Quick Takeaways
- PI - IMPINJ INC has 16 insiders with reported activity on this page.
- Net insider value flow over the last year: -$176,864,258.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 16 Insiders of IMPINJ INC
- Symbol
- PI on Nasdaq
- Location
- Seattle, WA
What Changed
- Buy value: ; sell value: $176,864,258.
- Net share flow: -1,036,546.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to selling over the last 12 months. Net value: -$176,864,258.
Buys
$0
Shares: 0
Insiders: 0
Sells
$176,864,258
Shares: 1,036,546
Insiders: 3
Net
-$176,864,258
Shares: -1,036,546
Insiders: -3
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 697,450 | $0 | $110,643,428 | -$110,643,428 |
| 6-9 | 0 | 339,096 | $0 | $66,220,830 | -$66,220,830 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
IMPINJ INC executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Sylebra Capital Ltd | 10%+ Owner | $342,252,082 | Mixed | 20 Nov 2023 | ||
| Daniel Patrick Gibson | Director | $261,951,169 | Mixed | 05 Jun 2025 | ||
| SYLEBRA CAPITAL LLC | Other* | $170,230,374 | -$169,461,072 | -50% | Filing P/S | 11 Dec 2025 |
| Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER, Director | $102,607,432 | -$7,348,830 | -6.7% | Mixed | 23 Mar 2026 |
| Cary Baker | Chief Financial Officer | $15,487,412 | Mixed | 23 Mar 2026 | ||
| Jeffrey Dossett | Chief Revenue Officer | $7,345,346 | Mixed | 20 Feb 2025 | ||
| Steve Sanghi | Director | $6,427,641 | Mixed | 05 Jun 2025 | ||
| Hussein Mecklai | Chief Operating Officer | $5,066,641 | Mixed | 12 Apr 2025 | ||
| Gregory Sessler | Director | $2,304,076 | Mixed | 08 Jun 2023 | ||
| Peter H. van Oppen | Director | $1,978,650 | Mixed | 09 Jun 2022 | ||
| Cathal G. Phelan | CHIEF INNOVATION OFFICER, Director | $1,859,543 | Mixed | 20 May 2025 | ||
| Meera Rao | Director | $1,300,524 | Mixed | 05 Jun 2025 | ||
| Theresa Wise | Director | $1,210,869 | Mixed | 09 Jun 2022 | ||
| Umesh Padval | Director | $731,868 | Mixed | 05 Jun 2025 | ||
| Miron Washington | Director | $624,858 | -$54,357 | -8% | Mixed | 07 Nov 2025 |
| Arthur L. Valdez Jr. | Director | Mixed | 20 Oct 2025 |
Top shareholders of IMPINJ INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| FMR LLC |
13F
|
Company |
15%
|
4,500,084
|
$783,059,566 | — | 31 Dec 2025 | |
| BlackRock, Inc. |
13F
|
Company |
14%
|
4,266,969
|
$742,495,275 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
12%
|
3,465,949
|
$603,109,786 | — | 31 Dec 2025 | |
| Sylebra Capital Ltd |
3/4/5
|
10%+ Owner |
—
class O/S missing
|
4,197,352
|
$342,252,082 | — | 20 Nov 2023 | |
| Capital International Investors |
13F
13D/G
|
Company |
5.4%
from 13D/G
|
1,564,251
|
$272,195,317 | — | 31 Dec 2025 | |
| Daniel Patrick Gibson |
3/4/5
|
Director |
—
mixed-class rows
|
2,152,270
mixed-class rows
|
$261,951,169 | — | 05 Jun 2025 | |
| Invesco Ltd. |
13F
|
Company |
4.3%
|
1,287,879
|
$224,103,824 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
4.2%
|
1,276,893
|
$222,192,151 | — | 31 Dec 2025 | |
| SYLEBRA CAPITAL LLC |
13F
13D/G
3/4/5
|
Company · Other* |
3.8%
from 13D/G
|
1,132,152
|
$197,005,770 | — | 31 Dec 2025 | |
| Whale Rock Capital Management LLC |
13F
|
Company |
2.9%
|
887,272
|
