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IMPINJ INC (PI) Stock Ownership and Short Interest

USA - NASDAQ:PI - US4532041096 - Common Stock

181.575 USD
+6.02 (+3.43%)
Last: 11/5/2025, 3:37:49 PM
PI Ownership Chart.PI Ownership Chart: showing Insider, Institutional ownership and shares available to the public.PI Ownership.InsiderInstitutional



Shares Outstanding29.09M
Float27.87M
Float Short Interest Percentage11.2%
Owners (insider)3.29%
Owners (institutional)109.97%
Owners (insider) change0.18%
Owners (institutional) change-0.56%
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 Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 0 -200K -400K -600K
Date Name Type Shares Price Amount
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 SYLEBRA CAPITAL LLC Open Market Sale 300000 196.24 $ 58,872,000.00
Sep 10, 2025 Gibson Daniel Patrick 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 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 21, 2025 DIORIO CHRIS PH.D. Open Market Sale 8334 98.78 $ 823,239.88
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 DOSSETT JEFFREY Option Excercise 1250 0.00 $ 0.00
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
Dec 24, 2024 PHELAN CATHAL G Open Market Sale 210 146.06 $ 30,672.80
Dec 24, 2024 MECKLAI HUSSEIN Open Market Sale 826 146.07 $ 120,655.52
Dec 24, 2024 DOSSETT JEFFREY Open Market Sale 580 146.06 $ 84,717.17
Dec 24, 2024 DIORIO CHRIS PH.D. Open Market Sale 1504 146.22 $ 219,912.32
Dec 24, 2024 Baker Cary Open Market Sale 499 146.06 $ 72,884.84
Dec 23, 2024 PHELAN CATHAL G Option Excercise 413 0.00 $ 0.00
Dec 23, 2024 MECKLAI HUSSEIN Option Excercise 2091 0.00 $ 0.00
Dec 23, 2024 DOSSETT JEFFREY Option Excercise 1466 0.00 $ 0.00
Dec 23, 2024 DIORIO CHRIS PH.D. Option Excercise 3818 0.00 $ 0.00
Dec 23, 2024 Baker Cary Option Excercise 1260 0.00 $ 0.00
Nov 21, 2024 PHELAN CATHAL G Open Market Sale 697 186.14 $ 129,737.77
Nov 20, 2024 PHELAN CATHAL G Option Excercise 1375 0.00 $ 0.00
Nov 13, 2024 DOSSETT JEFFREY Option Excercise 15000 17.33 $ 259,950.00
Nov 13, 2024 DOSSETT JEFFREY Open Market Sale 15000 187.31 $ 2,809,589.26
Nov 12, 2024 SYLEBRA CAPITAL LLC Open Market Sale 14476 198.00 $ 2,866,278.71
Nov 12, 2024 Gibson Daniel Patrick Open Market Sale 14476 198.00 $ 2,866,278.71
Nov 8, 2024 PHELAN CATHAL G Open Market Sale 11549 200.81 $ 2,319,190.87
Nov 8, 2024 SYLEBRA CAPITAL LLC Open Market Sale 328616 202.71 $ 66,614,240.05
Nov 8, 2024 Gibson Daniel Patrick Open Market Sale 328616 202.71 $ 66,614,240.05
Nov 6, 2024 SYLEBRA CAPITAL LLC Open Market Sale 225000 201.69 $ 45,380,357.59
Nov 6, 2024 Gibson Daniel Patrick Open Market Sale 225000 201.69 $ 45,380,357.59
Nov 6, 2024 DIORIO CHRIS PH.D. Option Excercise 50000 33.77 $ 1,688,500.00
Nov 6, 2024 DIORIO CHRIS PH.D. Open Market Sale 25180 201.52 $ 5,074,261.27
Nov 6, 2024 DIORIO CHRIS PH.D. Other Disposition 35000 0.00 $ 0.00