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IMPINJ INC (PI) Stock Ownership and Short Interest

USA - Nasdaq - NASDAQ:PI - US4532041096 - Common Stock

209.16 USD
+0.69 (+0.33%)
Last: 1/9/2026, 8:17:16 PM
208.204 USD
-0.96 (-0.46%)
After Hours: 1/9/2026, 8:17:16 PM
PI Ownership Chart.PI Ownership Chart: showing Insider, Institutional ownership and shares available to the public.PI Ownership.InsiderInstitutional



Shares Outstanding30.11M
Float28.87M
Float Short Interest Percentage9.79%
Owners (insider)3.44%
Owners (institutional)105.18%
Owners (insider) change-0.59%
Owners (institutional) change0.04%
PI Institutional Ownership HistoryPI Institutional Ownership HistoryPI Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 10M 20M 30M 40M
PI Historical Insider Transactions ChartPI Historical Insider Buy and Sell Transactions ChartPI Historical Insider Transactions Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 0 -200K -400K -600K -800K
Date Name Type Shares Price Amount
Dec 23, 2025 DIORIO CHRIS PH.D. Option Excercise 5635 0.00 $ 0.00
Dec 23, 2025 DIORIO CHRIS PH.D. Option Excercise 2218 171.99 $ 381,473.82
Dec 23, 2025 Baker Cary Option Excercise 1856 0.00 $ 0.00
Dec 23, 2025 Baker Cary Option Excercise 732 171.99 $ 125,896.68
Dec 11, 2025 SYLEBRA CAPITAL LLC Open Market Sale 280547 150.54 $ 42,233,219.85
Dec 11, 2025 Gibson Daniel Patrick Open Market Sale 280547 150.54 $ 42,233,219.85
Dec 8, 2025 SYLEBRA CAPITAL LLC Open Market Sale 87138 155.64 $ 13,562,556.74
Dec 8, 2025 Gibson Daniel Patrick Open Market Sale 87138 155.64 $ 13,562,556.74
Dec 3, 2025 SYLEBRA CAPITAL LLC Open Market Sale 45761 167.25 $ 7,653,587.82
Dec 3, 2025 Gibson Daniel Patrick Open Market Sale 45761 167.25 $ 7,653,587.82
Dec 1, 2025 SYLEBRA CAPITAL LLC Open Market Sale 72932 167.71 $ 12,231,770.18
Dec 1, 2025 Gibson Daniel Patrick Open Market Sale 72932 167.71 $ 12,231,770.18
Nov 26, 2025 SYLEBRA CAPITAL LLC Open Market Sale 56853 172.12 $ 9,785,628.94
Nov 26, 2025 Gibson Daniel Patrick Open Market Sale 56853 172.12 $ 9,785,628.94
Nov 25, 2025 Baker Cary Other Disposition 1000 0.00 $ 0.00
Nov 24, 2025 SYLEBRA CAPITAL LLC Open Market Sale 78062 164.33 $ 12,827,818.14
Nov 24, 2025 Gibson Daniel Patrick Open Market Sale 78062 164.33 $ 12,827,818.14
Nov 20, 2025 SYLEBRA CAPITAL LLC Open Market Sale 11127 155.99 $ 1,735,687.89
Nov 20, 2025 Gibson Daniel Patrick Open Market Sale 11127 155.99 $ 1,735,687.89
Nov 19, 2025 DIORIO CHRIS PH.D. Other Disposition 7000 0.00 $ 0.00
Nov 12, 2025 SYLEBRA CAPITAL LLC Open Market Sale 3772 156.30 $ 589,563.60
Nov 12, 2025 Gibson Daniel Patrick Open Market Sale 3772 156.30 $ 589,563.60
Nov 11, 2025 SYLEBRA CAPITAL LLC Open Market Sale 30000 155.63 $ 4,668,900.00
Nov 11, 2025 Gibson Daniel Patrick Open Market Sale 30000 155.63 $ 4,668,900.00
Nov 7, 2025 SYLEBRA CAPITAL LLC Open Market Sale 6246 162.16 $ 1,012,851.36
Nov 7, 2025 Gibson Daniel Patrick Open Market Sale 6246 162.16 $ 1,012,851.36
Nov 6, 2025 SYLEBRA CAPITAL LLC Open Market Sale 23157 171.95 $ 3,981,846.15
Nov 6, 2025 Gibson Daniel Patrick Open Market Sale 23157 171.95 $ 3,981,846.15
Nov 3, 2025 SYLEBRA CAPITAL LLC Open Market Sale 1513 202.01 $ 305,641.13
Nov 3, 2025 Gibson Daniel Patrick Open Market Sale 1513 202.01 $ 305,641.13
Sep 23, 2025 DIORIO CHRIS PH.D. Option Excercise 5636 0.00 $ 0.00
Sep 23, 2025 DIORIO CHRIS PH.D. Option Excercise 2219 184.97 $ 410,448.43
Sep 23, 2025 Baker Cary Option Excercise 1857 0.00 $ 0.00
Sep 23, 2025 Baker Cary Option Excercise 732 184.97 $ 135,398.04
Sep 18, 2025 DIORIO CHRIS PH.D. Option Excercise 54075 32.29 $ 1,746,113.43