$154,394,201 | — | 31 Dec 2025 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
2.8%
|
841,060
|
$146,353,171 | — | 31 Dec 2025 | |
| Capital World Investors |
13F
|
Company |
2.5%
|
754,346
|
$131,263,747 | — | 31 Dec 2025 | |
| DRIEHAUS CAPITAL MANAGEMENT LLC |
13F
|
Company |
2.4%
|
737,474
|
$128,327,851 | — | 31 Dec 2025 | |
| PRICE T ROWE ASSOCIATES INC /MD/ |
13F
|
Company |
2.3%
|
692,596
|
$120,519,000 | — | 31 Dec 2025 | |
| Chevy Chase Trust Holdings, LLC |
13F
|
Company |
2.3%
|
681,915
|
$118,660,027 | — | 31 Dec 2025 | |
| AMERICAN CENTURY COMPANIES INC |
13F
|
Company |
2.3%
|
679,585
|
$118,255,014 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.2%
|
667,647
|
$116,195,337 | — | 31 Dec 2025 | |
| Chris Ph.d. Diorio |
3/4/5
|
CHIEF EXECUTIVE OFFICER, Director |
—
mixed-class rows
|
614,470
mixed-class rows
|
$102,607,432 | -$7,348,830 | 23 Mar 2026 | |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
|
Company |
1.2%
|
349,828
|
$60,873,571 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
1.1%
|
328,972
|
$57,244,418 | — | 31 Dec 2025 | |
| NORGES BANK |
13F
|
Company |
1.1%
|
317,313
|
$55,215,635 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.96%
|
288,974
|
$50,284,366 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.95%
|
286,364
|
$49,830,250 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
0.9%
|
271,748
|
$47,287,095 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.88%
|
266,040
|
$46,293,620 | — | 31 Dec 2025 | |
| JENNISON ASSOCIATES LLC |
13F
|
Company |
0.81%
|
242,504
|
$42,198,124 | — | 31 Dec 2025 | |
| Nuveen, LLC |
13F
|
Company |
0.71%
|
214,861
|
$37,387,963 | — | 31 Dec 2025 | |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
0.7%
|
212,003
|
$36,890,642 | — | 31 Dec 2025 | |
| BNP Paribas Asset Management Holding S.A. |
13F
|
Company |
0.49%
|
148,592
|
$33,279,000 | — | 31 Dec 2025 | |
| T. Rowe Price Investment Management, Inc. |
13F
|
Company |
0.61%
|
183,669
|
$31,961,000 | — | 31 Dec 2025 | |
| AWM Investment Company, Inc. |
13F
|
Company |
0.59%
|
178,173
|
$31,003,884 | — | 31 Dec 2025 | |
| Allspring Global Investments Holdings, LLC |
13F
|
Company |
0.56%
|
170,082
|
$30,573,940 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.57%
|
171,094
|
$29,772,067 | — | 31 Dec 2025 | |
| ROYCE & ASSOCIATES LP |
13F
|
Company |
0.56%
|
167,882
|
$29,213,147 | — | 31 Dec 2025 | |
| EMERALD ADVISERS, LLC |
13F
|
Company |
0.53%
|
158,802
|
$27,633,136 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.48%
|
144,861
|
$25,207,291 | — | 31 Dec 2025 | |
| Neuberger Berman Group LLC |
13F
|
Company |
0.43%
|
130,717
|
$22,746,065 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.43%
|
128,624
|
$22,381,862 | — | 31 Dec 2025 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.43%
|
128,149
|
$22,299,208 | — | 31 Dec 2025 | |
| Aperture Investors, LLC |
13F
|
Company |
0.39%
|
117,118
|
$20,379,703 | — | 31 Dec 2025 | |
| Polar Asset Management Partners Inc. |
13F
|
Company |
0.36%
|
108,811
|
$18,934,202 | — | 31 Dec 2025 | |
| OBERWEIS ASSET MANAGEMENT INC/ |
13F
|
Company |
0.36%
|
107,120
|
$18,639,951 | — | 31 Dec 2025 | |
| RAYMOND JAMES FINANCIAL INC |
13F
|
Company |
0.35%
|
105,932
|
$18,070,281 | — | 31 Dec 2025 | |
