fund | 49K | $7.0M | 2.0% | 0.0% | Reduced | +$5.0M | Q2 2026 |
Added
Hedge Fund
$119.5M· 33.5% of total· 0.0% port· 834K sh· +$104.9M QoQ· Q2 2026
Added
Hedge Fund
$58.5M· 16.4% of total· 0.1% port· 408K sh· +$57.5M QoQ· Q2 2026
Unchanged
Hedge Fund
$58.0M· 16.3% of total· 0.5% port· 405K sh· +$0 QoQ· Q2 2026
Added
Hedge Fund
$26.0M· 7.3% of total· 0.0% port· 182K sh· +$25.9M QoQ· Q2 2026
Reduced
Hedge Fund
$22.9M· 6.4% of total· 0.1% port· 160K sh· $-12.7M QoQ· Q2 2026
Reduced
Institutional Manager
$22.3M· 6.3% of total· 0.0% port· 156K sh· $-2.7M QoQ· Q2 2026
Added
Hedge Fund
$16.7M· 4.7% of total· 0.0% port· 117K sh· +$15.6M QoQ· Q2 2026
Added
Hedge Fund
$12.7M· 3.6% of total· 0.1% port· 89K sh· — QoQ· Q2 2026
Added
Hedge Fund
$8.9M· 2.5% of total· 0.0% port· 62K sh· +$227K QoQ· Q2 2026
Reduced
Hedge Fund
$7.0M· 2.0% of total· 0.0% port· 49K sh· +$5.0M QoQ· Q2 2026
Reduced
Hedge Fund
$1.2M· 0.3% of total· 0.0% port· 9K sh· +$1.2M QoQ· Q2 2026
Added
Hedge Fund
$1.1M· 0.3% of total· 0.0% port· 8K sh· $-2.5M QoQ· Q2 2026
Reduced
Hedge Fund
$1.1M· 0.3% of total· 0.0% port· 7K sh· $-83K QoQ· Q2 2026
Reduced
Family Office
$305K· 0.1% of total· 0.0% port· 2K sh· $-251K QoQ· Q2 2026
Reduced
Hedge Fund
$36K· 0.0% of total· 0.0% port· 250 sh· $-36K QoQ· Q2 2026
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