IMPINJ INC
Total Trades
474
Buys
18
Sells
256
Largest Trade
N/A
Insiders
11
Institutional Funds
272
Inst. Value
$1M+
Activist Filings
29
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 281K | $150.54 | Dec 16, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 87K | $155.64 | Dec 11, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 46K | $167.25 | Dec 6, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 73K | $167.71 | Dec 4, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 57K | $172.12 | Dec 2, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 78K | $164.33 | Nov 27, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 11K | $155.99 | Nov 25, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $500K+ | 4K | $156.30 | Nov 15, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 30K | $155.63 | Nov 14, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 6K | $162.16 | Nov 13, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 23K | $171.95 | Nov 11, 2025 |
| WASHINGTON MIRON | Director | SELL | $50K–$100K | 342 | $158.94 | Nov 7, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $100K–$500K | 2K | $202.01 | Nov 6, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | SELL | $1M+ | 9K | $184.49 | Sep 16, 2025 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 300K | $196.24 | Sep 13, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | SELL | $1M+ | 10K | $193.59 | Sep 9, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | SELL | $1M+ | 10K | $185.07 | Sep 4, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | SELL | $1M+ | 10K | $188.41 | Aug 29, 2025 |
| PHELAN CATHAL G | CHIEF INNOVATION O… | SELL | $50K–$100K | 565 | $98.77 | Feb 24, 2025 |
| PHELAN CATHAL G | CHIEF INNOVATION O… | EXERCISE | N/A | 1K | — | Feb 24, 2025 |
| MECKLAI HUSSEIN | CHIEF OPERATING OF… | GRANT | N/A | 13K | — | Feb 24, 2025 |
| MECKLAI HUSSEIN | CHIEF OPERATING OF… | SELL | $100K–$500K | 4K | $98.81 | Feb 24, 2025 |
| Baker Cary | CHIEF FINANCIAL OF… | SELL | $100K–$500K | 2K | $98.76 | Feb 24, 2025 |
| Baker Cary | CHIEF FINANCIAL OF… | GRANT | N/A | 6K | — | Feb 24, 2025 |
| DOSSETT JEFFREY | CHIEF REVENUE OFFI… | SELL | $100K–$500K | 3K | $98.81 | Feb 24, 2025 |
| DOSSETT JEFFREY | CHIEF REVENUE OFFI… | GRANT | N/A | 8K | — | Feb 24, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | GRANT | N/A | 21K | — | Feb 24, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | SELL | $500K+ | 8K | $98.78 | Feb 24, 2025 |
| DOSSETT JEFFREY | CHIEF REVENUE OFFI… | EXERCISE | N/A | 1K | — | Jan 14, 2025 |
| DOSSETT JEFFREY | CHIEF REVENUE OFFI… | SELL | $50K–$100K | 378 | $141.05 | Jan 14, 2025 |
| Baker Cary | CHIEF FINANCIAL OF… | SELL | $15K–$50K | 290 | $140.96 | Jan 14, 2025 |
| Baker Cary | CHIEF FINANCIAL OF… | EXERCISE | N/A | 937 | — | Jan 14, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | EXERCISE | N/A | 3K | — | Jan 14, 2025 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 841 | $141.02 | Jan 14, 2025 |
| MECKLAI HUSSEIN | CHIEF OPERATING OF… | SELL | $15K–$50K | 338 | $141.02 | Jan 14, 2025 |
| MECKLAI HUSSEIN | CHIEF OPERATING OF… | EXERCISE | N/A | 1K | — | Jan 14, 2025 |
| PHELAN CATHAL G | CHIEF INNOVATION O… | SELL | $15K–$50K | 210 | $146.06 | Dec 26, 2024 |
| PHELAN CATHAL G | CHIEF INNOVATION O… | EXERCISE | N/A | 413 | — | Dec 26, 2024 |
| MECKLAI HUSSEIN | CHIEF OPERATING OF… | EXERCISE | N/A | 2K | — | Dec 26, 2024 |
| MECKLAI HUSSEIN | CHIEF OPERATING OF… | SELL | $100K–$500K | 826 | $146.07 | Dec 26, 2024 |