| BAILLIE GIFFORD & CO |
13F
|
Company |
0.34%
|
102,753
|
$17,880,050 | — | 31 Dec 2025 | |
| EMERALD MUTUAL FUND ADVISERS TRUST |
13F
|
Company |
0.33%
|
99,487
|
$17,311,733 | — | 31 Dec 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
|
Company |
0.32%
|
96,911
|
$16,863,483 | — | 31 Dec 2025 | |
| WELLINGTON MANAGEMENT GROUP LLP |
13F
|
Company |
0.31%
|
93,362
|
$16,245,922 | — | 31 Dec 2025 | |
| PUBLIC SECTOR PENSION INVESTMENT BOARD |
13F
|
Company |
0.31%
|
92,712
|
$16,132,815 | — | 31 Dec 2025 | |
| DEUTSCHE BANK AG\ |
13F
|
Company |
0.31%
|
92,013
|
$16,011,183 | — | 31 Dec 2025 | |
| Rockefeller Capital Management L.P. |
13F
|
Company |
0.3%
|
91,652
|
$15,948,364 | — | 31 Dec 2025 |
Recent Insider Transactions by Companies or Individuals for IMPINJ INC
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Cary Baker | PI | Common Stock | Tax liability | -0.82% | -732 | 89,003 | 23 Mar 2026 | Direct | ||
| Cary Baker | PI | Common Stock | Options Exercise | 2.11% | 1,858 | 89,735 | 23 Mar 2026 | Direct | ||
| Cary Baker | PI | Restricted Stock Units | Award | 7,627 | 7,627 | 23 Mar 2026 | Direct | |||
| Cary Baker | PI | Restricted Stock Units | Options Exercise | -100% | -1,858 | 0 | 23 Mar 2026 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Tax liability | -0.57% | -2,218 | 390,302 | 23 Mar 2026 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Options Exercise | 1.46% | 5,635 | 392,520 | 23 Mar 2026 | Direct | ||
| Chris Ph.d. Diorio | PI | Restricted Stock Units | Award | 24,806 | 24,806 | 23 Mar 2026 | Direct | |||
| Chris Ph.d. Diorio | PI | Restricted Stock Units | Options Exercise | -100% | -5,635 | 0 | 23 Mar 2026 | Direct | ||
| Cary Baker | PI | Common Stock | Tax liability | -2.48% | -2,234 | 87,877 | 20 Feb 2026 | Direct | ||
| Cary Baker | PI | Common Stock | Award | 10.4% | 8,508 | 90,111 | 20 Feb 2026 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Tax liability | -1.89% | -7,435 | 386,885 | 20 Feb 2026 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Award | 5.83% | 21,734 | 394,320 | 20 Feb 2026 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Gift | -0.49% | -1,836 | 372,586 | 17 Feb 2026 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Tax liability | -0.59% | -2,218 | 374,422 | 23 Dec 2025 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Options Exercise | 1.52% | 5,635 | 376,640 | 23 Dec 2025 | Direct | ||
| Chris Ph.d. Diorio | PI | Restricted Stock Units | Options Exercise | -68.5% | -5,635 | 2,594 | 23 Dec 2025 | Direct | ||
| Cary Baker | PI | Common Stock | Tax liability | -0.89% | -732 | 81,603 | 23 Dec 2025 | Direct | ||
| Cary Baker | PI | Common Stock | Options Exercise | 2.31% | 1,856 | 82,335 | 23 Dec 2025 | Direct | ||
| Cary Baker | PI | Restricted Stock Units | Options Exercise | -70.4% | -1,856 | 782 | 23 Dec 2025 | Direct | ||
| Sylebra Capital Llc | PI | Common Stock | Sale | -10.6% | $20,242,816 | $150.36 | -134,629 | 1,132,152 | 15 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -3.84% | $7,415,013 | $146.62 | -50,573 | 1,266,781 | 12 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -6.75% | $14,575,390 | $152.87 | -95,345 | 1,317,354 | 11 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -5.65% | $13,155,321 | $155.49 | -84,604 | 1,412,699 | 10 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | $6,400 | $160.01 | -40 | 1,497,303 | 09 Dec 2025 | See Footnote | |