Sep 15, 2025 DIORIO CHRIS PH.D. Open Market Sale 9096 184.49 $ 1,678,162.07
Sep 12, 2025 DIORIO CHRIS PH.D. Other Disposition 30000 0.00 $ 0.00
Sep 10, 2025 Gibson Daniel Patrick Open Market Sale 300000 196.24 $ 58,872,000.00
Sep 10, 2025 SYLEBRA CAPITAL LLC Open Market Sale 300000 196.24 $ 58,872,000.00
Sep 8, 2025 DIORIO CHRIS PH.D. Open Market Sale 10000 193.59 $ 1,935,930.11
Sep 2, 2025 DIORIO CHRIS PH.D. Open Market Sale 10000 185.07 $ 1,850,657.85
Aug 28, 2025 DIORIO CHRIS PH.D. Open Market Sale 10000 188.41 $ 1,884,079.79
Jun 23, 2025 Baker Cary Option Excercise 1856 0.00 $ 0.00
Jun 23, 2025 Baker Cary Option Excercise 732 106.34 $ 77,840.88
Jun 23, 2025 DIORIO CHRIS PH.D. Option Excercise 5633 0.00 $ 0.00
Jun 23, 2025 DIORIO CHRIS PH.D. Option Excercise 2218 106.34 $ 235,862.12
Jun 5, 2025 SANGHI STEVE Option Excercise 1992 0.00 $ 0.00
Jun 5, 2025 WASHINGTON MIRON Option Excercise 1811 0.00 $ 0.00
Jun 5, 2025 Gibson Daniel Patrick Option Excercise 1811 0.00 $ 0.00
Jun 5, 2025 PADVAL UMESH Option Excercise 1811 0.00 $ 0.00
Jun 5, 2025 Rao Meera Option Excercise 1811 0.00 $ 0.00
May 20, 2025 PHELAN CATHAL G Option Excercise 1375 0.00 $ 0.00
May 20, 2025 PHELAN CATHAL G Option Excercise 492 123.33 $ 60,678.36
May 1, 2025 DIORIO CHRIS PH.D. Other Disposition 288132 0.00 $ 0.00
Apr 14, 2025 MECKLAI HUSSEIN Option Excercise 431 66.77 $ 28,777.87
Apr 14, 2025 DIORIO CHRIS PH.D. Option Excercise 1230 66.77 $ 82,127.10
Apr 14, 2025 Baker Cary Option Excercise 370 66.77 $ 24,704.90
Apr 12, 2025 MECKLAI HUSSEIN Option Excercise 1094 0.00 $ 0.00
Apr 12, 2025 DIORIO CHRIS PH.D. Option Excercise 3125 0.00 $ 0.00
Apr 12, 2025 Baker Cary Option Excercise 938 0.00 $ 0.00
Mar 24, 2025 PHELAN CATHAL G Option Excercise 907 90.25 $ 81,856.75
Mar 24, 2025 DIORIO CHRIS PH.D. Option Excercise 4363 90.25 $ 393,760.75
Mar 24, 2025 MECKLAI HUSSEIN Option Excercise 1867 90.25 $ 168,496.75
Mar 24, 2025 Baker Cary Option Excercise 1436 90.25 $ 129,599.00
Mar 23, 2025 PHELAN CATHAL G Option Excercise 2530 0.00 $ 0.00
Mar 23, 2025 DIORIO CHRIS PH.D. Option Excercise 11086 0.00 $ 0.00
Mar 23, 2025 MECKLAI HUSSEIN Option Excercise 4739 0.00 $ 0.00
Mar 23, 2025 Baker Cary Option Excercise 3647 0.00 $ 0.00
Feb 24, 2025 MECKLAI HUSSEIN Option Excercise 2000 17.75 $ 35,500.00
Feb 21, 2025 DIORIO CHRIS PH.D. Open Market Sale 8334 98.78 $ 823,239.88
Feb 21, 2025 PHELAN CATHAL G Open Market Sale 565 98.77 $ 55,803.62
Feb 21, 2025 MECKLAI HUSSEIN Open Market Sale 3739 98.81 $ 369,462.91
Feb 21, 2025 Baker Cary Open Market Sale 1553 98.76 $ 153,376.86
Feb 21, 2025 DOSSETT JEFFREY Open Market Sale 2666 98.81 $ 263,438.66
Feb 20, 2025 PHELAN CATHAL G Option Excercise 1375 0.00 $ 0.00
Feb 20, 2025 MECKLAI HUSSEIN Grant 12500 0.00 $ 0.00
Feb 20, 2025 Baker Cary Grant 6250 0.00 $ 0.00
Feb 20, 2025 DOSSETT JEFFREY Grant 7500 0.00 $ 0.00
Feb 20, 2025 DIORIO CHRIS PH.D. Grant 20750 0.00 $ 0.00
Feb 10, 2025 DIORIO CHRIS PH.D. Option Excercise 10000 22.40 $ 224,000.00
Feb 10, 2025 DIORIO CHRIS PH.D. Other Disposition 2196 0.00 $ 0.00
Jan 13, 2025 Baker Cary Open Market Sale 290 140.96 $ 40,877.73
Jan 13, 2025 DIORIO CHRIS PH.D. Open Market Sale 841 141.02 $ 118,599.75
Jan 13, 2025 MECKLAI HUSSEIN Open Market Sale 338 141.02 $ 47,663.38
Jan 13, 2025 DOSSETT JEFFREY Open Market Sale 378 141.05 $ 53,315.50
Jan 12, 2025 Baker Cary Option Excercise 937 0.00 $ 0.00
Jan 12, 2025 DIORIO CHRIS PH.D. Option Excercise 3125 0.00 $ 0.00
Jan 12, 2025 MECKLAI HUSSEIN Option Excercise 1094 0.00 $ 0.00
Jan 12, 2025 DOSSETT JEFFREY Option Excercise 1250 0.00 $ 0.00