| DOSSETT JEFFREY | CHIEF REVENUE OFFI… | EXERCISE | N/A | 1K | — | Dec 26, 2024 |
| DOSSETT JEFFREY | CHIEF REVENUE OFFI… | SELL | $50K–$100K | 580 | $146.06 | Dec 26, 2024 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | EXERCISE | N/A | 4K | — | Dec 26, 2024 |
| DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OF… | SELL | $100K–$500K | 2K | $146.22 | Dec 26, 2024 |
| Baker Cary | CHIEF FINANCIAL OF… | EXERCISE | N/A | 1K | — | Dec 26, 2024 |
| Baker Cary | CHIEF FINANCIAL OF… | SELL | $50K–$100K | 499 | $146.06 | Dec 26, 2024 |
| PHELAN CATHAL G | CHIEF INNOVATION O… | SELL | $100K–$500K | 697 | $186.14 | Nov 22, 2024 |
| PHELAN CATHAL G | CHIEF INNOVATION O… | EXERCISE | N/A | 1K | — | Nov 22, 2024 |
| SYLEBRA CAPITAL LLC | Insider | SELL | $1M+ | 14K | $198.00 | Nov 15, 2024 |
| DOSSETT JEFFREY | CHIEF REVENUE OFFI… | SELL | $1M+ | 15K | $187.31 | Nov 14, 2024 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 272 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Capital International Investors | 1.6M | $1M+ | SH |
| STATE STREET CORP | 1.3M | $1M+ | SH |
| SYLEBRA CAPITAL LLC | 1.1M | $1M+ | SH |
| Whale Rock Capital Management LLC | 887K | $1M+ | SH |
| Capital World Investors | 754K | $1M+ | SH |
| Chevy Chase Trust Holdings, LLC | 682K | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 680K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 581K | $1M+ | SH |
| NORGES BANK | 317K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 266K | $1M+ | SH |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 212K | $1M+ | SH |
| BNP Paribas Asset Management Holding S.A. | 148K | $1M+ | SH |
| JENNISON ASSOCIATES LLC | 188K | $1M+ | SH |
| AWM Investment Company, Inc. | 178K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 168K | $1M+ | SH |
| EMERALD ADVISERS, LLC | 159K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 129K | $1M+ | SH |
| PRINCIPAL FINANCIAL GROUP INC | 127K | $1M+ | SH |
| Polar Asset Management Partners Inc. | 109K | $1M+ | SH |
| EMERALD MUTUAL FUND ADVISERS TRUST | 99K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13D/A · Dec 17, 2025
3.8%
1.1M shares
SC 13D/A · Dec 5, 2025
5.0%
1.5M shares
SC 13D/A · Sep 12, 2025
6.3%
1.8M shares
Capital International Investors
SC 13G · Feb 14, 2025
5.4%
1.5M shares
SC 13D/A · Nov 12, 2024
7.9%
2.2M shares
SC 13G/A · Nov 12, 2024
11.9%
3.3M shares
SC 13D/A · Nov 8, 2024
9.2%
2.6M shares
SC 13D/A · Nov 6, 2024
10.3%
2.9M shares
SC 13G/A · Nov 4, 2024
11.9%
3.3M shares
SC 13G/A · Oct 7, 2024
13.5%
3.8M shares
The Vanguard Group - 23-1945930
SC 13G/A · Jul 10, 2024
10.1%
2.8M shares
SC 13D · Jun 11, 2024
11.5%
3.2M shares
SC 13G/A · Feb 14, 2024
4.6%
1.3M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
9.2%
2.5M shares
SC 13G/A · Feb 1, 2024
1.9%
526K shares
SC 13G/A · Jan 26, 2024
7.0%
1.9M shares
SC 13D/A · Nov 16, 2023
14.9%
4.0M shares
SC 13D/A · Aug 25, 2023
13.8%
3.7M shares
SC 13D/A · Aug 18, 2023
12.7%
3.4M shares
The Vanguard Group - 23-1945930
SC 13G/A · Jul 10, 2023
10.1%
2.7M shares
SC 13G · Jun 12, 2023
10.6%
2.8M shares
Gilder, Gagnon, Howe & Co. LLC
SC 13G/A · Feb 14, 2023
4.9%
1.3M shares
Chevy Chase Trust Holdings, LLC
SC 13G/A · Feb 10, 2023
4.6%
1.2M shares
SC 13G · Feb 9, 2023
8.6%
2.2M shares
SC 13G/A · Jan 31, 2023
6.5%
1.7M shares
SC 13D/A · Nov 23, 2022
11.5%
3.0M shares
SC 13D/A · Nov 18, 2022
12.9%
3.3M shares
Chevy Chase Trust Holdings, LLC
SC 13G/A · Feb 14, 2022
5.6%
1.4M shares
Gilder, Gagnon, Howe & Co. LLC
SC 13G · Feb 14, 2022
6.4%
1.6M shares