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.17% | $400,835 | $160.72 | -2,494 | 1,497,343 | 08 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.09% | $221,108 | $161.04 | -1,373 | 1,499,837 | 05 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.21% | $508,589 | $160.59 | -3,167 | 1,501,210 | 04 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -2.67% | $6,923,891 | $167.97 | -41,221 | 1,504,377 | 03 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -2.64% | $7,044,463 | $168.23 | -41,874 | 1,545,598 | 02 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -1.92% | $5,187,307 | $167.02 | -31,058 | 1,587,472 | 01 Dec 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -1.36% | $3,848,908 | $172.62 | -22,297 | 1,618,530 | 28 Nov 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -2.06% | $5,936,721 | $171.80 | -34,556 | 1,640,827 | 26 Nov 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -2.68% | $7,734,030 | $167.73 | -46,110 | 1,675,383 | 25 Nov 2025 | See Footnote |
| Cary Baker | PI | Common Stock | Gift | -1.23% | -1,000 | 80,479 | 25 Nov 2025 | Direct | ||
| Sylebra Capital Llc | PI | Common Stock | Sale | -1.82% | $5,093,788 | $159.42 | -31,952 | 1,721,493 | 24 Nov 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.17% | $472,426 | $155.10 | -3,046 | 1,753,445 | 21 Nov 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.46% | $1,263,262 | $156.32 | -8,081 | 1,756,491 | 20 Nov 2025 | See Footnote |
| Chris Ph.d. Diorio | PI | Common Stock | Gift | -1.85% | -7,000 | 371,005 | 19 Nov 2025 | Direct | ||
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.21% | $589,564 | $156.30 | -3,772 | 1,764,572 | 12 Nov 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -1.67% | $4,668,900 | $155.63 | -30,000 | 1,768,344 | 11 Nov 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.35% | $1,012,851 | $162.16 | -6,246 | 1,798,344 | 07 Nov 2025 | See Footnote |
| Miron Washington | PI | Common Stock | Sale | -14.4% | $54,357 | $158.94 | -342 | 2,040 | 07 Nov 2025 | Direct |
| Sylebra Capital Llc | PI | Common Stock | Sale | -1.27% | $3,981,846 | $171.95 | -23,157 | 1,804,590 | 06 Nov 2025 | See Footnote |
| Sylebra Capital Llc | PI | Common Stock | Sale | -0.08% | $305,641 | $202.01 | -1,513 | 1,827,747 | 03 Nov 2025 | See Footnote |
| Chris Ph.d. Diorio | PI | Common Stock | Options Exercise | 6.63% | 23,500 | 378,005 | 30 Oct 2025 | Direct | ||
| Chris Ph.d. Diorio | PI | Stock Option (right to buy) | Options Exercise | -100% | -23,500 | 0 | 30 Oct 2025 | Direct | ||
| Arthur L. Valdez Jr. | PI | Restricted Stock Units | Award | 1,220 | 1,220 | 20 Oct 2025 | Direct | |||
| Chris Ph.d. Diorio | PI | Common Stock | Tax liability | -0.62% | -2,219 | 354,505 | 23 Sep 2025 | Direct | ||
| Chris Ph.d. Diorio | PI | Common Stock | Options Exercise | 1.61% | 5,636 | 356,724 | 23 Sep 2025 | Direct | ||
| Chris Ph.d. Diorio | PI | Restricted Stock Units | Options Exercise | -52.1% | -5,636 | 5,188 | 23 Sep 2025 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.